State two types of speed sensors, and explain the basic operation of each. Draw the electrical symbol used to represent each of the following PlC output control devices: a. Pilot light b. Relay c....

State two types of speed sensors, and explain the basic operation of each.

Draw the electrical symbol used to represent each of the following PlC output control

devices:

a. Pilot light

b. Relay

c. Motor starter coil

d. Ol relay contact

e. Alarm

f. Heater

g_ Solenoid

h. Solenoid valve

i. Motor

j. Horn