Chemical Engineering Mcqs

Which of the following has the highest value of refractive index ?

• (A)  Brine (sea water)
• (B)  Diamond
• (C)  Distilled water
• (D)  Glass

Answer

Submitted By :Ali Uppal

The phenomenon occurring during explosion of a hydrogen bomb is___________________?

• (A)  Nuclear fission
• (B)  Nuclear fusion
• (C)  A combination of both nuclear fission & fusion
• (D)  None of these

Answer

Submitted By :Ali Uppal

Energy of the sun arises mainly from __________________ reactions?

• (A)  Fusion
• (B)  Fission
• (C)  Combustion
• (D)  None of these

Answer

Submitted By :Ali Uppal

Recrystallisation temperature of steel is ______________________ °C?

• (A)  50
• (B)  300
• (C)  500
• (D)  800

Answer

Submitted By :Ali Uppal

Absolute zero pressure can be attained at a temperature of___________________?

• (A)  0°C
• (B)  50°K
• (C)  0°R
• (D)  None of these

Answer

Submitted By :Ali Uppal

Corrosion of metals cannot be prevented by its__________________?

• (A)  Tempering
• (B)  Chromising
• (C)  Aluminising
• (D)  Alloying

Answer

Submitted By :Ali Uppal

Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when_________________?

• (A)  Strain rate is increased
• (B)  Grain size is increased
• (C)  Prior cold deformation is increased
• (D)  Not affected by any of the above parameters

Answer

Submitted By :Ali Uppal

Which of the following rays has the least wavelength ?

• (A)  Ultraviolet rays
• (B)  Infrared rays
• (C)  Cosmic rays
• (D)  X-rays

Answer

Submitted By :Ali Uppal

Which of the following is not a principal alloying element for the structural steel ?

• (A)  Molybdenum
• (B)  Nickel
• (C)  Manganese
• (D)  Chromium

Answer

Submitted By :Ali Uppal

The following type of bonding is strongly directional in solids ?

• (A)  Vander Waal’s
• (B)  Ionic
• (C)  Metallic
• (D)  Covalent

Answer

Submitted By :Ali Uppal