Quiz Questions

Question 1 1 Marks

What is the purpose of using thread micrometer?

A

Measure effective diameter

B

Measure minor diameter

C

Measure major diameter

D

Measure pitch of the thread

Question 2 1 Marks

How can measure the minor diameter of a
internal thread?

A

By vernier caliper

B

By screw thread micrometer

C

By three wire method

D

Using slip gauge pack

Question 3 1 Marks

Calculate the driven gear to cut 1.5mm pitch thread on a job using a lathe having lead screw of 5mm pitch with driver gear of 30 teeth?

A

50

B

60

C

100

D

120

Question 4 1 Marks

Calculate the gear ratio to cut a 1/4 inch lead on a lathe with lead screw of 2TPI?

A

(2/3)

B

(3/4)

C

(1/2)

D

(1/4)

Question 5 1 Marks

Which one is the disadvantage of taper turning by compound slide method?

A

Only external taper can be turned

B

Damages the centre drilled holes of the work

C

Steep taper cannot be produced

D

Taper length is limited to the movement of the top slide

Question 6 1 Marks

How many number of teeth in translating gear used for cutting metric thread on British lathe?

A

63

B

30

C

120

D

100

Question 7 1 Marks

Which instrument can measure angle upto an accuracy of 5 minutes?

A

Bevel gauge

B

Combination set

C

Vernier bevel protractor

D

Angle gauge

Question 8 1 Marks

What is the only thread form cut using diehead is turret lathe?

A

Square

B

ACME

C

V-Thread

D

Saw - Tooth

Question 9 1 Marks

Which is the smallest unit of angular measurement?

A

Radian

B

Degree

C

Minutes

D

Seconds

Question 10 1 Marks

Which wheel is used for grinding tough
materials?

A

Silicon carbide

B

Aluminium oxide

C

Cemented carbide

D

Ceramic

Question 11 1 Marks

Which type of thread is used in screw jack spindle?

A

BSW thread

B

BSF thread

C

Square thread

D

Worm thread

Question 12 1 Marks

How can measure the minor diameter of a internal thread accurately?

A

By three wire method

B

By screw thread micrometer

C

By plug gauge

D

By using slip gauge and precision rollers

Question 13 1 Marks

Which angle is ground on ACME threading tool?

A

29 Degree

B

45 Degree

C

55 Degree

D

60 Degree

Question 14 1 Marks

Which one is the disadvantage of using tail stock offset method?

A

Only hand feed can be given

B

External threads on taper can't produce

C

Taper length is limited

D

Taper turning is possible when work held between centre only

Question 15 1 Marks

Which bonding material is not affected by
water, acid or normal temperature?

A

Vetrified

B

Resinoid

C

Backlite

D

Rubber

Question 16 1 Marks

What is formula for finding depth of BSW external thread?

A

0.6134 x pitch

B

0.6403 x pitch

C

0.7 x pitch

D

0.5 x pitch

Question 17 1 Marks

What is the purpose of using taper parallels
in thread measurement?

A

To measure the minor diameter of external thread

B

To measure the minor diameter of internal thread

C

To measure the major diameter of external thread

D

To measure the major diameter of internal thread

Question 18 1 Marks

Which formula is used to find depth of buttress thread?

A

0.5 x pitch

B

0.6134 x pitch

C

0.6403 x pitch

D

0.75 x pitch

Question 19 1 Marks

Which device uses buttress thread?

A

Screw jack

B

Lead screw of lathe

C

Carpentry vice

D

General purpose nut and bolt

Question 20 1 Marks

How much times the spindle rotate the lead screw to cut 3 mm pitch thread in a 12 mm pitch lead screw?

A

4 times

B

5 times

C

6 times

D

3 times

Question 21 1 Marks

How many teeth are in translating gear for cutting metric thread on British lathe?

A

122

B

125

C

127

D

129

Question 22 1 Marks

What is the reason for providing buttress thread in carpentry vice?

A

For better appearance

B

For easy use

C

For easy manufacturing

D

Pressure acts at one flank

Question 23 1 Marks

What is the core dia of square thread 75 x 11 mm pitch?

A

70 mm

B

60 mm

C

64 mm

D

65.8 mm

Question 24 1 Marks

Calculate the depth of buttress thread diameter 30 mm of pitch 3mm?

A

1.25 mm

B

1.5 mm

C

2.25 mm

D

3.00 mm

Question 25 1 Marks

What is calculated by formula 0.75 x pitch?

A

depth of square thread

B

depth of metric thread

C

depth of acme thread

D

depth of buttress thread

Question 26 1 Marks

Which part of the lathe is locked while the form tool method is used for turning taper?

