Deck 13: Installing Control Systems and Reading Large Schematic Diagrams

Question 1

Some control components, such as limit switches, photodetectors, or flow switches, may be located on the machine itself, while other components such as control relays and motor starters may be located inside a cabinet.

Answer 1

True

Question 2

Terminal strips are used as connection points between the control wiring inside the cabinet and inputs or outputs to the machine or control panel.

Answer 2

True

Question 3

In the schematic, the connections made inside the MCC are shown with ____ lines.

A) dashed
B) solid
C) wavy
D) slashed

Answer 3

dashed

Question 4

A ____ switch permits power to be supplied to the circuit or not.

A) stop-run
B) float
C) pressure
D) flow

Question 5

____________________ diagrams can be misleading in that they show all components grouped together.

Question 6

What is the primary difference between the point-to-point and terminal strip methods?

Question 7

What is the advantage of connecting components to a terminal strip?

Question 8

The notation (2300V 3 $\theta$ 60 Hz) means that the motor is ____-phase.

A) one
B) three
C) 60
D) 2300

Question 9

What letter indicates a connection between terminals?

A) A
B) F
C) O
D) X

Question 10

Current transformers produce an output current of 5 amperes under a(n) ____________________ condition.

Question 11

A(n) ____________________ box indicates terminal numbers for the relay and these numbers should not be confused with wire numbers.

Question 12

What is the meaning of the notation (200A 5000V DISCONNECT SWITCH)?

Question 13

Why is practice important for reading schematic diagrams?