MCQ - TNPSC JTO
JTO - 436 - Fitter
436 - Unit VIII Metals Metal Non Metal
49)
Galvanizing is a process of coating iron or steel with:
A.
B.
C.
D.
50)
In electroplating, the article to be plated is connected to the:
A.
B.
C.
D.
51)
The hardness of white cast iron is mainly due to:
A.
B.
C.
D.
52)
Which cast iron has spheroidal graphite structure for better strength?
A.
B.
C.
D.
53)
Cupola furnace is generally used for the production of:
A.
B.
C.
D.
54)
Malleable cast iron is obtained by heat-treating:
A.
B.
C.
D.
55)
Wrought iron is produced mainly by removing:
A.
B.
C.
D.
56)
Slag inclusions in wrought iron improve:
A.
B.
C.
D.
57)
Wrought iron is not used for:
A.
B.
C.
D.
58)
Stainless steel mainly contains:
A.
B.
C.
D.
59)
Tool steels are generally:
A.
B.
C.
D.
60)
Heat treatment of steel is carried out mainly to:
A.
B.
C.
D.
61)
The open-hearth process for steel production uses:
A.
B.
C.
D.
62)
Aluminium forms a protective coating of:
A.
B.
C.
D.
63)
Which of the following is not an aluminium alloy?
A.
B.
C.
D.
64)
Magnalium is an alloy of:
A.
B.
C.
D.