WorksheetsQuiz on Single-Phase Incoming Supply and Electrical Regulations
Total questions: 18
Worksheet time: 9mins
What is the height range for a meter board above ground level?
0.5 m to 1.5 m
2 m to 2.5 m
1 m to 1.8 m
1.5 m to 2 m
Which device is used for overcurrent protection in a supply intake?
Energy Meter
Miniature Circuit Breaker
Service Circuit Breaker
Residual Current Circuit Breaker
What is the purpose of a kWh meter?
To measure voltage
To register energy consumption
To isolate circuits
To protect against overcurrent
What type of circuit breaker is used to disconnect the circuit when there is an imbalance?
Energy Meter
Residual Current Circuit Breaker
Service Circuit Breaker
Miniature Circuit Breaker
What is the maximum rating for a consumer unit's miniature circuit breakers for lighting circuits?
32 A
10 A
16 A
20 A
What is the role of a surge arrestor in a consumer unit?
To measure energy consumption
To protect against overvoltages
To provide lighting
To isolate circuits
Which authority regulates the electricity and gas industry in Singapore?
Energy Market Authority
Power Supply Ltd
Electricity Board
Ministry of Trade and Industry
What is the purpose of the Electricity Act in Singapore?
To regulate water supply
To create a competitive market framework for electricity
To manage gas prices
To oversee telecommunications
What is the minimum requirement for electrical installations in Singapore?
To be installed by any technician
To comply with the Electricity Act
To be completed within a week
To be done without a license
What is the maximum kVA rating for an electrician under the Licensed Electrical Workers regulations?
45 kVA
150 kVA
500 kVA
No limit
What must be done before commencing any earth works at a worksite?
Hire a licensed electrician
Perform cable detection work
Obtain a permit
Install new wiring
What is the purpose of the Workplace Safety and Health Act?
To regulate electricity prices
To ensure safety in electrical installations
To oversee telecommunications
To manage gas supply
What is the role of the Energy Market Company in Singapore?
To regulate the electricity, gas industry and district cooling services in designated areas
To regulate gas prices in designated areas
To manage water supply in designated areas
To generate electricity in designated areas
What is the tripping current required for RCCBs in households according to SS638: 2018?
100 mA
50 mA
30 mA
10 mA
What is the function of a consumer unit in a residential installation?
To measure energy consumption
To distribute energy to final circuits
To isolate circuits
To protect against overcurrent
What is the maximum kVA rating for technician to design electrical circuits under the Licensed Electrical Workers regulations?
500 kVA
150 kVA
45 kVA
No limit
What is the main hazard caused by improper use of electricity?
Improved performance
Increased efficiency
Danger of shock
Reduced costs
What is the purpose of the Electricity (Cable Detection Workers) Regulations?
To regulate gas supply
To manage electricity prices
To perform cable detection work
To oversee electrical installations
