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Module 11-18

Total questions: 100

Worksheet time: 3600secs

Name
Class
Date
1.

Transmitter outputs are wired to the monitoring or control device's analog inputs using ____ Twisted pair cable _____

a)

shielded, conductors

b)

unshielded, insulators

c)

coaxial, fibers

d)

fiber optic, wires

2.

Network switches are small hardware devices that join multiple devices together within one local area _____

a)

network

b)

device

c)

protocol

d)

server

3.

Pulling forces greater than ___ pounds can stretch Ethernet cable, affecting electrical and communication characteristics.

a)

25

b)

10

c)

50

d)

100

4.

Electrical potential differences can lead to unwanted currents on system data cables.

a)

unwanted

b)

desired

c)

regulated

d)

stable

5.

The cut, crimp and strip tool's Round jacket stripper cuts and removes Ethernet cable jacket, leaving wires and insulation

a)

intact

b)

exposed

c)

damaged

d)

removed

6.

A(n) ____ Enclosure panel provides additional environmental and noise protection for the transmitter, its terminals, and their field and controller connections.

a)

metal

b)

plastic

c)

wooden

d)

glass

7.

Thermocouples often come with short leads, less than ___ m or 36 inches.

a)

1

b)

2

c)

5

d)

10

8.

HMI manufacturers provide mounting ___ or templates in their installation materials.

a)

drawings

b)

labels

c)

switches

d)

cables

9.

1- Current is measured in units of ____ Amps _____.

a)

Amperes (A)

b)

Volts (V)

c)

Ohms (Ω)

d)

Watts (W)

10.

To measure current through a component, the ammeter must be connected ______ In series with ____ the component.

a)

in series, with

b)

in parallel, to

c)

in parallel, with

d)

in series, to

11.

The units of measurement for voltage is the ____ Volt _____.

a)

Volt (V)

b)

Ampere (A)

c)

Ohm (Ω)

d)

Watt (W)

12.

4- A(n) _ _ is a measurement device specifically used to measure only voltage.

a)

Voltmeter

b)

Ammeter

c)

Ohmmeter

d)

Thermometer

13.

5- A _ Series _ circuit is one in which there is only one path for current to travel.

a)

Series

b)

Parallel

c)

Open

d)

Closed

14.

6- Resistance is measured in units of ___.

a)

Ohms (Ω)

b)

Amperes (A)

c)

Volts (V)

d)

Watts (W)

15.

7- Current in a(n) _ _ circuit is divided among the branches of the circuit.

a)

Parallel

b)

Series

c)

Closed

d)

Open

16.

A known reference point in an electrical circuit is called a _.

a)

Common

b)

Load

c)

Switch

d)

Resistor

17.

A multimeter is a multipurpose device that can measure _.

a)

Voltage, current, and resistance

b)

Temperature, humidity, and pressure

c)

Speed, distance, and time

d)

Weight, mass, and volume

18.

A(n) ___ ____ is used to measure resistance.

a)

Ohmmeter

b)

Voltmeter

c)

Ammeter

d)

Thermometer

19.

Which of the following statements is not true about measuring the resistance of a component that is connected in a circuit? Turn off the power supply. Disconnect one of the component leads from the circuit. Connect the leads across the component.

a)

Make sure the power supply is on.

b)

Turn off the power supply.

c)

Disconnect one of the component leads from the circuit.

d)

Connect the leads across the component.

20.

12- An ammeter is used to measure ________

a)

Current

b)

Voltage

c)

Resistance

d)

Power

21.

In Parallel circuit, the voltage available to each branch is equal to the source voltage.

a)

The voltage available to each branch is equal to the source voltage.

b)

The voltage available to each branch is half the source voltage.

c)

The voltage available to each branch is double the source voltage.

d)

The voltage available to each branch is zero.

22.

If a wire has continuity, it _

a)

Will have almost no resistance

b)

Will have a high voltage drop

c)

Will not conduct electricity

d)

Will be broken

23.

15- When loads are connected in series, their individual resistances are _ _.

a)

Added

b)

Divided

c)

Multiplied

d)

Subtracted

24.

Which of the following is a formula for calculating power?

a)

P = I × E

b)

P = I + E

c)

P = I / E

d)

P = E / I

25.

