Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 357 · 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.Which of these needs a transparent material? (a) a magnifier lens (b) a water tank (c) a cooking pot handle (d) the core of a wire
2. 2.Which of these is caused by gravity? (a) brakes stop a bicycle (b) rain falls to the ground (c) rubbing hands warms them (d) a rolling ball slows
3. 3.🤝 Is it good or poor teamwork to help a stuck teammate? (a) poor teamwork (b) good teamwork
4. 4.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 40 N at 40 cm from the fulcrum on the other side. What is the missing force in newtons?
5. 5.True or false: a boat hull needs a transparent material. (a) False (b) True
6. 6.Which of these is found in nature? (a) a bicycle (b) a lift (c) a bridge (d) a banyan tree
7. 7.Which of these happens in the Create step? (a) build the model (b) define the problem (c) think of wild ideas (d) redesign after testing
8. 8.🪢 Tension or compression: a suspension cable? (a) compression (b) tension
9. 9.♻️ Reduce, reuse or recycle: refill a water bottle? (a) recycle (b) reuse (c) reduce
10. 10.🛠️ Is a river made by engineers or found in nature? (a) found in nature (b) made by engineers
11. 11.♻️ Which is the BEST order to think about waste? (a) reuse, recycle, reduce (b) burn, bury, forget (c) recycle, reuse, reduce (d) reduce, reuse, recycle
12. 12.True or false: a roof truss uses an arch. (a) False (b) True
13. 13.⚖️ On a seesaw, a heavier child should sit … (a) farther from the pivot (b) on the pivot (c) anywhere (d) closer to the pivot
14. 14.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 3 N, a wooden plank 5 N, a carpet 7 N, sandpaper 9 N. Which surface gave the least friction? (a) a wooden plank (b) a carpet (c) ice (d) sandpaper
15. 15.🌉 A beam bridge 90 m long is split by piers into 3 equal spans. How long is each span, in metres?
16. 16.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.📐 How many millimetres are in 1 centimetre? (a) 5 (b) 10 (c) 1000 (d) 100
18. 18.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
19. 19.🔢 To follow the engineering design process, which is the LAST step? (a) Test (b) Create (c) Improve (d) Imagine
20. 20.🔍 Which is the odd one out? (a) guess, do not measure (b) hide a failed test (c) repeat each test (d) test it only once
21. 21.🏋️ A force of 110 N pushes a cart 9 m along the floor. How much work is done, in joules?
22. 22.🧪 A paper bridge was tested three times. It held 390 g, 220 g and 320 g. What is the mean (average) load it held, in grams?
23. 23.⚙️ Which simple machine is a crane hook block? (a) lever (b) wheel and axle (c) inclined plane (d) pulley
24. 24.True or false: a seesaw is a lever. (a) False (b) True
25. 25.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) load it with coins (c) build it with straws (d) strengthen the weak part
26. 26.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) lifting a school bag (c) a compass needle turns (d) a river flows downhill
27. 27.True or false: to hide a mistake is good teamwork. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) change lots at once (d) repeat each test
29. 29.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) using a heavy roof (d) fitting rubber base pads
30. 30.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) friction (c) gravity (d) muscular force
31. 31.🛠️ Which of these is a problem an engineer could solve? (a) a sad song (b) a lost cricket match (c) a road that floods (d) a boring story
32. 32.Which job is a tape measure for? (a) check a shelf is level (b) tighten a nut (c) drive in a nail (d) measure a long length
33. 33.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 6 N, sandpaper 7 N, ice 1 N, a wooden plank 5 N. How many newtons more were needed on sandpaper than on ice?
34. 34.🪢 Tension or compression: a bridge pier? (a) tension (b) compression
35. 35.True or false: a pair of scissors is a class 3 lever (effort in the middle). (a) True (b) False
36. 36.📋 For a model bridge challenge, is “hold up 500 g” a constraint or a criterion? (a) a criterion (b) a constraint
37. 37.⚖️ Which class of lever is a bottle opener? (a) class 1 (b) class 3 (c) class 2
38. 38.📐 On a plan, 1 cm stands for 20 m. A wall is 17 cm long on the plan. How long is the real wall, in metres?
39. 39.Which need does a tunnel meet? (a) go through a mountain (b) talk to someone far away (c) see very tiny things (d) cross a wide river
40. 40.Which of these is a wheel and axle? (a) a claw hammer on a nail (b) a crowbar (c) a well winch handle (d) a door stopper

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids