A secondary cell is charged with a constant current of 10 amperes for 10 hours. How much is accumulated?

At starting, the motor current is high due to

A cell whose emf is 1.45V has an internal resistance of 4 ohms. what current will flow if this cell is connected across a 1-ohm resistor?

what would be the advantage of 240V rather than 120V on the load with the same voltage?

what is the amperage of 120V, 1 phase circuit that supplies a load of 3.12kVA?

During a short circuit test on a transformer, which side is short circuited?

___ can be generated.

not readily accessible to persons unless special means for access used is ___.

the instrument used to indicate phase relation between current and voltage is the ____.

An advantage of 240 volt system compared wit h120 volt system of the same wattage is ____.

motor enclosure designed and constructed to contain sparks and flashes that may ignite surroundings gas and vapors is called ____.

three horsepower is equivalent to ___ watts.

a Wheatstone bridge is used to measure ___ resistance.

I. low II. medium III. high

the grounded conductor would connect to the ___ of a lampholder.

the voltage per turn in primary of a transformer is ___ the voltage per turn in secondary.

on a 120V, 1phase, ground fault protection for personnel operation on the principal of unbalanced current between ____.

a negatively charge body has ____.

basically all electric motors operation on the principle of repulsion or ____.

how many kw hours are consumed by 25-60 watt light bulbs burning 5 hours in 120V circuit?

a fitting is ___.

If a fuse becomes hot under normal load, a probable cause is _

A lighting fixture is to be controlled independently from two different locations. The type of switch required in each of the two locations is a

Which of the following hacksaw blades should be used for the best results in cutting EMT?

A shunt is sometimes used to increase the range of an electrical measuring instrument. The shunt is normally used when measuring

Continually overloading a conductor is a poor practice because it causes

To fasten a raceway to a solid concrete ceiling, you would use_

When resistors are connected in series, the total resistance is __

If a 120 volt incandescent light bulb is operating at a voltage of 125 volts, the result will be _

The part of an electrical system that performs a mechanical function rather than electrical function is called a(n)_

The reason for grounding the frame of a portable electric hand tool is to ___

You would use an approved __ to protect conductors from abrasion where they enter a box.

When applying rubber tape to an electrical splice, it would be necessary to __

The connection between the grounded circuit conductor and the equipment grounding conductor at the service is called

The current-carrying capacity of conductors expressed in amperes is _

A generator may lost residual magnetism because of _

Electrical equipment may best be mounted on a concrete wall by using one of the following. Which one is this?

One horsepower is equivalent to how many Watts?

Generally all ac electric motors operate on the principle of induction or

In series circuit, the total resistance is _

Sheet metal troughs with hinged or removable covers for housing and protecting wires and cables and which conductors are laid in place after this object has been installed as a complete system

Externally operable means:

Parts of electric equipment which in ordinary operation produce arcs, sparks, flames, or molten metal shall be enclosed or separated and isolated from:

Ampacity is defined as:

A separate portion of a conduit or tubing system that provides access through a removable cover(s) to the interior of the system at a junction of two or more sections of the system or at a terminal point of the system is defined as a:

A contact device installed at an outlet for the connection of an attachment plug is called:

When an enclosure has been constructed so that exposure to a beating rain will not result in the entrance of water under specified test conditions, the enclosure is known as:

A device that establishes a connection between two or more conductors by means of mechanical pressure and without the use of solder is called:

A dual-voltage three-phase motor draws a current of 45 amperes when connected to a 240volt, three-phase circuit. How much current will the same motor draw if connected to a 480-volt, three-phase circuit?

An industrial building is illuminated with 200 277-volt fluorescent lighting fixtures connected to a 277/480-volt, three-phase, 4-wire, Y-connected supply. If each foxture draws 1.2 amperes at a power factor of 8, what is the total load in amperes per single phase?