Process Equipment And Plant Design MCQ Questions & Answers | Chemical Engineering

A. Low corrosiveness

B. Low dirt factor

C. High specific heat

D. Low viscosity

A. Split

B. Cross

C. Cascade

D. Reverse

A. Safety valves are provided in heat exchangers for removal of non-conden-sables

B. Liquid metals and dowtherm are used for very high temperature heating

C. In a shell and tube heat exchanger, high pressure fluid is generally routed through the tube

D. A loop seal or U-seal is provided in a vertical condenser sub-cooler to prevent quick draining of the condensate

A. Results in higher shell side pressure drop

B. Can accomodate less number of tubes for a given shell diameter

C. Facilitates easier shell side cleaning; hence is more suitable for handling high dirt factor shell side fluid

D. Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer co-efficient

A. 0

B. <1

C. 1

D. >1

A. Tubes to avoid the expansion of high pressure shell construction

B. Shell side for smaller total pressure drop

C. Shell side, if the flow is counter-current and tube side if the flow is co-current

D. Shell side for large overall heat transfer co-efficient

A. 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers

B. 4 : 1 to 8 : 1 for liquid-liquid exchanger

C. < 4 : 1 for gas-gas exchangers

D. Both B & C

A. Plate spacing

B. Depth of liquid above the bubble cap slots

C. Vapour velocity in the volume between the plates

D. All of the above

A. Relieving excess pressure

B. Creating turbulence

C. Enhancing mixing rate

D. Avoiding vortex formation

A. Plain carbon steel and cast iron parts are used

B. Wall thickness is > 30 mm

C. Material of construction is high alloy steel

D. Both B & C