Sparks Academy
SPARKS ACADEMY
Online Test Series
8190879379 Chennai

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

26)   

In OAW, the oxygen cylinder is painted:

A.
B.
C.
D.
Answer: A
27)   

In OAW, the acetylene cylinder is painted:

A.
B.
C.
D.
Answer: B
28)   

Acetylene gas should not be used at a pressure above:

A.
B.
C.
D.
Answer: B
29)   

What is the function of a flashback arrestor in OAW?

A.
B.
C.
D.
Answer: B
30)   

The correct sequence for shutting down OAW is:

A.
B.
C.
D.
Answer: B
31)   

Why should oil or grease never be applied to oxygen fittings?

A.
B.
C.
D.
Answer: B
32)   

Which wrench is used to open cylinder valves?

A.
B.
C.
D.
Answer: B
33)   

In OAW, purging the hoses before lighting is done to:

A.
B.
C.
D.
Answer: B
34)   

The neutral flame in OAW is obtained by:

A.
B.
C.
D.
Answer: B
35)   

What is the danger of a backfire in OAW?

A.
B.
C.
D.
Answer: B
36)   

In OAW, the oxygen regulator is color-coded:

A.
B.
C.
D.
Answer: A
37)   

What should be done if a gas leak is suspected in OAW?

A.
B.
C.
D.
Answer: B
38)   

Why should hoses be kept away from hot metal during OAW?

A.
B.
C.
D.
Answer: B
39)   

What type of flame is used for welding mild steel in OAW?

A.
B.
C.
D.
Answer: A
40)   

Which is NOT an arc welding accessory?

A.
B.
C.
D.
Answer: C
41)   

What is the function of the welding cable?

A.
B.
C.
D.
Answer: A
42)   

In OAW, the welding torch is used to:

A.
B.
C.
D.
Answer: A
43)   

Which tool is used to clean the tip of a gas welding torch?

A.
B.
C.
D.
Answer: B
44)   

In SMAW, a slag hammer is used fo

A.
B.
C.
D.
Answer: B
45)   

The device that reduces high cylinder pressure to working pressure in OAW is called:

A.
B.
C.
D.
Answer: A
46)   

In SMAW, the current setting depends mainly on:

A.
B.
C.
D.
Answer: A
47)   

Which accessory is essential for cleaning rust before welding?

A.
B.
C.
D.
Answer: A
48)   

Why is the pressure gauge important in OAW?

A.
B.
C.
D.
Answer: B
49)   

The filler rod in OAW is usually made of:

A.
B.
C.
D.
Answer: B
50)   

Which device connects the welding cable to the workpiece in SMAW?

A.
B.
C.
D.
Answer: B