Chapter 6 Mechanical Input Control Devices

Question 1

Legend plate

Answer 1

Indicate operations such as start, stop, jog, up, down, on, off, reset and run

Question 2

Operator

Answer 2

Device that is pressed pulled or rotated by individual operating the circuit

Question 3

Contact block

Answer 3

Part of push button that is activated when operator is pressed

Question 4

Selector switch

Answer 4

Switch with an operator that is rotated to activate the electrical contacts

Question 5

Joystick

Answer 5

Operator that selects 1 to 8 different circuit conditions when joystick is shifted

Question 6

Limit switch

Answer 6

Mechanical input that requires physical contact of the object with the switch actuator

Question 7

Actuator

Answer 7

device that converts energy into physical motion to control or move a system.

Question 8

The basic actuators used on limit switches

Answer 8

Lever
Fork lever
Push roller
Wobble stick

Question 9

Pressure switch

Answer 9

Switch that detects set of amount force and activates electrical contacts

Question 10

Deadband

Answer 10

Amount of pressure that must be removed before the switch contacts

Question 11

Temperature switch

Answer 11

Control device that reacts to heat intensity

Question 12

Flow switch

Answer 12

Control switch that detects movement of fluid

Question 13

Float/Level switch

Answer 13

Switch that detects the height of a liquid or solid

Question 14

Types of level switches

Answer 14

Mechanical
Magnetic
Conductive probe
Capacitive
Optical
Ultrasonic