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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?
Specifications
Science
Mechanical advantage
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
2. Toothed wheels that intermesh with other toothed wheels to transmit motion and force are
Power
Gears
Innovations
Worm gears
3. Models that function and look like the finished product but are usually hand- built
Prototypes
Movable pulley
Solutions
Mechanical advantage
4. 550 foot- pounds per second
Block and tackle
Problems
Horsepower
Specifications
5. The weight or resistance on a lever
Design loop
Load
Pulley
Friction
6. The amount of effort needed to raise a load by using a pulley system is determined by
Friction
Prototypes
Design loop
The number of pulley wheels
7. Describes the limitations and requirements of the project's solution
Design loop
Functional models
Specifications
Effort
8. Provides problem clarification and specification
Design brief
Block and tackle
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Fixed pulley
9. More than one pulley working together
Fixed pulley
The problem solving process
Specifications
Block and tackle
10. The turning point of a lever
Fulcrum
Generate many alternative solutions
Work
Design brief
11. A lever in which the fulcrum is between the effort and the load
Design loop
Block and tackle
Prototypes
First- class lever
12. Consists of an endless chain looped around three pulleys
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Specifications
Chain hoist
First- class lever
13. 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
Innovation
Ergonomics
Appearance model
Pulley
14. Force times distance
Foot- pounds
Work
Bevel gears
Fixed pulley
15. The scientific formula for work is
Rack and pinion gears
Functional models
W = F x d
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
16. Changes and improvements made to products already invented are
Design loop
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Innovations
Design brief
17. A lever in which the fulcrum is at one end - and the load is at the other end
Appearance model
Foot- pounds
Friction
Third- class lever
18. Provides a framework for design and problem solving work
Innovations
Block and tackle
Design loop
Problems
19. A bar or rod that tilts on a pivot - or fulcrum
Lever
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Third- class lever
Fixed pulley
20. Machines are used to make work easier. How does a machine accomplish this?
Effort
Newton - meter
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Brainstorming
21. When designing a solution to a problem - a problem solver should always
Generate many alternative solutions
Brainstorming
Kinetic energy
Spur gears
22. A pulley that makes work easier
Screw
Wheel and axle
Movable pulley
Design loop
23. An inclined plane which is wrapped around a cylinder
Generate many alternative solutions
Third- class lever
Block and tackle
Screw
24. Involves the effort you put in and the distance over which you maintain the effort
Generate many alternative solutions
Load
Work
Design
25. The ability to do work
Spur gears
Energy
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Friction
26. The planned process of change
Work
Design
Modify your design ideas and choose another alternative
Screw
27. A force that opposes motion
Gears
Friction
Fulcrum
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
28. The force applied to a lever
Design loop
Resistance
Design loop
Effort
29. The generation of ideas for solutions by a group is known as
Brainstorming
Effort
Foot- pounds
First- class levers
30. 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
Potential energy
Block and tackle
Foot- pounds
Movable pulley
31. Provides a structure for thinking and doing
Functional models
Second- class lever
Design loop
The problem solving process
32. Seeks to explain and describe the physical world
Block and tackle
Science
Fulcrum
Invention
33. The generation of ideas for solutions
Brainstorming
Wheel and axle
Technology
Block and tackle
34. The force (push or pull) used to do work
Brainstorming
Specifications
Effort
Friction
35. The energy of motion
Kinetic energy
Horsepower
Fixed pulley
The number of pulley wheels
36. Energy of position
Innovations
Horsepower
Brainstorming
Potential energy
37. The difficulties we must overcome
Ergonomics
Problems
Design loop
Gears
38. The improvement of things already invented
Invention
Innovation
Fixed pulley
Brainstorming
39. Levers in which the fulcrum is always placed between the effort and the load are called
Work
First- class levers
Spur gears
Effort
40. Ways of overcoming difficulties
The problem solving process
Design brief
Put your ideas - designs - and calculations on paper
Solutions
41. A pulley that changes direction of effort but provides no mechanical advantage
The problem solving process
Power
Solutions
Fixed pulley
42. The process of how solutions to problems are developed is
Design loop
Design brief
The problem solving process
Wheel and axle
43. When generating ideas for a solution to a problem - it is important to do which of the following in order to effectively and visually communicate these ideas for use in construction drawings?
Design brief
Generate many alternative solutions
Work
Put your ideas - designs - and calculations on paper
44. Come in a variety of sizes with their teeth straight or curved and inclined at a variety of angles
Bevel gears
Design brief
Gears
Movable pulley
45. The study of how human beings best interact with technology
Design loop
Innovation
Ergonomics
Second- class lever
46. Work divided by time
Power
Work
Bevel gears
Fulcrum
47. A lever in which the fulcrum is at one end - and the effort is at the other end
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Potential energy
Innovations
Second- class lever
48. Two wheels that intermest at an angle to change the direction of rotation - also altering speed and force if necessary
Bevel gears
Chain hoist
Design loop
Law of Conservation of Energy
49. When a machine multiplies the effort being used
Mechanical advantage
Design
Design brief
Effort
50. The metric unit for measuring work
Block and tackle
Resistance
Newton - meter
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth