WorksheetsSoalan Pendawaian Elektrik
Total questions: 10
Worksheet time: 5mins
What is the standard color for the neutral conductor in a single-phase electrical wiring system in Malaysia?
Red
Blue
Yellow
Green-yellow
What is the main function of the main switch in a single-phase distribution board?
To control only the lights
To disconnect the entire electrical supply
To reduce the supply voltage
To convert alternating current to direct current
What is the nominal voltage of single-phase electrical supply in Malaysia?
110 V
230 V
415 V
500 V
What is the use of PVC insulated copper conductor cable in single-phase wiring?
For high voltage current
For internal house wiring
For long-distance electrical transmission
For earth connection only
What device is used to protect the circuit from overload current?
Voltmeter
MCB
Multimeter
Insulator
What is the function of the green-yellow cable in electrical wiring?
Phase
Neutral
Earth
Voltage level
What type of earthing system is commonly used for single-phase wiring in Malaysia?
TT
TN-S
IT
DC
What equipment is used to detect current leakage to the earth?
MCB
RCD / ELCB
Fuse
MCCB
In wiring work, why is insulation testing of cables necessary?
To ensure the cable does not break
To test the mechanical strength of the cable
To prevent current leakage
To ensure sufficient voltage
What is the first action before starting electrical wiring work?
Install the cable first
Turn off the electrical supply
Check the load connections
Install the MCB
