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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. A lever in which the fulcrum is at one end - and the load is at the other end
Design brief
Pulley
Third- class lever
Ergonomics
2. Force times distance
Rack and pinion gears
Work
Functional models
Chain hoist
3. The ability to do work
Worm gears
Energy
Law of Conservation of Energy
Invention
4. 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
lever
Second- class lever
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Ergonomics
5. The metric unit for measuring work
Newton - meter
The problem solving process
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Second- class lever
6. A shaft with a screw thread that meshes with a toothed wheel to alter the direction of motion - and change the speed and force
Generate many alternative solutions
First- class levers
Worm gears
Effort
7. The force applied to a lever
Effort
Design loop
Gears
Design brief
8. Shows what a product will look like when it is produced
Kinetic energy
Pulley
Appearance model
Technology
9. Energy of position
Spur gears
Pulley
Potential energy
Block and tackle
10. Machines are used to make work easier. How does a machine accomplish this?
Foot- pounds
Generate many alternative solutions
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Design brief
11. Changes and improvements made to products already invented are
Work
Innovations
Effort
W = F x d
12. More than one pulley working together
Solutions
Horsepower
Work
Block and tackle
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
Design brief
Pulley
The problem solving process
Kinetic energy
14. A guide to help make problem solving in technology more effective
Block and tackle
Design loop
Lever
Invention
15. Models that function and look like the finished product but are usually hand- built
Solutions
Horsepower
Prototypes
Effort
16. The weight of the obect being moved
Gears
Resistance
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Design brief
17. Seeks to meer our needs and wants and to extend our capabilities
Wheel and axle
Technology
Generate many alternative solutions
Brainstorming
18. The force (push or pull) used to do work
Effort
Modify your design ideas and choose another alternative
Design loop
Block and tackle
19. 550 foot- pounds per second
Mechanical advantage
Block and tackle
Horsepower
Bevel gears
20. A bar or rod that tilts on a pivot - or fulcrum
Lever
Pulley
Science
Innovations
21. Provides a structure for thinking and doing
Chain hoist
Bevel gears
Design loop
Wheel and axle
22. A machine in which a lever rotates around a fixed point
Innovation
Pulley
Wheel and axle
Technology
23. Toothed wheels that intermesh with other toothed wheels to transmit motion and force are
Potential energy
Design loop
Gears
Worm gears
24. An inclined plane which is wrapped around a cylinder
Third- class lever
Foot- pounds
Screw
Friction
25. The generation of ideas for solutions by a group is known as
Brainstorming
Law of Conservation of Energy
lever
Effort
26. Energy may change form but the amount of energy remains the same
Law of Conservation of Energy
Invention
Design loop
lever
27. The improvement of things already invented
Newton - meter
Friction
Innovation
Invention
28. The difficulties we must overcome
First- class lever
Rack and pinion gears
Chain hoist
Problems
29. Consists of an endless chain looped around three pulleys
Power
Chain hoist
Design brief
Friction
30. The English unit of measuring work
Power
Invention
Foot- pounds
W = F x d
31. A wheel that meshes with a sliding toothed bar - converting rotary motion to reciprocating (to- and- fro)
Work
Lever
Rack and pinion gears
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
32. Operational models used to test the mechanical or electrical systems
Kinetic energy
Wheel and axle
Functional models
Fixed pulley
33. A lever in which the fulcrum is between the effort and the load
Generate many alternative solutions
First- class lever
Solutions
Fixed pulley
34. The weight or resistance on a lever
Potential energy
The number of pulley wheels
Load
Design loop
35. Seeks to explain and describe the physical world
Rack and pinion gears
Science
Chain hoist
Friction
36. The turning point of a lever
Fulcrum
Block and tackle
Innovation
Newton - meter
37. Come in a variety of sizes with their teeth straight or curved and inclined at a variety of angles
Gears
Design loop
Specifications
Block and tackle
38. Describes the limitations and requirements of the project's solution
Block and tackle
Specifications
Horsepower
Friction
39. Ways of overcoming difficulties
Innovations
Design brief
Solutions
Effort
40. The scientific formula for work is
Put your ideas - designs - and calculations on paper
Mechanical advantage
Innovation
W = F x d
41. If you generate alternative solutions and begin to build your best solution - but you have problems building your design - what should you do?
Effort
Gears
Worm gears
Modify your design ideas and choose another alternative
42. A pulley that makes work easier
Put your ideas - designs - and calculations on paper
Movable pulley
Gears
Specifications
43. The development of something completely new
Horsepower
Chain hoist
Innovation
Invention
44. A pulley that changes direction of effort but provides no mechanical advantage
Fixed pulley
Appearance model
Friction
Block and tackle
45. When designing a solution to a problem - a problem solver should always
Appearance model
Generate many alternative solutions
Design loop
Power
46. Provides direction for the work of the designer
Worm gears
Design brief
Effort
Lever
47. 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
Generate many alternative solutions
Second- class lever
Block and tackle
Design
48. Involves the effort you put in and the distance over which you maintain the effort
Work
Problems
Put your ideas - designs - and calculations on paper
Friction
49. 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?
Put your ideas - designs - and calculations on paper
Solutions
Resistance
Foot- pounds
50. The process of how solutions to problems are developed is
Design loop
Gears
The problem solving process
Fixed pulley