Chemical Engineering Mcqs

Boiling point of a non-homogeneous mixture of immiscible liquids is _____________ that of any one of its separate components?

• (A)  Lower than
• (B)  Higher than
• (C)  Equal to
• (D)  Either

Answer

Submitted By :Ali Uppal

The crystallisation of a solute from a solution may be done by________________?

• (A)  Removal of pure solvent by evaporation
• (B)  Change of temperature thereby causing super-saturation
• (C)  Changing the nature of the system by the addition of a more soluble material
• (D)  All

Answer

Submitted By :Ali Uppal

Except for monatomic gases, the molal heat capacity at constant volume for all gases is _____________ Kcal/Kg mole.° K?

• (A)  3
• (B)  > 3
• (C)  < 3
• (D)  < 1

Answer

Submitted By :Ali Uppal

1 kg/m2 is equal to ______________ mm water column?

• (A)  1
• (B)  10
• (C)  100
• (D)  1000

Answer

Submitted By :Ali Uppal

Unit of power is____________________?

• (A)  Joule
• (B)  Watt
• (C)  Joule/Second
• (D)  Both

Answer

Submitted By :Ali Uppal

The unit of dynamic viscosity is_________________?

• (A)  Stoke
• (B)  Poise
• (C)  gm/cm sec
• (D)  Both

Answer

Submitted By :Ali Uppal

Which of the following gases is the most soluble in water ?

• (A)  NH3
• (B)  CO2
• (C)  H2S
• (D)  CH4

Answer

Submitted By :Ali Uppal

Kinematic viscosity of 1 m2 /second is equivalent to _____________ stokes?

• (A)  10
• (B)  102
• (C)  103
• (D)  104

Answer

Submitted By :Ali Uppal

A vessel of volume 1000 m3 contains air which is saturated with water vapour. The total pressure and temperature are 100 kPa and 20°C respectively. Assuming that the vapour pressure of water at 20°C is 2.34 kPa, the amount of water vapour (in kg) in the vessel is approximately ?

• (A)  17
• (B)  20
• (C)  25
• (D)  34

Answer

Submitted By :Ali Uppal

The maximum adiabatic flame temperature of fuels in air is ____________ the maximum flame temperature in pure oxygen?

• (A)  Lower than
• (B)  Higher than
• (C)  Same as
• (D)  Not related to

Answer

Submitted By :Ali Uppal