Quiz Questions - ITI Quiz - 05-Feb-2026 08:50 AM

Question 1 1 Marks

Which defect can be controlled by keeping a magnetic bridge on the top of the groove joint?

A

Arc blow

B

Distortion

C

Uneven bead

D

Slag inclusion

Question 2 1 Marks

Which arc length produces popping sound?

A

Long arc length

B

Short arc length

C

Normal arc length

D

Too long arc length

Question 3 1 Marks

What should be the angle of electrode in horizontal position welding?

A

45 Degree to 55 Degree

B

55 Degree to 65 Degree

C

70 Degree to 80 Degree

D

80 Degree to 90 Degree

Question 4 1 Marks

Which polarity used in welding cast iron?

A

Rectifier set

B

AC Transformer

C

Reverse polarity

D

Straight polarity

Question 5 1 Marks

Which type polarity used in sheet metal welding?

A

Rectifier set

B

AC Transformer

C

Reverse polarity

D

Straight polarity

Question 6 1 Marks

What should be the angle for a double bevel butt joint?

A

45 Degree

B

35 Degree

C

25 Degree

D

20 Degree

Question 7 1 Marks

What is the term for the depth of fusion, from the surface of the weld metal plate?

A

Leg length

B

Fusion zone

C

Penetration

D

Heat affected zone

Question 8 1 Marks

Which defect will occur, when the equipment is changed for AC to DC supply in arc welding?

A

Arc blow

B

Over lap

C

Weld crack

D

Distortion

Question 9 1 Marks

What arc length should be used to reduce the spatter?

A

Long arc length

B

Short arc length

C

Normal arc length

D

Too long arc length

Question 10 1 Marks

What is defined as vertical position of groove welding?

A

1G

B

2G

C

3G

D

6G

Question 11 1 Marks

Which type of electrode produces short arc length?

A

Heavy coated electrodes

B

Light coated electrodes

C

Medium coated electrodes

D

Super heavy coated electrodes

Question 12 1 Marks

Which one of the following do not assist fire?

A

Fuel

B

Oxygen

C

Ignition

D

Nitrogen

Question 13 1 Marks

What are the two types of MS pipes?

A

Forged pipe / Rolled pipe

B

Strip rolled / moulded type

C

Bent sheet pipe / Hot forged

D

Seamless pipe / Resistance welded pipe

Question 14 1 Marks

Which of the accessories should be worn during overhead welding?

A

Helmet

B

Sun glass

C

Hand screen

D

Welding goggles

Question 15 1 Marks

Which one of the following is used to convert AC to DC supply in a welding machine?

A

Rectifier set

B

Motor generator set

C

Engine generator set

D

Welding transformer

Question 16 1 Marks

Which type of arc produces humming sound?

A

Long arc length

B

Short arc length

C

Normal arc length

D

Too long arc length

Question 17 1 Marks

Which among the joints are covered under fillet group?

A

T joint, Lap joint

B

T joint, Corner joint

C

Corner joint, Edge joint

D

T joint, Lap joint, Corner joint, Edge joint

Question 18 1 Marks

Which types of arc length used in thin sheet metals?

A

Long arc length

B

Short arc length

C

Medium arc length

D

Deep short arc length

Question 19 1 Marks

Which position is advantageous for easy welding?

A

Flat

B

Vertical

C

Over head

D

Horizontal

Question 20 1 Marks

What is the indication of wrong polarity in DC welding?

A

Electrode become red hot

B

Electrode will freeze with the job

C

Excess spatters and poor penetration

D

It will produce edge of plates melted off

Question 21 1 Marks

Which type of polarity used in bare wire electrode

A

Straight polarity

B

Reverse polarity

C

AC Transformer

D

Rectifier set

Question 22 1 Marks

Which is used for arc welding if there is no electric power supply?

A

Rectifier set

B

Transformer set

C

Motor generator set

D

Engine generator set

Question 23 1 Marks

What is polarity?

A

Circuit of current

B

Direction of current

C

Open circuit of current

D

Opp direction of current

Question 24 1 Marks

What is the name of joint if two members welded in the same plane?

A

Lap joint

B

Tee joint

C

Butt joint

D

Edge joint

Question 25 1 Marks

Which of the following gas is used in TIG welding?

A

Helium

B

Oxygen

C

Hydrogen

D

Carbon dioxide

Question 26 1 Marks

What is the purpose of wrapping the weld cable around the job in welding?

A

To control arc blow

B

To control arc speed

C

To control arc length

D

To control distortion

Question 27 1 Marks

What is the angle of electrode while welding in vertical position?

A

60 Degree to 70 Degree

B

70 Degree to 80 Degree

C

80 Degree to 90 Degree

D

90 Degree to 100 Degree

Question 28 1 Marks

What happens if the root gap is lesser than one sixth of plate thickness?

A

More chances of distortion

B

More penetration will result

C

Likely defects like blowhole, porosity

D

Base metal not fused till the bottom of joint

Question 29 1 Marks

How much current should be set, to weld a 10 mm thick plates, by arc welding?

A

70 Amps

B

80 Amps

C

90 Amps

D

110 Amps

Question 30 1 Marks

Which type of polarity is used in aluminium welding?

A

Rectifier set

B

AC Transformer

C

Reverse polarity

D

Straight polarity

Question 31 1 Marks

Which type of transformer used in arc welding?

A

Step up

B

Step down

C

One - to - one

D

Capable of increasing supply voltage

Question 32 1 Marks

What should be the angle of electrode in the flat position welding?

A

50 Degree to 70 Degree

B

60 Degree to 70 Degree

C

70 Degree to 80 Degree

D

80 Degree to 90 Degree

Question 33 1 Marks

What is the purpose of fixing run on, run off plates in arc welding?

A

Control arc blow

B

Control porosity

C

Control distortion

D

Control over heating

Question 34 1 Marks

How do you name the depression formed at the end of the weld?

A

Crack

B

Crater

C

Pin hole

D

Blow hole

Question 35 1 Marks

Which polarity is used in welding with heavy and super heavy coated electrodes?

A

AC Transformer

B

Reverse polarity

C

Straight polarity

D

AC Motor generator

Question 36 1 Marks

Which type of arc length produces deep penetration weld?

A

Long arc length

B

Short arc length

C

Medium arc length

D

Too long arc length

Question 37 1 Marks

What is the metal used to make earth clamp in a welding machine?

A

Iron

B

Brass

C

Aluminium

D

Copper alloy

Question 38 1 Marks

Which type of polarity is used in welding non ferrous metals?

A

AC Transformer

B

Reverse polarity

C

Straight polarity

D

DC Motor generator

Question 39 1 Marks

What is the conversion function of a rectifier?

A

AC to AC

B

DC to DC

C

AC to DC

D

DC to AC

Question 40 1 Marks

What is the size of nozzle suitable for welding 50mm dia pipe, with 3.15mm wall thickness?

A

5

B

7

C

10

D

13

Question 41 1 Marks

Which arc length produces correct fusion?

A

Long arc length

B

Short arc length

C

Normal arc length

D

Too long arc length

Question 42 1 Marks

What is the effect due to long arc in welding shown in drawing?

A

Normal penetration

B

More penetration

C

Less penetration

D

Less weld deposit

Question 43 1 Marks

Which type of metal is used in a welding cable?

A

Iron

B

Brass

C

Bronze

D

Copper