NCCER Electrical (Questions & Answers) Solved 100% Correct!!
What is shown on a sectional drawing? Answer- cutaway view of a building
The NEC recommends maintaining voltage within a 3% drop. If a branch circuit operates at 240 volts AC. What is the minimum circuit operating volt? Answer- 232
What is the name of the connecting device shown in the diagram? Answer- split - bolt
The volt amperes in an AC circuit is the same as Answer- apparent power
What should be done to change rotation of a 3 phase motor? Answer- Swap any two T leads
5. If a voltage source of a circuit provides 240 volts and there are 5 ohms of resistance, how much current is in the circuit? Answer- 48amps
4.What is the voltage drop for a #8 (16.510 cmil) copper wire at 120v. 215 feet one way and a load of 39amps? Answer- 10.5
What instrument is used to measure current Answer- Ammeter
Which plan indicates the location of structures and equipment on a property Answer- site
Generally , the most ideal conductor is made of: Answer- copper
What is the standard size system used in the united states Answer- AWG
What is insulating tape? Answer- Non-Conductive adhesive tape
Which of these is used as a guide to assist cables entering a conduit? Answer- Piston
What type of conduit body is characterized by a threaded straight hub on each end? Answer- C
Which of the following is not a reason why electrical systems must be grounded? Answer- Limit the potential between ungrounded conductors A megger will be used to check an in-service cable. The Electrician MUST be sure that the circuit is: Answer- De-energized and locked tagged out, and tested
Rubber gloves MUST be electrically tested at MAXIMUM intervals of: Answer- 6 months
A dangerously high voltage is produced when someone opens the secondary circuit of a: Answer- Current transformer
Which choice best describes the two types of pushbutton operators typically used in motor controls Answer- Open and Closed
In the event of an emergency where the lockout/ tagout device is left secured, who can remove the lockout/tagout device? Answer- Authorize supervisor
A drawing showing a point A to point B hookup of conductors is called a: Answer- Wiring diagram
A NEMA type___ enclosure is both watertight and corrosion- resistant. Answer- 4X
What's the MAIN characteristic of a confined space? Answer- Limited access and egress
Which of the following BEST describes where the type and size of overcurrent protection is found? Answer- Panelboard schedule
A Type "X" conduit body has how many conduit entries Answer- 4
What test equipment can be used to test the condition of insulation in electrical apparatus? Answer- Megohmmeter
The opposing force to a flow of alternating current is called: Answer- Reactance
That is a trapeze type support Answer- Two threaded rods supporting a channel or strut
The opposition to current flow referred to as: Answer- resistance
The type of mounting used for lighting fixtures is indicated in the: Answer- electrical drawings
Verifying the presence or absence of voltage should be performed only by: Answer- Qualified Individuals
A conductor with 220 mils of insulation would have insulation thickness of: Answer- 0.22"
The recommended method of attaching self- regulating heating cables to pipes is by using: Answer- Fiberglass tape
What is shown on a sectional drawing? Answer- cutaway view of a building
The NEC recommends maintaining voltage within a 3% drop. If a branch circuit operates at 240 volts AC. What is the minimum circuit operating volt? Answer- 232
What is the name of the connecting device shown in the diagram? Answer- split - bolt
The volt amperes in an AC circuit is the same as Answer- apparent power
What should be done to change rotation of a 3 phase motor? Answer- Swap any two T leads
5. If a voltage source of a circuit provides 240 volts and there are 5 ohms of resistance, how much current is in the circuit? Answer- 48amps
4.What is the voltage drop for a #8 (16.510 cmil) copper wire at 120v. 215 feet one way and a load of 39amps? Answer- 10.5
What instrument is used to measure current Answer- Ammeter
Which plan indicates the location of structures and equipment on a property Answer- site
Generally , the most ideal conductor is made of: Answer- copper
What is the standard size system used in the united states Answer- AWG
What is insulating tape? Answer- Non-Conductive adhesive tape
Which of these is used as a guide to assist cables entering a conduit? Answer- Piston
What type of conduit body is characterized by a threaded straight hub on each end? Answer- C
Which of the following is not a reason why electrical systems must be grounded? Answer- Limit the potential between ungrounded conductors A megger will be used to check an in-service cable. The Electrician MUST be sure that the circuit is: Answer- De-energized and locked tagged out, and tested
Rubber gloves MUST be electrically tested at MAXIMUM intervals of: Answer- 6 months
A dangerously high voltage is produced when someone opens the secondary circuit of a: Answer- Current transformer
Which choice best describes the two types of pushbutton operators typically used in motor controls Answer- Open and Closed
In the event of an emergency where the lockout/ tagout device is left secured, who can remove the lockout/tagout device? Answer- Authorize supervisor
A drawing showing a point A to point B hookup of conductors is called a: Answer- Wiring diagram
A NEMA type___ enclosure is both watertight and corrosion- resistant. Answer- 4X
What's the MAIN characteristic of a confined space? Answer- Limited access and egress
Which of the following BEST describes where the type and size of overcurrent protection is found? Answer- Panelboard schedule
A Type "X" conduit body has how many conduit entries Answer- 4
What test equipment can be used to test the condition of insulation in electrical apparatus? Answer- Megohmmeter
The opposing force to a flow of alternating current is called: Answer- Reactance
That is a trapeze type support Answer- Two threaded rods supporting a channel or strut
The opposition to current flow referred to as: Answer- resistance
The type of mounting used for lighting fixtures is indicated in the: Answer- electrical drawings
Verifying the presence or absence of voltage should be performed only by: Answer- Qualified Individuals
A conductor with 220 mils of insulation would have insulation thickness of: Answer- 0.22"
The recommended method of attaching self- regulating heating cables to pipes is by using: Answer- Fiberglass tape