A

Compound rest

B

Carriage

C

Tail stock

D

Head stock

Question 27 1 Marks

What is the formula to find out core diameter of external thread by using prisms and micrometer?

A

Core dia = Measurement over prisms ? Height of prisms ? Single depth of thread

B

Core dia = Measurement over prisms ? Height of prisms + Two depth

C

Core dia = Measurement over prisms + Height of prisms ? Single depth

D

Core dia = Measurement over prisms ? Height of prisms + Single depth

Question 28 1 Marks

Which is the form of Trapezoidal thread?

A

BSW

B

Metric

C

BSF

D

ACME

Question 29 1 Marks

What is the thread depth of square thread SQ60x9?

A

4.5 mm

B

9.0 mm

C

18 mm

D

42 mm

Question 30 1 Marks

Which formula is to find crest width of ACME thread?

A

0.317 x pitch

B

0.335 x pitch

C

0.5 x pitch

D

0.75 x pitch

Question 31 1 Marks

Calculate the driven gear to cut 2mm pitch on a job using a lathe having lead screw of 4mm pitch with driven gear 50 teeth?

A

50

B

60

C

100

D

120

Question 32 1 Marks

Calculate the least count of V.B.P if 23 div on
main scale is divided into 12 equal parts

A

1 Degree - 50 Degree

B

100 Degree

C

28 Degree

D

5 Degree

Question 33 1 Marks

Which parameter of a thread is measured by three wire method?

A

Pitch

B

Major diameter

C

Minor diameter

D

Effective diameter

Question 34 1 Marks

What is 1.25 stands for a metric thread designated as M12 x 1.25?

A

Major dia of thread

B

Minor dia of thread

C

Depth of thread

D

Pitch of the thread

Question 35 1 Marks

How is the filler material distributed in the joint in braze welding?

A

By splashing

B

By fission

C

By fusion

D

By capillary action

Question 36 1 Marks

Which method is used for turning steep taper?

A

Form tool

B

Offset tail stock

C

Compound slide swivel

D

Taper turning attachment

Question 37 1 Marks

What does BIS stand for?

A

Bureau of international standard

B

Bureau of Indian standard

C

Bureau of international society

D

Bureau of Indian society

Question 38 1 Marks

What is the width of the tool to cut a square thread of 60 x 9 mm pitch?

A

4.5 mm

B

9.5 mm

C

9 mm

D

8.5 mm

Question 39 1 Marks

What is the isolating medium to prevent rapid cooling after brazing a tipped tool?

A

Water

B

Mica powder

C

Oil

D

Wet sand

Question 40 1 Marks

What is the relationship between pitch and depth of a buttress thread?

A

depth = 0.5 x pitch

B

depth = 0.6134 x pitch

C

depth = 0.6403 x pitch

D

depth = 0.75 x pitch

Question 41 1 Marks

Convert 8 Degree 44 minutes into minutes?

A

424

B

428

C

524

D

536

Question 42 1 Marks

Find the gears required to cut 4.5mm pitch on a lathe having a lead screw of 4 TPI. Gears available from 20 to 120 teeth by 5 teeth with a special gear of 127T.

A

90T on driver and 127T on driven

B

127T on driver and 90T on driven

C

60T on driver and 127T on driven

D

127T on driver and 60T on driven

Question 43 1 Marks

Which one is the example for transmission of motion using thread

A

Rack and pinion

B

Worm and worm shaft

C

Crank and slotted link

D

Bevel gearing

Question 44 1 Marks

Which method of thread forming does not produce chips and used in mass production?

A

Taps and dies

B

Thread rolling

C

Thread milling

D

Thread grinding

Question 45 1 Marks

Calculate the least count of V.B.P if 23 div on main scale is divided into 12 scale divisions

A

3 minutes

B

5 minutes

C

4 minutes

D

2 minutes

Question 46 1 Marks

How is the vernier height gauge generally specified?

A

Width of beam

B

Height of beam

C

Thickness of beam

D

Size of base

Question 47 1 Marks

How metric chasing dial differ from British chasing dial?

A

Same as British chasing dial

B

One worm wheel and different dial

C

One worm wheel and one dial

D

More than one worm wheel and different dial

Question 48 1 Marks

Which material is used for making the head of soldering iron?

A

Forged copper

B

Forged steel

C

Forged aluminium

D

Stainless steel

Question 49 1 Marks

Which is main criteria to increase the tool life?

A

Feed

B

Depth of cut

C

Material

D

Cutting speed

Question 50 1 Marks

Which chuck is mainly used for getting a
very effective grip over the job?

