Allowable pressure on high-pressure side or ammonia absorption system is of the order of_________________?

Related Mcqs:

1. Ammonia-absorption refrigeration cycle requires__________________?

   A. very little work input
   B. maximum work input
   C. nearly same work input as for vapour compression cycle
   D. zero work input
   E. none of the above

2. The evolution of heat of solution takes place in ammonia absorption plant when _____________________?

   A. ammonia vapour goes into solution
   B. ammonia vapour is driven out of solution
   C. lithium bromide mixes with ammonia
   D. weak solution mixes with strong solution
   E. lithium bromide is driven out of solution

3. Cooling water is required for following equipment in ammonia absorption plant__________________?

   A. condenser
   B. evaporator
   C. absorber
   D. condenser and absorber
   E. condenser, absorber and separator (rectifier)

4. Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system ?

   A. strong solution to weak solution
   B. weak solution to strong solution
   C. strong solution to ammonia vapour
   D. ammonia vapour to weak solution
   E. ammonia vapour to strong solution

5. The boiling point of ammonia is___________________?

   A. -100°C
   B. -50°C
   C. – 33.3°C
   D. 0°C
   E. 33.3°C

6. Aqua ammonia is used as refrigerant in the following type of refrigeration system_________________?

   A. compression
   B. direct
   C. indirect
   D. absorption
   E. none of the above

7. Ammonia is __________________?

   A. non-toxic
   B. non-inflammable
   C. toxic and non-inflammable
   D. highly toxic and inflammable
   E. none of the above

8. An important characteristic of absorption system of refrigeration is__________________?

   A. noisy operation
   B. quiet operation
   C. cooling below 0°C
   D. very little power consumption
   E. its input only in the form of heating

9. The COP of a vapor compression plant in comparison to vapor absorption plant is ________________?

   A. more
   B. less
   C. same
   D. more/less depending on size of plant
   E. unpredictable

10. Absorption system normally uses the following refrigerant___________________?

    A. Freon-11
    B. Freon-22
    C. C02
    D. S02
    E. ammonia