Electrical Definition Exam Quiz
- 1.- The SI unit of electric charge equal to the quantity of electricity transferred along the conductor by a current of one ampere in one second
- A.
KILOWATT (kW)
- B.
COULUMB (C)
- C.
WATTAGE
- D.
POTENTIAL DIFFERENCE
- 2.The energy per unit charge available for conversion from a chemical, mechanical or other form of energy into electrical energy or vice versa in a conversion devise as a battery, generator or a motor
- A.
ELECTROMOTIVE FORCE (emf)
- B.
VOLTAGE
- C.
AMPERE (A)
- D.
OHM
- 3.The basic SI unit of electric current, equivalent to a flow of one coulomb per second or to the steady current produced by one volt applied to one resistance of one ohm
- A.
AMPERAGE
- B.
CIRCUIT
- C.
AMPERE (A)
- D.
PARALLEL
- 4.The SI unit equal to one joule per second or to the power represented by a current of one ampere flowing across a potential difference of one volt W= V x A
- A.
WATT (W)
- B.
ELECTROMOTIVE FORCE (emf)
- C.
POTENTIAL DIFFERENCE
- D.
RESISTANCE (R)
- 5.The strength of an electric current measured or expressed in amperes: analogous to the rate of water flow
- A.
AMPERAGE
- B.
RESISTANCE (R)
- C.
BATTERY
- D.
ELECTRODE
- 6.A pliable metallic strand or twisted or woven assembly of such strands often insulated with a dielectric material and used as a conductor of electricity
- A.
INSULATOR
- B.
WIRE
- C.
NON- METALLIC SHEATED CABLE
- D.
SHIELDED CABLE
- 7.An electric cable enclosed within a metallic sheath in order to reduce the effects of external electric or magnetic fields
- A.
COAXIAL CABLE
- B.
FLEXIBLE METAL CONDUIT
- C.
RIGID METAL CONDUIT
- D.
SHIELDED CABLE
- 8.The minimum applied voltage at which a given insulator breaks down and permits current to pass
- A.
BREAKDOWN VOLTAGE
- B.
DIELECTRIC
- C.
JUNCTION BOX
- D.
GROMMET
- 9.An enclosure for housing and protecting electric wires or cables that are joined together in connecting or branching electric circuits
- A.
PULL BOX
- B.
THWN
- C.
INSULATOR
- D.
JUNCTION BOX
- 10.An amount of power especially the power required to operate an electrical device or appliance, expressed in watts
- A.
WATTAGE
- B.
KILOWATT (kW)
- C.
COULUMB (C)
- D.
WATT (W)
- 11.A unit of power equal to 1,000 watts
- A.
KILOWATT-HOUR (kWh)
- B.
POTENTIAL DIFFERENCE
- C.
VOLTAGE
- D.
KILOWATT (kW)
- 12.Potential difference or electromotive force expressed in volts: analogous to pressure in water flow
- A.
VOLT (V)
- B.
CURRENT
- C.
VOLTAGE
- D.
AMPERE (A)
- 13.The opposition of a conductor to the flow of current, causing some of the electric energy to be transformed into heat and usually measured in ohms
- A.
AMPERE (A)
- B.
AMPERAGE
- C.
OHM
- D.
RESISTANCE (R)
- 14.The principle that the rate of production of heat by direct current is directly proportional to the resistance of the circuit and to the square of the current
- A.
CIRCUIT
- B.
CONDUCTIVITY
- C.
RESISTIVITY
- D.
JOULE’S LAW
- 15.A measure of the ability of a substance to conduct electric current, equal to the reciprocal of the resistivity of the substance. Also called specific conductance.
- A.
CONDUCTIVITY
- B.
SERIES
- C.
PARALLEL
- D.
BATTERY
- 16.RHW
- A.
Moisture resistant thermoplastic
- B.
Moisture and heat resistance rubber
- C.
Asbestos and varnished cambric
- D.
Silicone asbestos
- 17.XHHW
- A.
Silicone asbestos
- B.
Heat resistant thermoplastic
- C.
Moisture & heat resistant thermoplastic
- D.
Moisture & heat resistant cross linked
- 18.THW
- A.
Moisture & heat resistant thermoplastic
- B.
Moisture resistant thermoplastic
- C.
Moisture and heat resistance rubber
- D.
Asbestos and varnished cambric
- 19.Used as supports and for additional protection for wires
- A.
CUT OUT BOX
- B.
INSULATOR
- C.
OUTLET BOX
- D.
BUSHING
- 20.Where cable ends
- A.
UTILITY BOX
- B.
PULL BOX
- C.
CUT OUT BOX
- D.
OUTLET BOX
- 21.Metal box with hinge & enclosure. House or fuse box
- A.
CUT OUT BOX
- B.
OUTLET BOX
- C.
PULL BOX
- D.
UTILITY BOX
- 22.A rubber or plastic washer inserted in a hole in a metal part to prevent grounding of a wire passing through the hole
- A.
KNOCKOUT
- B.
GROMMET
- C.
JUNCTION BOX
- D.
BUSHING
- 23.The maximum voltage that can be applied to a given material without causing it to breakdown, usually expressed in volts or kilovolts per unit of thickness
- A.
DIELECTRIC STRENGTH
- B.
DIELECTRIC
- C.
BREAKDOWN VOLTAGE
- D.
CABLE TRAY
- 24.An open metal framework for supporting insulated electrical conductors
- A.
BUS DUCT
- B.
DUCT
- C.
MULTI- OUTLET ASSEMBLY
- D.
CABLE TRAY
- 25.A surface mounted raceway designed to house the electrical wires for a circuit and a series of receptacles
- A.
MULTI- OUTLET ASSEMBLY
- B.
SURFACE RACEWAY
- C.
RACEWAY
- D.
FLEXIBLE METAL CONDUIT
Questions: 25 | Attempts: 11235 | Last updated: Dec 29, 2020
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