The water circuit in shell and coil and coil-type tube-in-a-tube condensers must be
cleaned ____.
a. by removing the end caps
b. with a brush
c. chemically
d. by air pressure
Give this one a try later!
c. chemically
How many watts of electrical power are equal to 1 horsepower?
a. 33000
b. 15000
,c. 746
d. 660
Give this one a try later!
c. 746
Most of the heat energy in the suction vapor entering the compressor is ____.
a. heat of compression
b. sensible heat
c. latent heat
d. defrost heat
Give this one a try later!
c. latent heat
Transformers are rated using ___.
a. volt-amperes
b. volt-ohms
c. amperes-ohms
d. volt-resistance
Give this one a try later!
a. volt-amperes
,A ton of refrigeration is equal to ____.
a. 1 ton of ice
b. 288000 Btu/24-hr.
c. 144 Btu/hr.
d. 12000 Btu/min.
Give this one a try later!
b. 288000 Btu/24-hr.
The amount of heat needed to change the temperature of a substance will vary with
the type of substance.
This heat quality is called the ___ of the substance.
a. sensible heat
b. specific heat
c. latent heat
d. relative heat
Give this one a try later!
b. specific heat
The refrigerant in a refrigeration system changes state in the ____.
a. condenser and compressor
b. compressor and expansion device
c. expansion device and evaporator
d. condenser and evaporator
Give this one a try later!
, d. condenser and evaporator
Which of the following is typically measured with an inclined water manometer?
a. static pressure in a duct system
b. pressure in a refrigeration system
c. manifold pressure in a gas fired furnace
d. nozzle pressure of an oil burner
Give this one a try later!
a.static pressure in a duct system
The instrument to use to check for a short in the compressor motor winding is a(n) ____.
a. ohmmeter
b. ammeter
c. voltmeter
d.milliammeter
Give this one a try later!
a.ohmmeter
A split-phase has a ____ winding and a ____ winding.
a. start, run
b. start, common
cleaned ____.
a. by removing the end caps
b. with a brush
c. chemically
d. by air pressure
Give this one a try later!
c. chemically
How many watts of electrical power are equal to 1 horsepower?
a. 33000
b. 15000
,c. 746
d. 660
Give this one a try later!
c. 746
Most of the heat energy in the suction vapor entering the compressor is ____.
a. heat of compression
b. sensible heat
c. latent heat
d. defrost heat
Give this one a try later!
c. latent heat
Transformers are rated using ___.
a. volt-amperes
b. volt-ohms
c. amperes-ohms
d. volt-resistance
Give this one a try later!
a. volt-amperes
,A ton of refrigeration is equal to ____.
a. 1 ton of ice
b. 288000 Btu/24-hr.
c. 144 Btu/hr.
d. 12000 Btu/min.
Give this one a try later!
b. 288000 Btu/24-hr.
The amount of heat needed to change the temperature of a substance will vary with
the type of substance.
This heat quality is called the ___ of the substance.
a. sensible heat
b. specific heat
c. latent heat
d. relative heat
Give this one a try later!
b. specific heat
The refrigerant in a refrigeration system changes state in the ____.
a. condenser and compressor
b. compressor and expansion device
c. expansion device and evaporator
d. condenser and evaporator
Give this one a try later!
, d. condenser and evaporator
Which of the following is typically measured with an inclined water manometer?
a. static pressure in a duct system
b. pressure in a refrigeration system
c. manifold pressure in a gas fired furnace
d. nozzle pressure of an oil burner
Give this one a try later!
a.static pressure in a duct system
The instrument to use to check for a short in the compressor motor winding is a(n) ____.
a. ohmmeter
b. ammeter
c. voltmeter
d.milliammeter
Give this one a try later!
a.ohmmeter
A split-phase has a ____ winding and a ____ winding.
a. start, run
b. start, common
