Quiz about CU4WA2 ENG

Question 1

1. How is electricity produced from a generator motor installed on a dam?

Accepted Answer

D. Flux cutting by the coils found in a generator motor.

Answer

A. Sunlight illumination.

Answer

B. Position of the generator motor in the water dam.

Answer

C. Water pressure is equal to the gravitational pressure of 9.81 ms^-2.

Question 2

2. What is the voltage value used for single-phase residential wiring in Malaysia?

Accepted Answer

B. 240V AC

Answer

A. 24V DC

Answer

C. 100V AC

Answer

D. 110V AC

Question 3

4. What is the unit of current in an electrical circuit or electronic circuit?

Accepted Answer

D. Ampere

Answer

A. Ohm

Answer

B. MPa

Answer

C. Kg/ms^-2

Question 4

5. What materials are used in thermal power stations?

Accepted Answer

C. Coal

Answer

A. Solar

Answer

B. River water

Answer

D. Windmill

Question 5

6. What is the function of kilowatt hour meter?

Accepted Answer

B. Record the amount of electricity used.

Answer

A. Measure the value of current, voltage and resistance.

Answer

C. Distributes electricity to several other circuits.

Answer

D. Disconnects the electricity supply in the event of an overload.

Question 6

7. Which of the following refers to a thermal power station?

I. Using water from dams.

II. Using high pressure air.

III. Releases high pressure steam.

IV. Using fuels such as coal.

Accepted Answer

D. III and IV

Answer

A. I and II

Answer

B. I and III

Answer

C. II and III

Question 7

8. Which of the following is a physical property of a conductor made of copper?

I. Easily broken

II. Easy to bend

III. The price is expensive

IV. Heavier than aluminum

Accepted Answer

D. I, II and IV

Answer

A. I, II, and III

Answer

B. II, III, and IV

Answer

C. I, III, and IV

Question 8

9. What is the name of the electrical symbol like the diagram above?

Accepted Answer

C. 13A Outlet Socket

Answer

A. Neutral Link

Answer

B. Wall Lamp

Answer

D. 15A Outlet Socket

Question 9

10. What is the name of the electrical symbol like the diagram above?

Accepted Answer

B. Three-Core Cable

Answer

A. Three Size Cables

Answer

C. Three-Color Cable

Answer

D. Six-Core Cable

Question 10

13. What is the meaning of electricity generation?

Accepted Answer

C. A device used to convert mechanical energy into electrical energy.

Answer

A. A device used to raise and lower voltage.

Answer

B. A device used to convert alternating current to direct current.

Answer

D. A device used to transmit electrical energy from a pylon tower to an electrical substation

Question 11

14. What type of electricity is produced from a power station?

Accepted Answer

C. Alternating Current

Answer

A. Direct Current

Answer

B. Solar Energy

Answer

D. Light Energy

Question 12

15. Which of the following is a true statement about hydroelectric power stations?

Accepted Answer

B. Using dam water to turn turbine fans and dynamos.

Answer

A. Using lake water to turn the turbine fan and dynamo.

Answer

C. Using high pressure air to rotate the turbine fan and dynamo.

Answer

D. Using fuels such as coal and boilers to turn turbine fans and dynamos.

Question 13

16. What is the name of the electrical cable symbol in the diagram above?

Accepted Answer

D. 1 Core 7 Conductor Cable

Answer

A. 6 Core Cable

Answer

B. 7 Core Cable

Answer

C. 1 Core 5 Conductor Cable

Question 14

17. How does the production of electric current occur as shown in the diagram above?

Accepted Answer

When the conductor is positioned horizontally between the flux lines.

Answer

When the conductor is positioned vertically between the flux lines.

Answer

When no conductive material is used to cut off the flow of flux.

Answer

When there is no magnetic field between the north pole (N) and the south pole (S).

Question 15

18. Which of the following is the stage of electricity supply to consumers?

I. Generation

II. Distribution

III. Delivery

IV. Residential Area

Accepted Answer

A. I, II and III

Answer

B. I, II and IV

Answer

C. I, III and IV

Answer

D. II, III and IV

Question 16

19. What is the 1-phase voltage value used for residential areas in Malaysia?

Accepted Answer

B. 240 VAC

Answer

A. 110 VAC

Answer

C. 405 VAC

Answer

D. 11k VAC

Question 17

20. What is the 3-phase voltage value used for industrial areas in Malaysia?

Accepted Answer

C. 415 VAC

Answer

A. 115 VAC

Answer

B. 250 VAC

Answer

D. 33k VAC

Question 18

21. Based on the diagram above, what is the function of the tool?

Accepted Answer

A. Increase or decrease the voltage value.

Answer

B. Converts direct current to alternating current.

Answer

C. Converts solar light into electrical energy.

Answer

D. Converting 3-phase electrical wiring to 1 phase.

Question 19

22. What is the name of the tool like the diagram above?

Accepted Answer

D. Residual Current Circuit Breaker

Answer

A. Contactor

Answer

B. Main Switch

Answer

C. Miniature Current Circuit Breaker

Question 20

23. What is the name of the tool like the diagram above?

Accepted Answer

D. Analog Multimeter

Answer

A. Micrometer

Answer

B. Clamp Meter

Answer

C. Digital Multimeter

Question 21

24. Select the appropriate voltage scale for the Analog Multimeter to measure a voltage of 240 V.
I. 50 V
II. 100 V
III. 250 V
IV. 1000 V

Accepted Answer

D. III dan IV

Answer

A. I dan III

Answer

B. II dan III

Answer

C. II dan IV

Question 22

25. What is the function of the tool as shown in the diagram above?

Accepted Answer

B. Prevent excessive current from flowing.

Answer

A. Converts alternating current to direct current.

Answer

C. Allows current to flow in one direction only.

Answer

D. Limits the value of voltage flowing in an electrical circuit.

Question 23

26. What is the name of the symbol like the diagram above?

Accepted Answer

D. 15 Ampere Socket

Answer

A. Exhaust Fan

Answer

B. Two-Way Switch

Answer

C. 13 Ampere Socket

Question 24

27. Which of the following is NOT a statement about a conductor made of copper?
I. Easily broken.
II. Expensive price.
III. Lighter than plastic.
IV. Has good electrical conductivity.