A

Push - out chucks

B

Collect chuck

C

Magnetic chuck

D

Hydraulic chuck

Question 51 1 Marks

Which is the welding process, if base metal and filler is melted to form the joint?

A

By braze welding

B

By arc welding

C

By gas welding

D

By tig welding

Question 52 1 Marks

What is the shape of buttress thread flank?

A

One flank is 90 Degree and the other 45 Degree

B

One flank is 30 Degree and the other 45 Degree

C

One flank is 60 Degree and the other 45 Degree

D

Two flanks are at 60 Degree

Question 53 1 Marks

Calculate the change gear ratio to cut a thread of 7/16" lead on a lathe with lead screw of 4 TPI?

A

04-Jul

B

07-Apr

C

03-Apr

D

03-Jul

Question 54 1 Marks

Calculate the change gears necessary to cut a thread of 7/16" lead on a lathe with a lead screw of 4TPI?

A

Driver 70T, Driven 40T

B

Driver 30T, Driven 40T

C

Driven 70T, Driver 40T

D

Driven 30T, Driver 40T

Question 55 1 Marks

Which method of brazing is commonly used to braze of carbide tip on a shank?

A

Furnace brazing

B

Induction brazing

C

Arc brazing

D

Torch brazing

Question 56 1 Marks

Which form of thread is widely used for fastening purpose?

A

V - thread

B

Square thread

C

Saw tooth thread

D

Knuckle thread

Question 57 1 Marks

Find the change gear (driven gear) to cut 2.5mm pitch thread using a lathe having lead screw of pitch 5mm with driver gear 60 teeth?

A

60

B

100

C

120

D

150

Question 58 1 Marks

Calculate the width of flat of buttress thread 6 mm pitch?

A

0.75 mm

B

1 mm

C

1.5 mm

D

2 mm

Question 59 1 Marks

What is the effect of reversing the machine with out disengaging the half nut in thread cutting?

A

For avoid catching the thread in each cut

B

For improve the productivity

C

Reduce the wear and tear of half nut

D

For the use of chasing dial

Question 60 1 Marks

What is the depth of buttress thread if the
pitch is 1.8 mm of 45 Degree angle?

A

0.42 mm

B

0.910 mm

C

1.23 mm

D

1.35 mm

Question 61 1 Marks

Select a suitable instrument for measuring angles?

A

Vernier caliper

B

Calipers

C

Vernier bevel protractor

D

Vernier height gauge

Question 62 1 Marks

Which angle is provided on the metric screw thread micrometer anvil?

A

60 Degree

B

47.5 Degree

C

55 Degree

D

30 Degree

Question 63 1 Marks

What is the main disadvantage of a braze welded joints?

A

The joint not suitable for thicker sections

B

Dissimilar metals can be joined

C

It take more time for repairing

D

Heavy distortion due to heat

Question 64 1 Marks

Which thread is used for general purpose
fastening?

A

BSW

B

BSF

C

BA

D

Unified

Question 65 1 Marks

Which material is used for making nozzle for gas welding?

A

Mild steel

B

High carbon steel

C

Copper

D

Bronze

Question 66 1 Marks

What is protected by providing pieces between work and carrier while clamping?

A

Carrier

B

Live centre

C

Job surface

D

Dead centre

Question 67 1 Marks

What is thread element that determine the direction of rotation on screw thread?

A

Pitch of thread

B

Lead of thread

C

Depth of thread

D

Hand of thread

Question 68 1 Marks

Calculate the change gear (driven gear) if driver is 50 teeth to cut 2.5mm pitch thread on a job by lathe having a lead screw of 5mm pitch?

A

60

B

100

C

120

D

150

Question 69 1 Marks

Calculate the depth of buttress thread 60 mm diameter of 9 mm pitch?

A

4.75 mm

B

5.75 mm

C

6.75 mm

D

7.75 mm

Question 70 1 Marks

Which mandrel is used for machining similar part where internal diameter vary slightly?

A

Gang mandrels

B

Stepped mandrels

C

Taper Shank mandrels

D

Expansion stud mandrel

Question 71 1 Marks

Which material is suitable for button die chaser?

A

Low strength material

B

High strength material

C

H.S.S

D

H.C.S

Question 72 1 Marks

Which type of thread is produced by tap and die?

A

Square thread

B

ACME thread

C

V - thread

D

Saw - tooth thread

Question 73 1 Marks

How many un-numbered divisions on the British chasing dial?

A

3

B

4

C

12

D

18

Question 74 1 Marks

How is the 'length of sine bars' specified?

