Question:

The Curic point for Rochelle salt is about

A.

1000?C

B.

500?C

C.

240?C

D.

Absolute zero

Answer» c. 240?C

Question:

The statement that, at equilibrium, the number of phases plus the degrees of freedom must equal the number of components plus two is known as

A.

Gibbs phase rule

B.

Lever rule

C.

Fick’s rule

D.

Heisenberg rule

Answer» a. Gibbs phase rule

Question:

Which of the following timber is used for sports goods?

A.

Mulberry

B.

Mahogany

C.

Sal

D.

Deodar

Answer» a. Mulberry

Question:

Steel balls for ball bearings are hardened to

A.

100 VPN

B.

400-700 VPN

C.

700-800 VPN

D.

150-200 VPN

Answer» c. 700-800 VPN

Question:

In electro-forming the metal is supplied to the mould from

A.

Solution

B.

By liquids

C.

Electrolytic solution in which bar of pure metal acts as an anode for the plating current

D.

Separately by coating with a point

Answer» c. Electrolytic solution in which bar of pure metal acts as an anode for the plating current

Question:

Spot the process which is different from others?

A.

Galvanizing

B.

Chapmanizing

C.

Carburizing

D.

Cyaniding

Answer» a. Galvanizing

Question:

Which of the following is a fuel used in fast reactors?

A.

Chromium

B.

Plutonium

C.

Zirconium

D.

Heavy water

Answer» b. Plutonium

Question:

Muntz metal contains

A.

Copper-tin

B.

Copper-chromium

C.

Copper-nickel

D.

Copper-zinc

Answer» d. Copper-zinc

Question:

Dielectric strength of a material is

A.

Capacity to withstand high voltage

B.

Magnetic property

C.

Energy storage capacity

D.

Capacity to resist flow of current

Answer» a. Capacity to withstand high voltage

Question:

Coarse grained steels

A.

Do not have tendency to distort

B.

Are less tough

C.

Are very tough

D.

Are lighter

Answer» b. Are less tough