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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. The process of how solutions to problems are developed is
Modify your design ideas and choose another alternative
Fixed pulley
Block and tackle
The problem solving process
2. The difficulties we must overcome
Chain hoist
Problems
Innovations
Modify your design ideas and choose another alternative
3. Energy may change form but the amount of energy remains the same
Functional models
The problem solving process
Law of Conservation of Energy
Resistance
4. Work divided by time
Generate many alternative solutions
The number of pulley wheels
Specifications
Power
5. If you generate alternative solutions and begin to build your best solution - but you have problems building your design - what should you do?
Energy
Third- class lever
Modify your design ideas and choose another alternative
First- class levers
6. A lever in which the fulcrum is between the effort and the load
Effort
First- class lever
Foot- pounds
Second- class lever
7. When a machine multiplies the effort being used
Generate many alternative solutions
The problem solving process
Mechanical advantage
Load
8. 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
Prototypes
Fulcrum
Put your ideas - designs - and calculations on paper
Block and tackle
9. More than one pulley working together
Block and tackle
Design loop
Fixed pulley
Prototypes
10. Come in a variety of sizes with their teeth straight or curved and inclined at a variety of angles
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Pulley
Gears
Screw
11. A wheel that meshes with a sliding toothed bar - converting rotary motion to reciprocating (to- and- fro)
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Block and tackle
First- class levers
Rack and pinion gears
12. Describes the limitations and requirements of the project's solution
Design
Pulley
Innovations
Specifications
13. The development of something completely new
First- class lever
Pulley
Fulcrum
Invention
14. A pulley that changes direction of effort but provides no mechanical advantage
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Fixed pulley
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Work
15. 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
Pulley
Design loop
Design brief
Bevel gears
16. The scientific formula for work is
Block and tackle
Work
W = F x d
Law of Conservation of Energy
17. Provides problem clarification and specification
Design loop
Appearance model
Load
Design brief
18. The generation of ideas for solutions by a group is known as
Block and tackle
Brainstorming
Appearance model
Rack and pinion gears
19. 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
Innovation
Friction
Modify your design ideas and choose another alternative
20. Force times distance
Work
Effort
Worm gears
W = F x d
21. Two gear wheels that intermesh in the same plane - regulating the speed or force of motion and reversing its direction
Design loop
Foot- pounds
Spur gears
Worm gears
22. An inclined plane which is wrapped around a cylinder
Worm gears
Design loop
Law of Conservation of Energy
Screw
23. The energy of motion
Fixed pulley
Kinetic energy
Screw
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
24. Provides direction for the work of the designer
Block and tackle
Design brief
Brainstorming
Kinetic energy
25. Ways of overcoming difficulties
Solutions
Ergonomics
The number of pulley wheels
Pulley
26. The generation of ideas for solutions
Technology
Effort
Innovation
Brainstorming
27. 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
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Design brief
Fulcrum
28. Two wheels that intermest at an angle to change the direction of rotation - also altering speed and force if necessary
Bevel gears
Ergonomics
W = F x d
Lever
29. A shaft with a screw thread that meshes with a toothed wheel to alter the direction of motion - and change the speed and force
Work
Energy
Spur gears
Worm gears
30. The planned process of change
Horsepower
Design
Chain hoist
Design brief
31. A force that opposes motion
Second- class lever
Movable pulley
Horsepower
Friction
32. Models that function and look like the finished product but are usually hand- built
First- class levers
Pulley
Ergonomics
Prototypes
33. A lever in which the fulcrum is at one end - and the effort is at the other end
Second- class lever
Brainstorming
Pulley
Work
34. Which is not a true statement about gears?
Science
Design
Worm gears
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
35. The weight of the obect being moved
Resistance
Third- class lever
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Appearance model
36. A guide to help make problem solving in technology more effective
Load
Gears
Design loop
Innovation
37. The ability to do work
Kinetic energy
Solutions
Effort
Energy
38. When designing a solution to a problem - a problem solver should always
Horsepower
Generate many alternative solutions
Rack and pinion gears
Screw
39. The English unit of measuring work
Power
Foot- pounds
Design brief
Lever
40. Toothed wheels that intermesh with other toothed wheels to transmit motion and force are
Gears
Design brief
Brainstorming
Lever
41. 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
Pulley
Work
Put your ideas - designs - and calculations on paper
Design
42. Provides a framework for design and problem solving work
Block and tackle
Block and tackle
Screw
Design loop
43. Changes and improvements made to products already invented are
Block and tackle
Resistance
Innovations
Design
44. The force (push or pull) used to do work
The problem solving process
Effort
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Put your ideas - designs - and calculations on paper
45. The amount of effort needed to raise a load by using a pulley system is determined by
Ergonomics
The number of pulley wheels
Design brief
Brainstorming
46. A pulley that makes work easier
Technology
Movable pulley
Power
Horsepower
47. Seeks to explain and describe the physical world
Appearance model
Innovation
Modify your design ideas and choose another alternative
Science
48. Provides a structure for thinking and doing
Design loop
Ergonomics
Movable pulley
Appearance model
49. Consists of an endless chain looped around three pulleys
Chain hoist
Foot- pounds
Design loop
Design brief
50. A machine in which a lever rotates around a fixed point
Load
Wheel and axle
Rack and pinion gears
Fulcrum