Deck 1: General Principles of Motor Control

Question 1

What is a wiring diagram?

Answer 1

A wiring diagram is basically a pictorial representation of the control components with connecting wires.

Question 2

Insurance companies established the ______________________________ organization in an effort to reduce the number of fires caused by electrical equipment.

Answer 2

Underwriters Laboratories
Underwriters Laboratories (UL)
UL

Question 3

High voltage surges are harmless and cannot damage electronic components connected to the power line.

Answer 3

False

Question 4

What is the difference between jogging and inching?

Question 5

Manual control may be accomplished by simply connecting a switch in series with the motor.

Question 6

One of the main considerations when installing a machine is the power source.

Question 7

What does a schematic diagram show?

Question 8

The conductor size, fuse or circuit breaker size, and overload size are generally determined using the ____________________ Code® and/or local codes.

Question 9

The current flow through the MOV is called ____________________ current and is so small that it does not affect the operation of the circuit.

Question 10

With automatic control, an operator has to initiate certain actions.

Question 11

What does Underwriters Laboratories (UL) do?

Question 12

What are manual controllers?

Question 13

Diodes are used to suppress the voltage spikes produced by coils that operate on direct current.

Question 14

Fuses and circuit breakers are generally employed for ____________________ protection.

Question 15

____________________ control is characterized by the use of push buttons, limit switches, pressure switches, and other sensing devices to control the operation of a magnetic contractor or starter.