WorksheetsIntroduction to Electric Circuits
Total questions: 10
Worksheet time: 5mins
Which statement best defines an electric circuit?
A closed path forming an electric network
A single wire without connected components
A battery isolated from any load
An open loop forming an electric network
What type of circuit is this?
Series circuit with one switch controlling all lamps
Parallel circuit with each lamp across the supply
Series-parallel circuit mixing lamp groups
Closed circuit with no disconnections present
Which condition describes an open circuit?
No discontinuity and current flows through all elements
Conductors touch creating very high fault current
A disconnection prevents current from flowing anywhere
Mixed series and parallel connections in one circuit
Which circuit type is primarily used to distribute power around a dwelling while allowing multiple sockets to share the load in a loop configuration?
Sub mains for feeder distribution
Radial circuits for single-route outlets
Ring mains for looped socket circuits
Lighting circuits for switched luminaires
An installation must keep security cameras and access control operating during a mains failure. Which combination best meets this requirement?
Lighting circuits with emergency luminaires
UPS supporting CCTV and control interfaces
CCTV with standard radial supply only
Data transmission cabling without backup power
Which issue is most likely when older installations use lead‑sheathed or vulcanised India rubber cabling?
Socket outlets self‑seal against moisture ingress
Earth continuity automatically improves with age
Conductor resistance steadily decreases with age
Insulation becomes brittle and cracks over time
Which regulation applies to bedroom and bathroom hoists used to lift people?
RIDDOR incident reporting rules
BS 7671 wiring regulations
LOLER lifting operations rules
PUWER workplace equipment rules
Disability and bariatric aids are primarily designed to:
Support larger or obese patients safely
Eliminate the need for medical staff
Reduce building electrical loads
Meet aesthetic interior design goals
Which of the following is a hazard of older wiring systems?
Correctly rated main fuse
Borrowed neutrals
Modern colour coding
Presence of CPC in lighting circuits
Which way do electrons flow in an electrical circuit?
Positive to Negative.
Clockwise
Anti-Clockwise
Negative to Positive