Kirchoff's Voltage Law for a series circuit says that the total voltage is equal to _

a)

The sum of the voltage drops

b)

The product of the resistances

c)

The difference between current and resistance

d)

The sum of the currents

26.

The Ohm's Law formula for calculating voltage is _____ _____.

a)

E = I × R

b)

E = R ÷ I

c)

E = I ÷ R

d)

E = R × I

27.

To find the total resistance in a series circuit

a)

Add the individual resistances

b)

Multiply the individual resistances

c)

Divide the largest resistance by the smallest

d)

Subtract the smallest resistance from the largest

28.

Which of the following is a formula for calculating total resistance in a parallel circuit?

a)

RT= R1 + R2 + R3

b)

RT= R1 * R2 * R3

c)

RT= 1/(1/R1 + 1/R2 + 1/R3)

d)

RT= R1/R2 + R2/R3 + R1/R3

29.

The measure of energy consumed by a circuit is called _.

a)

Power

b)

Voltage

c)

Resistance

d)

Current

30.

Which of the following is a type of circuit protection device?

(a)  

31.

The difference between a fuse and a circuit breaker is

a)

Circuit breakers can be reset and used again

b)

Fuses are more expensive than circuit breakers

c)

Circuit breakers are used only in automobiles

d)

Fuses can be reset after blowing

32.

When the wire or foil strip inside a fuse melts, the fuse is said to be _ _.

a)

Blown

b)

Charged

c)

Reversed

d)

Insulated

33.

The current that flows from and back to the power supply in a parallel circuit is called ______ current.

a)

Main line current

b)

Branch current

c)

Load current

d)

Neutral current

34.

Which of the following is a type of capacitor?

a)

Electrolytic

b)

Nonpolarized

c)

Variable

d)

All of the above

35.

The apparent resistance to AC by a capacitor is called _ _.

a)

Capacitive reactance

b)

Inductive reactance

c)

Impedance

d)

Conductance

36.

3- The energy stored by a capacitor is called a(n) _.

a)

Electrostatic charge

b)

Magnetic field

c)

Thermal energy

d)

Kinetic energy

37.

Which of the following is the correct formula for calculating total parallel inductive reactance in a parallel circuit?

4 lines
38.

5- Inductance is measured in _____ .

a)

Henrys

b)

Watts

c)

Ohms

d)

Farads

39.

The concept of a magnetic field being formed around a conductor when current flows through it is called _____.

a)

Electromagnetism

b)

Electrolysis

c)

Thermodynamics

d)

Photoelectric effect

40.

The formula for calculating total parallel capacitance is __ __.

a)

CT = C1 + C2 + C3...

b)

CT = 1/(C1 + C2 + C3...)

c)

CT = C1 × C2 × C3...

d)

CT = 1/C1 + 1/C2 + 1/C3...

41.

In a power supply that converts an AC input to generate a DC output, a capacitor is commonly used to _.

a)

Filter the rectifier's pulsating DC output

b)

Increase the AC input voltage

c)

Convert DC back to AC

d)

Act as a fuse in the circuit

42.

Which of the following is not an example of an electromagnetic device?

a)

Solenoid

b)

Relay

c)

Resistor

d)

Motor

43.

10- _____ Inductance ____ affects a DC circuit only when the current is first turned on, turned off, or when there is a change in the load resistance.

a)

Inductance

b)

Capacitance

c)

Resistance

d)

Conductance

44.

11- Capacitance is measured in _.

a)

Farads

b)

Ohms

c)

Henries

d)

Watts

45.

The resistance provided by an inductor in an AC circuit is called _.

a)

Inductive reactance

b)

Capacitive reactance

c)

Impedance

d)

Conductance

46.

A coil that opposes any change in current flow is called a(n) _.

a)

Inductor

b)

Capacitor

c)

Resistor

d)

Transformer

47.

Which of the following is the total series capacitive reactance formula?

4 lines
48.

One of the effects a capacitor has in a DC circuit is that it will ____ .

a)

Charge to a voltage equal to the source voltage

b)

Continuously allow current to flow

c)

Decrease the source voltage to zero

d)

Act as a short circuit indefinitely

49.

16- A common inductor found in fluorescent light fixtures is a __.

a)

Ballast

b)

Resistor

c)

Capacitor

d)

Transformer

50.

