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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. Toothed wheels that intermesh with other toothed wheels to transmit motion and force are
Worm gears
Effort
Third- class lever
Gears
2. Come in a variety of sizes with their teeth straight or curved and inclined at a variety of angles
lever
Generate many alternative solutions
Gears
Horsepower
3. 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
Functional models
lever
Design
Brainstorming
4. Provides a structure for thinking and doing
Law of Conservation of Energy
Design loop
Problems
Work
5. Consists of an endless chain looped around three pulleys
Potential energy
Science
Problems
Chain hoist
6. A lever in which the fulcrum is at one end - and the effort is at the other end
Lever
First- class lever
Second- class lever
Pulley
7. Ways of overcoming difficulties
Design brief
Second- class lever
Solutions
Worm gears
8. Changes and improvements made to products already invented are
Innovations
Load
Energy
Brainstorming
9. Work divided by time
Innovations
Work
Brainstorming
Power
10. The turning point of a lever
Fulcrum
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
The number of pulley wheels
Invention
11. A machine in which a lever rotates around a fixed point
Appearance model
Wheel and axle
Technology
Design loop
12. If you generate alternative solutions and begin to build your best solution - but you have problems building your design - what should you do?
Modify your design ideas and choose another alternative
Block and tackle
Pulley
First- class lever
13. Provides direction for the work of the designer
Prototypes
Effort
Pulley
Design brief
14. Provides problem clarification and specification
Design brief
First- class lever
Solutions
Second- class lever
15. The planned process of change
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Brainstorming
First- class levers
Design
16. A lever in which the fulcrum is at one end - and the load is at the other end
Appearance model
Technology
Third- class lever
Innovations
17. A pulley that makes work easier
The problem solving process
Movable pulley
Modify your design ideas and choose another alternative
Lever
18. 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
Design
Design brief
Chain hoist
19. 550 foot- pounds per second
Science
The number of pulley wheels
Design brief
Horsepower
20. The ability to do work
Kinetic energy
Energy
Movable pulley
Specifications
21. The weight or resistance on a lever
Generate many alternative solutions
Innovation
Mechanical advantage
Load
22. The improvement of things already invented
Load
Innovation
Potential energy
Science
23. Shows what a product will look like when it is produced
Work
Chain hoist
Rack and pinion gears
Appearance model
24. Models that function and look like the finished product but are usually hand- built
Load
Invention
Pulley
Prototypes
25. A pulley that changes direction of effort but provides no mechanical advantage
Fixed pulley
Technology
Solutions
Problems
26. A lever in which the fulcrum is between the effort and the load
Foot- pounds
Brainstorming
First- class lever
Rack and pinion gears
27. The English unit of measuring work
Foot- pounds
Gears
First- class lever
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
28. Energy may change form but the amount of energy remains the same
The problem solving process
Movable pulley
Law of Conservation of Energy
The number of pulley wheels
29. Machines are used to make work easier. How does a machine accomplish this?
Resistance
Effort
The problem solving process
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
30. Which is not a true statement about gears?
Generate many alternative solutions
Design loop
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Kinetic energy
31. The weight of the obect being moved
Resistance
Fulcrum
Spur gears
Functional models
32. Describes the limitations and requirements of the project's solution
First- class lever
Specifications
Movable pulley
Rack and pinion gears
33. Involves the effort you put in and the distance over which you maintain the effort
Spur gears
The problem solving process
Bevel gears
Work
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?
Prototypes
Power
Put your ideas - designs - and calculations on paper
Worm gears
35. The process of how solutions to problems are developed is
Design loop
Bevel gears
Lever
The problem solving process
36. Seeks to meer our needs and wants and to extend our capabilities
Technology
Science
Newton - meter
Design brief
37. A guide to help make problem solving in technology more effective
Chain hoist
Potential energy
Brainstorming
Design loop
38. 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
Design loop
The problem solving process
Friction
Block and tackle
39. Two gear wheels that intermesh in the same plane - regulating the speed or force of motion and reversing its direction
Spur gears
Problems
Specifications
Worm gears
40. An inclined plane which is wrapped around a cylinder
Chain hoist
Movable pulley
Problems
Screw
41. The generation of ideas for solutions by a group is known as
Design loop
Brainstorming
Law of Conservation of Energy
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
42. When a machine multiplies the effort being used
Ergonomics
Mechanical advantage
Appearance model
Problems
43. Levers in which the fulcrum is always placed between the effort and the load are called
First- class levers
The number of pulley wheels
Power
The problem solving process
44. More than one pulley working together
Brainstorming
Block and tackle
Ergonomics
The number of pulley wheels
45. 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
Chain hoist
Resistance
Work
46. The scientific formula for work is
Work
W = F x d
Technology
Prototypes
47. The metric unit for measuring work
Newton - meter
Technology
Screw
Science
48. The force (push or pull) used to do work
Effort
Spur gears
Problems
Friction
49. 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
Horsepower
Chain hoist
Potential energy
50. Energy of position
Effort
Generate many alternative solutions
Newton - meter
Potential energy