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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 machine in which a lever rotates around a fixed point
Wheel and axle
Potential energy
First- class levers
Design loop
2. Two gear wheels that intermesh in the same plane - regulating the speed or force of motion and reversing its direction
Gears
Spur gears
Innovation
W = F x d
3. Involves the effort you put in and the distance over which you maintain the effort
Rack and pinion gears
Movable pulley
Design
Work
4. A force that opposes motion
Problems
Solutions
Friction
Third- class lever
5. Seeks to explain and describe the physical world
Movable pulley
Science
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Design loop
6. The weight of the obect being moved
Effort
Problems
Brainstorming
Resistance
7. Shows what a product will look like when it is produced
Appearance model
Work
Effort
Kinetic energy
8. When a machine multiplies the effort being used
Wheel and axle
Mechanical advantage
The problem solving process
Put your ideas - designs - and calculations on paper
9. Models that function and look like the finished product but are usually hand- built
Prototypes
Brainstorming
Movable pulley
Chain hoist
10. The English unit of measuring work
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Foot- pounds
The number of pulley wheels
Pulley
11. Changes and improvements made to products already invented are
Innovations
Potential energy
First- class lever
Put your ideas - designs - and calculations on paper
12. The turning point of a lever
Design loop
Effort
Chain hoist
Fulcrum
13. Provides direction for the work of the designer
Design brief
Kinetic energy
Energy
Pulley
14. 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
Design loop
First- class levers
Rack and pinion gears
15. Provides problem clarification and specification
Foot- pounds
Science
Design brief
Rack and pinion gears
16. Energy may change form but the amount of energy remains the same
Law of Conservation of Energy
Bevel gears
Design loop
W = F x d
17. The amount of effort needed to raise a load by using a pulley system is determined by
Design loop
Kinetic energy
The number of pulley wheels
Effort
18. Energy of position
Gears
Spur gears
Design brief
Potential energy
19. Describes the limitations and requirements of the project's solution
Ergonomics
Specifications
Work
Movable pulley
20. Levers in which the fulcrum is always placed between the effort and the load are called
First- class levers
Generate many alternative solutions
Technology
Effort
21. The generation of ideas for solutions
Wheel and axle
Gears
Design loop
Brainstorming
22. A wheel that meshes with a sliding toothed bar - converting rotary motion to reciprocating (to- and- fro)
Block and tackle
Technology
Fulcrum
Rack and pinion gears
23. The development of something completely new
Energy
Foot- pounds
First- class lever
Invention
24. 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
Newton - meter
Prototypes
Pulley
Mechanical advantage
25. The energy of motion
Work
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Effort
Kinetic energy
26. 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
Effort
First- class lever
Science
27. Come in a variety of sizes with their teeth straight or curved and inclined at a variety of angles
Lever
Gears
Newton - meter
Solutions
28. Work divided by time
Generate many alternative solutions
Mechanical advantage
Power
Friction
29. 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
Second- class lever
Design loop
Design
lever
30. Operational models used to test the mechanical or electrical systems
Functional models
Potential energy
Ergonomics
Resistance
31. 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
Innovation
Potential energy
The number of pulley wheels
32. 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
Mechanical advantage
Design brief
Spur gears
Pulley
33. The planned process of change
Specifications
Put your ideas - designs - and calculations on paper
Design
Design loop
34. The force applied to a lever
Kinetic energy
Effort
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Design loop
35. The generation of ideas for solutions by a group is known as
The number of pulley wheels
Put your ideas - designs - and calculations on paper
Pulley
Brainstorming
36. A lever in which the fulcrum is at one end - and the load is at the other end
Brainstorming
Newton - meter
Third- class lever
Horsepower
37. An inclined plane which is wrapped around a cylinder
Screw
Design brief
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Specifications
38. More than one pulley working together
Block and tackle
Prototypes
First- class levers
Law of Conservation of Energy
39. The improvement of things already invented
Lever
Second- class lever
Innovation
Put your ideas - designs - and calculations on paper
40. Provides a framework for design and problem solving work
Design loop
Worm gears
Brainstorming
Invention
41. Provides a structure for thinking and doing
Design loop
Spur gears
Brainstorming
lever
42. 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
Gears
Put your ideas - designs - and calculations on paper
Design brief
43. 550 foot- pounds per second
Appearance model
Horsepower
Generate many alternative solutions
Third- class lever
44. A lever in which the fulcrum is between the effort and the load
Spur gears
First- class lever
Put your ideas - designs - and calculations on paper
W = F x d
45. Ways of overcoming difficulties
Block and tackle
Potential energy
Solutions
Block and tackle
46. The difficulties we must overcome
Bevel gears
Second- class lever
Problems
Mechanical advantage
47. The force (push or pull) used to do work
Effort
Invention
Friction
Gears
48. Machines are used to make work easier. How does a machine accomplish this?
Screw
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Innovations
Design brief
49. When designing a solution to a problem - a problem solver should always
Generate many alternative solutions
Science
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Design brief
50. The ability to do work
Brainstorming
Gears
Energy
Design brief