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ETRO Mid Quiz

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

What are the first 2 things you do if you see someone getting shocked?

a)
Try to touch the person to help them.
b)

Turn off the power

c)
Take a video of the incident for social media.
d)
Ensure your safety and call for emergency help.
2.

What part of the atom flows electricity?

a)
Electrons
b)
Nuclei
c)
Neutrons
d)
Protons
3.

What meter on a multimeter is used to measure Voltage?

a)
Current meter (A) on a multimeter
b)
Resistance meter (Ω) on a multimeter
c)
Voltage meter (V) on a multimeter
d)
Frequency meter (Hz) on a multimeter
4.

What does an insulator do?

a)
An insulator conducts electricity efficiently.
b)
An insulator generates heat.
c)
An insulator prevents the flow of electricity or heat.
d)
An insulator enhances the flow of electricity.
5.

Current only flows in a open circuit?

a)

True

b)
False
6.

More resistance reduces the current flowing through the circuit?

a)

True

b)

False

7.

How much voltage is at a normal wall receptacle?

a)
240 volts
b)
12 volts
c)
120 volts
d)
60 volts
8.

A GFCI is used to protect equipment and wires. True/False

a)
True
b)
False
9.

How much current loss makes a GFCI trip?

a)

10 milliamps (mA)

b)

2 milliamps (mA)

c)
15 to 20 milliamps (mA)
d)

5 milliamps (mA)

10.

What do you call a circuit with more than one current path?

a)
Series circuit
b)
Parallel circuit
c)
Closed circuit
d)
Open circuit
11.

Do you measure current in series or parallel?

a)
In series
b)

In parallel

12.

How can you tell which wire is ground?

a)
The ground wire is always insulated in black.
b)
The ground wire is usually bare, green, or green with yellow stripes.
c)
The ground wire is typically thicker than other wires.
d)
The ground wire is usually red or blue.
13.

What is the unit measure for frequency?

a)
Decibels (dB)
b)
Hertz (Hz)
c)
Watts (W)
d)
Joules (J)
14.

Can current exit with out voltage? Yes/NO

a)
Yes
b)
NO
15.

What do you call a circuit with only one path?

a)
Parallel circuit
b)
Series circuit
c)
Open circuit
d)
Short circuit