A time-delay relay that uses an RC timing circuit is called a(n) _._

a)

Solid-state, time-delay relay

b)

Thermal overload relay

c)

Electromechanical relay

d)

Reed relay

51.

Which of the following is the correct formula for calculating total series inductance?

a)

LT = L1 + L2 + L3...

b)

LT = L1 * L2 * L3...

c)

LT = L1 - L2 - L3...

d)

LT = L1 / L2 / L3...

52.

A short circuit in the branch of a parallel circuit will ____.

a)

Cause an excessive amount of current to flow

b)

Damage or destroy the power supply

c)

Cause a short circuit across the power supply

d)
All of the above
53.

What is the result when a branch of a parallel circuit has an open?

a)

The rest of the circuit will operate but with a reduced total current.

b)

The entire circuit will stop working.

c)

All branches will have increased current.

d)

The voltage across all branches will become zero.

54.

In order for a firm voltage divider to operate properly, the load resistance value should be at least ___ times greater than resistance value of the voltage divider bleeder resistor.

a)

10

b)

2

c)

5

d)

20

55.

Which of the following is not one of the seven general steps for solving a combination circuit?

4 lines
56.

Which of the following is NOT a step for troubleshooting a parallel circuit to find a short?

a)

Disconnect the power supply.

b)

Look for visible signs of damage.

c)

Connect an ohmmeter across the main line.

d)

All of the above

e)

None of the above

57.

In a series-parallel circuit, components that are connected in parallel will display characteristics of a(n) ___.

a)

Parallel circuit

b)

Series circuit

c)

Open circuit

d)

Short circuit

58.

A variable resistor is different from a fixed resistor because it _

a)

Can be adjusted

b)

Has a constant value

c)

Is always larger in size

d)

Only works with AC current

59.

Which of the following is an application of a combination circuit?

a)

Commercial building's lights

b)

Electrical outlets controlled by a switch

c)

Ceiling fan control

d)

All of the above

60.

In order to identify the series and parallel sections of a combination circuit,

a)

Trace the current path

b)

Check the voltage at each node

c)

Count the number of resistors

d)

Measure the total resistance

61.

A circuit that uses resistors to produce a voltage that is lower than the source voltage is called a _____.

a)

Voltage divider

b)

Current amplifier

c)

Rectifier

d)

Oscillator

62.

Which of the following is an application of a variable resistor?

a)

Motor speed control

b)

Volume control

c)

Rotary timer switch

d)

All of the above

e)

None of the above

63.

Which of the following is not a component of a transformer?

a)

Plate

b)

Secondary

c)

Primary

d)

Core

64.

Which of the categories of transformers uses only one coil for the primary and secondary?

a)

Autotransformer

b)

Isolation transformer

c)

Step-up transformer

d)

Instrument transformer

65.

The current load of a transformer is the current drawn by the _ _.

a)

Primary Winding itself

b)

Secondary Winding itself

c)

Transformer Core

d)

Magnetic Field

66.

A Transformer is an electrical device that

a)

Converts AC electricity from one voltage level to another

b)

Stores electrical energy in the form of chemical energy

c)

Generates electricity from mechanical energy

d)

Measures electrical resistance

67.

Which of the following is a method to troubleshoot a transformer?

a)

Measuring the continuity of the coils

b)

Painting the transformer casing

c)

Increasing the input voltage beyond rating

d)

Removing the transformer core

68.

A common application of a center tap on the secondary of a transformer is a(n) ________.

a)

Distribution transformer

b)

Isolation transformer

c)

Autotransformer

d)

Instrument transformer

69.

Which type of transformer is commonly used to reduce line voltages of 240 VAC or 480 VAC to 120 VAC?

a)

Control transformer

b)

Isolation transformer

c)

Current transformer

d)

Potential transformer

70.

In order to calculate the output voltage of a transformer, divide the input voltage by the ________.

a)

Turns ratio

b)

Current rating

c)

Power factor

d)

Frequency

71.

The power relationship on a transformer states that

a)

Power in = power out + loss

b)

Power in = power out - loss

c)

Power in = power out x loss

d)

Power in = power out / loss

72.

Transformers are usually rated in units called _____ ____.

a)

Volt Amperes (VA)

b)

Watt Hours (Wh)

c)

Joules (J)

d)

Ohm Meters (Ω·m)

73.

A common application of mutual inductance is found in a device called a __.

a)

Transformer

b)

Resistor

c)

Capacitor

d)

Diode

74.

