CSCS Card Health, Safety and Environment Test · Electricity and plant

Electricity, plant, lifting and excavations

31 practice questions, each with the answer and an explanation.

Practise Electricity, plant, lifting and excavations now

Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 31 questions

  1. Which voltage is normally used for portable hand tools on construction sites?
  2. What colour are the plugs and sockets for a 110 volt supply?
  3. What is the purpose of a residual current device (RCD)?
  4. An RCD should be tested
  5. You find a power tool with damaged insulation on its cable. What should you do?
  6. Who may carry out repairs to electrical equipment on a construction site?
  7. Before work begins on an electrical circuit that is to be isolated, what must happen after switching off?
  8. A mobile crane is working near overhead power lines. What is the first thing to assume about the lines?
  9. Goalposts and a barrier are put up near overhead lines to
  10. What should you do before digging in an area where underground services might be present?
  11. A mechanical digger strikes an underground electric cable. What should the operator do?
  12. Which law requires lifting equipment to be thoroughly examined at set intervals?
  13. How often must lifting accessories such as slings be thoroughly examined under LOLER, unless a scheme says otherwise?
  14. Who is responsible for planning a lifting operation, under LOLER?
  15. Why should no one walk under a suspended load?
  16. A 3000 kg load is lifted with a two-leg sling. If the angle between the legs is 120 degrees, what is the tension in each leg?
  17. Why does a wider angle between the legs of a sling reduce the safe load it can lift?
  18. A banksman gives signals to a plant operator. What must the operator do if the signals are unclear?
  19. Why is it dangerous to stand within the swing radius of an excavator?
  20. Who can ride on a dumper or excavator on site?
  21. What should an operator do when leaving a piece of plant unattended?
  22. Why must seat belts be worn on a site dumper?
  23. What does the Provision and Use of Work Equipment Regulations 1998 (PUWER) require?
  24. When is an abrasive wheel allowed to be mounted on a machine?
  25. A dumper truck is reversing on a busy site. What is the best control to protect pedestrians?
  26. How deep can an unsupported trench be before it must be assessed for collapse risk?
  27. When must a competent person inspect an excavation that people will work in?
  28. Why are stop blocks fitted at the edge of an excavation?
  29. Before entering a confined space such as a deep manhole, what must happen first?
  30. Why must compressed air never be pointed at the skin or used to clean clothing?
  31. A person is required to operate a telehandler on site. What must they have?

Keep practising

More CSCS Card Health, Safety and Environment Test topics

All CSCS Card Health, Safety and Environment Test practice →

Ready for the full CSCS Card Health, Safety and Environment Test test?

Take a mock testCSCS Card Health, Safety and Environment Test hub