Escalators and lifts
Tests: 9 of 11 right · Exam: 3 of 4 right · Kind: plain · Understood: 11 of 15 · Run: 2026-10-18, commit f3c23ea72
Lesson 26 of the technology course of Mova's primary school, as Mova's small model took its tests: it had read this lesson and the ones before it and learned from their exercises. Each test shows the options in the order the student saw them, its choice, the right answer, the score of every option and why it chose. The lesson itself, sentence by sentence with trees and pragmatics: the lesson in the corpora.
Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: the lesson's questions in the corpora.
Test 1 · right ✓
«escalator brushes are for polishing ur shoes lol» What are they really for?
- 1. They catch all the coins that people drop — no support
- 2. They remind your feet to keep away from the gap — ← Mova's choice · ✓ the right answer · score 7
- 3. They keep the steps warm and dry in winter — score 3
- 4. Yes, they polish everyone's shoes for free as you ride — score 6
Why: It took the question to ask a circumstance (with what, when, how). It chose option 2 with score 7, against 6 for the next best. Its support: lesson 26, line 3: «In the shopping centre, look down at the sides of the escalator steps: there are bristly brushes there. They are not for cleaning shoes; they gently remind you…», reached through the same lesson line as the sentence the question matched. What matched: the same action «keep away» (+2); the same doer «feet» (+2); the same place «gap» (+2); the same property (+1). · the question and its options parsed, with trees and pragmatics
Test 2 · right ✓
Your little sister wants to sit on the escalator step with her wellies on. What is right?
- 1. Stand her up, hold her hand, and keep her soft boots away from the edges — ← Mova's choice · ✓ the right answer · score 2
- 2. Fine, if she keeps her laces tied — no support
- 3. Fine, if the escalator is going down — no support
- 4. Fine, sitting is safer than standing — no support
Why: It took the question to ask which statement is true. It chose option 1 with score 2, the only option with support. Its support: lesson 26, line 6: «On an escalator, stand still, hold the handrail, keep feet in the middle, tie your laces, keep scarves and long clothes away from the edges, and step off at th…», reached through the same lesson line as the sentence the question matched. What matched: the same action «keep» (+2); the same property (+1). Against it: a different thing acted on (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Test 3 · right ✓
«stuck in the lift!! we're gonna run out of air» What is right?
- 1. Open the doors and climb down the shaft — no support
- 2. Yes, so shout and use up less air — no support
- 3. Lifts aren't airtight, so the air won't run out: press the alarm and wait — ← Mova's choice · ✓ the right answer · score 6
- 4. Yes, so break the ceiling and climb out — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 6, the only option with support. Its support: lesson 26, line 12: «The alarm button in a lift rings a bell or calls a help centre; if stuck, stay calm, press it and wait, and never try to climb out. The air will not run out, b…», reached through the option's own match among the sentences about the question's things. What matched: the same action «run out» (+2); the same doer «air» (+2); its «because» matches the remembered cause (+2). · the question and its options parsed, with trees and pragmatics
Test 4 · right ✓
In a cartoon, a lift cable snaps and the lift drops 50 floors. What would really happen?
- 1. The same, lifts have no brakes — no support
- 2. The lift would float like a balloon — no support
- 3. Safety brakes would grip the rails and stop the car — ← Mova's choice · ✓ the right answer · score 6
- 4. The counterweight would pull it back up at once to the very top of the building — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 6, the only option with support. Its support: lesson 26, line 4: «All these machines have safety parts you rarely notice: brakes that grip the rails if a cable ever fails, light beams that stop doors closing on you, and alarm…», reached through the same lesson line as the sentence the question matched. What matched: the same action «grip» (+2); the same doer «brakes» (+2); the same thing acted on «rails» (+2). · the question and its options parsed, with trees and pragmatics
Test 5 · wrong ✗
«doors closing!! I'll just stick my foot in, they always open» What is the best advice?
- 1. Good idea, the sensor never fails, not even once in a hundred years — no support
- 2. Don't rely on the sensor; wait for the next lift — ✓ the right answer · score 4
- 3. Use your hand, it's safer than a foot — no support
- 4. Kick the doors, they open faster — ← Mova's choice · score 8
Why: It took the question to ask which statement is true. It chose option 4 with score 8, against 4 for the next best. Its support: lesson 10, line 10: «A small switch turns on the fridge light when the door opens and off when it shuts, and a rubber seal with magnets inside keeps the cold in; a piece of paper s…», reached through the remembered sentence the question matched. What matched: the same action «open» (+4); the same doer «door» (+4). The right option, 2, scored 4. · the question and its options parsed, with trees and pragmatics
Test 6 · wrong ✗
A child's long scarf is caught at the edge of the escalator. What should an adult do at once?
- 1. Pull the child up the steps faster — ← Mova's choice · no support
- 2. Tell a shop assistant after shopping — no support
- 3. Wait for the escalator to reach the top and let the comb plate cut the scarf — no support
- 4. Press the emergency stop button at the top or bottom — ✓ the right answer · no support
Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics
Test 7 · right ✓
«Gran's stair lift is like a ride, can I go up and down on it?» What is right?
