Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 624 · 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.💪 Two children push a box to the right, one with 45 N and the other with 35 N. What is the net (total) force on the box, in newtons?
2. 2.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) not affected (c) squeezed (compression) (d) floating
3. 3.True or false: a train helps people carry many people far. (a) True (b) False
4. 4.⚖️ Turning effect = force × … (a) colour of bar (b) time taken (c) distance from fulcrum (d) mass of fulcrum
5. 5.🧑‍🔧 Which kind of engineer designs a paint factory? (a) chemical (b) biomedical (c) mechanical (d) electrical
6. 6.🏋️ In which unit is work measured? (a) newton (N) (b) metre (m) (c) watt hour (d) joule (J)
7. 7.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) computer (b) chemical (c) civil (d) biomedical
8. 8.Which of these is caused by friction? (a) squeezing a lemon (b) rain falls to the ground (c) an apple falls down (d) a rolling ball slows
9. 9.📐 How many millimetres are in 1 centimetre? (a) 10 (b) 5 (c) 100 (d) 1000
10. 10.📐 On a plan, 1 cm stands for 5 m. A real bridge is 35 m long. How long is it on the plan, in centimetres?
11. 11.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
12. 12.🪝 Fixed or movable pulley: which one needs effort = load? (a) a movable pulley (b) a fixed pulley
13. 13.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 10 cm long in the drawing. How long is the real car, in centimetres?
14. 14.🌉 In a stone arch bridge, the stones are in … (a) tension (b) no force (c) compression (d) friction
15. 15.📋 Your team’s budget is ₹38. You must buy one roll of tape for ₹20. Straws cost ₹2 each. What is the greatest number of straws you can buy?
16. 16.🛞 More or less friction: a tyre with deep treads? (a) more friction (b) less friction
17. 17.True or false: the tip of a nail is a wheel and axle. (a) False (b) True
18. 18.🪝 Fixed or movable pulley: which one only changes direction? (a) a movable pulley (b) a fixed pulley
19. 19.🏋️ A force of 30 N did 120 J of work. How many metres did the object move?
20. 20.Which of these is reuse (use again)? (a) plant in old tyres (b) pulp old paper (c) melt cans into new cans (d) turn plastic into tiles
21. 21.🔺 A frame shaped like a pentagon is made of straws joined by loose pins, with 1 corner-to-corner brace. Is it rigid or wobbly? (a) rigid (b) wobbly
22. 22.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 80 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
23. 23.⚖️ Which class of lever is a pair of pliers? (a) class 1 (b) class 2 (c) class 3
24. 24.🔍 Which is the odd one out? (a) a grippy rubber sole (b) a rough doormat (c) a tyre with deep treads (d) a wet tiled floor
25. 25.⚖️ Which class of lever is a nutcracker? (a) class 2 (b) class 3 (c) class 1
26. 26.🌉 What holds up a long beam bridge in the middle? (a) nothing (b) cables only (c) balloons (d) piers
27. 27.🔍 Which is the odd one out? (a) stacking loose bricks (b) leaving out steel bars (c) building tall and narrow (d) having a wide base
28. 28.🪢 A sign weighing 360 N hangs from 3 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
29. 29.🦺 How should you carry scissors? (a) by the blades (b) points up, open (c) points down, closed (d) while running
30. 30.🔺 Which shape keeps its shape best when its corners are pinned? (a) rectangle (b) hexagon (c) square (d) triangle
31. 31.♻️ Is biogas from waste a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
32. 32.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
33. 33.♻️ A school bench is made from 500 recycled plastic bottles. How many benches can be made from 1000 bottles?
34. 34.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) wind (d) gravity
35. 35.🔍 Which is the odd one out? (a) guess, do not measure (b) record every result (c) change lots at once (d) test it only once
36. 36.⚖️ In a class 2 lever, what is in the middle? (a) the axle (b) the load (c) the effort (d) the fulcrum
37. 37.Which of these needs a flexible material? (a) a boat hull (b) a magnifier lens (c) a hair band (d) a tea flask lining
38. 38.📐 On a plan, 1 cm stands for 5 m. A wall is 11 cm long on the plan. How long is the real wall, in metres?
39. 39.True or false: a table leg is in compression (pushed). (a) False (b) True
40. 40.True or false: a boat hull needs a transparent material. (a) True (b) False

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