Power Plant Engineering (2171910) MCQs

MCQs of Condensers and Cooling Towers

Showing 21 to 30 out of 35 Questions
21.

 In practice, the Common efficiency range achieved in the cooling tower is

(a)

 98 to 100 %

(b)

 90 to 95 %

(c)

 95 to 98 %

(d)

 70 to 75 %

Answer:

Option (d)

22.

In crossflow cooling tower the air moves ___________through the fill across the downward fall of the water.

(a)

horizontally

(b)

inclined

(c)

vertically upward

(d)

vertically downward

Answer:

Option (a)

23.

Forced draft cooling towers have the following disadvantages.

(a)

High maintenance

(b)

Susceptible to water leaks

(c)

High fan size

(d)

All the option are correct

Answer:

Option (d)

24.

In ___________cooling arrangement the air is blown through and the fans are located at the bottom

(a)

forced draught

(b)

induced draught

(c)

both induced and forced draught

(d)

none of these

Answer:

Option (a)

25.

In__________cooling arrangement, the air is blown through and the fans are located at the top.

(a)

forced draught

(b)

induced draught

(c)

both induced and forced draught

(d)

none of the above

Answer:

Option (b)

26.

Which is the jet type condenser?

(a)

Parallel flow

(b)

Central flow

(c)

Down flow

(d)

Inverted flow

Answer:

Option (a)

27.

In the steam condensing plant the pump used to send condensate to the boiler as feed water is

(a)

air extraction pump

(b)

condensate extraction pump

(c)

circulating cooling pump

(d)

boiler feed pump

Answer:

Option (d)

28.

In jet condenser, cooling water and the steam condensed come in _____ contact.

(a)

indirect

(b)

direct

(c)

both direct and indirect

(d)

none of the given

Answer:

Option (b)

29.

In a closed vessel when the steam and air mixture is filled, the total pressure of the mixture is equal to the sum of the partial pressure of air and the partial pressure of steam is

(a)

critical pressure

(b)

nozzle efficiency

(c)

dalton law of partial pressure

(d)

vacuum efficiency

Answer:

Option (c)

30.

Which of the following is the simplest method of cooling the condenser water?

(a)

Spray cooling pond

(b)

Cooling tower

(c)

Indirect air cooling

(d)

Hyperbolic cooling tower

Answer:

Option (a)

Showing 21 to 30 out of 35 Questions