Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 617 · 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 holds up a long beam bridge in the middle? (a) nothing (b) balloons (c) cables only (d) piers
2. 2.🏋️ A smooth ramp is 6 m long and rises 1 m. What effort pushes a 5100 N box up it, in newtons? (ideal ramp, no friction)
3. 3.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a criterion (b) a constraint
4. 4.Which of these happens in the Ask step? (a) measure its performance (b) brainstorm many ideas (c) list the materials (d) find the limits
5. 5.🛞 More or less friction: a wet tiled floor? (a) less friction (b) more friction
6. 6.🏋️ A force of 190 N did 1330 J of work. How many metres did the object move?
7. 7.🛞 Is friction helpful or a problem here: a knot holding a rope? (a) a problem (b) helpful
8. 8.📐 Why do engineers use scale drawings? (a) big things fit on paper (b) to save ink only (c) to hide sizes (d) to make them pretty
9. 9.📋 Criteria are … (a) the team names (b) the limits on money (c) the tools you use (d) goals a design must meet
10. 10.Which of these is made by engineers? (a) a railway track (b) a mountain (c) a river (d) a waterfall
11. 11.🪢 Tension is a force that … (a) heats things (b) pushes or squeezes (c) pulls or stretches (d) turns things
12. 12.🌉 In a suspension bridge, the main cables are in … (a) compression (b) friction (c) no force (d) tension
13. 13.🦺 In the workshop, is it safe to play near a moving drill? (a) safe (b) not safe
14. 14.🪝 A well winch has a handle (wheel) of radius 18 cm turning an axle of radius 3 cm. What is its mechanical advantage (MA)?
15. 15.📐 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?
16. 16.♻️ Is biogas from waste a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
17. 17.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a constraint (b) a criterion
18. 18.⚖️ Turning effect = force × … (a) distance from fulcrum (b) mass of fulcrum (c) colour of bar (d) time taken
19. 19.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) gravity (c) unbalanced (d) doubled
20. 20.⚖️ A seesaw balances. Arjun (? N) sits 3 m from the pivot on one side; Ravi (570 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
21. 21.Which of these needs a heat insulator? (a) an oven glove (b) a boat hull (c) a water tank (d) a switch contact
22. 22.🧱 Which property matters most for a hair band? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
23. 23.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 30 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
24. 24.⚖️ A lever balances when … (a) both weights are equal (b) the fulcrum moves (c) the bar is short (d) turning effects match
25. 25.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) using a heavy roof (d) leaving out steel bars
26. 26.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Create (b) Plan (c) Imagine (d) Test
27. 27.🪝 A pulley system has 3 rope sections holding up the load. To lift the load by 3 m, how many metres of rope must you pull?
28. 28.🔍 Which is the odd one out? (a) roll at least 2 metres (b) carry 10 coins (c) float for 1 minute (d) be under 30 cm tall
29. 29.🤝 Why do engineers work in teams? (a) to argue more (b) to finish nothing (c) many skills and ideas (d) to work alone
30. 30.⚖️ A lever bar balances. The load is 50 N at ? cm from the fulcrum. The effort is 10 N at 50 cm from the fulcrum on the other side. What is the missing distance in centimetres?
31. 31.🔧 Which tool would you use to make a hole in wood? (a) a hammer (b) a hand drill (c) pliers (d) a tape measure
32. 32.🪝 Fixed or movable pulley: which one only changes direction? (a) a movable pulley (b) a fixed pulley
33. 33.🛠️ People need to store water for summer. Which invention helps? (a) a tunnel (b) a solar panel (c) a dam (d) a microscope
34. 34.True or false: a wheelbarrow is a class 1 lever (fulcrum in the middle). (a) True (b) False
35. 35.💪 A bag has a mass of 31 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
36. 36.🤝 A team plans for 40 minutes, builds for 10 minutes and then tests for 20 minutes, one after another. How many minutes is that in all?
37. 37.🛠️ Is a river made by engineers or found in nature? (a) found in nature (b) made by engineers
38. 38.Which of these is found in nature? (a) a mobile phone (b) a bridge (c) a volcano (d) a bicycle
39. 39.Which job does an electrical engineer do? (a) designs a paint factory (b) plans a space mission (c) writes app software (d) designs electric motors
40. 40.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) read the challenge rules (b) strengthen the weak part (c) build it with straws (d) choose and draw one

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