SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. Machines are used to make work easier. How does a machine accomplish this?
Bevel gears
Functional models
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Generate many alternative solutions
2. The study of how human beings best interact with technology
Design
Ergonomics
Science
Lever
3. 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
W = F x d
Fixed pulley
Block and tackle
Technology
4. The improvement of things already invented
Invention
Brainstorming
Innovation
lever
5. The generation of ideas for solutions
Block and tackle
Brainstorming
Effort
Second- class lever
6. When a machine multiplies the effort being used
Law of Conservation of Energy
Mechanical advantage
Kinetic energy
Effort
7. The ability to do work
Pulley
Functional models
Pulley
Energy
8. Changes and improvements made to products already invented are
First- class levers
Innovations
Science
Screw
9. A guide to help make problem solving in technology more effective
Invention
Design loop
Fixed pulley
Power
10. Operational models used to test the mechanical or electrical systems
Energy
Work
Functional models
Power
11. Ways of overcoming difficulties
Specifications
Screw
The number of pulley wheels
Solutions
12. 550 foot- pounds per second
Horsepower
Block and tackle
Chain hoist
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
13. A shaft with a screw thread that meshes with a toothed wheel to alter the direction of motion - and change the speed and force
Fulcrum
Gears
Foot- pounds
Worm gears
14. Work divided by time
Resistance
Power
Effort
Law of Conservation of Energy
15. The force applied to a lever
The problem solving process
Screw
Effort
Functional models
16. The planned process of change
Design
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Science
W = F x d
17. The amount of effort needed to raise a load by using a pulley system is determined by
Spur gears
Problems
Movable pulley
The number of pulley wheels
18. Provides problem clarification and specification
Block and tackle
Technology
Design brief
Brainstorming
19. Provides a structure for thinking and doing
The number of pulley wheels
Design brief
Design loop
Innovations
20. The weight or resistance on a lever
Load
Kinetic energy
Block and tackle
Power
21. A bar or rod that tilts on a pivot - or fulcrum
Work
Put your ideas - designs - and calculations on paper
Lever
Newton - meter
22. An inclined plane which is wrapped around a cylinder
Screw
Ergonomics
Spur gears
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
23. A wheel that meshes with a sliding toothed bar - converting rotary motion to reciprocating (to- and- fro)
Ergonomics
Gears
Block and tackle
Rack and pinion gears
24. A lever in which the fulcrum is at one end - and the load is at the other end
Brainstorming
Third- class lever
Friction
lever
25. Models that function and look like the finished product but are usually hand- built
Solutions
Prototypes
Invention
Design
26. 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
Design brief
Movable pulley
Mechanical advantage
lever
27. Consists of an endless chain looped around three pulleys
Third- class lever
Chain hoist
Horsepower
Solutions
28. Involves the effort you put in and the distance over which you maintain the effort
Work
Wheel and axle
Foot- pounds
Bevel gears
29. Provides direction for the work of the designer
Design brief
Functional models
Invention
Lever
30. Come in a variety of sizes with their teeth straight or curved and inclined at a variety of angles
Energy
Innovations
Invention
Gears
31. The energy of motion
Friction
Third- class lever
Kinetic energy
W = F x d
32. Two gear wheels that intermesh in the same plane - regulating the speed or force of motion and reversing its direction
Technology
Spur gears
Block and tackle
Science
33. The process of how solutions to problems are developed is
Fulcrum
The problem solving process
Design loop
Wheel and axle
34. A machine in which a lever rotates around a fixed point
Generate many alternative solutions
The problem solving process
Wheel and axle
Lever
35. The turning point of a lever
Effort
Foot- pounds
Energy
Fulcrum
36. Force times distance
Technology
Work
Effort
Resistance
37. A pulley that makes work easier
Chain hoist
Movable pulley
Energy
First- class levers
38. Toothed wheels that intermesh with other toothed wheels to transmit motion and force are
Brainstorming
Gears
Resistance
Foot- pounds
39. Shows what a product will look like when it is produced
W = F x d
Appearance model
Newton - meter
Specifications
40. The metric unit for measuring work
Newton - meter
Design loop
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Innovations
41. More than one pulley working together
Potential energy
Fixed pulley
Appearance model
Block and tackle
42. A lever in which the fulcrum is between the effort and the load
Lever
Brainstorming
Science
First- class lever
43. 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
Design loop
Pulley
Spur gears
Block and tackle
44. Provides a framework for design and problem solving work
Gears
Third- class lever
Modify your design ideas and choose another alternative
Design loop
45. The English unit of measuring work
Design
Design brief
Effort
Foot- pounds
46. The difficulties we must overcome
Problems
Law of Conservation of Energy
Load
Innovations
47. The force (push or pull) used to do work
Newton - meter
Invention
Law of Conservation of Energy
Effort
48. 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
Innovations
Bevel gears
Design brief
49. Seeks to meer our needs and wants and to extend our capabilities
Technology
Pulley
Solutions
Design loop
50. A pulley that changes direction of effort but provides no mechanical advantage
Gears
Modify your design ideas and choose another alternative
Put your ideas - designs - and calculations on paper
Fixed pulley