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



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