MCQ - TNPSC JTO
JTO - 440 - Welder
440 - Unit VI Gas Cylinders and Regulators
49)
Oil or grease must not be applied to oxygen fittings because:
A.
B.
C.
D.
50)
Oxygen cylinder valves should be opened:
A.
B.
C.
D.
51)
The function of a regulator in gas welding is to:
A.
B.
C.
D.
52)
A single-stage regulator reduces pressure
A.
B.
C.
D.
53)
A double-stage regulator reduces pressure:
A.
B.
C.
D.
54)
Double-stage regulators give:
A.
B.
C.
D.
55)
Regulators are fitted between:
A.
B.
C.
D.
56)
The color of oxygen regulator is
A.
B.
C.
D.
57)
The color of acetylene regulator is:
A.
B.
C.
D.
58)
The gauge on the regulator that shows cylinder pressure is called:
A.
B.
C.
D.
59)
The gauge that shows pressure going to the torch is:
A.
B.
C.
D.
60)
The main advantage of a double-stage regulator is:
A.
B.
C.
D.
61)
Low-pressure acetylene welding system is also called:
A.
B.
C.
D.
62)
High-pressure acetylene system is called:
A.
B.
C.
D.
63)
In a low-pressure system, acetylene is supplied at:
A.
B.
C.
D.
64)
In a high-pressure system, acetylene is supplied at:
A.
B.
C.
D.