Practice MCQ Questions and answers on Process Equipment & Plant Design Mcqs for Chemical

A. 0

B. 1

C. <0

D. > 1

A. 1 to 5

B. 10 to 20

C. 30 to 40

D. 40 to 50

A. It is unsuitable for concentrating those liquids, which form a scale or deposit salt

B. It is suitable for process, in which the final product is a liquor instead of solid

C. Its usual dimensions are: tube dia = 2-3 cms; evaporator body dia = 1-4 metres and evaporator height = 2.5-4 metres

D. Liquor flows inside the tube, while the steam is outside submerging the tube

A. 1.3 to 2

B. 1.6 to 2

C. 2.5

D. 1.5 to 3

A. Hemispherical

B. Torispherical

C. Conical or flat plate

D. Elliptical

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. 0

B. ∞

C. > 1

D. < 1

A. Sieve plate

B. Packed

C. Bubble cap plate

D. None of these

A. Decreases upwards

B. Increases upwards

C. Remains same throughout

D. May decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell

A. If sufficient residence time (around 8 seconds) is not provided to the downcoming liquid in the downcomer, it may entrain some vapour

B. The liquid head in the downcomer should not be greater than one half the plate spacing to avoid flooding

C. The discharge end of the downcomer must project far enough into the tray liquid so that no gas bubbles can enter the open end and by pass the bubble c

D. None of these