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Worksheets

2020 Overview

Total questions: 81

Worksheet time: 1hrs 21mins

Name
Class
Date
1.

The _____ consists of the overhead service conductors between the last utility pole and the first point of attachment to the house.

a)

SERVICE HEAD

b)

SERVICE ENTRANCE

c)

SERVICE DROP

d)

SERVICE PANEL

2.

Which of the following statements about lighting circuits is true?

a)

Building codes require a minimum of five watts of lighting power for each square foot of floor space.

b)

Lighting circuits are frequently 14 AWG copper wire conductor.

c)

Outlets for radios and televisions are connected to lighting circuits.

d)

A good rule of thumb is to have one lighting circuit for each 800 square feet of floor space.

3.

All receptacles installed in bathrooms and garages must have GFCI protection.

a)

TRUE

b)

FALSE

4.

When manually drafting an electrical plan, start by tracing the _____ from the floor plan.

a)

exterior walls

b)

interior walls

c)

major appliances

d)

All of the above.

5.
What is the energy involved in spinning?
a)
kinetic
b)
electrical
c)
chemical potential
d)
thermal
6.
Which is the best energy chain for nuclear power plants?
a)
Thermal -> kinetic -> electrical
b)
light -> kinetic -> thermal
c)
thermal -> electrical
d)
light -> kinetic -> electrical
7.
The statement that total current entering a point must equal total current leaving that point best describes?
a)
Ohm's law
b)
Coulomb's total current law
c)
The Theroy of Relativity
d)
Kirchhoff's current law
8.
A circuit in which two or more components are connected equally across the same voltage source is a?
a)
series circuit
b)
parallel circuit
c)
series-parallel circuit
d)
resistive circuit
9.
What does DMM stand for?
a)
Digital Monitor Meter
b)
Digital Multi
Meter
c)
Digital Multi Monitor
d)
Diagonal Mulit Meter
10.
What is this symbol?
a)
Continuity
b)
Capacitor
c)
DC
d)
AC
11.
What is the the most misuse of a Multimeter?
a)
Measure current on the voltage setting
b)
Measuring voltage on the current setting
c)
Measuring Continuity on the resistance setting
d)
Measuring resistance on the Continuity setting
12.

Electrical energy is converted into ________________ in the electric motor of an electric car.

a)

electromagnet

b)

Mechanical energy

c)

controller

d)

electric motor

e)

magnetic force

13.

The filament in a toaster acts like a _________ and changes some of the electrical energy into ___________.

a)

resistor, heat

b)

conductor, heat

c)

battery, light

d)

circuit, light

14.

In a hearing aid, electrical energy is changed into __________.

a)

heat waves

b)

light energy

c)

sound waves

d)

mechanical energy

15.

________________ is a tiny unit of light energy.

a)

photon

b)

resistor

c)

switch

d)

filaments

16.

_____________ is a particle of an atom with a negative charge.

a)

photon

b)

electromagnet

c)

electron

d)

electric current

17.

_____________ is to send out energy in waves or rays.

a)

filaments

b)

resistor

c)

radiate

d)

electromagnet

18.

______________ is a device that converts electric current into sound waves.

a)

microphone

b)

magnetic force

c)

speaker

d)

switch

19.

Which of the following would be the most likely cause of the final light in a lighting circuit not working when the other lights do

a)

Short Circuit at the origin

b)

Open Circuit at the origin

c)

Open circuit in the last leg of the cable

d)

Short Circuit in the last leg of the cable

20.

Which of the following would most likely cause a motor to not work if the circuit is healthy

a)

High resistance joint in the isolator

b)

Equipment malfunction

c)

Too many capacitors causing a leading effect

d)

Lightning strike

21.

Which of the following tests is performed if a broken cable is suspected?

a)

Prospective Fault Current

b)

Insulation Resistance

c)

Continuity of Ring Final Conductors

d)

Earth Fault Loop Impedance

22.
To identify a white conductor as ungrounded
a)
Black tape on one end 
b)
Black tape on both ends
c)
Tie a knot on one end
d)
Use a Blue wire nut
23.
A box must extend from to wall stud to be _______ with the wall covering
a)
Recessed
b)
Behind
c)
Flush
d)
Beyond
24.
Switch boxes are located in the ______ side of a door opening
a)
Hinge side
b)
Latch side
c)
Right side
d)
Left side
25.
No point along the wall should be more ____ feet from a receptacle
a)
4 
b)
6
c)
8
d)
12
26.
Receptacle boxes are usually set ____ inches  above the finished floor
a)
12
b)
24
c)
48
d)
60
27.
Switch boxes are usually set ____ inches above the finished floor
a)
24
b)
36
c)
48
d)
60
28.

