101 Basic Series - Module 19 - Post Assessment
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1
The heat surrounding a motor in its given environment is referred to as its _____ temperature.
2
It is impossible to put too much load on a motor so that it will never reach its synchronous speed.
3
hich is NOT a part of a eutectic overload relay?
4
An overload relay provides protection with a current sensing unit in line with the motor, and a mechanism to break the circuit.
5
The speed that a motor is designed to run at is called _____ speed.
6
Ambient-compensated bimetallic elements are used to reduce the effects of environmental heat sensed by the overload relay.
7
In-rush current doesn't cause much effect to circuit breakers or fuses on a motor circuit.
8
A starter is a device that controls the use of electrical power, usually to a motor.
9
A magnetic contactor can be operated remotely without human intervention.
10
Contactors are used to make and break a circuit to a load.
11
fter an overload, the bimetallic strip cools and reshapes itself resetting the contacts.
12
When the coil of a magnetic contactor is de-energized, the magnetic field is broken and the spring forces the contacts apart breaking the circuit.
13
As contacts open and close an electrical arc is created which produces electrical heat.
14
A heater coil converts excess current into ____ which is used to determine whether the motor is in danger.
15
Double break contacts open and close the circuit in two places.
16
A solid state overload relay measures the amount of current or change in ____ to protect a motor from an overload.
17
The control circuit directly operates the _____.
18
In-rush current is the amount of current drawn when a motor is first starting up. This can be ______ times the normal running current draw.
19
Which circuit makes remote operation possible in a starter?
20
This starter type connects the incoming power to the motor, in one direction at one speed, and is the most commonly used type.
 
   



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