Working inside machinery that moves, in a building full of people
Everything about this trade follows from that sentence. The engineer is inside the equipment rather than beside it, the equipment is designed to travel into the space they are standing in, and the people on the other side of the landing doors want the lift working.
Three things kill: falling into the shaft, being caught between the car and the structure, and somebody restoring power while an engineer is in the pit. The chapter is built almost entirely around preventing those three.
Isolation, and why the stop button is not it
A stop button is a control. It can be reset, and it will be, by somebody who has decided the lift has been out of service long enough. Lock off keeps the isolation under the control of the person who cannot see whether it is still in place, which is the person inside.
Electrical isolation is also only half of it in a pit. It stops the motor driving the car; it does nothing about the car descending under gravity. Mechanical restraint is the second layer, and the questions test whether you know that both are needed rather than either.
The landing door is an ordinary looking door with a drop behind it
The people who fall down lift shafts are frequently not lift engineers. They are cleaners, other trades, and anybody who found a door that opened. Landing doors can be released from the landing side, so a lift out of service needs every door secured and signed, not just the one at the ground floor.
The same logic applies during installation. A gap between a car and a landing is an unprotected edge, and the protection has to work for somebody who arrives expecting a floor.
Escalators trap and draw in
The hazard is the moving steps, the combs, the handrail and the drive beneath. Machinery spaces at the head and foot are poorly ventilated, full of oil and grease, and reached through a single small access, which puts them into confined space territory rather than treating them as a cupboard.
In a public building the barriers matter as much as the isolation, because people step onto escalators without looking and a stopped escalator gets walked up as well as down.
Releasing a trapped passenger
Uncontrolled releases kill people, usually when somebody climbs out of a car that is not level and it moves. The car is a safe place to be. Keeping the passenger informed is part of the control, because distress is what makes somebody attempt to get out themselves.
Why we print two repeat rates instead of one
Two papers of K questions from a bank of N share about K squared over N. The subject pool here is smaller than the core pool, so it repeats sooner than the combined figure suggests. Both are reported above the test.
Common questions
Why is a stop button not an isolation?
Because it is a control device that anybody can reset, and somebody in the building always wants the lift working. Isolation means locking off the supply so that the person inside the shaft is the only one who can restore it. That is the whole point: the person at risk is the one who cannot check whether it is still safe.
How often must a passenger lift have a thorough examination?
At least every six months for lifting equipment used to carry people, and at least every twelve months for most other lifting equipment. It is a separate activity from maintenance, carried out by a competent person independent of the routine servicing, because it exists to check the maintenance as well as the machine.
What happens if an examination finds imminent danger?
The equipment comes out of use immediately and the report is notified to the enforcing authority. That notification requirement exists precisely so a defect of that seriousness cannot be quietly filed by an owner who would rather keep the lift running.
Why is electrical isolation not enough before entering a pit?
Because isolation stops the motor driving the car, not the car descending under gravity if a rope or brake fails. Mechanical restraint plus the pit stop switch is the layer that covers that, which is why both are used rather than either.
What is the pass mark for the lifts and escalators test?
Forty five out of fifty in forty five minutes, five wrong answers being the entire allowance. Thirty five questions come from the core operatives chapters and fifteen from lifts and escalators. The trade fifteen sit mostly on PUWER and LOLER, which are the two that get mixed up, and mixing them up on a paper this tight is expensive.
Are these the real lifts and escalators questions?
No, and no free site has them. CITB sells its bank instead of publishing it. The lifts and escalators questions here are written from free HSE guidance, principally the PUWER, machinery and LOLER material with the work at height pages behind it, and every answer carries a link to the guidance it came from so a wrong answer is the start of the explanation rather than the end of it.
Is progress on this paper stored on its own?
Yes. This paper keeps its own record in your browser under its own key, so it and the operatives test do not overwrite each other, and nothing leaves the device. The specialist pool holds twenty eight questions and fifteen appear on each paper, so a second sitting repeats about eight. The page prints that separately, because the combined figure across fifty questions always looks better than the specialist half really is.