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Review Elecrical Installations grade 11

Total questions: 20

Worksheet time: 23mins

Name
Class
Date
1.

The flow of electrons across a conductor is also known as:

a)

Electricity

b)

Voltage

c)

Resistance

2.

In an axial resistor with a color combination Red/black/brown/ silver the resistance will be:

a)

2000 + 5 % ohms

b)

2500 + 10 % ohms

c)

200 + 10 % ohms

3.

What is the total resistance in a series circuit with R1 = 12 and R2 = 22 connected to a 24 v power supply?

a)

34 Ω

b)

12 Ω

c)

268 Ω

4.
What is voltage measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
5.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
6.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
7.

Voltage divided by Current

(V / I)

a)

Current

b)

Power

c)

Resistance

d)

Watts

8.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
9.
How many Volts would it take to push 1 Amp through a resistance of 1 Ohm
a)
10 volts
b)
1 volt
c)
48 volts
d)
5 volts
10.

What is the total resistance in a series circuit with R1 = 12 and R2 = 22 connected to a 24 v power supply?

a)

34 Ω

b)

12 Ω

c)

268 Ω

11.

one of the rules of the parallel connection of electronic elements is.

a)

there is only one voltage in the circuit.

b)

there is only one current in the circuit

c)

The resistance is found by adding all resistances in the circuit.

12.

1. A ____________ connection has 2 or more components connected so that there is more than one path for current to flow.

a)

series

b)

parallel

c)

series/parrallel

d)

polarized

13.

What is the equivalent or total resistance (Re) across this circuit?

a)

3 kΩ

b)

10 kΩ

c)

13 kΩ

d)

18 kΩ

14.

The electrolyte used in car battery.

a)

sulfuric acid and water

b)

Nitrogen

c)

Carbon dioxide

15.

batteries are connected in series to...

a)

Control current and voltage

b)

Increase current.

c)

Increase voltage

16.

The main formula for the ohm's law is expressed as:

a)

E = I x R

b)

V = I/R

c)

I = E x R

17.

In the (a)   the total resistance is lower than the lowest resistance in the circuit?

18.

The (a)   in an electrical device the converts Electrical energy into Mechanical energy.

19.

(a)   is an electrical element used to control current through a magnetic field.

20.

(a)   is an electrical element used to control current through a static charge.