The material of pipe lines for a system using Freon as a refrigerant

1.	The material of pipe lines for a system using Freon as a refrigerant should be
A.	Brass
B.	Copper
C.	Steel
D.	Aluminium
Answer» C. Steel

Discussion

No Comment Found

Related MCQs

A room having dimensions of 5 m × 5 m × 3 m contains air at 25°C and 100 kPa at a relative humidity of 75%. The corresponding value of ps is 3.169 kPa. The partial pressure of dry air will be nearly
For an air-conditioned space, RTH = 100 kW, RSHF = 0.75, volume flow rate of air is 100 m3/minute and room specific humidity is 0.01 kg/kg of dry air. The specific humidity of supply air in kg/kg of dry air is
A thin layer of water in field is formed after a farmer has watered it. The ambient air conditions are: temperature 20 ° C and relative humidity 5%. An extract of steam tables is given below.Temperature (°C)-15-10-50.015101520Saturation pressure (kPa)0.100.260.400.610.871.231.712.34Neglecting the heat transfer between the water and the ground, the water temperature in the field after phase equilibrium is reached equals
In air-conditioning systems, air may be cooled and dehumidified by1. Spraying chilled water to air in the form of fine mist.2. Circulating chilled water or brine in a tube placed across the air flow3. Placing the evaporator coil across the air flow.Which of the above statements are correct?
During the evaporation cooling process, wet bulb temperature:
Air (at atmospheric pressure) at a dry bulb temperature of 40°C and wet bulb temperature of 20°C is humidified in an air washer operating with continuous water recirculation. The wet bulb depression (i.e. the difference between the dry and wet bulb temperatures) at the exit is 25% of that at the inlet. The dry bulb temperature at the exit of the air washer is closest to
During the chemical dehumidification process of air
If a mass of moist air in an airtight vessel heated to a higher temperature, then
If a certain mass of moist air in an air tight vessel is heated to a higher temperature, then
Dew point temperature is the temperature at which condensation begins when the air is cooled at constant

The material of pipe lines for a system using Freon as a refrigerant should be

Discussion

No Comment Found

Related MCQs

Reply to Comment