WorksheetsQuiz on Singapore Standard SS638:2018 and Electric Circuits
Total questions: 20
Worksheet time: 10mins
What is the primary purpose of SS 638:2018?
To regulate water installations
To ensure safety in electrical installations
To manage gas installations
To provide guidelines for plumbing
Which authority regulates the SS 638:2018?
Ministry of Education
Energy Market Authority
Ministry of Health
Building and Construction Authority
What does SS 638:2018 aim to protect?
Only property
Only livestock
Persons, property, and livestock
Only electrical equipment
Which of the following is NOT a requirement of SS 638:2018?
Protection against electric shock
Protection against burns
Protection against fire
Protection against document damage
What does Part 1 of SS 638:2018 cover?
Protection For Safety
Scope, object fundamental principles
Definitions
Assessment of General Characteristics
What is the unit of measurement for voltage?
Amperes
Ohms
Volts
Watts
What does an ammeter measure?
Current flow
Resistance
Voltage
Power
In a simple electric circuit, what does the formula V = I x R represent?
Voltage equals current times resistance
Voltage equals resistance times power
Current equals voltage times resistance
Resistance equals voltage times current
What type of meter is used to measure resistance?
Multimeter
Ohmmeter
Voltmeter
Ammeter
What is the relationship between voltage and current in a conductor?
They are unrelated
They are directly proportional
They are inversely proportional
They are equal
What does the term 'impedance' include in an AC circuit?
Only resistance
Resistance and capacitance
Resistance, inductance, and capacitance
Only inductance
What is the purpose of Part 4 in SS 638:2018?
To assess general characteristics
To define terms
To provide protection for safety
To select and erect equipment
Which of the following is a type of multimeter?
Both Digital and Analog
Analog
Digital
Neither Digital nor Analog
What must be done before measuring resistance with an ohmmeter?
Ensure circuit is in series
Ensure the supply is on
Ensure the supply is off
Ensure circuit is in parallel
What is the unit of energy in electrical measurements?
Ohm
Watt-hour
Volt
Watt
What does the term 'current' refer to in an electric circuit?
The flow of resistance
The flow of energy
The flow of voltage
The flow of electric charge
What is the main objective of the numbering system in SS 638:2018?
To eliminate amendments
To bring international accord
To simplify the code
To confuse users
What is the former code for electrical practice in Singapore?
CP638
CP645
CP5
CPC
Is Part 7(L) newly added into SS638?
True
False
What is the power rating for an electrical appliance with resistance of 20ohm connected to 230V?
2.645W
2.645mW
2.645MW
2.645kW