Two techs are discussing the electrical circuit in the image. Tech A says that the meter is correctly measuring total circuit current. Tech B says the meter is correctly measuring the amperage for the top bulb only. Who is correct?

a)

Tech A

b)

Tech B

c)

Both Techs

d)

Neither Tech

29.

What is being measured in the image?

a)

Voltage Drop

b)

Total Circuit Resistance

c)

Source Voltage

d)

Current Flow

e)

Nothing Properly

30.

What is being performed in the image.

a)

Current Flow Measurement

b)

Voltage Drop Measurement of the first bulb

c)

Resistance Measurement of the first bulb

d)

Blowing the fuse in the meter

31.

Two techs are discussing the image. Tech A says this is how you measure total circuit resistance. Tech B says this how you measure total circuit current. Who is correct

a)

Tech A

b)

Tech B

c)

Both Techs

d)

Neither Tech

32.

The following statement relates to a central heating programmer

a)

An electronic device used to operate the hot water and central heating both manually and on a timed basis.

b)

An electronic device used to make connections for the system to operate

c)

An electronic device used to operate immersion heaters and storage heaters

d)

An electronic device used to operate and switch between the Economy 7 tariff.

33.

What are the benefits of using underfloor heating

a)

Warm toes and radiant heat

b)

Economical and easy to install

c)

Low running costs and instant heat

d)

Low installation costs and no heat dissipation.

34.
A complete electrical circuit or path through which electricity or current can pass or flow
a)
open circuit
b)
circuit
c)
closed circuit
d)
current
35.
Material that slows down or stops electric current or thermal energy from passing through
a)
flow
b)
open circuit
c)
insulator
d)
conductor
36.

A sudden increase in the total current, in a parallel circuit, as shown below, may indicate:

a)

A short circuit.

b)

A drop in source voltage.

c)

A blown fuse.

d)

An open resistor.

e)

None of these.

37.

When the needle of an analog ohmmeter indicates infinity, the resistor being measured is:

a)

Shorted

b)

Open

c)

Reversed

d)

Overheated

e)

None of these

38.

110 V AC is applied across the primary winding of a transformer. When you check the voltage across the secondary winding, you get 0 V. Further investigation shows no primary or secondary currents. The cause of the malfunction is:

a)

The primary winding is open.

b)

The primary winding is completely shorted

c)

The primary winding is partially shorted

d)

The secondary winding is open

e)

The secondary winding is completely shorted.

39.
How often should I change the batteries in my smoke detector?
a)
When the smoke detector beeps
b)
Twice a year
c)
Once every year
d)
Every four years
40.
How often should I test my smoke detector?
a)
Once a year
b)
Every six months
c)
Once a month
d)
Once every two years
41.
Which should you NOT do if you catch on fire?
a)
Stop
b)
Run
c)
Roll
d)
Drop
42.
What do you do if there is smoke in the room?
a)
Open a window.
b)
Scream.
c)
Stay where you are.
d)
Crawl on the floor to get out.
43.

Which of the following statements is TRUE regarding Emergency Action Plans (EAPs)?

a)

EAPs need to be written down only if requested by employees.

b)

EAPs facilitate and organize actions taken during an emergency.

c)

EAPs have no effect on the number or severity of injuries during and emergency.

d)

EAPs increase confusion due to the number of documents required.

44.

Which of the following elements are required in order for a fire to occur?

a)

Sufficient oxygen, fuel, ignition source, and chemical reaction

b)

Sufficient fuel, carbon dioxide, heat, and chemical reaction

c)

Combustible materials, spark, heat, and mechanical reaction

d)

Smoke, heat, flames, and light reaction

45.

Only those employees who have received training on the use of a fire extinguisher can be authorized to use a fire extinguisher during a workplace fire.

a)

True

b)

False

46.

Trash fires involving paper and wood products are __ fires.

a)

Class A

b)

Class B

c)

Class C

d)

Class D

47.

The P.A.S.S. technique for using a fire extinguisher means ___.

a)

Position, aim, sweep, slowly

b)

Pull, aim, squeeze, sweep

c)

Point, away, side-to-side

d)

Pin, approach, start, stop

48.

At minimum, how often must maintenance checks be performed on portable fire extinguishers?

a)

Once a month

b)

Once a year

c)

Once every two years

d)

Once every five years

49.
Guidelines for talking on the radio include all of the following except:
a)
You cannot use vulgar language
b)
Use a moderate amount of expression in speech 
c)
Keep things such as gum and candy out of the mouth 
d)
Speak at a fast rate in order to get all the message through in the shortest time possible
50.

Primary winding of a transformer is determined by _________.

a)

which winding has more turns

b)

which winding is nearer to the load

c)

which winding is connected to the source

d)

which side has the highest voltage

51.

What type of transformer is used to increase the voltage from power stations.

a)

Step-down transformer

b)

Step-up transformer

52.

