Chemical Engineering Mcqs

Fireclay bricks is not used for lining the_______________?

• (A)  Cupola
• (B)  Gas producer
• (C)  Bottom of hot metal mixer
• (D)  Roof of open hearth furnace

Answer

Submitted By :Ali Uppal

Concentration of a solution expressed in terms of _______________ is independent of temperature?

• (A)  Molarity
• (B)  Normality
• (C)  Molality
• (D)  None of these

Answer

Submitted By :Ali Uppal

The reaction A + B → C has been conducted in a reactor as shown below. The number of boundaries around which material balance can be written, are_________________?

• (A)  1
• (B)  6
• (C)  3
• (D)  4

Answer

Submitted By :Ali Uppal

A vapor whose partial pressure is less than its equilibrium vapor pressure is called a ______________ vapor?

• (A)  Saturated
• (B)  Supersaturated
• (C)  Superheated
• (D)  None of these

Answer

Submitted By :Ali Uppal

Lower wall courses of soaking pits are made of _____________ bricks to avoid the action of molten slag & scale?

• (A)  Chrome or magnesite
• (B)  Silicon carbide
• (C)  Silica
• (D)  Low duty fireclay

Answer

Submitted By :Ali Uppal

Refractories used in/for ______________ should have low thermal conductivity?

• (A)  Coke ovens
• (B)  Insulation
• (C)  Regenerators
• (D)  Muffle furnaces

Answer

Submitted By :Ali Uppal

Faster rate of drying of moulded refractories results in high ______________ of refractories?

• (A)  Green strength
• (B)  Voids
• (C)  Shrinkage
• (D)  Both

Answer

Submitted By :Ali Uppal

Carborundum used for making crucibles for melting non-ferrous metals is chemically________________?

• (A)  Silicon carbide
• (B)  Silicon nitride
• (C)  Crystalline magnesia
• (D)  Zirconium sulphate

Answer

Submitted By :Ali Uppal

Permeability of bricks is a measure of the___________________?

• (A)  Refractoriness
• (B)  Melting point
• (C)  Rate at which a fluid will pass through the pores
• (D)  Expansion during heating

Answer

Submitted By :Ali Uppal

For an ideal solution, the total vapor pressure varies _____________ with the composition (expressed as mole fraction)?

• (A)  Inversely
• (B)  Exponentially
• (C)  Linearly
• (D)  Negligibly

Answer

Submitted By :Ali Uppal