Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 317 · 40 questions

Engineer's tip (Find the topic, use the idea): Find the topic: design process, force, machine, lever, structure, material, bridge or scale. Use that lesson’s rule — what is in the middle, load × distance = effort × distance, work = force × distance, real = drawing × scale. Write the calculation before you answer.

1. 1.🔺 A beam bends under a load. Its top side is … (a) floating (b) stretched (tension) (c) not affected (d) squeezed (compression)
2. 2.🌉 A beam bridge 80 m long rests on the two river banks and on piers in between, making equal spans of 40 m. How many piers are there?
3. 3.Which of these is found in nature? (a) a waterfall (b) a mobile phone (c) a bridge (d) a bicycle
4. 4.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 80 cm and the load at 50 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
5. 5.🛞 More or less friction: oil on a squeaky hinge? (a) more friction (b) less friction
6. 6.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, it works (b) yes, always (c) no, it breaks a limit (d) only if it is red
7. 7.🔍 Which is the odd one out? (a) a truck loading ramp (b) a well winch handle (c) a steering wheel (d) a water tap handle
8. 8.🪝 A winch has a wheel of radius 7 cm and an axle of radius 1 cm. What effort on the wheel lifts a 1260 N bucket on the axle, in newtons? (ideal)
9. 9.🦺 In the workshop, is it safe to let adults use hot glue? (a) not safe (b) safe
10. 10.🔍 Which is the odd one out? (a) graphite (b) steel (c) clay pottery (d) copper
11. 11.Which job does a civil engineer do? (a) designs a gearbox (b) designs hearing aids (c) designs artificial limbs (d) plans a dam
12. 12.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 7 cm long in the drawing. How long is the real car, in centimetres?
13. 13.Which of these is a beam bridge? (a) pushes out on its ends (b) a curve under the deck (c) a flat deck on piers (d) a rope bridge in hills
14. 14.🔍 Which is the odd one out? (a) lift a cup of water (b) finish in 40 minutes (c) use at most 20 straws (d) fit on a school desk
15. 15.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
16. 16.Which of these is recycle (make new things)? (a) pulp old paper (b) carry a cloth bag (c) switch off unused lights (d) buy less packaging
17. 17.Which of these is a suspension bridge? (a) good for short gaps (b) the longest spans of all (c) a flat deck on piers (d) a log across a stream
18. 18.🛞 Is friction helpful or a problem here: gripping a cricket bat? (a) a problem (b) helpful
19. 19.🛠️ Is a ceiling fan made by engineers or found in nature? (a) found in nature (b) made by engineers
20. 20.🧑‍🔧 Which kind of engineer designs car engines? (a) aerospace (b) biomedical (c) mechanical (d) civil
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
22. 22.Which of these happens in the Ask step? (a) measure its performance (b) define the problem (c) think of wild ideas (d) try it out
23. 23.Which of these is in tension (pulled)? (a) a bridge pier (b) a squeezed spring (c) a tall bridge tower (d) a tug of war rope
24. 24.⚙️ Which simple machine is a round doorknob? (a) wheel and axle (b) lever (c) wedge (d) pulley
25. 25.🛠️ Engineers use maths and which other subject the most? (a) cooking (b) music (c) science (d) dance
26. 26.True or false: to list the materials is the Plan step. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) fitting rubber base pads (d) stacking loose bricks
28. 28.Which need does a lift meet? (a) reach a top floor fast (b) talk to someone far away (c) make water safe to drink (d) store water for summer
29. 29.🧑‍🔧 Which kind of engineer designs knee implants? (a) biomedical (b) computer (c) civil (d) chemical
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
31. 31.🏋️ In which unit is work measured? (a) metre (m) (b) joule (J) (c) watt hour (d) newton (N)
32. 32.True or false: a wet tiled floor gives less friction. (a) True (b) False
33. 33.🏋️ A force of 130 N did 1170 J of work. How many metres did the object move?
34. 34.🏋️ A force of 90 N pushes a cart 10 m along the floor. How much work is done, in joules?
35. 35.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 3 N, a glass sheet 7 N, a wooden plank 8 N, a carpet 9 N. Which surface gave the most friction? (a) ice (b) a wooden plank (c) a glass sheet (d) a carpet
36. 36.⚖️ A lever balances when … (a) turning effects match (b) the bar is short (c) both weights are equal (d) the fulcrum moves
37. 37.🛠️ What does an engineer mainly do? (a) designs useful solutions (b) only paints pictures (c) sells tickets (d) grows crops
38. 38.🌉 A beam bridge 200 m long rests on the two river banks and on piers in between, making equal spans of 50 m. How many piers are there?
39. 39.🪢 Tension is a force that … (a) turns things (b) pulls or stretches (c) heats things (d) pushes or squeezes
40. 40.True or false: a pillar under a roof is in tension (pulled). (a) False (b) True

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