Engineering Materials and Metallurgy Mock Test 1

10%

Question 1 of 10

1. An iron with high-silicon content is a _______

Pig iron

Grey iron

White iron

Malleable iron

Question 1 of 10

Question 2 of 10

2. What is the defining property of Wrought Irons?

No carbon

Completely carbon-filled

High carbon

Low carbon

Question 2 of 10

Question 3 of 10

3. The property of a material that produces an opposing magnetizing force, which removes the preceding magnetizing effect, is called as ___________

Permeability

Superconductivity

Hysteresis

Coercive force

Question 3 of 10

Question 4 of 10

4. Which family of steels are referred to as chromoly?

43xx

41xx

44xx

40xx

Question 4 of 10

Question 5 of 10

5. What is Fick’s first law of diffusion?

Question 5 of 10

Question 6 of 10

6. What is the emissivity of aluminum foil?

0.9

0.04

0.03

0.02

Question 6 of 10

Question 7 of 10

7. Specific heat of materials is expressed in terms of __________

m³/kg

J/kg K

W/m K

J/K

Question 7 of 10

Question 8 of 10

8. What effect do thermal variations in volume have on a body?

Phase transformation

Expansion

Cracking

Contraction

Question 8 of 10

Question 9 of 10

9. Ultra high-speed steels are made of which of the following elements?

Tungsten and molybdenum

Vanadium and cobalt

Molybdenum and cobalt

Chromium and molybdenum

Question 9 of 10

Question 10 of 10

10. Alloy steels containing 0.05% to 0.15% of alloying elements are called _______

Microalloyed steel

Weathering steel

Stainless steel

Tool and die steel

Question 10 of 10