Question 1

The water pump circuit will cause the pumps to alternate running each time the_________ switch closes.

Accepted Answer

A)  limit 
B)  pressure 
C)  float 
D)  temperature 
A)  limit 
B)  pressure 
C)  float 
D)  temperature B

Question 2

One advantage of PLCs is that any input can be assigned _________contact(s).

Accepted Answer

A)  one 
B)  10 
C)  1000 
D)  any number of 
A)  one 
B)  10 
C)  1000 
D)  any number of D

Question 3

When power is applied to an input, it will cause the contact assigned to that input to _________.

Accepted Answer

A)  activate a push-button 
B)  close 
C)  open 
D)  change state 
A)  activate a push-button 
B)  close 
C)  open 
D)  change state D

Question 4

A PLC assumes inputs to be_________ when a program is loaded into memory.

Accepted Answer

A)  set 
B)  high 
C)  low 
D)  off 
A)  set 
B)  high 
C)  low 
D)  off

Question 5

How are the inputs assigned in the PLC described in this chapter?

Accepted Answer

In this example the on-off switch is ass

Question 6

The_________ input terminal is connected to the neutral or grounded power conductor.

Accepted Answer

A)  common 
B)  L1 
C)  L2 
D)  tenth 
A)  common 
B)  L1 
C)  L2 
D)  tenth

Question 7

How is the operation of motor start coil 1M controlled in the example presented in this chapter?

Accepted Answer

The first step will be to draw a logic d

Question 8

The second step in actualizing a ladder diagram is to add the logic that _________.

Accepted Answer

A)  controls the pump one bypass circuit 
B)  controls motor starter coil 2M 
C)  controls motor starter coil 1M 
D)  controls the pump two bypass circuit 
A)  controls the pump one bypass circuit 
B)  controls motor starter coil 2M 
C)  controls motor starter coil 1M 
D)  controls the pump two bypass circuit

Question 9

In a circuit designed to operate two well pumps, what is the protection mechanism?

Accepted Answer

A)  fuse 
B)  circuit breaker 
C)  ground-fault protector 
D)  branch-circuit protector 
A)  fuse 
B)  circuit breaker 
C)  ground-fault protector 
D)  branch-circuit protector

Question 10

Describe the circuit considered in this chapter.

Accepted Answer

A housing development contains one press

Question 11

Control circuits are generally drawn as standard_________ .

Accepted Answer

A)  logic diagrams 
B)  lines of code 
C)  truth tables 
D)  schematic or ladder diagrams 
A)  logic diagrams 
B)  lines of code 
C)  truth tables 
D)  schematic or ladder diagrams

Question 12

The simplest way to convert a ladder diagram into a _________is to make the changes in stages.

Accepted Answer

A)  logic circuit 
B)  terminal diagram 
C)  schematic 
D)  coil diagram 
A)  logic circuit 
B)  terminal diagram 
C)  schematic 
D)  coil diagram

Question 13

A selector switch can be set to any of _________operating modes.

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
A)  one 
B)  two 
C)  three 
D)  four

Question 14

How are the overload contacts connected in the logic circuit described in this chapter?

Accepted Answer

The normally closed overload contacts fo

Question 15

Before a program can be developed from a ladder diagram, it is first necessary to determine the number of_________ .

Accepted Answer

A)  differential amplifiers 
B)  protection schemes 
C)  input and output devices 
D)  CPUs 
A)  differential amplifiers 
B)  protection schemes 
C)  input and output devices 
D)  CPUs

Question 16

Given that the internal clock that controls the operation of timers operates in 0.1-second intervals, what value do you have to program in order to get a one-second delay from the timer?

Accepted Answer

A)  0.1 
B)  1.0 
C)  10 
D)  100 
A)  0.1 
B)  1.0 
C)  10 
D)  100

Question 17

What rules should be followed when converting a schematic?

Accepted Answer

There are some basic rules that should b

Question 18

A(n) _________occurs when it is possible for one contact to open before another closes or for one contact to close before another opens.