Why transformers work with A.C. current but not D.C.

a)

A.C current produces changing magnetic field.

b)

D.C current produces changing magnetic field.

c)

D.C current is weak

d)

A.C current is powerful

53.

Which of the following does not change in a transformer?

a)

Voltage

b)

Current

c)

Power

d)

Frequency

54.

What is the material used for construction of transformer core?

a)

Aluminium

b)

Copper

c)

Silicon steel

d)

Wood

55.

This picture is an example of a ________________.

a)

Motor

b)

Generator

c)

Step-up transformer

d)

Step-down transformer

56.

Ratio of voltages is equal to ratio of _______________________.

a)

number of iron sheets in core

b)

number of coil

c)

number of turns in coil

d)

number of electromagnetic

57.

A transformer has 100 turns in the primary coil and 25 turns in the secondary coil. When a 120 V is applied to the primary coil, what is the voltage in the secondary coil?

a)

480V

b)

30V

c)

20V

d)

450V

58.

The function of a transformer is to ...

a)

raise and lower the apparent power levels

b)

transfer DC voltage from the primary winding to the secondary winding

c)

increase or decrease A.C voltage or A.C current levels

d)

transform mechanical energy into electrical energy

59.

Insulators are put between core lamination ...

a)

to prevent flux leaks to the neighboring steel sheet

b)

to reduce the cross-sectional area of the core

c)

to prevent short circuit in the transformer

d)

to prevent rusting in the lamination

60.

The electrical energy is transferred through the ... in a transformer.

a)

electric field

b)

rotor

c)

air space

d)

magnetic field

61.

The winding wire is coated with varnish so that ...

a)

it can reduce the heat in the transformer

b)

it can reduce the hysteresis loss

c)

it can prevent the wire from rusted

d)

each turn of the winding is insulated from every other turn

62.

A step up transformer _____________.

a)

decreases voltage

b)

decreases current

c)

increases power

d)

increases frequency

63.

All permanent magnets have two

a)

magnetic charges

b)

magnetic fields

c)

magnetic needles

d)

magnetic poles

64.

Like poles on a permanent magnet will

a)

attract each other

b)

repel each other

c)

always interact

d)

point in the same direction

65.

The magnetic field lines around a bar magnet

a)

are perfectly straight

b)

are only perpendicular to the magnet

c)

spread out from one pole and curve around to the other

d)

cross back and forth over one another

66.

Electric currents passing through wires will produce a(n)

a)

solenoid

b)

magnet

c)

magnetic field

d)

insulator

67.

What makes an electromagnet different than a permanent magnet.....select all that apply

a)

it can be turned on and off

b)

it does not need any electricity

c)

its strength can be increased and decreased

d)

its polarity can be reversed

68.

Which way will NOT increase the strength of the magnetic field of an electromagent

a)

increasing the current

b)

using a stronger ferromagnetic core

c)

winding the coils closer together

d)

decreasing the number of loops

69.

What type of current is produced in a battery

a)

induced

b)

magnetic

c)

alternating

d)

direct

70.
These make the connection between pins and connect the flow of executions and data.
a)
Events
b)
Execution Pins
c)
Data Pins
d)
Wires
71.
Site plans are developed using a _______________.
a)
Engineering Scale
b)
Architectural Scale
c)
Civil Scale
d)
Mechanical Scale
72.
An architectural scale is used for creating _____________.
a)
Lesson Plans
b)
Plot Plans
c)
Site Plans
d)
Floor Plans
73.
A structural plan shows _______. 
a)
Layout of electrical wires
b)
Layout of pipes for toilet
c)
Materials to be used for walls
d)
Location of stairwells
74.
A plan used for work with construction on or in the earth is called a _____________ plan.
a)
Architectural
b)
Mechanical
c)
Civil
d)
Landscape
75.
A _________________ , found in the title block, identifies the project.
a)
Scale
b)
Sheet Title
c)
Revision
d)
Company Logo
76.
A title block provides ______.
a)
 information about the wall materials
b)
an explanation of symbols and abbreviations
c)
a limit to the drawing area
d)
information about the structure or assembly of a project
77.
A dimension is a measurement written as  a _________.
a)
Symbol
b)
Letter
c)
Number
d)
Unit
78.
The purpose of grid-lines, on construction drawings, is to 
a)
make it easier to refer to locations 
b)
make it easier to see the blueprint
c)
make it easier to organize drawings
d)
make it easier to line up objects
79.
The following line is used to save space for a drawing. 
a)
Break line
b)
Object Line
c)
Hidden Line
d)
Leader Line
80.

On a 1 inch = 10 feet scale of an engineer's scale a measurement of 1/2 inch would equal;

a)

.5 feet

b)

5 feet

c)

50 feet

d)

1/2 inch

81.
SYMBOL
a)
CONCRETE WALL
b)
BRICK WALL
c)
CONCRETE BLOCK WALL
d)
INSULATION

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