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Electricity Basics

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

The voltage level received at a typical residence is

a)
12 volts
b)
60 volts
c)
120 volts
d)
240 volts
2.

Wrapping an energized conductor around an iron bar creates an

a)
transformer
b)
inductor
c)
electromagnet
d)
permanent magnet
3.

Tag out requirement requirements are set forth by

a)
EPA (Environmental Protection Agency)
b)
OSHA (Occupational Safety and Health Administration)
c)
NIOSH (National Institute for Occupational Safety and Health)
d)
ANSI (American National Standards Institute)
4.

Which of the following values can be measured by placing a meter in series with an energized load

a)
Current
b)
Power
c)
Resistance
d)
Voltage
5.

Which of these values must measured with power off

a)
Voltage
b)
Current
c)
Frequency
d)

Resistance

6.

A short Circuit is what happens when

a)
a correct path for electrical current that follows the normal circuit.
b)
an unintended path for electrical current that bypasses the normal circuit.
c)
a device that regulates electrical flow in a circuit.
d)
a type of electrical component used to enhance circuit performance.
7.

The path that electricity takes is called the

a)
voltage
b)
battery
c)
wire
d)
circuit
8.

If the electricity leaves it’s intended path it’s called a

a)
overload condition
b)
ground fault
c)
open circuit
d)
short circuit
9.

What is the unit for resistance

a)
Joule
b)
Volt
c)
Ohm
d)
Watt
10.

What is the unit for voltage

a)
Watt
b)
Ohm
c)
Volt
d)
Joule
11.

The measure of the energy available to move electricity is called

a)

volt

b)
power
c)
current
d)
resistance
12.

The flow of electrons in a wire is called

a)
electric field
b)

current

c)
voltage
d)
resistance
13.

The opposition to the flow of electrons is called

a)
Resistance
b)
Capacitance
c)
Current
d)
Voltage
14.

What pushed or makes the electrons move in a current is called the

a)
circuit breaker
b)
resistance
c)
current flow
d)

voltage

15.

Before you start drilling, make sure the drill bit is

a)
dull and too large for the material
b)
rusty and mismatched for the task
c)
designed for woodworking when drilling metal
d)

tightened in the chuck

16.

Drill bits are held in place by

a)
a chuck
b)
a clamp
c)
a collet
d)
a drill sleeve
17.

A pneumatic drill is used

a)
To inflate tires on vehicles.
b)
To cut through metal surfaces.
c)
To mix concrete for construction.
d)

When there is no source of electricity.

18.

Some manufacturers suggest that each time you use a pneumatic nailer, the air inlet needs

a)
Lubricate the air inlet with oil.
b)
Use water to clean the air inlet.
c)

A few drops of oil.

d)
Replace the air inlet every time you use it.
19.
  1. To prevent electric shock, only use tools that have proper:

a)
Plastic casing only
b)
No safety features
c)

Ground fault protection

d)
Low voltage rating
20.

Before you plug any saw into a power source, make sure the

a)
saw is used without safety gear
b)

saw is cleaned before use

c)

power is off

d)
saw is plugged in without checking