Materials and Construction MCQs

Question 1

Vycor, a widely used material for making 'thermal wells' in temperature measurement, is a

Accepted Answer

Glass

Answer

Cermet

Answer

Thermosetting plastic

Answer

Metallic alloy

Question 2

Electronic structure of a material is generally studied by

Accepted Answer

Spectroscopic techniques

Answer

Metallurgical microscope

Answer

Electron diffraction

Answer

X-ray

Question 3

__________ alloys have the highest specific strength of all the structural materials out of the following.

Accepted Answer

Titanium

Answer

Magnetic steel

Answer

Chromium

Answer

Magnesium

Question 4

Slow plastic deformation of metals under a constant stress is termed as __________ failure.

Accepted Answer

Creep

Answer

Fatigue

Answer

Endurance

Answer

None of these

Question 5

Which of the following is the hardest?

Accepted Answer

Austenite

Answer

Cementite

Answer

Pearlite

Answer

Ferrite

Question 6

A metallic alloy in general as compared to their pure metal components is

Accepted Answer

More corrosion resistant

Answer

Having higher melting point

Answer

Having lower hardness, reactivity and fusibility

Answer

Having lower electrical conductivity

Question 7

Thermosetting polymers are

Accepted Answer

Cast molded

Answer

Injection moulded

Answer

Extruded

Answer

None of these

Question 8

Tin coating is not done by

Accepted Answer

Vaporising

Answer

Hot dipping

Answer

Electro deposition

Answer

Spraying

Question 9

Tin vessels are corroded by

Accepted Answer

None of these

Answer

Anhydrous ammonia

Answer

Aromatic solvents

Answer

Synthetic detergent solution