WorksheetsElectrical Faults and Overcurrent Quiz
Total questions: 10
Worksheet time: 5mins
Which color represents a 15A BS 3036 semi-enclosed fuse?
Green
Blue
Red
Yellow
What is one reason BS 88-3:2010 cartridge fuses do not deteriorate with age?
They have a large physical size
They have no mechanical moving parts
They are made of plastic
They are frequently replaced
What is the main purpose of a circuit breaker to BS EN 60898?
To increase electrical load
To provide circuit protection
To reduce installation costs
To enhance circuit complexity
Which component in a circuit breaker is responsible for interrupting the arc?
Box terminal
Arc chamber
DIN clip
Trip bar
Which part of the circuit breaker is used to secure it to a mounting rail?
Box terminal
Thermal element
DIN clip
Trip bar
Which component provides a connection point for wires in a circuit breaker?
Box terminal
Arc chamber
Magnetic hammer action solenoid
Trip bar
Which component in a circuit breaker remains stationary?
Moving contact
Fixed contact
Trip bar
Thermal element
Which circuit breaker type is not suitable for general use?
Type 1
Type 2
Type 3
Type 4
What is the trip current range for a Type 3 circuit breaker?
2.7 to 4 Iₙ
3 to 5 Iₙ
7 to 10 Iₙ
10 to 50 Iₙ
What is the purpose of the 'Test button' in an RCD?
To test the functionality of the RCD
To reset the RCD
To increase the current flow
To decrease the voltage
