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