Electricity
10 practice questions with explanations — 15 free to try
PassNova has 10 NEBOSH General Certificate practice questions on Electricity, each with a clear explanation. A 15-question taster is free with no sign-up; the full bank is part of PassNova Premium. Updated for 2026.
Electricity: example questions & answers
1 worked example with answers and explanations below. Try 15 NEBOSH General Certificate questions free in the browser; the full 10-question Electricity bank is part of PassNova Premium.
Which set of hazards arises directly from electricity at work?
- AElectric shock, burns, fire, and arcing or explosion✓
- BOnly electric shock, since modern equipment is double insulated
- COnly fire, because shock requires a fault in the fixed installation
- DOnly burns, as shock is prevented by the earthing of the supply
Answer: Electricity injures in several ways: current passing through the body (shock), heating and arc flash (burns), ignition of nearby materials (fire) and ignition of a flammable atmosphere (explosion). Treating it as a shock-only hazard leads to controls that miss the rest.