A

Distance between the centres of the rollers

B

Length of datum surface

C

Length of the rollers

D

Total length of the sine bar

Question 75 1 Marks

What is the shape of interchangeable anvils used in screw thread micrometer?

A

Square shape

B

V-shape

C

Circular shape

D

Radius shape

Question 76 1 Marks

Which carrier with V-groove provided and used to hold small diameter and square sections?

A

Bent tail

B

Clamp type

C

Straight tail

D

Safety clamp type

Question 77 1 Marks

What is the value of tool life index for cutting cast iron by cemented carbide tool?

A

0.1

B

0.125

C

0.2

D

0.128

Question 78 1 Marks

What is the name of device used to drive the work during turning between centres?

A

Lathe carrier

B

Catch plate

C

Driving plate

D

Face plate

Question 79 1 Marks

What is the minor diameter of Trapezoidal square thread Tr 40 x 7 depth clearance of 0.01 mm?

A

32.98 mm

B

33.00 mm

C

36.49 mm

D

36.50 mm

Question 80 1 Marks

Which method is preferred for producing small length taper with least accuracy?

A

Form tool method

B

Compound slide method

C

Tail stock offset method

D

Taper turning attachment method

Question 81 1 Marks

What is the reason for using ACME thread in lathe lead screw?

A

Easily available

B

Manufacturing cost is less

C

Enable easy engagement

D

Suitable for big diameter thread

Question 82 1 Marks

Which mandrels is NOT used in between lathe centres?

A

Cone mandrels

B

Gang mandrels

C

Stepped mandrels

D

Taper Shank mandrels

Question 83 1 Marks

Which formula is used to find depth of ACME thread?

A

0.5 x pitch

B

0.6134 x pitch

C

0.6403 x pitch

D

0.75 x pitch

Question 84 1 Marks

What is the relationship between pitch and depth of a square thread?

A

Depth is 1/4 pitch

B

Depth is 1/2 pitch

C

Depth is 3/4 pitch

D

Depth is equal to pitch

Question 85 1 Marks

What type of thread can be produced by a die?

A

Internal V - thread

B

External V - thread

C

Internal square thread

D

External square thread

Question 86 1 Marks

Calculate the driven gear required to cut 4mm pitch thread is a lathe having lead screw of 4mm with driven gear of 60 teeth?

A

50

B

60

C

100

D

120

Question 87 1 Marks

Which is the commonly used method to produce thread in nut?

A

Tapping

B

Thread grinding

C

Thread casting

D

Thread milling

Question 88 1 Marks

What is the formula used to find flat width of a buttress thread?

A

Pitch/2

B

Pitch/4

C

Pitch/6

D

Pitch/8

Question 89 1 Marks

Which terms are needed to calculate tool life index?

A

Cutting speed and feed

B

Depth of cut and rpm

C

Cutting speed time and index

D

Cutting speed and rpm of job

Question 90 1 Marks

What is removing dull grain in order to make grinding wheel sharp?

A

Loading

B

Glazing

C

Dressing

D

Trueing

Question 91 1 Marks

How many seconds is 1 Degree?

A

6000%

B

36000%

C

360000%

D

3600000%

Question 92 1 Marks

Which is the cause of small particles of the material become embedded in the space between the grains of the grinding wheel?

A

Glazing

B

Loading

C

Grooving

D

Dressing

Question 93 1 Marks

What is the purpose of tail on the lathe carrier?

A

Give good finish

B

Protect the work

C

Protect the operator

D

Locate and drive the work

Question 94 1 Marks

Why the thread chaser is used to form threads?

A

For easy thread cutting

B

To get proper, crest, flat, root radius and profile

C

To time saving

D

To reduce labour

Question 95 1 Marks

Which thread is recommended for pipe and
pipe fittings?

A

BSW thread

B

BSF thread

C

BSP thread

D

BA thread

Question 96 1 Marks

Find the gears for simple gear train, if pitch
of lead screw is 6 mm and pitch of thread to be cut
is 2 mm?

A

30/120

B

50/120

C

40/120

D

40/150

Question 97 1 Marks

Which diameter is maintained in a job for making threads by rolling?

A

Major diameter

B

Minor diameter

C

Pitch diameter

D

Root diameter

Question 98 1 Marks

What is the core dia of square thread 62 x 10 mm pitch?

A

52.7 mm

B

52 mm

C

57.4 mm

D

56.45 mm

Question 99 1 Marks

What is the use of a sine bar?

