HVAC Excellence - ELECTRICITY Exam
A 240 Volt, 3 wire circuit can be split into two 120 Volt TRUE
circuits.
Any material that will readily release electrons is called; A conductor
A capacitor analyzer is designed to read; the capacitive resistance of a capacitor.
Capacitors are always connected _____________ to the start in series
winding.
Capacitors are rated in Microfarads & Volts.
The capacitor start-capacitor run (CSCR) motor provides; high starting and running torque.
Circuit breakers & fuses are primarily used to provide; protection from an overload of current.
Circuit fuses and breakers are primarily used to protect loads
Contactors are rated according to the maximum contacts.
amperage through the;
Page 1 of 16
,HVAC Excellence - ELECTRICITY Exam
Current flow is: The flow of electrons in the circuit.
A device with overload protection used to control a line starter.
motor is a;
A diode is used to; control the direction of electron flow.
Direct Digital Control (DDC) is electronic controls use for equipment operation and monitoring
Direction of rotation of a single phase induction motor is the direction of current flow through the start winding.
determined by.
Divided Voltage can be calculated by; I times R
The ______________ drawing illustrates where the components pictorial
are located in small appliances.
The electric meter on a house measures the ______________ wattage
passing th rough it.
An electron has; a negative charge.
Page 2 of 16
, HVAC Excellence - ELECTRICITY Exam
An electronically commutated motor (ECM) is designed provide proper air flow under various conditions.
to;
Excessive current can be caused by; short circuit.
Fuses are sized by: Volts & Amps
How many watts of power are used by a heater operating 1200 watts
at 240 volts and drawing 5 amps?
How many Watts of Power are used by a heater 2,300 Watts
operating at 460 Volts and drawing 5 Amps?
How much resistance must be placed in a 120 volt circuit 60 Ohms
in order to limit the current to 2 amps?
If contacts become badly pitted, it is acceptable to. replace the contacts or control
If the conductor in an AÇ circuit is wound into a coil, the inductive reactance.
resulting EMF opposes the supply voltage. This
opposition is called.
Page 3 of 16
A 240 Volt, 3 wire circuit can be split into two 120 Volt TRUE
circuits.
Any material that will readily release electrons is called; A conductor
A capacitor analyzer is designed to read; the capacitive resistance of a capacitor.
Capacitors are always connected _____________ to the start in series
winding.
Capacitors are rated in Microfarads & Volts.
The capacitor start-capacitor run (CSCR) motor provides; high starting and running torque.
Circuit breakers & fuses are primarily used to provide; protection from an overload of current.
Circuit fuses and breakers are primarily used to protect loads
Contactors are rated according to the maximum contacts.
amperage through the;
Page 1 of 16
,HVAC Excellence - ELECTRICITY Exam
Current flow is: The flow of electrons in the circuit.
A device with overload protection used to control a line starter.
motor is a;
A diode is used to; control the direction of electron flow.
Direct Digital Control (DDC) is electronic controls use for equipment operation and monitoring
Direction of rotation of a single phase induction motor is the direction of current flow through the start winding.
determined by.
Divided Voltage can be calculated by; I times R
The ______________ drawing illustrates where the components pictorial
are located in small appliances.
The electric meter on a house measures the ______________ wattage
passing th rough it.
An electron has; a negative charge.
Page 2 of 16
, HVAC Excellence - ELECTRICITY Exam
An electronically commutated motor (ECM) is designed provide proper air flow under various conditions.
to;
Excessive current can be caused by; short circuit.
Fuses are sized by: Volts & Amps
How many watts of power are used by a heater operating 1200 watts
at 240 volts and drawing 5 amps?
How many Watts of Power are used by a heater 2,300 Watts
operating at 460 Volts and drawing 5 Amps?
How much resistance must be placed in a 120 volt circuit 60 Ohms
in order to limit the current to 2 amps?
If contacts become badly pitted, it is acceptable to. replace the contacts or control
If the conductor in an AÇ circuit is wound into a coil, the inductive reactance.
resulting EMF opposes the supply voltage. This
opposition is called.
Page 3 of 16
