Top 250+ Solved Metallurgy MCQ Questions Answer

a. Anti-parallel to each other

b. Parallel to each other

c. Random to each other

d. Anti-parallel but of unequal magnitudes

e. None of the above

a. 75 - 90 kg/mm2

b. 60 - 75 kg/mm2

c. 90 - 100 kg/mm2

d. 50 - 60 kg/mm2

e. 35 - 45 kg/mm2

a. It has low melting point

b. It is found is steels

c. It is brilliantly white

d. It is hard

e. It is brittle

a. Indirect arc furnace

b. Cupola

c. Low specific heat of quenching oil

d. Open hearth furnace

e. Air furnace

a. Water, oil, fused alst, air

b. Water, air, fused salt, oil

c. Oil, fused salt, air, water

d. Air, water, oil, fused salt

e. Cast iron

a. by avoiding sharp projections and sudden transitions from thick to thin sections

b. articles should be free from stress before heat treatment

c. heat to minimum stable temperature for hardening

d. Any of the above

e. Low specific heat of quenching oil

a. Stray magnetic fields

b. High voltage

c. High resistance of contact surface

d. High power

e. Eddy currents

a. regions enriched in carbon are formed in first state of burning

b. non-oxidized cavities and blow holes are formed during second stage

c. iron oxide inclusions are formed in third stage

d. All of the above

e. Low specific heat of quenching oil

a. Ionised air

b. Heated air

c. Nitric acid

d. Ammonia

e. Nitrous oxide

a. Mild steel

b. Pig iron

c. Nodular cast iron

d. Grey cast iron

e. Wrought iron

a. Increase with square of frequency

b. Increase with fourth power of frequency

c. Increase with frequency

d. Increase as inverse of frequency

e. Increase with cube of frequency

a. Limestone

b. Fluorspar

c. Soda Ash

d. Any of the above

e. None of the above

a. Cast iron water pipes

b. Cycle chains

c. Gas turbine blades

d. Steam engine flywheel

e. All of the above

a. 0.010 to 0.025

b. 1.0 to 1.25

c. 0.10 to 0.25

d. 3.0 to 4.50

e. 0.8 to 0.85

a. Cubic

b. BCC

c. FCC

d. HCC

e. Any of the above