Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 899 · 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.🔺 One side of a straw bridge is a row of 1 triangle standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
2. 2.True or false: a civil engineer plans a dam. (a) False (b) True
3. 3.🏋️ A longer ramp to the same height needs … (a) the same effort (b) less effort (c) more effort (d) no effort
4. 4.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🛠️ What does an engineer do before building anything? (a) understands the problem (b) paints the model (c) buys every material (d) builds at once
6. 6.True or false: “spend at most ₹100” is a criterion (a goal). (a) False (b) True
7. 7.True or false: a claw hammer on a nail is a wedge. (a) True (b) False
8. 8.🔺 Which strong shape does an old stone bridge use? (a) beam (b) triangle (c) arch (d) dome
9. 9.🏋️ A force of 300 N did 1200 J of work. How many metres did the object move?
10. 10.True or false: to try it out is the Test step. (a) True (b) False
11. 11.🔺 A frame shaped like a triangle is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
12. 12.Which job does an aerospace engineer do? (a) designs a paint factory (b) designs satellites (c) designs bicycle gears (d) designs artificial limbs
13. 13.🛠️ Is a coral reef made by engineers or found in nature? (a) found in nature (b) made by engineers
14. 14.🦺 In the workshop, is it safe to leave tools on the floor? (a) not safe (b) safe
15. 15.📐 On a plan, 1 cm stands for 2 m. A real bridge is 4 m long. How long is it on the plan, in centimetres?
16. 16.🔺 A flat frame has 10 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
17. 17.🔍 Which is the odd one out? (a) a ceiling fan (b) a dam (c) a rainbow (d) a water filter
18. 18.📐 How many metres are in 1 kilometre? (a) 10 (b) 1000 (c) 10000 (d) 100
19. 19.True or false: a pair of tweezers is a class 1 lever (fulcrum in the middle). (a) False (b) True
20. 20.Which of these happens in the Imagine step? (a) brainstorm many ideas (b) make a prototype (c) redesign after testing (d) build the model
21. 21.🤝 In a design team, who puts the model together? (a) builder (b) team leader (c) tester (d) materials manager
22. 22.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 40 cm and the load at 60 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
23. 23.Which of these is in compression (pushed)? (a) a temple column (b) a hanging lamp chain (c) a tow rope on a car (d) a stretched rubber band
24. 24.Which of these is caused by gravity? (a) a river flows downhill (b) a rolling ball slows (c) lifting a school bag (d) squeezing a lemon
25. 25.⚖️ What is the pivot point of a lever called? (a) the axle (b) the effort (c) the load (d) the fulcrum
26. 26.Which of these happens in the Ask step? (a) ask who will use it (b) build the model (c) measure its performance (d) draw a labelled diagram
27. 27.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
28. 28.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a constraint (b) a criterion
29. 29.🔄 After testing, a design does not work well. What comes next? (a) Improve (b) Ask (c) give up (d) Imagine
30. 30.🏋️ A force of 230 N did 1380 J of work. How many metres did the object move?
31. 31.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) leaving out steel bars (d) having a wide base
32. 32.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
33. 33.⚖️ In a class 3 lever, what is in the middle? (a) the load (b) the pulley (c) the effort (d) the fulcrum
34. 34.🔍 Which is the odd one out? (a) skating on ice (b) a wheel on ball bearings (c) a rough doormat (d) powder on a carrom board
35. 35.🧪 A paper bridge was tested three times. It held 260 g, 240 g and 220 g. What is the mean (average) load it held, in grams?
36. 36.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) electrical (b) aerospace (c) biomedical (d) civil
38. 38.🌉 In a suspension bridge, the main cables are in … (a) friction (b) compression (c) tension (d) no force
39. 39.Which job does a chemical engineer do? (a) writes app software (b) plans a power grid (c) runs a fertiliser plant (d) builds a website
40. 40.True or false: oil on a squeaky hinge gives more friction. (a) False (b) True

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