multimeter
switches
electricity
safety
circuits
ohm law
symbols
compressor motors
100
AC on the multi meter stands for _____?
alternating current
100
high pressure switch opens on .
rise in pressure
100
Electricity is a form of ____.
energy
100
what device(s) disrupts current flow when current flow exceeds the rated amount?
circuit breaker
100
In a parallel circuit if one load fails all loads fail.
true or false
false
100
The electromotive force required to generate 1 A of current through 1 Ω of resistance equals one ____
volt
100
transformer
100
what type of compressor relay
potential relay
200
When using a multi meter the _____ is used to read amps.
amp clamp
200
low pressure switch opens
drop in pressure
200
The ____ of an atom has a negative charge.
electrons
200
During an electric shock, ____.
the body becomes the conductor
200
Which formula represents Ohm’s law?
Correct Answer E = I × R
200
To determine voltage, you must ____.
multiply current by resistance
200
capacitor
200
This diagram shows a(n) _____ split capacitor motor.
permanent
300
what state is the refrigerant when leaving the condenser
hpht liquid
300
Normally closed. Open when the temperature goes below the set point
300
The unit of measure for voltage is the ____.
volt
300
Power should be shut off when working on electrical circuits and equipment. What is the next step?
lock out tag out
300
Is the thermostat switch on the low voltage or line voltage side of the circuit?
low voltage
300
Watts Law was discovered by Georg Simon Ohm
true or false
false
300
relay
300
Name the type of motor that has the same ohm reading on all 3 windings
3 phase motor
400
how to test for a complete circuit
continuity
400
How many contactor contacts are control
3
400
Another term for voltage is ____.
emf
400
____ certifies that equipment/component standards are met.
ul
400
In Ohms Law what does E represent?
volt
400
r=15
e=480
i=
32
400
compressor
400
what type of relay is this
ptc relay
500
capacitors are measured in what
microfarad
500
what type of switch.
3 way
500
____ is the material best for low energy system contacts.
gold
500
Which is the safest way for a technician to use a vacuum pump when the ground is wet?
use a gfci
500
What is a schematic used for?
Identifying the path the current takes through a circuit.
500
e=240
i=10
r=
24
500
diode
500
overload