Which of the following is an element of control logic?

a)

NOR

b)

AND

c)

NOT

d)

All of the above

75.

2- NOT logic is formed by ______. One normally closed switch ____.

a)

One normally closed switch

b)

One normally open switch

c)

Two normally closed switches

d)

Two normally open switches

76.

Which one of the following logic elements describes a circuit with two normally open switches in series?

(a)  

77.

A power diagram is needed with a ladder diagram to __________.

a)

Determine the power device operation when the output is energized.

b)

Show the physical layout of the control panel.

c)

Indicate the color codes of wires used.

d)

Display the sequence of operations in a process.

78.

Which of the following is a rule for drawing a ladder diagram?

a)

Label all components.

b)

Number all rungs.

c)

Use only one load per line.

d)

All of the above

79.

Which type of logic element uses a control relay?

(a)  

80.

Which device provides the means by which electrical circuits control pneumatic or hydraulic systems?

4 lines
81.

Devices called Relays often serve as the brains of an automated machine.

a)

Relays

b)

Motors

c)

Sensors

d)

Valves

82.

Which of the following is not a component of a ladder diagram?

a)

Input device

b)

Output device

c)

Conductors

d)

Valve

83.

10- OR logic is formed by __

a)

Two normally open switches in parallel

b)

Two normally closed switches in series

c)

One normally open and one normally closed switch in series

d)

Two normally open switches in series

84.

Which of the following logic elements describes two or more normally closed switches in parallel?

a)

NAND

b)

AND

c)

OR

d)

NOR

85.

Which of the following elements describes two or more normally closed switches in series?

a)

NOR

b)

AND

c)

NAND

d)

OR

86.

Which of the following statements is not true of a ladder diagram?

a)

It can have more than one output device on each rung

b)

It is used to represent electrical control circuits

c)

It uses standard symbols for devices

d)

It is read from left to right and top to bottom

87.

14- Which of the following shows the connections for power devices?

a)

Power diagram

b)

Wiring schedule

c)

Load chart

d)

Control circuit

88.

A control circuit that uses limit switches to sequence a series of events is called a(n) _______ .

a)

Event sequencing circuit

b)

Power distribution circuit

c)

Overload protection circuit

d)

Motor starter circuit

89.

Which of the following is not a component of a limit switch?

a)

Actuating mechanism

b)

Optical sensor

c)

Contacts

90.

Which of the following is a function of a safety interlock switch?

a)

It stops the machine if the guard is removed.

b)

It prevents machine startup if the guard is not in place.

c)

It keeps the operator from moving machinery parts.

d)

All of the above

91.

A circuit designed to turn off an output after a step is performed is called a(n) ______.

a)

Event de-energizing circuit

b)

Holding circuit

c)

Latching relay

d)

Time delay relay

92.

Which of the following is not a component of a relay?

a)

Coil

b)

Contacts

c)

Valve

d)

Spring

93.

Which of the following statements describes a limit switch?

a)

It is a switch used to sense the position of a machine member.

b)

It is a simple, low in cost, reliable device.

c)

It is the most frequently-used input device on automatic machines.

d)

All of the above

94.

An example of memory logic by a control relay is ___________.

a)

Seal-in circuit

b)

Overload relay

c)

Time delay relay

d)

Limit switch

95.

An example of a manually operated single-cycle reciprocation circuit is a _.

a)

Punch Press

b)

Lathe Machine

c)

Drilling Machine

d)

Conveyor Belt

96.

Which of the following is an application of a relay?

a)

Performing control logic

b)

Seal-in circuit

c)

Energizing a fluidpower valve solenoid

d)

All of the above

97.

It is standard practice in industry to carry the flow of electricity to a solenoid through ______.

a)

Relay contacts

b)

Fuses

c)

Resistors

d)

Transformers

98.

Turning outputs on or off through relay contacts is called ________.

a)

Control logic

b)

Power supply

c)

Signal wiring

d)

Load balancing

99.

Fully automated machines require a _____ .

a)

Continuous-cycle reciprocation

b)

Manual override

c)

Periodic shutdown

d)

Randomized input

100.

One method of de-energizing a seal-in circuit is to use _____ .

a)

A stop pushbutton

b)

A fuse

c)

A relay coil

d)

A light bulb

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