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