MCQ - TNPSC JTO
JTO - 440 - Welder
440 - Unit III Set the Oxygen Acetylene Gas Cutting Plant
19)
For flame cutting stainless steel, which process is preferred?
A.
B.
C.
D.
Answer: B
20)
Acetylene is chemically known as:
A.
B.
C.
D.
21)
In gas cutting, oxygen is used to:
A.
B.
C.
D.
22)
Maximum safe working pressure for acetylene is:
A.
B.
C.
D.
23)
The fuel gas with the highest heat content per unit volume is:
A.
B.
C.
D.
24)
The main advantage of oxy-propane over oxy-acetylene for cutting is:
A.
B.
C.
D.
25)
In welding, flame temperature mainly depends on:
A.
B.
C.
D.
26)
Dissolved acetylene cylinders contain:
A.
B.
C.
D.
27)
The common fuel gas used for jewellery soldering is:
A.
B.
C.
D.
28)
Which gas mixture is used for very high-speed cutting of steel?
A.
B.
C.
D.
29)
For welding copper, the preferred gas flame is:
A.
B.
C.
D.
30)
The hottest region of an oxy-acetylene flame is:
A.
B.
C.
D.
31)
A neutral flame has an oxygen-to-acetylene ratio of about:
A.
B.
C.
D.
32)
The neutral flame is used for welding:
A.
B.
C.
D.