Exam 1: General Principles of Motor Control, Symbols and Schematic Diagrams

arrow
  • Select Tags
search iconSearch Question
  • Select Tags

The most complicated method of starting a motor is across-the-line starting.

Free
(True/False)
4.9/5
(40)
Correct Answer:
Verified

False

Fuses and circuit breakers are generally employed for circuit protection, and ____ are used to protect the motor.

Free
(Multiple Choice)
4.9/5
(46)
Correct Answer:
Verified

D

What are lighted push buttons?

Free
(Essay)
4.8/5
(30)
Correct Answer:
Verified

Lighted push buttons are an example of providing a second function in a single space. They are generally used to indicate that a motor is running, stopped, or tripped on overload. Most lighted push buttons are equipped with a small transformer to reduce the control voltage to a much lower value. Lens caps of different colors are available.

Discuss operator safety and control systems.

(Essay)
4.7/5
(40)

Push buttons that contain multiple contacts are often called ____ push buttons.

(Multiple Choice)
4.8/5
(30)

The symbol for a float switch illustrates a ball float. It is drawn by adding a ____ to a line.

(Multiple Choice)
4.8/5
(33)

Motor control systems can be divided into three major types: ____________________, semiautomatic, and automatic.

(Short Answer)
4.8/5
(34)

Push buttons are always shown as normally open.

(True/False)
4.8/5
(48)

When a machine is installed, the motor, machine, and controls are all interrelated and must be considered as a unit.

(True/False)
4.7/5
(31)

The conductor size, fuse or circuit breaker size, and overload size are generally determined using the ____.

(Multiple Choice)
4.9/5
(41)

What are the similarities and differences between automatic and semiautomatic control?

(Essay)
4.9/5
(36)
close modal

Filters

  • Essay(0)
  • Multiple Choice(0)
  • Short Answer(0)
  • True False(0)
  • Matching(0)