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MCQ - TNPSC JTO

JTO - 436 - Fitter

436 - Unit IV Welding

145)   

Re-drying of electrodes is necessary to:

A.
B.
C.
D.
146)   

For thin sheet welding, preferred electrode size is:

A.
B.
C.
D.
147)   

E6013 electrode is mainly used for:

A.
B.
C.
D.
148)   

Electrode classification “E6013” – here “60” indicates:

A.
B.
C.
D.
149)   

Electrode classification “E6013” – the last two digits “13” indicate:

A.
B.
C.
D.
150)   

Before use, electrodes should be checked for:

A.
B.
C.
D.
151)   

Which fire extinguisher is most suitable for welding shop fires caused by flammable gases?

A.
B.
C.
D.
152)   

A backfire in oxy-acetylene torch means:

A.
B.
C.
D.
153)   

Which equipment prevents flame from travelling back into the cylinders during gas welding?

A.
B.
C.
D.
154)   

What is the color code of oxygen cylinder in India?

A.
B.
C.
D.
155)   

The oxygen pressure regulator is usually colored:

A.
B.
C.
D.
156)   

The acetylene pressure regulator is usually colored:

A.
B.
C.
D.
157)   

What is the maximum safe working pressure of acetylene gas in a cylinder?

A.
B.
C.
D.
158)   

Which cutting process uses pure oxygen jet to oxidize and remove metal?

A.
B.
C.
D.
159)   

What is the approximate flame temperature of oxy-acetylene flame?

A.
B.
C.
D.
160)   

Neutral flame in oxy-acetylene cutting is used because it:

A.
B.
C.
D.