Deck 22: Installing Control Systems

Question 1

One of the methods for installing control systems involves using a(n) ____________________ to terminate the different control components.

Answer 1

terminal strip

Question 2

Figure 22-1


In the accompanying figure, what happens when the water level begins to rise?

Answer 2

The normally open auxiliary contact connected in parallel with float switch FS2 closes to maintain the circuit when the water level begins to rise and the FS2 contact reopens.

Question 3

Figure 22-1


In the accompanying figure, what do float switches FS1 and FS2 do?

Answer 3

Float switch FS1 senses when the tank is full of water. A second float switch, FS2, mounted close to the bottom of the tank senses when the water level is low.

Question 4

Connecting components to a terminal strip is the more expensive method when it is necessary to troubleshoot the circuit.

Question 5

Components such as float switches and pressure switches will generally be located on tanks.

Question 6

Figure 22-1


In the accompanying figure, two float switches are necessary in this circuit because the tank is to be ____________________.

Question 7

The point-to-point method generally results in a saving of wire.

Question 8

Although connecting components to a terminal strip generally involves using a greater amount of wire, it can be the less expensive method when it is necessary to ____________________ the circuit.

Question 9

When making connections, wire numbers should be placed on the wire at any point of termination.

Question 10

In the ____________________ method, components are connected from one point to another depending on the proximity of one component to another.

Question 11

Why are wiring drawings sometimes misleading?

Question 12

Figure 22-1


In the above figure, the normally open contact of float FS1 is used to prevent the ____________________ from energizing unless the tank is full of water.

Question 13

When connecting a circuit, what are some actions that can be taken to aid in the identification of all the components?

Question 14

Figure 22-1


In the accompanying figure, what happens when the water level drops sufficiently?

Question 15

In the point-to-point method, the connections made inside the MCC are shown with solid lines.