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MCQ - Mechanical TNPSC JTO
JTO - 436 - Fitter - 436 - Unit IV Welding

26)   

The current used in Shielded Metal Arc Welding (SMAW) is generally:

A.
B.
C.
D.
Answer: C
27)   

For welding thin metal sheets, the current setting should be:

A.
B.
C.
D.
Answer: C
28)   

The welding current is usually measured in:

A.
B.
C.
D.
Answer: C
29)   

The arc voltage in manual arc welding generally ranges from:

A.
B.
C.
D.
Answer: B
30)   

Which polarity is preferred for deep penetration in DC arc welding?

A.
B.
C.
D.
Answer: C
31)   

In DC straight polarity (DCSP), the electrode is connected to:

A.
B.
C.
D.
Answer: B
32)   

In arc welding, high current with low voltage may cause:

A.
B.
C.
D.
Answer: B
33)   

Welding of thick sections usually requires:

A.
B.
C.
D.
Answer: C
34)   

Arc blow in DC welding is caused due to:

A.
B.
C.
D.
Answer: B
35)   

In AC arc welding, arc blow is:

A.
B.
C.
D.
Answer: B
36)   

Oxy-acetylene cutting is a process that involves:

A.
B.
C.
D.
Answer: D
37)   

In oxy-acetylene cutting, the cutting action is performed by:

A.
B.
C.
D.
Answer: B
38)   

The main fuel gas used in oxy-fuel cutting is:

A.
B.
C.
D.
Answer: C
39)   

The oxygen cylinder used in cutting is painted in which color?

A.
B.
C.
D.
Answer: C
40)   

The standard color of the acetylene hose is:

A.
B.
C.
D.
Answer: C
41)   

Which of the following is a common external defect in arc welding?

A.
B.
C.
D.
Answer: C
42)   

The welding defect caused by incorrect electrode angle or high current is:

A.
B.
C.
D.
Answer: B
43)   

Which of the following is an internal defect in a weld?

A.
B.
C.
D.
Answer: A
44)   

Lack of fusion occurs when:

A.
B.
C.
D.
Answer: C
45)   

Crater crack usually forms at:

A.
B.
C.
D.
Answer: C
46)   

How many basic types of welding joints are there as per AWS (American Welding Society)?

A.
B.
C.
D.
Answer: B
47)   

Which of the following is not a basic type of welding joint?

A.
B.
C.
D.
Answer: D
48)   

In a butt joint, the plates are:

A.
B.
C.
D.
Answer: B
49)   

In lap joints, the plates are:

A.
B.
C.
D.
Answer: B
50)   

A T-joint is formed when:

A.
B.
C.
D.
Answer: B