Quiz Questions - ITI Quiz - 26-May-2026 12:03 PM

Question 1 1 Marks

What is the root run?

A

Backing run

B

The first run is root run

C

The third run is root run

D

The second run is root run

Question 2 1 Marks

What benefit we get out of a carburising flame?

A

Suitable for brass, copper welding

B

Suitable for stellite, flame cleaning

C

Suitable for mildsteel, stainless steel

D

Suitable for pure aluminium, cast iron & brass welding

Question 3 1 Marks

What is the pre-heating temperature of cast iron?

A

200 to 310 Degree Centigrade

B

250 to 350 Degree Centigrade

C

300 to 350 Degree Centigrade

D

350 to 450 Degree Centigrade

Question 4 1 Marks

Which type of stainless steel is weldable?

A

Nickel type

B

Ferrite type

C

Stabilized type

D

Chromium type

Question 5 1 Marks

What is the angle of pipe axis with the base for making an elbow joint?

A

30 Degree

B

45 Degree

C

75 Degree

D

90 Degree

Question 6 1 Marks

What is the composition of acetylene gas?

A

C - 72.3% H - 27.7%

B

C - 82.3% H - 17.7%

C

C - 90% H - 10%

D

C - 92.3% H - 7.7%

Question 7 1 Marks

What type of preheating is done only at the portions to be welded?

A

Full preheating

B

Local preheating

C

Direct preheating

D

Indirect preheating

Question 8 1 Marks

Why deposited bead is not in uniform size?

A

Incorrect flame setting

B

Wrong angle of blow pipe

C

Wrong angle of filler rod

D

Variation in speed of travel and angle

Question 9 1 Marks

What is the defect due to non cleaning the surfaces before welding?

A

Over lap

B

Lack of fusion

C

Surface porosity

D

Small cracks in bead

Question 10 1 Marks

What is the process of heating steel to specific temperature and cooling suddenly?

A

Annealing

B

Hardening

C

Tempering

D

Quenching

Question 11 1 Marks

How is the scale and oxide removed from stainless steel weld?

A

Peening

B

Cooling in oil

C

Cooling in sand

D

Heating up to 9500 to 11000C and quenched in water

Question 12 1 Marks

How the repairs of cracks in cast iron component carried out?

A

By using clamps during welding process

B

Similar to arc welding mild steel plate

C

Local preheating, leftward welding technique flame heating each layer

D

Cracks repaired using appropriate electrode

Question 13 1 Marks

Which metal in welding process is subjected to ?Weld decay? defect?

A

Brass

B

Copper

C

Mild steel

D

Stainless steel

Question 14 1 Marks

What should be the bevel angle for edge preparation of 6mm thick pipe welding?

A

30 Degree - 35 Degree

B

40 Degree - 45 Degree

C

60 Degree - 65 Degree

D

70 Degree - 75 Degree

Question 15 1 Marks

What is the purpose of cleaning of sheets before doing gas welding?

A

To avoid over lap

B

To avoid porosity

C

To avoid under cut

D

To Control distortion

Question 16 1 Marks

What is the name of the steel material which are not weldable?

A

High carbon steel

B

Medium carbon steel

C

Austenitic stainless steel

D

Ferrite and martensitic stainless steel

Question 17 1 Marks

Which gauging nozzle is selected for rivet head cutting?

A

Bent nozzle with three pre-heating holes

B

Straight nozzle with six pre-heating holes

C

Bent nozzle with six holes

D

Flute cutting straight with six holes

Question 18 1 Marks

Which size of filler rod should be used to weld 2.5mm thickplates,using nozzle 5 by leftward technique?

A

1.60 mm

B

2.00 mm

C

2.50 mm

D

3.15 mm

Question 19 1 Marks

What does the letter ?X? indicate in the electrode classification of EB5426 H1 J X?

A

Covered electrode

B

Increase metal recovery

C

Hydrogen controlled electrode

D

Radio graphic quality electrode

Question 20 1 Marks

Which of the following metals have high thermal conductivity?

A

Brass

B

Bronze

C

Copper

D

Aluminium

Question 21 1 Marks

Which type of cast iron is soft?

A

Grey cast iron

B

White cast iron

C

Nodular cast iron

D

Malleable cast iron

Question 22 1 Marks

What are the four clock positions, in pipe welding?

A

6, 12, 3, 9'o clock points

B

11, 5, 8, 2'o clock points

C

10,4, 1, 7'o clock points

D

9,3, 12, 6'o clock points

Question 23 1 Marks

What is the use of intermediate tacks on a weld setting of plates?

A

To reduce the welding run

B

To control defects in weld joint

C

To speed up the welding joint

D

Align and to maintain the position of joint

Question 24 1 Marks

Which welding process enables to weld dissimilar metals?

A

Brazing

B

Seam welding

C

Spot welding

D

Fusion welding

Question 25 1 Marks

Which type of arc length produces poor penetration?

