Mechanical Engineering : Refrigeration And Air Condition QUESTIONS AND ANSWERS :: part4 : 16 to 20
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
16.Cooling water is required for following equipment in ammonia absorption plant |
| condenser |
| evaporator |
| absorber |
| condenser and absorber |
| condenser, absorber and separator (rectifier). |
17.Moisture in freon refrigeration system causes |
| ineffective refrigeration |
| high power consumption |
| freezing automatic regulating valve |
| corrosion of whole system |
| breakdown of refrigerant. |
18.The C.O.P of a refrigeration cycle with increase in evaporator temperature, keeping condenser temperature constant, will |
| increase |
| decrease |
| remain unaffected |
| may increase or decrease depending on the type of refrigerant used |
| unpredictable. |
19.The evolution of heat of solution takes place in ammonia absorption plant when |
| ammonia vapour goes into solution |
| ammonia vapour is driven out of solution |
| lithium bromide mixes with ammonia |
| weak solution mixes with strong solution |
| lithium bromide is driven out of solution. |
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