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Electrical and Resistor Safety Quiz

Total questions: 41

Worksheet time: 21mins

Name
Class
Date
1.

What is the purpose of grounding electrical systems?

a)

To provide a path for current to flow

b)

To protect against electric shocks

c)

To reduce electrical resistance

d)

To increase energy efficiency

2.

Which of the following is a common cause of electrical fires?

a)

Overloading circuits

b)

Proper grounding

c)

Regular maintenance

d)

Low voltage

3.

What is the recommended type of electrical outlets for wet areas?

a)

Ungrounded outlets

b)

GFCI outlets

c)

Surge protected outlets

d)

Three-pronged outlets

4.

What should you do if you experience an electrical shock?

a)

Pour water over the affected area

b)

Apply a burn ointment immediately

c)

Remove the person from the electrical source

d)

Do nothing

5.

What does 'overloading' mean in electrical safety?

a)

Using too many electrical devices simultaneously

b)

Using energy-efficient appliances

c)

Overcharging a battery

d)

Insulating electrical wires

6.

Which is NOT a recommended practice for preventing electrical accidents?

a)

Avoiding extension cords

b)

Regularly inspecting equipment

c)

Using damaged electrical cords

d)

Keeping devices away from water

7.

What does PPE stand for in electrical safety?

a)

Personal Protective Equipment

b)

Proper Power Efficiency

c)

Protective Power Equipment

d)

Professional Protection Evaluation

8.

Which should NOT be used near electrical equipment?

a)

Water

b)

Fire extinguisher

c)

Metal tools

d)

Insulated gloves

9.

Do you want to continue taking the test?

a)

YES

b)

I am very excited about testing

c)

Nope

d)

Happy Holidays

10.

Do you want to continue with the test?

a)

Yes

b)

I am very excited for this test

c)

No. Then stop the test

d)

Happy Holidays.

11.

What is the color coding for the ground wire?

a)

Red

b)

Black

c)

Green

d)

Yellow

12.

What does 'arc flash' refer to?

a)

A type of insulation

b)

A sudden burst of light and heat during a fault

c)

A safety switch

d)

Grounding process

13.

What should be done before working on electrical equipment?

a)

Wear insulated gloves

b)

Use a metal ladder

c)

Keep equipment plugged in

d)

Stand on a wet surface

14.

What is the purpose of a GFCI?

a)

To protect against shocks

b)

To regulate voltage

c)

To increase efficiency

d)

To prevent fires

15.

Which extinguisher is suitable for electrical fires?

a)

Water-based

b)

Foam-based

c)

CO2 extinguisher

d)

Powder extinguisher

16.

What to do with frayed cords?

a)

Continue using

b)

Repair with tape

c)

Replace them

d)

Ignore damage

17.

Which cannot be analyzed using Ohm’s law?

a)

Capacitors

b)

Inductors

c)

Transistors

d)

Resistance

18.

What is constant inside a charged spherical shell?

a)

Potential outside

b)

Potential inside

c)

Field outside

d)

Field inside

19.

Where does electrostatic shielding occur?

a)

Potential outside zero

b)

Potential inside zero

c)

Field outside

d)

Field inside zero

20.

Peak value in AC is?

a)

RMS/Peak factor

b)

RMS * Peak factor

c)

RMS/Form factor

d)

RMS * Form factor

21.

Which is incorrect about AC?

a)

Frequency zero

b)

Magnitude changes

c)

Less power loss over distance

d)

Flows both directions

22.

Cycles in 2s at 100Hz?

a)

50

b)

100

c)

150

d)

200

23.

Drift velocity direction vs electric field?

a)

Same

b)

Opposite

c)

Perpendicular positive

d)

Perpendicular negative

24.

Current density for 30A in 0.5m²?

a)

7.5 A/m²

b)

60 A/m²

c)

15 A/m²

d)

120 A/m²

25.

Electric potential type?

a)

Vector

b)

Scalar

c)

Tensor

d)

Dimensionless

26.

Crowded lines of force indicate?

a)

Strong field

b)

Weak field

c)

Strong potential

d)

Weak potential

27.

In series, larger resistor consumes?

a)

More power

b)

Less power

c)

Same power

d)

Cannot establish

28.

Ohm's law formula?

a)

V = I/R

b)

V = IR

c)

I = V/R

d)

R = I/V

29.

Resistance if V=0.1V, I=2A?

a)

0.05 Ω

b)

0.2 Ω

c)

2 Ω

d)

20 Ω

30.

Two main resistor characteristics?

a)

Resistance and power

b)

Current and power

c)

Current and voltage

d)

Resistance and current

31.

Resistor opposes current via?

a)

Electric resistance

b)

Inductance

c)

Fleming's law

d)

EM law

32.

Ohm's symbol?

a)

Ω

b)

€

c)

β

d)

∑

33.

Fixed resistor color bands?

a)

1

b)

2

c)

3

d)

4

34.

For 5 equal 50Ω resistors in parallel?

a)

250Ω

b)

10Ω

c)

2Ω

d)

50Ω

35.

Ohm's law valid for?

a)

Constant temperature

b)

All temperatures

c)

Non-ohmic only

d)

AC only

36.

Current through conductor proportional to?

a)

Voltage across ends

b)

Resistance

c)

Temperature

d)

Length

37.

Linear resistors change with?

a)

Voltage and temperature

b)

Only voltage

c)

Only temperature

d)

Neither

38.

Who defined electric current?

a)

Faraday

b)

Ampere

c)

Tesla

d)

Volta

39.

Electrons in 2 Coulombs?

a)

6.24e18

b)

12.48e18

c)

1.602e19

d)

3.204e19

40.

DC characteristics?

a)

Magnitude constant

b)

Frequency non-zero

c)

High power loss

d)

Both directions

41.

KCL states algebraic sum zero for?

a)

Currents in loop

b)

Currents at junction

c)

Voltages in loop

d)

Power in loop

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