A

To determine the angle of tapered job

B

To measure the length of a taper job

C

To measure the gap

D

To measure the diameter of the job

Question 100 1 Marks

What is the core diameter of BSW thread of 1 inch outer dia and 8 TPI

A

0.80 Inch

B

0.81 Inch

C

0.83 Inch

D

0.84 Inch

Question 101 1 Marks

Calculate the change gear required to cut 4mm pitch thread in a lathe having lead screw of 4mm (lathe stud gear (driver has 50 teeth)

A

25

B

50

C

100

D

150

Question 102 1 Marks

What is the thread depth of square thread SQ60x9?

A

4.5 mm

B

9.0 mm

C

18 mm

D

42 mm

Question 103 1 Marks

What is the name of thread producing method by cold forging and by plastic deformation?

A

Thread rolling

B

Thread milling

C

Thread grinding

D

Thread casting

Question 104 1 Marks

A thread is represented as M12 x 1.5. What does represent the letter 12?

A

Major diameter

B

Minor diameter

C

Pitch

D

Root diameter

Question 105 1 Marks

Which formula is used to find crest width of a buttress thread?

A

0.125 x pitch

B

0.317 x pitch

C

0.335 x pitch

D

0.5 x pitch

Question 106 1 Marks

What is the name of chuck that hardend steel sleeve having slits cut partly?

A

Combination chuck

B

Collect chuck

C

Magnetic chuck

D

Hydrolic chuck

Question 107 1 Marks

Which welding method is more suitable for joining dissimilar metals readily?

A

Braze welding

B

Arc welding

C

Tig welding

D

Gas welding

Question 108 1 Marks

Which part is pivoted to the disc of vernier bevel protractor?

A

Disc

B

Stock

C

Dial

D

Blade

Question 109 1 Marks

What is the width of the tool to cut square thread of 30 x 3 mm pitch?

A

3 mm

B

1.5 mm

C

6 mm

D

2 mm

Question 110 1 Marks

How much the compound rest should be tilted for cutting metric thread by compound rest?

A

15 Degree

B

30 Degree

C

45 Degree

D

60 Degree

Question 111 1 Marks

Which is the angle of buttress thread?

A

30 Degree

B

45 Degree

C

55 Degree

D

60 Degree

Question 112 1 Marks

Calculate the change gears to cut a worm of 0.35" lead on a lathe with a lead screw of 4TPI?

A

Driver 30T, Driven 40

B

Driver 40T, Driven 50

C

Driver 50T, Driven 30

D

Driver 70T, Driven 50

Question 113 1 Marks

Which method of holding is used for lengthy work to avoid over hanging?

A

In between centres

B

In four jaw chuck

C

In face plate

D

Angle plate

Question 114 1 Marks

Which is the advantage of taper turning by compound slide method?

A

Steep taper can be produced

B

Long taper can be produced

C

Thread on taper portion can be produced

D

Most suitable for duplicate taper work

Question 115 1 Marks

What is the criteria for the selection of interchangeable anvil of a screw thread micrometer?

A

Major diameter

B

Minor diameter

C

Profile and pitch

D

Root diameter

Question 116 1 Marks

What percentage of cutting speed is reduced for tool life dubling?

A

0.081

B

0.082

C

0.083

D

0.084

Question 117 1 Marks

What is the thread form cut by using
chasers?

A

Trapezoidal thread

B

External and internal V - Thread

C

External square thread

D

Internal square thread

Question 118 1 Marks

What is the use of BSW thread?

A

General purpose fastening

B

Load fitting

C

Fast movement

D

Used in electrical appliances

Question 119 1 Marks

What is the formula for finding the depth of
a BIS metric thread?

A

0.6403 x pitch

B

0.6134 x pitch

C

0.6431 x pitch

D

0.6043 x pitch

Question 120 1 Marks

Which method of thread forming produce threads on non-metals?

A

Thread casting

B

Thread milling

C

Thread rolling

D

Thread grinding

Question 121 1 Marks

How to measure the diameter of the small end of a external taper precisely?

A

Sine bar

B

Precision roller with slip gauge

C

Vernier calipers

D

Screw gauge

Question 122 1 Marks

What is the schedule of lubrication for
lathe bed?

A

Daily

B

Weekly

C

Monthly

D

Frequently

Question 123 1 Marks

Which type thread is used in lathe lead screw?

A

Metric

B

Buttress

C

Square

D

ACME

Question 124 1 Marks

Calculate the amount of off-set if total length of job = 80 mm and tan = 5 Degree 45 minutes?

A

10 mm

B

7 mm

C

8 mm

D

12 mm

Question 125 1 Marks

What is the purpose of the beveled edges of
the rule in a vernier bevel protractor?

