MCQ - TNPSC JTO
JTO - 440 - Welder
440 - Unit I Introduction and Definition of Welding
17)
Which hazard is caused by touching the electrode while welding?
A.
B.
C.
D.
Answer: B
20)
Which factor can cause arc blow in SMAW?
A.
B.
C.
D.
21)
What PPE is specifically required for SMAW to protect from sparks?
A.
B.
C.
D.
22)
In SMAW, the electrode size is chosen based on:
A.
B.
C.
D.
23)
Which current type is generally used in SMAW?
A.
B.
C.
D.
24)
Which is NOT a safety measure in SMAW?
A.
B.
C.
D.
25)
Why is chipping hammer used in SMAW?
A.
B.
C.
D.
26)
In OAW, the oxygen cylinder is painted:
A.
B.
C.
D.
27)
In OAW, the acetylene cylinder is painted:
A.
B.
C.
D.
28)
Acetylene gas should not be used at a pressure above:
A.
B.
C.
D.
29)
What is the function of a flashback arrestor in OAW?
A.
B.
C.
D.
30)
The correct sequence for shutting down OAW is:
A.
B.
C.
D.
31)
Why should oil or grease never be applied to oxygen fittings?
A.
B.
C.
D.
32)
Which wrench is used to open cylinder valves?
A.
B.
C.
D.