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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 wheel that meshes with a sliding toothed bar - converting rotary motion to reciprocating (to- and- fro)
Rack and pinion gears
First- class lever
Appearance model
Work
2. 550 foot- pounds per second
Horsepower
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Second- class lever
Friction
3. The process of how solutions to problems are developed is
Ergonomics
Put your ideas - designs - and calculations on paper
The problem solving process
Spur gears
4. A machine in which a lever rotates around a fixed point
Brainstorming
Wheel and axle
Design loop
Effort
5. Two gear wheels that intermesh in the same plane - regulating the speed or force of motion and reversing its direction
Spur gears
Pulley
Fixed pulley
Power
6. The force (push or pull) used to do work
Effort
Block and tackle
Science
Ergonomics
7. The metric unit for measuring work
Spur gears
The number of pulley wheels
Innovation
Newton - meter
8. The energy of motion
Kinetic energy
Worm gears
Mechanical advantage
W = F x d
9. 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
Second- class lever
First- class lever
Pulley
Mechanical advantage
10. The generation of ideas for solutions by a group is known as
Brainstorming
Work
Fixed pulley
Pulley
11. A pulley that changes direction of effort but provides no mechanical advantage
Fixed pulley
Foot- pounds
Law of Conservation of Energy
Rack and pinion gears
12. Machines are used to make work easier. How does a machine accomplish this?
Worm gears
Screw
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Resistance
13. A bar or rod that tilts on a pivot - or fulcrum
Effort
Science
Specifications
Lever
14. The scientific formula for work is
Power
W = F x d
Brainstorming
Technology
15. The ability to do work
Wheel and axle
Energy
Design
Fulcrum
16. The English unit of measuring work
Design loop
Foot- pounds
Spur gears
The number of pulley wheels
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
Work
Resistance
Foot- pounds
18. Provides direction for the work of the designer
Design brief
Modify your design ideas and choose another alternative
Friction
Worm gears
19. Operational models used to test the mechanical or electrical systems
Functional models
Science
Design
Load
20. 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
Pulley
Block and tackle
Chain hoist
21. Provides a framework for design and problem solving work
Design loop
Pulley
Fixed pulley
Prototypes
22. 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
Foot- pounds
Specifications
Design loop
23. Energy of position
Potential energy
The problem solving process
Work
Technology
24. The weight or resistance on a lever
Worm gears
Load
Wheel and axle
Functional models
25. The development of something completely new
Block and tackle
Mechanical advantage
Invention
Wheel and axle
26. The study of how human beings best interact with technology
Mechanical advantage
Problems
Innovations
Ergonomics
27. Provides problem clarification and specification
Design brief
Third- class lever
Fulcrum
Worm gears
28. Force times distance
Spur gears
Screw
Design
Work
29. The planned process of change
Science
Rack and pinion gears
Design
First- class lever
30. Shows what a product will look like when it is produced
Design loop
The number of pulley wheels
Work
Appearance model
31. When a machine multiplies the effort being used
Prototypes
Mechanical advantage
Design loop
Lever
32. Two wheels that intermest at an angle to change the direction of rotation - also altering speed and force if necessary
Gears
Bevel gears
Invention
Innovation
33. Ways of overcoming difficulties
Potential energy
Solutions
Spur gears
Design brief
34. The improvement of things already invented
Wheel and axle
Modify your design ideas and choose another alternative
Power
Innovation
35. A lever in which the fulcrum is between the effort and the load
First- class lever
Chain hoist
Newton - meter
Design loop
36. 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
First- class levers
Pulley
Ergonomics
Put your ideas - designs - and calculations on paper
37. A lever in which the fulcrum is at one end - and the load is at the other end
Gears
Mechanical advantage
Third- class lever
Rack and pinion gears
38. The turning point of a lever
Prototypes
Fulcrum
Design brief
Specifications
39. A lever in which the fulcrum is at one end - and the effort is at the other end
Modify your design ideas and choose another alternative
Design
Second- class lever
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
40. The weight of the obect being moved
Resistance
Block and tackle
Friction
Brainstorming
41. Come in a variety of sizes with their teeth straight or curved and inclined at a variety of angles
Friction
W = F x d
Work
Gears
42. 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
Resistance
lever
Wheel and axle
43. Seeks to explain and describe the physical world
Modify your design ideas and choose another alternative
Block and tackle
Science
lever
44. Toothed wheels that intermesh with other toothed wheels to transmit motion and force are
Potential energy
Design loop
Gears
Technology
45. Levers in which the fulcrum is always placed between the effort and the load are called
Gears
Innovations
First- class levers
Design loop
46. Involves the effort you put in and the distance over which you maintain the effort
Work
Science
Block and tackle
Energy
47. The difficulties we must overcome
Design loop
Put your ideas - designs - and calculations on paper
Effort
Problems
48. Seeks to meer our needs and wants and to extend our capabilities
Innovations
Pulley
Horsepower
Technology
49. The generation of ideas for solutions
Brainstorming
Pulley
Worm gears
Prototypes
50. Provides a structure for thinking and doing
Gears
Design loop
Effort
First- class lever