Accepted Answer

I and III

Answer

I and II

Answer

II and IV

Answer

III and IV

Question 25

28. Choose the correct statement about the unit of electrical measurement.

I. The unit of measurement for voltage is the volt.

II. The unit of measurement for power is hertz.

III. The unit of measurement for current is the ampere.

IV. The unit of measurement for resistance is ohm.

Accepted Answer

C. I, III and IV

Answer

A. I, II and III

Answer

B. I, II and IV

Answer

D. II, III and IV

Question 26

30. Which of the following is the color of 3-phase electrical wiring in Malaysia?

I. Blue

II. Black

III. Red

IV. Yellow

Accepted Answer

C. I, III and IV

Answer

A. I, II and III

Answer

B. I, II and IV

Answer

D. II, III and IV

Question 27

31. Which of the following is a true statement about the parallel circuit as shown in the diagram above?

I. The values of currents I1 and I2 are the same.

II. The voltage values V1 and V2 are the same.

III. The current values I1 and I2 are not the same.

IV. The voltage values V1 and V2 are not the same.

Accepted Answer

C. II dan III

Answer

A. I dan II

Answer

B. I dan III

Answer

D. III dan IV

Question 28

32. What does short circuit mean?
I. Connection between phase conductor and earth conductor.
II. Junction between phase conductor and neutral conductor.
III. Junction between red phase conductor and blue phase conductor.
IV. Junction between red phase conductor and yellow phase conductor.

Accepted Answer

A. I and II

Answer

B. I and III

Answer

C. II and IV

Answer

D. III and IV

Question 29

33. The supply of electricity to consumers goes through three stages. Which of the following is not one of the three stages?

Accepted Answer

B. Use of electrical energy.

Answer

A. Distribution of electrical energy.

Answer

C. Transmission of electrical energy.

Answer

D. Generation of electricity at power stations.

Question 30

34. Which of the following is not a type of electrical energy generation?

Accepted Answer

C. Agricultural Electricity Generator

Answer

A. Hydroelectric Generator

Answer

B. Thermal Electricity Generator

Answer

D. Gas Turbine Electric Generator

Question 31

35. What is the single-phase voltage value used for residential wiring?

Accepted Answer

C. 240 V AC

Answer

A. 24 V DC

Answer

B. 110 V AC

Answer

D. 415 V AC

Question 32

36. What is the size of the cable used to make electrical wiring for the installation of an air conditioner along with a switch?

Accepted Answer

C. 4.0mm

Answer

A. 1.5mm

Answer

B. 2.5mm

Answer

D. 12.0mm

Question 33

37. What is the current rating of the Miniature Circuit Breaker (MCB) used to install 2 units of 13A sockets in a row?

Accepted Answer

D. MCB 20A

Answer

A. MCB 64A

Answer

B. MCB 12A

Answer

C. MCB 32A

Question 34

38. What is the use of transformers?

Accepted Answer

B. Increase and decrease current only.

Answer

A. Stabilize the voltage.

Answer

C. Store electrical energy.

Answer

D. Measure resistance.

Question 35

39. Based on the two types of graphs as shown in the diagram above, which graph is a direct current graph and what is the name of the component that converts alternating current to direct current?

Accepted Answer

A. Graph A, Rectifier

Answer

B. Graph A, Inverter

Answer

C. Graph B, Rectifier

Answer

D. Graph B, Inverter

Question 36

41. The alternating current voltage value for residential areas in Malaysia is 240 VDC.

Accepted Answer

A. TRUE

Answer

B. FALSE

Question 37

42. Single-phase wiring for residential areas is between the yellow phase and the neutral conductor.

Accepted Answer

FALSE

Answer

TRUE

Question 38

43. The unit of frequency is Hertz.

Accepted Answer

A. TRUE

Answer

B. FALSE

Question 39

44. The alternating current voltage value for industrial areas in Malaysia is 405 VAC.

Accepted Answer

B.FALSE

Answer

A.TRUE

Question 40

45. Contacts for 2-way switches consist of Command (C), Normally Open (NO) and Normally Closed (NC).

Accepted Answer

B. FALSE

Answer

A. TRUE

Question 41

46. A 250 VAC one-way switch has live and neutral polarity.

Accepted Answer

B FALSE

Answer

A. TRUE

Question 42

47. Uses of Pylon towers is to transmit electrical energy from power generating stations to electrical substations.

Accepted Answer

A. TRUE

Answer

B.FALSE

Question 43

47 Function RCCB is to protect humans from being shocked electricity and detect earth leakage.

Accepted Answer

Answer

B. FALSE

Question 44

48.Batteries use alternating current.

Accepted Answer

B. FALSE

Answer

A. TRUE

Question 45

50.1The function of a kilowatt hour meter (kWh Meter) is to record the amount of electrical energy used.

Accepted Answer

A. TRUE

Answer

B. FALSE

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