Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 372 · 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.🔄 What is the FIRST step of the engineering design process? (a) Create (b) Test (c) Ask (d) Improve
2. 2.📐 Why do engineers use scale drawings? (a) to make them pretty (b) to hide sizes (c) big things fit on paper (d) to save ink only
3. 3.🌉 A beam bridge 495 m long rests on the two river banks and on piers in between, making equal spans of 45 m. How many piers are there?
4. 4.🪢 Tension is a force that … (a) pushes or squeezes (b) turns things (c) heats things (d) pulls or stretches
5. 5.⚖️ Which class of lever is a seesaw? (a) class 2 (b) class 3 (c) class 1
6. 6.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is colourful (d) it is taller
7. 7.📐 On a plan, 1 cm stands for 2 m. A wall is 18 cm long on the plan. How long is the real wall, in metres?
8. 8.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 8 cm long in the drawing. How long is the real car, in centimetres?
9. 9.True or false: an electrical engineer writes app software. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) brass (b) graphite (c) clay pottery (d) iron
11. 11.🛞 Is friction helpful or a problem here: writing with a pencil? (a) helpful (b) a problem
12. 12.Which of these needs an electrical conductor? (a) a raincoat (b) a yoga mat (c) an oven glove (d) a switch contact
13. 13.🏋️ A smooth ramp is 10 m long and rises 2 m. What effort pushes a 1000 N box up it, in newtons? (ideal ramp, no friction)
14. 14.⚖️ What is the pivot point of a lever called? (a) the fulcrum (b) the load (c) the axle (d) the effort
15. 15.⚖️ In a class 2 lever, what is in the middle? (a) the effort (b) the fulcrum (c) the load (d) the axle
16. 16.🔍 Which is the odd one out? (a) a crane hook block (b) a chisel (c) a knife edge (d) an axe blade
17. 17.True or false: a dam helps people keep food fresh longer. (a) False (b) True
18. 18.🏋️ Work is done when a force moves something … (a) very slowly (b) only upwards (c) through a distance (d) without moving it
19. 19.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 1800 N box up it, in newtons? (ideal ramp, no friction)
20. 20.⚖️ Along a straight bar, measured from the left end, the effort is at 100 cm, the fulcrum at 60 cm and the load at 30 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
21. 21.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 12 N, a glass sheet 2 N, a wooden plank 6 N, a carpet 8 N. How many newtons more were needed on sandpaper than on a glass sheet?
22. 22.What does the recorder do? (a) keeps the team on track (b) writes down results (c) puts the model together (d) runs the tests
23. 23.⚙️ Which simple machine is a round doorknob? (a) wheel and axle (b) inclined plane (c) screw (d) lever
24. 24.True or false: a bicycle is found in nature. (a) False (b) True
25. 25.🪝 Fixed or movable pulley: which one only changes direction? (a) a movable pulley (b) a fixed pulley
26. 26.🔺 A frame shaped like a pentagon is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
27. 27.♻️ Which energy source will never run out? (a) sunlight (b) diesel (c) coal (d) petrol
28. 28.Which of these is reduce (use less)? (a) buy less packaging (b) reuse gift paper (c) give old books away (d) pulp old paper
29. 29.🤝 Is it good or poor teamwork to hide a mistake? (a) good teamwork (b) poor teamwork
30. 30.⚙️ Most simple machines make work easier by letting us … (a) stop all friction (b) make new energy (c) use a smaller force (d) switch off gravity
31. 31.True or false: “the longest spans of all” is a suspension bridge. (a) False (b) True
32. 32.🛞 Is friction helpful or a problem here: walking without slipping? (a) a problem (b) helpful
33. 33.🏋️ A 14 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
34. 34.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 240 N at 70 cm from the fulcrum on the other side. What is the missing force in newtons?
35. 35.True or false: “a log across a stream” is an arch bridge. (a) False (b) True
36. 36.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) gravity (d) doubled
37. 37.⚖️ A seesaw balances. Meena (440 N) sits ? m from the pivot on one side; Kabir (440 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
38. 38.🌉 A beam bridge is 100 m long. Piers split it into equal spans of 10 m. How many spans are there?
39. 39.🧪 What is a prototype? (a) a broken part (b) an early test model (c) the final product (d) a sales poster
40. 40.True or false: a biomedical engineer designs hearing aids. (a) True (b) False

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