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Test your basic knowledge |
Introduction To Engineering - 7
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Which is not a true statement about gears?
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Block and tackle
Lever
First- class levers
2. A shaft with a screw thread that meshes with a toothed wheel to alter the direction of motion - and change the speed and force
Worm gears
Bevel gears
Friction
Resistance
3. The force (push or pull) used to do work
Generate many alternative solutions
Effort
Problems
Design
4. When a machine multiplies the effort being used
lever
Mechanical advantage
Generate many alternative solutions
Design brief
5. A fixed wheel with a rope or chain that is attached to a load - used to change the direction of a force or to lift heavy objects - is a
Worm gears
Pulley
Work
Power
6. Provides a framework for design and problem solving work
Modify your design ideas and choose another alternative
Screw
Work
Design loop
7. The study of how human beings best interact with technology
Ergonomics
Science
Potential energy
Specifications
8. The development of something completely new
Potential energy
Power
Invention
The problem solving process
9. The generation of ideas for solutions
Bevel gears
Brainstorming
Solutions
Fixed pulley
10. Operational models used to test the mechanical or electrical systems
The number of pulley wheels
Modify your design ideas and choose another alternative
Functional models
Second- class lever
11. Energy of position
Chain hoist
Design brief
Effort
Potential energy
12. The weight or resistance on a lever
The number of pulley wheels
Load
Movable pulley
Specifications
13. Seeks to meer our needs and wants and to extend our capabilities
Technology
Kinetic energy
Functional models
Pulley
14. A pulley that makes work easier
Prototypes
Bevel gears
Movable pulley
Resistance
15. A system of pulleys that consists of one rope wound around two separate sets of pulley - each of which is free to rotate independently on the same axle
Energy
Block and tackle
Effort
Pulley
16. A lever in which the fulcrum is at one end - and the load is at the other end
Newton - meter
Third- class lever
Functional models
Movable pulley
17. The English unit of measuring work
Science
Foot- pounds
Block and tackle
First- class lever
18. The scientific formula for work is
Rack and pinion gears
W = F x d
Specifications
The problem solving process
19. A lever in which the fulcrum is between the effort and the load
First- class lever
Effort
Movable pulley
Pulley
20. Consists of an endless chain looped around three pulleys
Chain hoist
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Second- class lever
Lever
21. A pulley that changes direction of effort but provides no mechanical advantage
Resistance
Innovations
Fixed pulley
Energy
22. The improvement of things already invented
Functional models
Invention
Brainstorming
Innovation
23. The force applied to a lever
Design loop
W = F x d
Effort
Gears
24. A wheel that meshes with a sliding toothed bar - converting rotary motion to reciprocating (to- and- fro)
Rack and pinion gears
Ergonomics
Chain hoist
Lever
25. When designing a solution to a problem - a problem solver should always
Put your ideas - designs - and calculations on paper
Problems
Generate many alternative solutions
Design brief
26. Involves the effort you put in and the distance over which you maintain the effort
Innovation
Friction
Design loop
Work
27. Two wheels that intermest at an angle to change the direction of rotation - also altering speed and force if necessary
Bevel gears
Modify your design ideas and choose another alternative
Technology
lever
28. Provides problem clarification and specification
Bevel gears
Power
Design brief
Load
29. The turning point of a lever
Fulcrum
Lever
Mechanical advantage
Work
30. Toothed wheels that intermesh with other toothed wheels to transmit motion and force are
Resistance
Invention
Gears
Law of Conservation of Energy
31. Models that function and look like the finished product but are usually hand- built
Energy
Innovation
lever
Prototypes
32. A guide to help make problem solving in technology more effective
Design loop
The problem solving process
Problems
Load
33. A wheel fixed to a support with a rope that is run over the wheel to change the direction of a force applied to the rope
Fulcrum
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Foot- pounds
Pulley
34. A bar or rod that tilts on a pivot - or fulcrum - used to overcome a resistance or to raise a weight when force is applied is a
Worm gears
Ergonomics
lever
Modify your design ideas and choose another alternative
35. Changes and improvements made to products already invented are
Design loop
Fulcrum
Appearance model
Innovations
36. A bar or rod that tilts on a pivot - or fulcrum
Lever
Wheel and axle
Resistance
Innovations
37. The amount of effort needed to raise a load by using a pulley system is determined by
Law of Conservation of Energy
The number of pulley wheels
Innovations
Brainstorming
38. An inclined plane which is wrapped around a cylinder
Resistance
Mechanical advantage
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Screw
39. Provides a structure for thinking and doing
Second- class lever
Design loop
lever
Spur gears
40. The weight of the obect being moved
Resistance
Design brief
Lever
Design loop
41. Seeks to explain and describe the physical world
Solutions
Put your ideas - designs - and calculations on paper
Science
Fixed pulley
42. Machines are used to make work easier. How does a machine accomplish this?
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Innovations
Design
Appearance model
43. The metric unit for measuring work
Newton - meter
Technology
Appearance model
Friction
44. Provides direction for the work of the designer
Worm gears
Design
Kinetic energy
Design brief
45. Ways of overcoming difficulties
The number of pulley wheels
Effort
Wheel and axle
Solutions
46. Describes the limitations and requirements of the project's solution
Pulley
Brainstorming
Mechanical advantage
Specifications
47. Levers in which the fulcrum is always placed between the effort and the load are called
First- class levers
Pulley
Load
Work
48. Shows what a product will look like when it is produced
Load
The problem solving process
Screw
Appearance model
49. The planned process of change
Technology
Movable pulley
Design
Fulcrum
50. Two gear wheels that intermesh in the same plane - regulating the speed or force of motion and reversing its direction
Brainstorming
Fixed pulley
Worm gears
Spur gears