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201.

Steel recommended for induction hardening should have

A.	Fine grains	B.	Coarse grains
C.	Low alloy content	D.	Rough surface
E.	Low electrical and thermal conductivity

202.

The process for steel making being used at Rourkela steel plant is

A.	L-D process	B.	Duplex process
C.	Bessemmer process	D.	Open hearth process
E.	Electric process

203.

The process for steel making used at TISCO, Jamshedpur is

A.	L-D process	B.	Duplex process
C.	Electric process	D.	Bessemmer process
E.	Open hearth process

204.

Electric process for steel making is used in which of the following steel plant?

A.	Bhilai	B.	Bokaro
C.	Durgapur	D.	TISCO
E.	None of the above

205.

The hardness obtained by hardening process does not depend upon

A.	Carbon content	B.	Work size
C.	Atmospheric temperature	D.	Quenching rate

206.

Austenitic stainless steels contain chromium and nickel in amounts required to assure that even at room temperatures, the steels retain their crystalline structures, which are

A.	Face centred cubic	B.	Diamond cubic
C.	Hexagonal closed-packed	D.	Partly amorphous

207.

If the structure of a sample consists of pearlite, cementite and free carbon, the sample may be

A.	Cast iron	B.	Alloy steel
C.	Dead mild steel	D.	Eutectoid steel
E.	None of the above

208.

If the steel at room temperature is magnetic, the presence of which constituent can be ruled out?

A.	Ferrite	B.	Pearlite
C.	Austenite	D.	Cementite
E.	None of the above

209.

The allotropic form of iron not having body centred cubic lattice is

A.	Alpha iron	B.	Beta iron
C.	Gamma iron	D.	Delta iron
E.	All of the above

210.

The operation that usually follwos hardening is

A.	Annealing	B.	Normalising
C.	Tempering	D.	Cyaniding
E.	Carburising