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Week 10 Review

Total questions: 58

Worksheet time: 32mins

Name
Class
Date
1.

LED means

a)

Light Emitting Display

b)

Light Emitting Diode

c)

Laser Emitting Display

d)

Laser Emitting Diode

2.

Semi- conductors are materials which

a)

can conduct current completely

b)

can block current

c)

can conduct current partially

d)

none of these

3.

Electroluminescence is the process of

a)

producing light and heat from current

b)

producing current

c)

producing light from current without heat

d)

producing heat from current

4.

Short leg of LED is

a)

Anode

b)

Cathode

c)

Emitter

d)

Collector

5.

Which switch or switches must be closed to make the lamps light?

a)

only switch 1

b)

only switch 2

c)

switches 1 and 2

6.

What does the electronic schematic symbol shown represent?

a)

light bulb

b)

cell

c)

battery

d)

resistor

7.

What does the electronic schematic symbol shown represent?

a)

Wire

b)

Resistor

c)

Battery

d)

Switch

8.

A Series circuit is shown in the picture. The resistors have values of 3Ω and 6 Ω. The ammeter reading is 0.20 A. Calculate the potential difference across the 6 Ω resistor.

(a)  

9.
Which best describes a simple series circuit?
a)
Electricity flows along one pathway.
b)
The flow of electricity comes from the switch.
c)
Electricity flows along many pathways.
d)
The flow of electricity comes from the light bulb.
10.

Identify what type of circuit is in the picture.

a)

Closed Circuit

b)

Open Circuit

11.
What does this symbol represent?
a)
A switch
b)
A light 
c)
A battery
d)
A splice
12.
Voltage is best described as
a)
The number of electrons in a circuit
b)
Anything that opposes current flow in a circuit
c)
Electrical pressure / Electrical force
d)
Ohms Law
13.
When electrical resistance increases in a circuit, amperage
a)
Increases
b)
Decreases
c)
Remains the same
d)
I'd like to phone a friend
14.

Protons are....

a)

positively charged

b)

neutral

c)

Negatively charged

15.

The relationship between current, resistance and voltage is stated in

a)

Boyle's law

b)

Ohm's law

c)

Current's law

d)

Charge's law

16.
The formula for calculating current is:
a)
I=E/R
b)
R=E/I
c)
I=E*R
d)
W=I*R
17.
A circuit with 12 volts and 4 ohms has a current of ____________.
a)
3 ants
b)
3 voltage drop
c)
3 amps
d)
3 watts
18.
The formula for voltage is:
a)
I=E/R
b)
E=I/R
c)
E=I*R
d)
R=E/I
19.
There is more than one path for current to flow in a _________ circuit.
a)
series
b)
parallel
c)
closed
d)
open
20.
If the source voltage is 18, and the amperage is 3, what is the resistance?
a)
9 ohms
b)
2 ohms
c)
54 ohms
d)
6 ohms
21.
In a 12 volt series circuit with a 4 Ohm, a 3 Ohm, and a 1 Ohm resistor, what is the current?
a)
8 amps
b)
5 amps
c)
4.2 amps
d)
1.5 amps
22.
Which of the following is not a good insulator?
a)
glass
b)
rubber
c)
tin
d)
plastic
23.
In electrical terms, AC stands for
a)
air conditioning
b)
alternating current
c)
altered current
d)
all clear
24.
When you connect the meter in line in a circuit, you are testing ______
a)
Watts
b)
Voltage drop
c)
Resistance
d)
Amperage
25.
When you connect the leads of the meter on either side of a load, you are testing ________.
a)
Voltage Drop
b)
Amperage
c)
Ohms
d)
Current flow
26.
In a parallel circuit, _______ is always the same.
a)
Amperage
b)
resistance
c)
Wattage
d)
Voltage
27.
In a series circuit, _______ stays the same.
a)
Wattage
b)
Voltage
c)
Amperage
d)
Resistance
28.
What is one problem with using a series circuit? 
a)
It has a lot of series. 
b)
If one light goes down, they all go down! 
c)
It doesn't work properly.
d)
There are no problems. 
29.

