Cooling tower MCQ -:02

 Q.1 Filling or decking in a cooling tower increases the rate of heat transfer by providing ____.

A. Increase flow of air

B. Increase flow of water

C. A large amount of wetted surface 

D. All of the above 

Ans -: C

Q.2 Which type of fan drive generally cooling towers employ ?

A. Two speed fan drive

B. Multi speed fan drive 

C. Single speed fan drive 

D. Variable speed fan drive 

And-: A

Q.3 The minimum temperature to which water can be cooled in a cooling tower is __.

A. The wet bulb temperature of air

B. The dew point temperature of air 

C. Room temperature 

D. Dry bulb temperature of air

And-: B

Q.4 The performance of an evaporator condenser largely depends on ____.

A. Wet bulb temperature 

B. Dew point temperature 

C. Room temperature 

D. Dry bulb temperature 

Ans-: D

Q.5 In which type of refrigeration system solar energy can be directly used?

A. Vapour absorption 

B. Air refrigeration system 

C. Vapour compression 

D. All of the the above 

Ans -: A

Q.6 What is the means of amount of heat thrown away by the cooling tower in kcal/hr ?

A. Heat load of cooling towers 

B. Drift of cooling towers 

C. Approach of cooling towers 

D. None of the above 

Ans -: A

Q.7 What is mean of cooling range in cooling tower?

A. Amount of heat thrown away by the cooling tower in kcal/hr

B. Difference in temperature of cold water and atmospheric temperature 

C. Difference in temperature of hot water entering and cold water leaving. 

D. None of these

Ans-: C

Q.8 The most commonly used design method for duct size is ?

A. Equal friction method

B. Velocity reduction method

C. Double duct method

D. Static regain method

Ans-: B

Q.9 The process of mixing two or more streams of moist air is called ___.

A. Isothermal 

B. Constant volume 

C. Constant pressure 

D. Adiabatic 

Ans-: D

Q.10 Which type of refrigerating plants not require electricity?

A. Vapour absorption 

B. Vortex tube

C. Air refrigeration 

D. All of the above 

Ans -: A