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1106 questions found
A good refrigerant has a
- low condensation temperature and high condensation pressure.
- low condensation temperature and low condensation pressure.
- high condensation temperature and low condensation pressure.
bennguli asking:
kindly explain
In a heat pump
- the evaporator gains heat in cycles.
- the condenser always loses heat flow.
- the pump operates in both directions.
bennguli asking:
kindly explain
You are at the north pole where the temperature is minus 50 degrees C below freezing. What sort of thermometer would you use to measure it?
- Water.
- Alcohol.
- Mercury.
bennguli asking:
i don't get it guys
The surface area of a cone whose height is 10 cm and diameter is 8 cm is
- 40pi cm2 .
- 80pi cm2.
- 120pi cm2 .
giovanni asking:
how?? the lateral surface of a cone??
The surface area of a cone whose height is 10 cm and diameter is 8 cm is
- 40pi cm2 .
- 80pi cm2.
- 120pi cm2 .
giovanni asking:
how?? the lateral surface of a cone??