What is total voltage in a series circuit with voltage drops of 15V, 25V, and 20V is?

a)

20V

b)

60V

c)

120V

d)

180V

30.

What is the function of a switch in a circuit?

a)

To open the circuit.

b)

To close the circuit.

c)

To both open and close the circuit.

d)

To interchange circuits.

31.

What testing device would you use to Check the difference between 2 points?

a)

Voltmeter

b)

Ohmmeter

c)

Ammeter

d)

Labscope

32.

Which statement is correct

a)

Total circuit voltage drop should equal source voltage

b)

Amperage drops after the load device

c)

Resistance increase after the load device

d)

Voltage should drop after a switch

33.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
34.

Which circuit is most likely to conduct electricity?

a)
b)
c)
d)
35.
Which of the following does not effect the resistance in a wire?
a)
temperature
b)
insulation
c)
diameter
d)
material
36.

In the following photo, what type of measurements is being recorded?

a)

current measurement

b)

Voltage measurement

c)

resistance measurement

d)

continuity measurement

37.

In the following photo, what type of measurement is being recorded?

a)

current measurement

b)

voltage measurement

c)

resistance measurement

d)

continuity measurement

38.

5 components of a basic circuit are powersource, protection, control, load, and ________

a)

Battery

b)

Fuse

c)

Wire

d)

Switch

39.
How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor
a)
12 volts
b)
24 volts
c)
1.3333
d)
48 volts
40.

An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. Calculate its resistance.

a)

60Ω

b)

120Ω

c)

180Ω

d)

240Ω

41.

Speakers need a household voltage of 110 V to push a current of 5.5 A through them. What is the

resistance of the speakers?

a)

10Ω

b)

20Ω

c)

30Ω

d)

40Ω

42.

What relationship is defined by Watts law?

a)

Watt’s law defines the relationship between power, amperage, and voltage drop in an electrical circuit. Watts Law also states that the power of an electrical circuit is the product of its voltage and current.

b)

Watt’s law defines the relationship between voltage, current, and resistance in an electrical circuit.

c)

Watts law defines the relationship between the rate at which resistance in a circuit converts electric energy into heat energy.

43.

Automotive batteries have ________ cells?

a)

5

b)

6

c)

12

d)

14

44.

How many volts are in 1 cell of a standard 12 Volt automotive battery?

a)

12

b)

1.2

c)

2.1

d)

21

45.

Battery acid is also referred to as ________.

a)

Electronic Acid

b)

Hydraulic Acid

c)

Battery Juice

d)

Electrolyte

46.

How many volts should a fully charged automotive battery have?

a)

12.6

b)

6.6

c)

24.6

d)

18.6

47.

The gas that surrounds a battery during charging and discharging is explosive.

a)

True

b)

False

48.

Which metal is a battery terminal made of?

a)

Lead

b)

Brass

c)

Aluminum

d)

Steel

49.

Common battery used in conventional vehicles ?

a)

Lithium-Ion (Li-ion) Battery

b)

Lead-Acid Battery

c)

Alkaline battery

d)

Zinc Acid Battery

50.

What does CCA stands in battery technology ?

a)

car cranking actuation

b)

cold cranking amps

c)

car cranking amps

d)

cold cranking actuation

51.

RC stands for?

a)

Real capacity

b)

Reserve capacity

c)

Red Connector

d)

Really Cold

52.

A battery's length, width, height, and terminal location refer to its?

a)

Dimensions

b)

Group

c)

Area

d)

Fitment

53.

Which switch or switches must be closed to make the lamps light?

a)

only switch 1

b)

only switch 2

c)

switches 1 and 2

54.

What does the electronic schematic symbol shown represent?

a)

light bulb

b)

cell

c)

battery

d)

resistor

55.
When the component is isolated from power, you are testing:
a)
current
b)
voltage drop
c)
power 
d)
resistance
56.
Which of the following does not effect the resistance in a wire?
a)
temperature
b)
insulation
c)
diameter
d)
material
57.

Factors Controlling Resistance _______________

a)

DC

b)

Material

c)

Ac

d)

Temperature

58.

A voltmeter must always be

connected in ________ with the circuit or load

a)

Parallel

b)

Series

c)

Downstream

d)

Upstream

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