Which one of the following metals is used to galvanise iron ?

The metal used to galvanise iron to protect it from rusting is

A

Zinc

B

Chromium

C

Lead

D

Antimony

Which of the following metals displaces Iron from Iron Chloride?

A

Lead

B

Zinc

C

Tin

D

Silver

An important geometrical quantity in the cutting of metals which can be used as a criterion for machinability of metals is

A

Cutting speed

B

Feed rate

C

Shear angle

D

Tool geometry

What type of fusion welding process is used for welding sheet metals of all engineering metals (except Cu, Ag) in automobile and air craft industries, pipe and tubing production?

A

Thermit welding

B

Electroslag welding

C

Resistance welding

D

Submerged arc Welding

There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant?

A

Mercury

B

Arsenic

C

Aluminium

D

Lead

The forms in which various metals and non metals occur in nature are called minerals. Which of the following is not a metallic ferrous mineral?

A

Cassiterite

B

Sphalerite

C

Chalcopyrite

D

Calcite

Which of the following metals forms an amalgam with other metals?

A

Tin

B

Mercury

C

Lead

D

Zinc

Which of the following metals form an amalgam with other metals ?

A

Lead

B

Tin

C

Zinc

D

Mercury

A metalloid possesses the characteristics of both the metals and non-metals. Which of the following is not a metalloid?

A

Arsenic

B

Antimony

C

Lead

D

None of these

Ceramic nuclear metals compared to solid nuclear metals have

A

higher melting points

B

low strength at high temperature

C

more chances of radiation damage

D

poorer corrosion resistance

Which one of the following metals is used to galvanise iron ?

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