A

Checking squreness

B

Checking flatness

C

Checking 45 Degree and 60 Degree

D

Checking parallelism

Question 126 1 Marks

What is the tool life index of cemented carbide tool for turning high carbon steel?

A

0.15

B

0.2

C

0.4

D

0.35

Question 127 1 Marks

What are the uses of B.S.P thread?

A

General fastening

B

Automobile industries

C

Pipe and pipe fittings

D

Load transmition

Question 128 1 Marks

What is the angle of ACME thread

A

29 Degree

B

45 Degree

C

55 Degree

D

60 Degree

Question 129 1 Marks

What is the depth of square thread 60 x 5 mm pitch?

A

5 mm

B

2.5 mm

C

3 mm

D

4 mm

Question 130 1 Marks

What is the use of hand chaser?

A

To cut new thread

B

Correcting and finishing a thread

C

For production job

D

For making square thread

Question 131 1 Marks

Find the gear required to cut 3 mm pitch in a lathe having a lead screw of 6 TPI gear available from 20 to 120 teeth by 5 teeth with a special gear of 127 teeth?

A

Driver 90 teeth Driven 127 teeth

B

Driver 60 teeth Driven 20 teeth

C

Driver 127 teeth Driven 90 teeth

D

Driver 20 teeth Driven 60 teeth

Question 132 1 Marks

What is the depth of ACME thread of 1inch major diameter 6TPI?

A

0.08

B

0.082

C

0.084

D

0.09

Question 133 1 Marks

What is the accuracy of the protractor head
of a combination set?

A

1 Degree

B

5 Degree

C

1 Degree

D

1 Degree

Question 134 1 Marks

What is the minor diameter of screw thread SQ 62 x 10.5 with depth clearance of 0.12 mm?

A

46.64 mm

B

51.26 mm

C

51.88 mm

D

51.00 mm

Question 135 1 Marks

What term indicate actual size of the
abrasive grain?

A

Structure

B

Grit size

C

Grade of bond

D

Abrassive type

Question 136 1 Marks

Calculate the flat width of 10 mm pitch buttress thread?

A

1.25 mm

B

2.25 mm

C

3.25 mm

D

4.25 mm

Question 137 1 Marks

What is the disadvantage of chaser?

A

To cut V-thread only

B

To cut square thread only

C

To cut knuckle thread only

D

To cut trapezoid thread only

Question 138 1 Marks

What is the angle of saw tooth thread?

A

29 Degree

B

30 Degree

C

45 Degree

D

90 Degree

Question 139 1 Marks

Calculate the change gear (driver gear) if driven gear has 120 teeth to cut 3mm pitch on a job using lathe having 6 mm pitch lead screw?

A

50

B

60

C

100

D

150

Question 140 1 Marks

Which is the angle of inclination in the thread to the imaginary perpendicular line?

A

Acute angle

B

Right angle

C

Helix angle

D

Obtuse angle

Question 141 1 Marks

What is the purpose of using v prism method in thread measurement?

A

Measure major diameter

B

Measure minor diameter

C

Measure effective diameter

D

Measure the pitch of the thread

Question 142 1 Marks

Which part of the combination set is used
for measuring the angles?

A

Protractor head

B

Square head

C

Centre head

D

Rule

Question 143 1 Marks

Which mechanism is used for converting
linear motion into rotary motion in plunger dial
gauge?

A

Rack and scroll mechanism

B

Scroll and pinion mechanism

C

Rack and pinion mechanism

D

Lever and scroll mechanism

Question 144 1 Marks

Which method is non metallic threads are produced?

A

Thread milling

B

Thread casting

C

Thread grinding

D

Thread chasing

Question 145 1 Marks

Which is the chip less method of thread production?

A

Die head

B

Thread rolling

C

Thread milling

D

Thread grinding

Question 146 1 Marks

Why the ball centre is preferred in tail stock offset method?

A

For good surface finish

B

For accurate setting

C

For provide power feed

D

To avoid damage to the centre drilled hole of the job

Question 147 1 Marks

Which is used to support hollows end jobs?

A

Ball centre

B

Pipe centre

C

Female centre

D

Tipped centre

Question 148 1 Marks

What is the angle of a BIS metric thread?

A

27.5 Degree

B

45 Degree

C

55 Degree

D

60 Degree

Question 149 1 Marks

What is the formula for finding gear ratio for fractional pitch thread?

A

DR/DN = Leads of screw to be cut X No. Of threads per inch of lead screw

B

DR/DN = TPI on lead screw/ TPI to cut

C

DR/DN = Lead of head screw/ Lead of work

D

DR/DN = Lead of work/ No. Of threads per inch

Question 150 1 Marks

How many carriers are available in a set?

