Final Quiz ESE Hibiscus AUG25

When a live and neutral conductor touches each other, this condition is known as

• earth fault.
• short circuit fault.
• earth leakage.
• overloading.

By wiring regulation, the rating of residual current circuit breaker (RCCB) for electrical equipment installed in wet areas and public area used to protect children is

• 10 mA.
• 30 mA.
• 100 mA.
• 300 mA

Which of these following steps is the first action before de-energizing

• Check for supply voltage using a voltmeter.
• Switch on the power upon checking that everything is safe.
• Remove the cut off fuse from the main busbar.
• Issue a work permit and switching procedure

An electrical tool is powered using 50 V AC source and equipped without earth conductor. The category of this protection is known as

• Protective extra low voltage (PELV).
• Functional extra low voltage (FELV).
• Separated extra low voltage (SELV).
• Limitation of discharge energy.

A protection device send signal to circuit breaker to trip. This device is

• Protective relays.
• Switch fuse.
• RCD.
• Isolator.

Which of the following statements is NOT true about a fundamental safety requirement

• All cables must have sufficient size and ampere rating.
• All metalwork’s (expose and extraneous) must be bonded together and connected to earth.
• All equipment and installation must be provided with overcurrent protection devices.
• Switches and fuses can be located or installed in all wires including earth wire.

The IEE regulation is applied to

• all electrical jobs using a low voltage.
• all electrical jobs using an extra low voltage.
• the design, selection, erection, inspection and testing of electrical installation using a low voltage.
• the design, selection, erection, inspection and testing of electrical installation using a high voltage

What is the basic requirement of a fire triangle

• Fuel, nitrogen and ignition.
• Air, fuel and combustible substance.
• Hydrogen, fuel and combustible substance.
• Fuel, oxygen and ignition

This document is used as a main document in production of the electrical regulation. This document is

• National Electrical Codes (NEC).
• Institution of Electrical Engineers (IEE).
• International Electrotechnical Committee (IEC 364).
• Malaysian Electricity Regulation 1994.

Which of the following procedures is NOT true about limiting the amount of electrical shock.

• Increase the body resistance.
• Using extra low voltage supply system
• Limit the length of time.
• Size of the human body