Chemical Engineering MCQs

A. Surface roughness
B. Pores
C. Spherical inclusion
D. Crack

A. Malleable iron
B. Grey cast iron
C. Chilled cast iron
D. White cast iron

A. Below the yield point
B. Above the yield point
C. Below the elastic limit
D. At the elastic limit

A. To reduce the head loss in discharge
B. To increase the pump efficiency
C. To collect liquid from the periphery of the impeller and to transmit it to the delivery pipe at constant velocity
D. To increase the pump discharge rate

A. Ability to absorb shock
B. Capacity to store energy
C. Ratio of the wire & coil diameters
D. Load to produce unit deflection

A. Wrought iron
B. Stainless steel
C. Mild steel
D. High speed steel

A. Promotes graphite module formation
B. Improves its ductility
C. Does not promote graphite flakes formation
D. Increases the fluidity of molten metal

A. Wet bulb temperature=dry bulb temperature
B. Wet bulb temperature=dew point temperature
C. Saturation temperature=dew point temperature
D. All ‘a’, ‘b’ & ‘c’

A. More
B. Equal
C. Less
D. Double

A. Rigid
B. Tough
C. Ductile
D. Plastic