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MCQ - TNPSC JTO

JTO - 436 - Fitter

436 - Unit VIII Metals Metal Non Metal

129)   

Which steel has the highest carbon content?

A.
B.
C.
D.
130)   

Alloy steels are obtained by adding elements like ______.

A.
B.
C.
D.
131)   

Non-ferrous metals are those which do not contain appreciable amount of ______.

A.
B.
C.
D.
132)   

The lightest engineering metal commonly used in industries is ______.

A.
B.
C.
D.
133)   

The specific gravity of aluminium is about ______.

A.
B.
C.
D.
134)   

Aluminium is widely used in aircraft industries mainly because it is ______.

A.
B.
C.
D.
135)   

Which of the following is not an alloy of aluminium?

A.
B.
C.
D.
136)   

Lead is mainly used for ______.

A.
B.
C.
D.
137)   

The melting point of lead is about ______ °C.

A.
B.
C.
D.
138)   

Which non-ferrous metal is most suitable for making solders?

A.
B.
C.
D.
139)   

Tin is used for coating steel sheets mainly to ______.

A.
B.
C.
D.
140)   

Bronze is an alloy of ______.

A.
B.
C.
D.
141)   

The electrical conductivity of copper is about ______% of pure silver.

A.
B.
C.
D.
142)   

The main ore of copper is ______.

A.
B.
C.
D.
143)   

Which of the following is a copper alloy?

A.
B.
C.
D.
144)   

Brass is an alloy of ______.

A.
B.
C.
D.