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