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MCQ - Mechanical TNPSC JTO
JTO - 440 - Welder - 440 - Unit I Introduction and Definition of Welding

1)   

Which of the following is the main risk when performing arc welding without proper eye protection?

A.
B.
C.
D.
Answer: B
2)   

What is the primary purpose of a welding helmet?

A.
B.
C.
D.
Answer: B
3)   

Before starting any welding operation, the work area should be:

A.
B.
C.
D.
Answer: B
4)   

In welding safety, the abbreviation “PPE” stands for:

A.
B.
C.
D.
Answer: A
5)   

Which type of fire extinguisher is suitable for electrical welding fires?

A.
B.
C.
D.
Answer: B
6)   

Which part of the welder’s body is most at risk from infrared radiation during welding?

A.
B.
C.
D.
Answer: A
7)   

Which safety device prevents electric shock from welding machines?

A.
B.
C.
D.
Answer: A
8)   

Why is ventilation important during welding?

A.
B.
C.
D.
Answer: B
9)   

Which clothing is safest for welding?

A.
B.
C.
D.
Answer: B
10)   

What is the safe distance for flammable materials from welding work?

A.
B.
C.
D.
Answer: B
11)   

In SMAW, the electrode holder should be kept:

A.
B.
C.
D.
Answer: C
12)   

What should be checked before switching on a SMAW welding set?

A.
B.
C.
D.
Answer: C
13)   

Why must welding leads be free from cuts and damages?

A.
B.
C.
D.
Answer: B
14)   

In SMAW, the arc is produced between:

A.
B.
C.
D.
Answer: B
15)   

What is the function of the electrode coating in SMAW?

A.
B.
C.
D.
Answer: B
16)   

Why should SMAW cables be kept short and straight?

A.
B.
C.
D.
Answer: B
17)   

Which hazard is caused by touching the electrode while welding?

A.
B.
C.
D.
Answer: B
18)   

What should be done if the electrode holder is hot?

A.
B.
C.
D.
Answer: C
19)   

The return cable in SMAW is also called:

A.
B.
C.
D.
Answer: A
20)   

Which factor can cause arc blow in SMAW?

A.
B.
C.
D.
Answer: A
21)   

What PPE is specifically required for SMAW to protect from sparks?

A.
B.
C.
D.
Answer: A
22)   

In SMAW, the electrode size is chosen based on:

A.
B.
C.
D.
Answer: B
23)   

Which current type is generally used in SMAW?

A.
B.
C.
D.
Answer: C
24)   

Which is NOT a safety measure in SMAW?

A.
B.
C.
D.
Answer: A
25)   

Why is chipping hammer used in SMAW?

A.
B.
C.
D.
Answer: A