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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 force (push or pull) used to do work
Design loop
Work
Effort
Problems
2. Describes the limitations and requirements of the project's solution
Specifications
Pulley
Foot- pounds
Ergonomics
3. Levers in which the fulcrum is always placed between the effort and the load are called
Friction
First- class levers
Design loop
Screw
4. A lever in which the fulcrum is at one end - and the load is at the other end
Law of Conservation of Energy
Movable pulley
Friction
Third- class lever
5. The scientific formula for work is
Appearance model
Spur gears
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
W = F x d
6. A force that opposes motion
Problems
Friction
Prototypes
Block and tackle
7. The turning point of a lever
Solutions
Third- class lever
Fulcrum
Spur gears
8. A pulley that makes work easier
Design
Spur gears
Movable pulley
Mechanical advantage
9. 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
Block and tackle
Second- class lever
Design brief
10. 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
The number of pulley wheels
Worm gears
Effort
11. Changes and improvements made to products already invented are
Gears
Worm gears
Design brief
Innovations
12. Toothed wheels that intermesh with other toothed wheels to transmit motion and force are
Gears
Generate many alternative solutions
Foot- pounds
Horsepower
13. The amount of effort needed to raise a load by using a pulley system is determined by
The number of pulley wheels
Fixed pulley
Screw
Invention
14. The metric unit for measuring work
Horsepower
Gears
Newton - meter
Design
15. A lever in which the fulcrum is between the effort and the load
Work
Appearance model
Brainstorming
First- class lever
16. A bar or rod that tilts on a pivot - or fulcrum
Functional models
Lever
Innovations
Pulley
17. Energy may change form but the amount of energy remains the same
Horsepower
Design loop
Law of Conservation of Energy
Load
18. If you generate alternative solutions and begin to build your best solution - but you have problems building your design - what should you do?
Work
Wheel and axle
Modify your design ideas and choose another alternative
Design loop
19. Come in a variety of sizes with their teeth straight or curved and inclined at a variety of angles
Rack and pinion gears
Prototypes
Gears
Brainstorming
20. A pulley that changes direction of effort but provides no mechanical advantage
Technology
Problems
W = F x d
Fixed pulley
21. 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
Screw
Resistance
lever
Modify your design ideas and choose another alternative
22. The weight of the obect being moved
Resistance
Rack and pinion gears
Technology
Gears
23. The difficulties we must overcome
W = F x d
Specifications
Screw
Problems
24. The generation of ideas for solutions by a group is known as
Brainstorming
First- class levers
Lever
First- class lever
25. Models that function and look like the finished product but are usually hand- built
Brainstorming
Prototypes
Ergonomics
Problems
26. 550 foot- pounds per second
Pulley
Fixed pulley
Work
Horsepower
27. The ability to do work
Worm gears
Second- class lever
Effort
Energy
28. Operational models used to test the mechanical or electrical systems
Brainstorming
Put your ideas - designs - and calculations on paper
Functional models
Design brief
29. Which is not a true statement about gears?
Work
Pulley
Design loop
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
30. Two gear wheels that intermesh in the same plane - regulating the speed or force of motion and reversing its direction
Spur gears
Pulley
Mechanical advantage
Foot- pounds
31. 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
Bevel gears
Design
Power
32. Involves the effort you put in and the distance over which you maintain the effort
Horsepower
Technology
Prototypes
Work
33. The force applied to a lever
Effort
Fulcrum
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Design
34. Provides direction for the work of the designer
Invention
Design brief
Appearance model
Gears
35. When designing a solution to a problem - a problem solver should always
Chain hoist
Generate many alternative solutions
Problems
Invention
36. Seeks to explain and describe the physical world
Generate many alternative solutions
Design loop
Work
Science
37. The process of how solutions to problems are developed is
The number of pulley wheels
The problem solving process
Generate many alternative solutions
Rack and pinion gears
38. The study of how human beings best interact with technology
Power
Technology
Ergonomics
Spur gears
39. Provides a structure for thinking and doing
Functional models
Design loop
Fixed pulley
Second- class lever
40. Seeks to meer our needs and wants and to extend our capabilities
Design loop
Technology
First- class levers
Pulley
41. A wheel that meshes with a sliding toothed bar - converting rotary motion to reciprocating (to- and- fro)
The number of pulley wheels
Third- class lever
Rack and pinion gears
Science
42. Two wheels that intermest at an angle to change the direction of rotation - also altering speed and force if necessary
Third- class lever
Bevel gears
Mechanical advantage
Load
43. Work divided by time
Innovations
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Ergonomics
Power
44. A shaft with a screw thread that meshes with a toothed wheel to alter the direction of motion - and change the speed and force
Resistance
Worm gears
The number of pulley wheels
Design brief
45. The generation of ideas for solutions
Pulley
The problem solving process
Brainstorming
Friction
46. Machines are used to make work easier. How does a machine accomplish this?
Lever
Block and tackle
Friction
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
47. Force times distance
Design
Work
Specifications
The number of pulley wheels
48. Ways of overcoming difficulties
Solutions
Foot- pounds
Appearance model
First- class levers
49. When a machine multiplies the effort being used
Problems
Second- class lever
Mechanical advantage
Design brief
50. The planned process of change
Design brief
Work
Design
Law of Conservation of Energy