A

Long arc length

B

Short arc length

C

Normal arc length

D

Too long arc length

Question 26 1 Marks

What will happen if the current is low while arc welding?

A

Formed over lap

B

Spatterns are more

C

Electrode fused speedly

D

Base metal edges not melt properly

Question 27 1 Marks

How many segments are to be selected for welding 50 mm j pipe?

A

3 segments

B

4 segments

C

6 segments

D

8 segments

Question 28 1 Marks

Which accessory is used to protect the eyes during gas welding?

A

Helmet

B

Hand screen

C

Colour goggles

D

Grinding goggles

Question 29 1 Marks

What flux is used in welding brass?

A

Anti - borax

B

Borax paste

C

Cryolite and berium chloride

D

Zinc chloride and potassium dichromate

Question 30 1 Marks

What type of gas flame is used to weld 2mm mild steel by brazing method?

A

Neutral flame

B

Carburising flame

C

Oxidising flame

D

Oxy-hydrogen flame

Question 31 1 Marks

What size of electrode is used to weld 5 mm wall thickness pipe?

A

Dia 2.5 mm

B

Dia 3.15 mm

C

Dia 4.00 mm

D

Dia 5.00 mm

Question 32 1 Marks

What is the process of hot weld joint rapidly hammered to relieve internal stresses?

A

Peening

B

Annealing

C

Heat treatment

D

Straightening

Question 33 1 Marks

What size of CCMS filler rod is used for finish run of Dia 50mm pipe root welded using Dia 1.65 filler?

A

Dia 1.6 mm

B

Dia 3.0 mm

C

Dia 3.5 mm

D

Dia 4.0 mm

Question 34 1 Marks

Which type welding uses a non - ferrous filler with melting point above 450 Degree, than base metal?

A

Brazing

B

Soldering

C

Arc welding

D

Gas welding

Question 35 1 Marks

What is the name of small metal particles which are thrown out of the arc during welding?

A

Slag

B

Spatters

C

Stub end

D

Weld metal

Question 36 1 Marks

Which process causes the increase in the strength of part after fabrication?

A

Hardening

B

Tempering

C

Quenching

D

Normalising

Question 37 1 Marks

Which of the following produces unstable arc?

A

Long arc length

B

Short arc length

C

Normal arc length

D

Too long arc length

Question 38 1 Marks

Which welding the slag inclusion defect will occur?

A

Manual metal arc welding

B

Tungsten invert gas welding

C

Malattic invert gas welding

D

Oxy - acetylene gas welding

Question 39 1 Marks

What is the rule for deciding the length of intermediate tacks?

A

3 to 4 times plate thickness

B

2 to 3 times plate thickness

C

5 times the plate thickness

D

50mm irrespective of plate thickness

Question 40 1 Marks

What is the bevel angle for pipe welding butt joint if wall thickness is more than 5mm?

A

60 Degree

B

75 Degree

C

80 Degree

D

90 Degree

Question 41 1 Marks

What procedure is followed in welding pipe in 5 G position?

A

Rotate pipe and weld vertically

B

Pipe not rotated weld verticality

C

Pipe not rotated and pipe axis 450

D

Pipe welded 12'o clock to 6'o clock downhill

Question 42 1 Marks

What does the third digit of AWS codification in EB 5426HJX represent?

A

Type of current

B

Type of covering

C

Type of tensile strength

D

Type of welding position

Question 43 1 Marks

What is the base for selecting the nozzle size for gas welding of a pipe?

A

Groove angle

B

Welding position

C

Diameter of pipe

D

Pipe wall thickness

Question 44 1 Marks

Which of the following aluminium alloys consists of 1% iron & silicon?

A

Duralumin

B

Wrought alloy

C

Aluminium cast alloy

D

Commercially pure aluminium

Question 45 1 Marks

What are the standard electrode lengths available?

A

250 mm and 350 mm

B

350 mm and 450 mm

C

400 mm and 500 mm

D

500mm and 600mm

Question 46 1 Marks

What is the 6?o clock position in CW pipe welding refers to in 5G position?

A

Down hand position

B

Horizontal position

C

Over head position

D

Vertical up hill position

Question 47 1 Marks

Which size of CCMS filler rod is to be used for welding plate of 8mm thick with ?V? edge preparation?

A

Dia 3.15 mm

B

Dia 4.0 mm

C

Dia 5.0 mm

D

Dia 6.3 mm

Question 48 1 Marks

What is the main reason, that aluminium is difficult to weld?

A

Less weight

B

Oxide formation

C

High thermal conductivity

D

Better strength weight ratio

Question 49 1 Marks

Which one of the following methods of welding is not a method used to control distortion?

A

Skip welding

B

Back step welding

C

Right hand welding

D

Intermittent welding

Question 50 1 Marks

What is the effect of expansion and contraction due to heat in welding?

A

Peening

B

Arc blow

C

Distortion

D

Metal force