Quiz Questions

Question 1 1 Marks

Calculate change gears to cut a three start thread having a pitch of 1.5 mm; the lead screw has a pitch of 6 mm.

A

Driver 45 teeth, Driven 60 teeth

B

Driver 60 teeth, Driven 50 teeth

C

Driver 30 teeth, Driven 70 teeth

D

Driver 50 teeth, Driven 100 teeth

Question 2 1 Marks

Which type of trapezoidal thread is used in places there motion is to be transmitted between shafts at right angle?

A

Acme thread

B

Buttress thread

C

Saw-tooth thread

D

Worm thread

Question 3 1 Marks

Calculate the change gear to cut 8 mm pitch on a work
having a lead screw of 4 mm pitch gear 20 to 120 teeth
by 5 teeth range

A

Driver 40 teeth Driven 20 teeth

B

Driver 50 teeth Driven 60 teeth

C

Driver 80 teeth Driven 25 teeth

D

Driver 60 teeth Driven 35 teeth

Question 4 1 Marks

Which method of multi-start thread cutting is depends upon the graduations marked on the dial and the number of teeth in worm wheel?

A

Thread chasing dial method

B

Method by moving the top slide

C

Method using slotted face plate

D

Dividing the first drive method

Question 5 1 Marks

What is the purpose of idler gear in simple gear train?

A

Reduce gear ratio

B

Transmit power between driver and driven gears

C

Reduce spindle speed

D

Increase spindle speed

Question 6 1 Marks

What is the term of thread the advancement of
mating part in one complete rotation?

A

Pitch

B

Depth

C

Helix angle

D

Lead

Question 7 1 Marks

What is the ratio between the pitch diameter and number of teeth of gear?

A

Tooth thickness

B

Module

C

Dedendum

D

Addendum

Question 8 1 Marks

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

A

4.75 mm

B

5.75 mm

C

6.75 mm

D

7.75 mm

Question 9 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 10 1 Marks

Which of the following used buttress thread?

A

Screw jack

B

Lead screw of lathe

C

Carpentry vice

D

General purpose nut and bolt

Question 11 1 Marks

What is the formula to calculate the core dia of the square thread?

A

Major dia - 2 x depth

B

Major dia - minor dia

C

Major dia - Pitch dia

D

Major dia - Depth of thread

Question 12 1 Marks

What is the depth of 0.5 inch BSW 13TPI single start thread?

A

0.025"

B

0.038"

C

0.049"

D

0.082"

Question 13 1 Marks

What is the lead of M 24 x 3.5 triple start thread?

A

3.5 mm

B

8.5 mm

C

10.5 mm

D

12.8 mm

Question 14 1 Marks

What is the nose cutter width of the square threads tool?

A

0.5 x Pitch

B

equal to pitch

C

Pitch / 0.5

D

2 x Pitch

Question 15 1 Marks

What is the purpose of change gear train in centre lathe?

A

Connecting spindle gear to fixed stud gear

B

Connecting fixed stud gear to quick change gear box

C

Connecting quick change gear box to lead screw

D

Connecting lead screw to changing dial

Question 16 1 Marks

What is the included angle of acme thread?

A

55 Degree

B

45 Degree

C

30 Degree

D

29 Degree

Question 17 1 Marks

What will be the effect in helix angle if lead
changes for a give diameter work?

A

Lead decreases helix angle increases

B

Lead decreases helix angle decreases

C

Helix angle have no change when lead decreases

D

Helix angle have no change when lead increases

Question 18 1 Marks

Calculate the change gear to cut 6 mm pitch on a work
having a lead screw of 5 mm pitch. Gears available
from 20 to 120 teeth by 5 teeth range.

A

Driver 60 driven 50

B

Driver 40 driven 20

C

Driver 85 teeth driven 60 teeth

D

Driver 100 teeth driven 25 teeth

Question 19 1 Marks

What is the advantage of using idler gear in simple
gear train?

A

Affect gear ratio

B

Does not affect gear ratio

C

Change the speed

D

Easy to engage

Question 20 1 Marks

What type of thread is used in screw jack machine?