- 1. Yes, it's a fun ride if you hold on tight — no support
- 2. No, it is not a toy; it is for Gran — ← Mova's choice · ✓ the right answer · score 10
- 3. Only if you go up it sitting backwards — no support
- 4. Yes, but only if the power is switched off — no support
Why: It took the question to ask which statement is true. It chose option 2 with score 10, the only option with support. Its support: lesson 26, line 17: «A stair lift is a seat on a rail driven by a small motor and battery, so it still works in a power cut; its rail is made to fit the stairs, even round corners.…», reached through the remembered sentence the question matched. What matched: the same doer «lift» (+4); the same thing acted on «toy» (+4); the same light verb (be, have, do, get, go) (+2). · the question and its options parsed, with trees and pragmatics
Test 8 · right ✓
A tower's top floor is 400 metres up, and its lift travels 20 metres a second. How long is the ride?
- 1. 20 seconds — ← Mova's choice · ✓ the right answer · no support
- 2. 8 seconds — no support
- 3. 4 seconds — no support
- 4. 200 seconds — no support
Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics
Test 9 · right ✓
«why does that weird old German lift never stop, is it broken?» What is it?
- 1. It's a fairground ride, not a lift — no support
- 2. A paternoster, an old lift whose open cabins go round in a loop — ← Mova's choice · ✓ the right answer · score 7
- 3. Yes, it's broken and nobody fixed it — no support
- 4. A lift that stops only at night — no support
Why: It took the question to ask why something happens (its cause). It chose option 2 with score 7, the only option with support. Its support: lesson 26, line 16: «A paternoster is an old kind of lift that never stops: open cabins go round in a loop and people step on and off as a cabin slowly passes; a few still work in…», reached through the same lesson line as the sentence the question matched. What matched: the same action «go round» (+3); the same place «loop» (+2); the same property (+2). · the question and its options parsed, with trees and pragmatics
Test 10 · right ✓
The escalator is getting near the top. What should you do?
- 1. Step off straight away at the top — ← Mova's choice · ✓ the right answer · score 5
- 2. Turn round and walk back down the steps — no support
- 3. Sit down on the step to slide off at the top — no support
- 4. Stand still on the comb plate to wait for friends — no support
Why: It took the question to ask what is done. It chose option 1 with score 5, the only option with support. Its support: lesson 26, line 6: «On an escalator, stand still, hold the handrail, keep feet in the middle, tie your laces, keep scarves and long clothes away from the edges, and step off at th…», reached through the option's own match among the sentences about the question's things. What matched: the same place «top» (+2); it fills the role the question asks for (+2); the same action «step off» (+1). · the question and its options parsed, with trees and pragmatics
Test 11 · right ✓
Count them: 3 lifts, each taking 10 people per trip. How many people in one trip of all three?
- 1. 30 — ← Mova's choice · ✓ the right answer · no support
- 2. 20 — no support
- 3. 33 — no support
- 4. 13 — no support
Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics
Exam question 1 · formal language · right ✓
Which of the following statements most accurately characterises the function of the brushes affixed to the sides of an escalator?
- 1. They are provided for the cleaning of passengers' footwear — no support
- 2. They serve to warm the steps in winter — score 5
- 3. They are intended to collect coins and small objects — no support
- 4. They serve to remind passengers to keep their feet clear of the gap between the steps and the side — ← Mova's choice · ✓ the right answer · score 9
Why: It took the question to ask who or what does it. It chose option 4 with score 9, against 5 for the next best. Its support: lesson 26, line 3: «In the shopping centre, look down at the sides of the escalator steps: there are bristly brushes there. They are not for cleaning shoes; they gently remind you…», reached through the same lesson line as the sentence the question matched. What matched: the same action «remind» (+4); it fills the role the question asks for (+3); the same doer «brushes» (+2). · the question and its options parsed, with trees and pragmatics
Exam question 2 · formal language · right ✓
Ascertain the consequence which would ensue were the hoisting cable of a lift to fail.
- 1. The car would descend unimpeded to the lowest level — no support
- 2. The car would be suspended by the air within the shaft — no support
- 3. The car would ascend to the highest level — no support
- 4. Safety brakes would engage the guide rails and arrest the descent of the car — ← Mova's choice · ✓ the right answer · score 3
Why: It took the question to ask which statement is true. It chose option 4 with score 3, the only option with support. Its support: lesson 26, line 9: «A lift car is pulled by cables over a pulley with a heavy counterweight on the other side, and strong safety brakes grip the rails if a cable ever fails.», reached through the same lesson line as the sentence the question matched. What matched: the same doer «strong safety brakes» (+2); the same thing acted on «rails» (+2). Against it: a different action (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Exam question 3 · formal language · right ✓
Identify the course of conduct appropriate to a person confined within a stationary lift.
- 1. To remain calm, to operate the alarm button and to await assistance — ← Mova's choice · ✓ the right answer · score 3
- 2. To leap repeatedly in order to restore movement — no support
- 3. To restrict breathing on the assumption that the air will be exhausted — no support
- 4. To force the doors and climb out by way of the shaft — no support
Why: It took the question to ask which statement is true. It chose option 1 with score 3, the only option with support. Its support: lesson 26, line 12: «The alarm button in a lift rings a bell or calls a help centre; if stuck, stay calm, press it and wait, and never try to climb out. The air will not run out, b…», reached through the same lesson line as the sentence the question matched. What matched: the same action «stay» (+2); the same property (+1). · the question and its options parsed, with trees and pragmatics
Exam question 4 · formal language · wrong ✗
It is given that a lift accommodates 8 persons per journey and that 20 persons await it. Determine the minimum number of journeys required.
- 1. Twenty-eight — ← Mova's choice · no support
- 2. Four — no support
- 3. Two — no support
- 4. Three — ✓ the right answer · no support
Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics
This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/technology/26-escalators-and-lifts/