Accepted Answer

A)  bypass 
B)  contact race 
C)  off-delay 
D)  on-delay 
A)  bypass 
B)  contact race 
C)  off-delay 
D)  on-delay

Question 19

In a logic diagram, each line of logic must end with a _________.

Accepted Answer

A)  circuit 
B)  coil 
C)  pump 
D)  switch 
A)  circuit 
B)  coil 
C)  pump 
D)  switch

The water pump circuit will cause the pumps to alternate running each time the_________ switch closes.

One advantage of PLCs is that any input can be assigned _________contact(s).

When power is applied to an input, it will cause the contact assigned to that input to _________.

A PLC assumes inputs to be_________ when a program is loaded into memory.

How are the inputs assigned in the PLC described in this chapter?

The_________ input terminal is connected to the neutral or grounded power conductor.

How is the operation of motor start coil 1M controlled in the example presented in this chapter?

The second step in actualizing a ladder diagram is to add the logic that _________.

In a circuit designed to operate two well pumps, what is the protection mechanism?

Describe the circuit considered in this chapter.

Control circuits are generally drawn as standard_________ .

The simplest way to convert a ladder diagram into a _________is to make the changes in stages.

A selector switch can be set to any of _________operating modes.

How are the overload contacts connected in the logic circuit described in this chapter?

Before a program can be developed from a ladder diagram, it is first necessary to determine the number of_________ .

Given that the internal clock that controls the operation of timers operates in 0.1-second intervals, what value do you have to program in order to get a one-second delay from the timer?

What rules should be followed when converting a schematic?

A(n) _________occurs when it is possible for one contact to open before another closes or for one contact to close before another opens.

In a logic diagram, each line of logic must end with a _________.

Plans and Sitework

The Unit Substation

Feeder Bus System

Panelboards

Trolley Busways

Using Wire Tables and Determining Conductor Sizes

Signaling Systems

Basic Motor Controls

Motors and Controllers

Motor Installation

Power Factor

Ventilating, Air Conditioning, and Other Facilities

System Protection

Lightning Protection

Luminaires

Site Lighting

Programmable Logic Controllers

Fiber Optics

Hazardous Locations

Harmonics

Filters

Exam 18: Developing a Program for a Plc

The water pump circuit will cause the pumps to alternate running each time the_________ switch closes.

One advantage of PLCs is that any input can be assigned _________contact(s).

When power is applied to an input, it will cause the contact assigned to that input to _________.

A PLC assumes inputs to be_________ when a program is loaded into memory.

How are the inputs assigned in the PLC described in this chapter?

The_________ input terminal is connected to the neutral or grounded power conductor.

How is the operation of motor start coil 1M controlled in the example presented in this chapter?

The second step in actualizing a ladder diagram is to add the logic that _________.

In a circuit designed to operate two well pumps, what is the protection mechanism?

Describe the circuit considered in this chapter.

Control circuits are generally drawn as standard_________ .

The simplest way to convert a ladder diagram into a _________is to make the changes in stages.

A selector switch can be set to any of _________operating modes.

How are the overload contacts connected in the logic circuit described in this chapter?

Before a program can be developed from a ladder diagram, it is first necessary to determine the number of_________ .

Given that the internal clock that controls the operation of timers operates in 0.1-second intervals, what value do you have to program in order to get a one-second delay from the timer?

What rules should be followed when converting a schematic?

A(n) _________occurs when it is possible for one contact to open before another closes or for one contact to close before another opens.

In a logic diagram, each line of logic must end with a _________.

Plans and Sitework

The Unit Substation

Feeder Bus System

Panelboards

Trolley Busways

Using Wire Tables and Determining Conductor Sizes

Signaling Systems

Basic Motor Controls

Motors and Controllers

Motor Installation

Power Factor

Ventilating, Air Conditioning, and Other Facilities

System Protection

Lightning Protection

Luminaires

Site Lighting

Programmable Logic Controllers

Fiber Optics

Hazardous Locations

Harmonics

Filters