A

4 numbers

B

6 numbers

C

8 numbers

D

10 numbers

Question 151 1 Marks

Calculate the driven gear to cut 1.5mm pitch thread on a job using a lathe having lead screw of 4mm pitch with driver gear 30 teeth?

A

50

B

60

C

80

D

100

Question 152 1 Marks

Which method of threading is used in mass production?

A

Use single point cutting tool

B

Thread grinding

C

Using taps and dies

D

Thread rolling

Question 153 1 Marks

What will happen if threading tool is set below centre height?

A

Pitch will changed

B

Difficult for catching

C

Thread will be damaged

D

Major diameter will changed

Question 154 1 Marks

What is the angle of metric ACME thread

A

29 Degree

B

30 Degree

C

45 Degree

D

47.5 Degree

Question 155 1 Marks

Which is the method to produce accurate
internal thread?

A

Thread chasers

B

Thread rolling

C

Thread milling

D

Using dies

Question 156 1 Marks

Which one of the following factor greatly causes to reduce tool life?

A

Cutting speed

B

Feed

C

Depth of cut

D

Material

Question 157 1 Marks

How the thread are formed in thread rolling?

A

Grinding

B

Casting

C

Plastic deformation

D

Milling

Question 158 1 Marks

What should be the heights of gauge block to be built to check the work angle of 30 Degree using 150 mm sine bar?

A

291.26

B

145.63

C

75

D

38.62

Question 159 1 Marks

What is the least count of vernier height
gauge?

A

0.001 mm

B

0.002 mm

C

0.005 mm

D

0.020 mm

Question 160 1 Marks

Which formula is used to find root width of a buttress thread?

A

0.125 x pitch

B

0.317 x pitch

C

0.335 x pitch

D

0.5 x pitch

Question 161 1 Marks

What is the reason for using dial indicator instead of scriber point in Vernier height gauge?

A

To check eccentricity

B

For accurate marking

C

For accurate measuring

D

For good appearance

Question 162 1 Marks

Which mandrel is manufactured in order to reduce the number of mandrel?

A

Threaded mandrel

B

Stepped mandrel

C

Solid mandrel

D

Gang mandrel

Question 163 1 Marks

What is the depth of cut for 10TPI BSW thread?

A

0.6403 x 1/10 Inch

B

0.6134 x 1/10 Inch

C

0.6304 x 1/10 Inch

D

0.6314 x 1/10 Inch

Question 164 1 Marks

Which device is used as datum while marking with Vernier height gauge?

A

Face plate

B

Surface plate

C

Angle plate

D

Driving plate

Question 165 1 Marks

Which is the term used to express grinding
wheels to hold the abrasive particle together?

A

Grain

B

Grit

C

Structure

D

Bond

Question 166 1 Marks

Which type of centre is used in the end of the job if no counter sink hole is permitted?

A

Insert type centre

B

Revolving centre

C

Female centre

D

Ball centre

Quiz Questions

What is the purpose of using thread micrometer?

How can measure the minor diameter of a internal thread?

Calculate the driven gear to cut 1.5mm pitch thread on a job using a lathe having lead screw of 5mm pitch with driver gear of 30 teeth?

Calculate the gear ratio to cut a 1/4 inch lead on a lathe with lead screw of 2TPI?

Which one is the disadvantage of taper turning by compound slide method?

How many number of teeth in translating gear used for cutting metric thread on British lathe?

Which instrument can measure angle upto an accuracy of 5 minutes?

What is the only thread form cut using diehead is turret lathe?

Which is the smallest unit of angular measurement?

Which wheel is used for grinding tough materials?

Which type of thread is used in screw jack spindle?

How can measure the minor diameter of a internal thread accurately?

Which angle is ground on ACME threading tool?

Which one is the disadvantage of using tail stock offset method?

Which bonding material is not affected by water, acid or normal temperature?

What is formula for finding depth of BSW external thread?

What is the purpose of using taper parallels in thread measurement?

Which formula is used to find depth of buttress thread?

Which device uses buttress thread?

How much times the spindle rotate the lead screw to cut 3 mm pitch thread in a 12 mm pitch lead screw?

How many teeth are in translating gear for cutting metric thread on British lathe?

What is the reason for providing buttress thread in carpentry vice?

What is the core dia of square thread 75 x 11 mm pitch?

Calculate the depth of buttress thread diameter 30 mm of pitch 3mm?

What is calculated by formula 0.75 x pitch?

Which part of the lathe is locked while the form tool method is used for turning taper?

