430

starting current

the motor branch circuit short-circuit and ground-fault protective device shall be capable of carrying what current of the motor?

7

torque requirements for motor control circuit device terminals Shall be a minimum of how many pounds. ? )Unless otherwise identified for) screw type pressure terminals used for 14 AWG and smaller copper conductors.

true

true or false, where the motor short-circuit and ground-fault protection devices determined by table 430.52 do not correspond to the standard sizes or ratings, a higher rating that does not exceed the next higher standard ampere rating shall be permitted?

short circuit, ground fault, motor overload.

A motor can be provided with combined overcurrent protection using a single protective device to provide branch circuit [_____] protection where the rating of the device provides the overload protection specified in 430.32.

25 ft

Feeder tap conductors supplying motor circuits with an ampacity at least one-third that of the feeder, shall not exceed how many feet in length?

not greater than the largest rating or setting of

a feeder supplying the fixed motor loads shall have a protective device with a rating or setting [_____] branch-circuit short-circuit and ground-fault protective device for any motor in the group, plus the sum of the full loads currents of the other Motors of the group.

molded case circuit breaker, motor circuit switch rated in Horsepower, molded case switch.

a motor disconnecting means can be listed as what?

plainly indicate

The motor disconnecting means for a motor shall do what weather it is in the open or closed position?

3

Unless overload protection is provided by other approved means, the minimum number of overload units required for a three-phase alternating current motor is what?

attachment plug and receptacle, and flanged surface Inlet and cord connector

What horsepower rated equipment having a horsepower rating not less than the motor rating shall be permitted to serve as the disconnecting means?

ventilation

Motors shall be located so that adequate [_____] is provided. And so that maintenance, such as lubrication of bearings and replacing of brushes, can be readily accomplished.

NEC table

for general motor applications, the motor branch circuit short-circuit and ground-fault protection device shall be sized based on what values?

250%

The maximum rating or setting of an inverse time breaker used as the motor branch circuit short-circuit and ground-fault protective device for single phase motor is what percent of the full load current given in table 413.248?

full load

The motor [_____] currents listed in tables 430.247 through 430.250 shall be used to determine the ampacity of motor circuit conductors and short-circuit and ground-fault protective devices. .

true

True or false, each motor shall be provided with an individual controller?

true

True or false, where more than one motor disconnecting means is provided in the same motor branch circuit, At least one of the disconnecting means shall be readily accessible?

a disconnecting means

What shall be located in sight from the motor location and the driven Machinery location?

The controller disconnecting means is lockable, disconnecting means within sight is Impractical, introduces additional or increased hazards to people are property.

The motor disconnecting means shall not be required to be in sight from the motor and the driven Machinery location, provided what?

400%

Overcurrent protection for motor control circuit shall not exceed what percent if the conductor is based on table 310.15 (B)(17) and does not extend beyond the motor control equipment. Enclosure?

on wooden floors

Open motors having commutators or collector rings. Shall be located or protected so that Sparks cannot reach adjacent combustible material. They shall not prohibit the installation of these motors on what?

Excessive heating due to motor overloads and failures to start.

Overload devices are intended to protect motors, motor control apparatus, and motor branch circuit conductors against what?

false (430.84)

True or false, a motor controller shall open all conductors to the motor where not used as a disconnecting means?

125%

Conductors supplying several Motors shall not be sized smaller than [_____] percent of the full load current rating of the highest rated Motor, Plus the sum of the full load current rating of all other Motors in the group, plus the ampacity of the loads.

tables 430.247, 430.248, 430.249, and 430.250

In determining the highest rated motor for purposes of complying with 430.24, 430.53B, and 430.53 C, The highest rated motor shall be based on the rated full load current as selected From what?

500%

Motor control circuit Transformers, with a primary current rating of less than 2Amps, can have a primary protection device set at no more than what percent of the rated primary current rating?

true

True or false motor control circuits shall be arranged, so they will be disconnected from all sources of supply when the disconnecting means is in the open position?

300%

Motor control circuit conductors that extend beyond the motor control equipment enclosure shall have a short-circuit and ground-fault protection sized not greater than what percent of the value specified in table. 310.15(B)(16) for 60 C conductors?