Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 452 · 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 uses triangles? (a) a shelf on two brackets (b) a bicycle frame (c) a fort gateway (d) a round palace roof
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
3. 3.⚖️ Turning effect = force × … (a) colour of bar (b) mass of fulcrum (c) distance from fulcrum (d) time taken
4. 4.🧑‍🔧 Which kind of engineer refines crude oil? (a) chemical (b) civil (c) aerospace (d) mechanical
5. 5.🧑‍🔧 Which kind of engineer plans a dam? (a) civil (b) electrical (c) aerospace (d) biomedical
6. 6.⚖️ A lever bar balances. The load is 810 N at 10 cm from the fulcrum. The effort is 90 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
7. 7.True or false: an oven glove needs a heat insulator. (a) False (b) True
8. 8.True or false: a tall bridge tower is in tension (pulled). (a) True (b) False
9. 9.📋 A constraint is … (a) a limit you must keep to (b) a final test (c) a kind of glue (d) a goal for success
10. 10.True or false: a jar lid is a screw. (a) True (b) False
11. 11.♻️ Reduce, reuse or recycle: carry a cloth bag? (a) reuse (b) recycle (c) reduce
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 170 g and design C held 270 g. Which design was the weakest? (a) design B (b) design C (c) design A
13. 13.🔍 Which is the odd one out? (a) a round doorknob (b) a steering wheel (c) a well winch handle (d) a playground slide
14. 14.♻️ Is biogas from waste a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
15. 15.🏋️ A force of 60 N pushes a cart 6 m along the floor. How much work is done, in joules?
16. 16.🔧 Which tool would you use to make a hole in wood? (a) a protractor (b) a spanner (c) pliers (d) a hand drill
17. 17.True or false: a table leg is in tension (pulled). (a) False (b) True
18. 18.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 5 cm long in the drawing. How long is the real car, in centimetres?
19. 19.🪝 A well winch has a handle (wheel) of radius 6 cm turning an axle of radius 2 cm. What is its mechanical advantage (MA)?
20. 20.Which of these needs a flexible material? (a) a water tank (b) an umbrella cover (c) a boat hull (d) a yoga mat
21. 21.🌉 Which bridge type: “tall towers hold cables”? (a) suspension bridge (b) beam bridge (c) arch bridge
22. 22.Which job does an aerospace engineer do? (a) designs a paint factory (b) designs artificial limbs (c) plans a space mission (d) refines crude oil
23. 23.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) using a light roof (d) using a heavy roof
24. 24.🪝 Fixed or movable pulley: which one is on a flagpole top? (a) a movable pulley (b) a fixed pulley
25. 25.Which of these is in tension (pulled)? (a) a table leg (b) a stretched rubber band (c) a bridge pier (d) a stone in an arch
26. 26.True or false: to check a shelf is level, use a spirit level. (a) False (b) True
27. 27.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) paper (d) cardboard
28. 28.⚖️ A lever bar balances. The load is 320 N at ? cm from the fulcrum. The effort is 320 N at 40 cm from the fulcrum on the other side. What is the missing distance in centimetres?
29. 29.True or false: a car windscreen needs a flexible material. (a) True (b) False
30. 30.Which of these is a wheel and axle? (a) a seesaw (b) a well winch handle (c) a screw jack (d) the tip of a nail
31. 31.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
32. 32.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🔍 Which is the odd one out? (a) iron (b) aluminium (c) dry wood (d) copper
34. 34.True or false: a nutcracker is a class 1 lever (fulcrum in the middle). (a) True (b) False
35. 35.♻️ A family used to throw away 4 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 7 weeks?
36. 36.⚖️ A seesaw balances. Ravi (720 N) sits 2 m from the pivot on one side; Kabir (360 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
37. 37.True or false: a fixed pulley only changes direction. (a) False (b) True
38. 38.🔺 How do engineers stop a square frame from wobbling? (a) paint it (b) take off a side (c) add a diagonal brace (d) make it bigger
39. 39.Which need does a bridge meet? (a) cross a wide river (b) make water safe to drink (c) store water for summer (d) see very tiny things
40. 40.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they stop shaking (d) they look nice

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