A

Acme thread

B

Square thread

C

Buttress thread

D

V-thread

Question 21 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 22 1 Marks

What is the relationship between pitch and lead of a single start thread?

A

Lead is twice the pitch

B

Lead is half the pitch

C

Lead is equal to pitch

D

Lead is 1/4 pitch

Question 23 1 Marks

How much angle is to be added for lead angle of a square thread as clearance to the helix angle?

A

1 Degree 55 Minutes

B

1 Degree 50 Minutes

C

1 Degree 45 Minutes

D

1 Degree 30 Minutes

Question 24 1 Marks

What is the name of last member in a simple gear
train?

A

Driver

B

Idler

C

Driven

D

Reversing gear

Question 25 1 Marks

What is the term the distance from a point on thread to the corresponding point on next thread?

A

Depth

B

Effective diameter

C

Pitch

D

Minor diameter

Question 26 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 27 1 Marks

What will be the effect in helix angle if diameter
changes for a given lead?

A

Diameters decreases helix angle increases

B

Diameters decreases helix angle decreases

C

No change in helix angle if diameter increases

D

No change in helix angle diameter decreases

Question 28 1 Marks

What is the name of first member in a simple gear
train?

A

Driven

B

Driver

C

Idler

D

Reverible gear

Question 29 1 Marks

Calculate pitch diameter of f 24 x 3 mm square thread?

A

21 mm

B

21.5 mm

C

22.5 mm

D

24 mm

Question 30 1 Marks

Which parameter will decide the driver and driven gear
ratio to cut thread on lathe?

A

Major dia of work

B

Pitch

C

Root dia of work

D

Angle of thread

Question 31 1 Marks

What does BIS stands for?

A

Bureau of International Standard

B

Bureau of Indian Standard

C

Bureau of International Society

D

Bereau of Indian Society

Question 32 1 Marks

Which thread has only one helical formation?

A

Single start

B

Double start

C

Triple start

D

Quadrapple

Question 33 1 Marks

What is the gear ratio if the lathe constant value is
one?

A

One

B

Two

C

Three

D

Six

Question 34 1 Marks

What is the lead of M 10 x 1.5 double start thread?

A

2 mm

B

3 mm

C

3.5 mm

D

4 mm

Question 35 1 Marks

Where multistart threads are used?

A

For easy alignment

B

For quick transmission

C

For easy engagement

D

For general fastening

Question 36 1 Marks

Which part of a lathe is used to catch thread
quickly?

A

Tool post

B

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

A

1.25 mm

B

1.5 mm

C

2.25 mm

D

3.00 mm

Question 38 1 Marks

What is the meaning of M24 in M 24 x 3 single start thread?

A

Core dia of thread

B

Major dia of thread

C

Effective dia of thread

D

Depth of thread

Question 39 1 Marks

How many numbers of gears having in a simple gear train?

A

2

B

3

C

4

D

5

Question 40 1 Marks

Which formula to be 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 41 1 Marks

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

A

Pitch/2

B

Pitch/3

C

Pitch/4

D

Pitch/8

Question 42 1 Marks

How many number of teeth gear is used to as translating gear to cut metric thread on British lathe?

A

100

B

127

C

140

D

135

Question 43 1 Marks

Which type of thread is used in lathe head screw?

A

Acme thread

B

Buttress thread

C

Knuckle thread

D

Square thread

Question 44 1 Marks

Which type of thread have higher mechanical advantage?

A

V- thread

B

Acme thread

C

Square thread

D

Buttress thread

Question 45 1 Marks

What does Sq 60 x 9 IS 4694-1968 means?

A

Square Thread 60 mm dia, 9 mm pitch

B

Buttress thread 60 mm dia x 9 mm pitch

C

Acme thread 60 mm dia x 9 mm pitch

D

Worm thread 60 mm dia x 9 mm pitch

Question 46 1 Marks

What is the relation between pitch and lead in multistart thread?

A

Lead = No. start x pitch

B

Lead = Pitch

C

Lead = 1/2 pitch

D

Lead = 1/3 x pitch

Question 47 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 48 1 Marks

Which one is the angle of buttress thread?

A

30 Degree

B

45 Degree

C

55 Degree

D

60 Degree

Question 49 1 Marks

Find the lead of a 2 start thread having pitch 1.5
mm?

A

1.50 mm

B

3.00 mm

C

4.50 mm

D

6.00 mm

Question 50 1 Marks

Calculate pitch diameter of M16 x 2 mm square thread?

A

14 mm

B

15 mm

C

15.5 mm

D

16 mm

Calculate change gears to cut a three start thread having a pitch of 1.5 mm; the lead screw has a pitch of 6 mm.

Which type of trapezoidal thread is used in places there motion is to be transmitted between shafts at right angle?

Calculate the change gear to cut 8 mm pitch on a work having a lead screw of 4 mm pitch gear 20 to 120 teeth by 5 teeth range

Which method of multi-start thread cutting is depends upon the graduations marked on the dial and the number of teeth in worm wheel?

What is the purpose of idler gear in simple gear train?

What is the term of thread the advancement of mating part in one complete rotation?

What is the ratio between the pitch diameter and number of teeth of gear?

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

Calculate the flat width of 10 mm pitch buttress thread?

Which of the following used buttress thread?

What is the formula to calculate the core dia of the square thread?

What is the depth of 0.5 inch BSW 13TPI single start thread?

What is the lead of M 24 x 3.5 triple start thread?

What is the nose cutter width of the square threads tool?

What is the purpose of change gear train in centre lathe?

What is the included angle of acme thread?

What will be the effect in helix angle if lead changes for a give diameter work?

Calculate the change gear to cut 6 mm pitch on a work having a lead screw of 5 mm pitch. Gears available from 20 to 120 teeth by 5 teeth range.

What is the advantage of using idler gear in simple gear train?

What type of thread is used in screw jack machine?

What is the shape of buttress thread flank?

What is the relationship between pitch and lead of a single start thread?

How much angle is to be added for lead angle of a square thread as clearance to the helix angle?

What is the name of last member in a simple gear train?

What is the term the distance from a point on thread to the corresponding point on next thread?

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

What will be the effect in helix angle if diameter changes for a given lead?

What is the name of first member in a simple gear train?

Calculate pitch diameter of f 24 x 3 mm square thread?

Which parameter will decide the driver and driven gear ratio to cut thread on lathe?

What does BIS stands for?

Which thread has only one helical formation?

What is the gear ratio if the lathe constant value is one?

What is the lead of M 10 x 1.5 double start thread?

Where multistart threads are used?

Which part of a lathe is used to catch thread quickly?

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

What is the meaning of M24 in M 24 x 3 single start thread?

How many numbers of gears having in a simple gear train?

Which formula to be used to find depth of buttress thread?

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

How many number of teeth gear is used to as translating gear to cut metric thread on British lathe?

Which type of thread is used in lathe head screw?

Which type of thread have higher mechanical advantage?

What does Sq 60 x 9 IS 4694-1968 means?

What is the relation between pitch and lead in multistart thread?

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

Which one is the angle of buttress thread?

Find the lead of a 2 start thread having pitch 1.5 mm?

Calculate pitch diameter of M16 x 2 mm square thread?

Calculate the change gear to cut 8 mm pitch on a work
having a lead screw of 4 mm pitch gear 20 to 120 teeth
by 5 teeth range

What is the term of thread the advancement of
mating part in one complete rotation?

Calculate the flat width of 10 mm pitch buttress
thread?

What will be the effect in helix angle if lead
changes for a give diameter work?

Calculate the change gear to cut 6 mm pitch on a work
having a lead screw of 5 mm pitch. Gears available
from 20 to 120 teeth by 5 teeth range.

What is the advantage of using idler gear in simple
gear train?

What is the name of last member in a simple gear
train?

What will be the effect in helix angle if diameter
changes for a given lead?

What is the name of first member in a simple gear
train?

Which parameter will decide the driver and driven gear
ratio to cut thread on lathe?

What is the gear ratio if the lathe constant value is
one?

Which part of a lathe is used to catch thread
quickly?

Find the lead of a 2 start thread having pitch 1.5
mm?