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Oxygen will explode when it comes into contact with oil
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At the dew point temperature, dry bulb temperature is _____ wet bulb temperature:
The flash point of a transfer fluid in a hydronic piping system shall be a minimum of _______ degrees above the maximum system operating pressure.
The capacity of an expansion valve is determined by which if the following:
Cool vapor flows in which of the following in a refrigeration system:
Refrigerants with ______ specific volume at a given suction pressure and temperature will require higher compressor displacement:
Free moisture / water reacts with refrigerants at _______ temperature which attacks the system components and causes corrosion:
Refrigerants with ______ specific volume at a given suction pressure and temperature will require higher compressor displacement
A dense _____ smoke forms when the ammonia comes in contact with the sulfur dioxide
Which of the following helps in maintaining the pressure difference between the high-pressure (condenser) and low-pressure (evaporator) sides of the refrigeration system
Centrifugal compressor cannot be coupled to direct expansion coil systems:
_____ is the weight of the moisture in the unit mass of dry air:
The refrigerant velocity inside a pipe depends on which of the following:
When refrigerant absorb a high amount of moisture corrosive acids will be formed:
Which of the following refrigerant have higher efficiency during longer run:
The expansion device is typically located at the end of the ______ :
The amount of the heat that the condenser rejects is always _____ than the heat removed in the evaporator:
Dielectric strength is an indicative of moisture content in the refrigerant
Refrigerants are desired to have ____ freezing point:
Pilot Solenoid valve is a three way valve. Two valves are connected to suction lines and liquid line respectively. Third valve is connected to _______
What is the function of a heat anticipator wire in the thermostat?
Inside the condenser or in the liquid line, when liquid is sub-cooled, then there is no change in pressure:
The _____ reading on a psychrometric chart shows the total heat content of a pound of air.
The addition or removal of heat to the air without any change in the moisture content results in change in which of the following:
Thermodynamic performance of simple CO2 cycle is _____ than HFCs
The _______connects the evaporator to the compressor
For large hp motor, the number of starts are restricted to _____ per hour:
Ozone layer is present in which of the following layers of earth:
The secondary refrigerants or brines may undergo change of state in refrigeration system:
The use of gypsum boards to form plenums shall be limited to systems where the temperatures do not exceed __________ degrees.
