Name: Score:
120 Multiple choice questions
Definition 1 of 120
The intention of the overall schematic is to show how the circuit ____.
components are connected
fails
functions
looks
Definition 2 of 120
The ability to utilize all types of communication skills is ____ to the HVACR technician.
not as important as "hands-on" technical skills
somewhat important
unimportant
very important
Definition 3 of 120
At 32°F, 1 lb of ice can be changed to 1 lb of water by adding ____ Btu.
32 Btu
44 Btu
144 Btu
970 Btu
,Definition 4 of 120
The amount of matter in a substance is called ____.
gravity
mass
volume
weight
Definition 5 of 120
Solve to find the Celsius temperature corresponding to 60°F.
-1.1°C
0.0°C
15.6°C
26.7°C
Note: 32°F = 0°C. 9/5°F = 1°C.
°F = (9/5 x °C) + 32
°C = (°F - 32) x 5/9
Definition 6 of 120
A coulomb is a charge of ____ electrons.
a. 6.28
b. 628
c. 628 Million
d. 6.28 x 10^18
,Definition 7 of 120
What type of ac motor has the highest starting torque and the greatest efficiency?
Capacitor-start, capacitor-run
Permanent split-capacitor
Split-phase
Three-phase
Definition 8 of 120
What is one of the advantages of a glass-stem thermometer?
It is very accurate
It is very durable
It comes with a digital readout
Non of the above
Definition 9 of 120
What is the CFM requirements for an 1,800-ft2 house with 8-ft ceilings, if five air changes per hour
are needed?
400 CFM
1,200 CFM
1,600 CFM
2,400 CFM
, Definition 10 of 120
Relays and contactors are ____ control switches.
electrically operated
manually operated
pressure-activated
temperature-activated
Definition 11 of 120
How many terminals does a dual-voltage three-phase motor have?
3
6
9
12
Definition 12 of 120
The amount of heat (Btu) needed to raise the temperate of 1 lb of a substance 1°F is called the ____
heat of the substance.
absolute
latent
sensible
specific
120 Multiple choice questions
Definition 1 of 120
The intention of the overall schematic is to show how the circuit ____.
components are connected
fails
functions
looks
Definition 2 of 120
The ability to utilize all types of communication skills is ____ to the HVACR technician.
not as important as "hands-on" technical skills
somewhat important
unimportant
very important
Definition 3 of 120
At 32°F, 1 lb of ice can be changed to 1 lb of water by adding ____ Btu.
32 Btu
44 Btu
144 Btu
970 Btu
,Definition 4 of 120
The amount of matter in a substance is called ____.
gravity
mass
volume
weight
Definition 5 of 120
Solve to find the Celsius temperature corresponding to 60°F.
-1.1°C
0.0°C
15.6°C
26.7°C
Note: 32°F = 0°C. 9/5°F = 1°C.
°F = (9/5 x °C) + 32
°C = (°F - 32) x 5/9
Definition 6 of 120
A coulomb is a charge of ____ electrons.
a. 6.28
b. 628
c. 628 Million
d. 6.28 x 10^18
,Definition 7 of 120
What type of ac motor has the highest starting torque and the greatest efficiency?
Capacitor-start, capacitor-run
Permanent split-capacitor
Split-phase
Three-phase
Definition 8 of 120
What is one of the advantages of a glass-stem thermometer?
It is very accurate
It is very durable
It comes with a digital readout
Non of the above
Definition 9 of 120
What is the CFM requirements for an 1,800-ft2 house with 8-ft ceilings, if five air changes per hour
are needed?
400 CFM
1,200 CFM
1,600 CFM
2,400 CFM
, Definition 10 of 120
Relays and contactors are ____ control switches.
electrically operated
manually operated
pressure-activated
temperature-activated
Definition 11 of 120
How many terminals does a dual-voltage three-phase motor have?
3
6
9
12
Definition 12 of 120
The amount of heat (Btu) needed to raise the temperate of 1 lb of a substance 1°F is called the ____
heat of the substance.
absolute
latent
sensible
specific
