Deck 14: Control Circuits

Question 1

In the accompanying figure, the push-to-test switch is a two-circuit _______________ push-button.

Answer 1

momentary-contact

Question 2

In the accompanying figure, describe the order, if any, in which the motors start running.

Answer 2

The control circuit shows a control circuit where motor 2 cannot start until motor 1 is running.

Question 3

In the accompanying figure, the control circuit uses a relay in place of auxiliary contacts to operate auxiliary contact-controlled status indicator lamps.

Answer 3

True

Question 4

In the accompanying figure, the contact connected across the jog pushbutton is a(n) _______________.

Question 5

In the accompanying figure, the _______________ circuit uses three momentary contact pushbutton switches.

Question 6

Describe the circuit in the accompanying figure.

Question 7

In the accompanying figure, the pin-out information for the buttons is to the left of the diagram.

Question 8

In the accompanying figure, what is the purpose of the control circuit?

Question 9

In the accompanying figure, all the stop and start pushbuttons must be wired in parallel.

Question 10

In the accompanying figure, the jog circuit uses three momentary contact pushbutton switches, and is considered to be safer than other jog circuits that use only momentary contact switches.

Question 11

Describe the control circuit in the accompanying figure.

Question 12

In the accompanying figure, the control circuit diagram uses an eleven-pin, triangle based ice cube relay.

Question 13

In the accompanying figure, the two-position, two-circuit selector switch allows only one control circuit rung to be _______________ at a time, so simultaneous operation is not possible.

Question 14

A reversing motor starter has four contactors and two control coils.

Question 15

In the accompanying figure, this jog circuit uses two momentary-contact pushbutton switches, and one _______________ switch.

Question 16

In the accompanying figure, what is the purpose of the jog function?

Question 17

Describe the control circuit in the accompanying figure.

Question 18

Describe the control circuit in the accompanying figure.

Question 19

In the accompanying figure, the pressure tank switch pilot device determines when the motor is energized and de-energized by energizing and de-energizing the control coil.

Question 20

In the accompanying figure, what is the purpose of the control circuit?