What is the formula to find out core diameter of external thread by using prisms and micrometer?

Which is the form of Trapezoidal thread?

What is the thread depth of square thread SQ60x9?

Which formula is to find crest width of ACME thread?

Calculate the driven gear to cut 2mm pitch on a job using a lathe having lead screw of 4mm pitch with driven gear 50 teeth?

Calculate the least count of V.B.P if 23 div on main scale is divided into 12 equal parts

Which parameter of a thread is measured by three wire method?

What is 1.25 stands for a metric thread designated as M12 x 1.25?

How is the filler material distributed in the joint in braze welding?

Which method is used for turning steep taper?

What does BIS stand for?

What is the width of the tool to cut a square thread of 60 x 9 mm pitch?

What is the isolating medium to prevent rapid cooling after brazing a tipped tool?

What is the relationship between pitch and depth of a buttress thread?

Convert 8 Degree 44 minutes into minutes?

Find the gears required to cut 4.5mm pitch on a lathe having a lead screw of 4 TPI. Gears available from 20 to 120 teeth by 5 teeth with a special gear of 127T.

Which one is the example for transmission of motion using thread

Which method of thread forming does not produce chips and used in mass production?

Calculate the least count of V.B.P if 23 div on main scale is divided into 12 scale divisions

How is the vernier height gauge generally specified?

How metric chasing dial differ from British chasing dial?

Which material is used for making the head of soldering iron?

Which is main criteria to increase the tool life?

Which chuck is mainly used for getting a very effective grip over the job?

Which is the welding process, if base metal and filler is melted to form the joint?

What is the shape of buttress thread flank?

Calculate the change gear ratio to cut a thread of 7/16" lead on a lathe with lead screw of 4 TPI?

Calculate the change gears necessary to cut a thread of 7/16" lead on a lathe with a lead screw of 4TPI?

Which method of brazing is commonly used to braze of carbide tip on a shank?

Which form of thread is widely used for fastening purpose?

Find the change gear (driven gear) to cut 2.5mm pitch thread using a lathe having lead screw of pitch 5mm with driver gear 60 teeth?

Calculate the width of flat of buttress thread 6 mm pitch?

What is the effect of reversing the machine with out disengaging the half nut in thread cutting?

What is the depth of buttress thread if the pitch is 1.8 mm of 45 Degree angle?

Select a suitable instrument for measuring angles?

Which angle is provided on the metric screw thread micrometer anvil?

What is the main disadvantage of a braze welded joints?

Which thread is used for general purpose fastening?

Which material is used for making nozzle for gas welding?

What is protected by providing pieces between work and carrier while clamping?

What is thread element that determine the direction of rotation on screw thread?

Calculate the change gear (driven gear) if driver is 50 teeth to cut 2.5mm pitch thread on a job by lathe having a lead screw of 5mm pitch?

Calculate the depth of buttress thread 60 mm diameter of 9 mm pitch?

Which mandrel is used for machining similar part where internal diameter vary slightly?

Which material is suitable for button die chaser?

Which type of thread is produced by tap and die?

How many un-numbered divisions on the British chasing dial?

How is the 'length of sine bars' specified?

What is the shape of interchangeable anvils used in screw thread micrometer?

Which carrier with V-groove provided and used to hold small diameter and square sections?

What is the value of tool life index for cutting cast iron by cemented carbide tool?

What is the name of device used to drive the work during turning between centres?

What is the minor diameter of Trapezoidal square thread Tr 40 x 7 depth clearance of 0.01 mm?

How can measure the minor diameter of a
internal thread?

Which wheel is used for grinding tough
materials?

Which bonding material is not affected by
water, acid or normal temperature?

What is the purpose of using taper parallels
in thread measurement?

Calculate the least count of V.B.P if 23 div on
main scale is divided into 12 equal parts

Which chuck is mainly used for getting a
very effective grip over the job?

What is the depth of buttress thread if the
pitch is 1.8 mm of 45 Degree angle?

Which thread is used for general purpose
fastening?

Which thread is recommended for pipe and
pipe fittings?

Find the gears for simple gear train, if pitch
of lead screw is 6 mm and pitch of thread to be cut
is 2 mm?

What is the thread form cut by using
chasers?

What is the formula for finding the depth of
a BIS metric thread?

What is the schedule of lubrication for
lathe bed?

What is the purpose of the beveled edges of
the rule in a vernier bevel protractor?

What is the accuracy of the protractor head
of a combination set?

What term indicate actual size of the
abrasive grain?

Which part of the combination set is used
for measuring the angles?

Which mechanism is used for converting
linear motion into rotary motion in plunger dial
gauge?