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