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MCQ - TNPSC JTO

JTO - 436 - Fitter

436 - Unit VIII Metals Metal Non Metal

113)   

Mild steel is also known as ______.

A.
B.
C.
D.
114)   

The tensile strength of steel increases with increase in ______.

A.
B.
C.
D.
115)   

Which ferrous metal is most suitable for making ornamental gates, chains and railings?

A.
B.
C.
D.
116)   

The main reducing agent in a blast furnace is ______.

A.
B.
C.
D.
117)   

The slag formed in a blast furnace mainly consists of ______.

A.
B.
C.
D.
118)   

Cupola furnace is generally used for the production of ______.

A.
B.
C.
D.
119)   

Which of the following is the hardest form of cast iron?

A.
B.
C.
D.
120)   

The most widely used form of cast iron for machine beds is ______.

A.
B.
C.
D.
121)   

Which type of cast iron is obtained by annealing white cast iron?

A.
B.
C.
D.
122)   

Wrought iron contains slag inclusions in the form of ______.

A.
B.
C.
D.
123)   

The presence of slag fibres in wrought iron improves its ______.

A.
B.
C.
D.
124)   

Which one of the following ferrous materials is most corrosion-resistant?

A.
B.
C.
D.
125)   

Steel is produced from pig iron by reducing the percentage of ______.

A.
B.
C.
D.
126)   

Which of the following processes is not used in steel making?

A.
B.
C.
D.
127)   

The Bessemer converter is lined with silica when the pig iron contains ______.

A.
B.
C.
D.
128)   

The Siemens-Martin process is another name for ______.

A.
B.
C.
D.