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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. The amount of effort needed to raise a load by using a pulley system is determined by
Pulley
Effort
Design loop
The number of pulley wheels
2. Provides direction for the work of the designer
Design brief
Potential energy
Prototypes
Design loop
3. 550 foot- pounds per second
Functional models
Horsepower
Second- class lever
Design
4. When designing a solution to a problem - a problem solver should always
Problems
Effort
Kinetic energy
Generate many alternative solutions
5. The difficulties we must overcome
Screw
Design
Technology
Problems
6. Ways of overcoming difficulties
Solutions
lever
Horsepower
Wheel and axle
7. Involves the effort you put in and the distance over which you maintain the effort
lever
Work
First- class levers
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
8. The weight or resistance on a lever
Mechanical advantage
Load
Resistance
Gears
9. The process of how solutions to problems are developed is
The problem solving process
W = F x d
Block and tackle
Gears
10. Come in a variety of sizes with their teeth straight or curved and inclined at a variety of angles
Effort
Gears
Pulley
Resistance
11. The weight of the obect being moved
Functional models
Resistance
Bevel gears
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
12. 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
Modify your design ideas and choose another alternative
Invention
Chain hoist
13. The energy of motion
Screw
Gears
Design loop
Kinetic energy
14. The development of something completely new
Appearance model
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Fixed pulley
Invention
15. The metric unit for measuring work
Problems
The problem solving process
Specifications
Newton - meter
16. Provides a framework for design and problem solving work
Friction
Chain hoist
Design loop
Prototypes
17. The study of how human beings best interact with technology
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Design loop
Load
Ergonomics
18. Operational models used to test the mechanical or electrical systems
Horsepower
Design brief
Functional models
Second- class lever
19. When a machine multiplies the effort being used
Problems
Work
Mechanical advantage
Load
20. The scientific formula for work is
Newton - meter
W = F x d
Screw
Technology
21. The force applied to a lever
Brainstorming
Design loop
Effort
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
22. Seeks to explain and describe the physical world
Work
Science
Modify your design ideas and choose another alternative
Chain hoist
23. Shows what a product will look like when it is produced
Appearance model
Work
Foot- pounds
Law of Conservation of Energy
24. 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
Innovation
Resistance
Put your ideas - designs - and calculations on paper
25. Seeks to meer our needs and wants and to extend our capabilities
Brainstorming
Technology
Problems
First- class lever
26. The generation of ideas for solutions by a group is known as
Work
Design loop
Brainstorming
Second- class lever
27. 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
Horsepower
First- class levers
Solutions
Pulley
28. Models that function and look like the finished product but are usually hand- built
Brainstorming
Prototypes
Pulley
Design loop
29. A shaft with a screw thread that meshes with a toothed wheel to alter the direction of motion - and change the speed and force
Effort
Resistance
Design loop
Worm gears
30. Machines are used to make work easier. How does a machine accomplish this?
Law of Conservation of Energy
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Third- class lever
Effort
31. The planned process of change
Power
Design loop
Design
Specifications
32. A bar or rod that tilts on a pivot - or fulcrum
The problem solving process
Foot- pounds
Lever
Chain hoist
33. 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
Pulley
Mechanical advantage
lever
Solutions
34. Work divided by time
Power
Functional models
Problems
Block and tackle
35. A lever in which the fulcrum is between the effort and the load
Screw
Work
Innovation
First- class lever
36. Energy of position
Lever
Potential energy
Effort
Work
37. Which is not a true statement about gears?
Second- class lever
Innovation
All gears are shaped like wheels with straight teeth that mesh with other wheels with straight teeth
Effort
38. Consists of an endless chain looped around three pulleys
Chain hoist
Rack and pinion gears
Wheel and axle
Block and tackle
39. Changes and improvements made to products already invented are
Fulcrum
Movable pulley
Innovations
Design brief
40. Two gear wheels that intermesh in the same plane - regulating the speed or force of motion and reversing its direction
Third- class lever
Brainstorming
Spur gears
Gears
41. A guide to help make problem solving in technology more effective
Invention
Science
Design loop
Power
42. If you generate alternative solutions and begin to build your best solution - but you have problems building your design - what should you do?
Prototypes
Effort
Modify your design ideas and choose another alternative
Design loop
43. A machine in which a lever rotates around a fixed point
Spur gears
Specifications
Horsepower
Wheel and axle
44. The force (push or pull) used to do work
Block and tackle
Chain hoist
Appearance model
Effort
45. A wheel that meshes with a sliding toothed bar - converting rotary motion to reciprocating (to- and- fro)
Energy
Rack and pinion gears
W = F x d
Brainstorming
46. A lever in which the fulcrum is at one end - and the effort is at the other end
Bevel gears
Lever
Second- class lever
Fulcrum
47. Levers in which the fulcrum is always placed between the effort and the load are called
Design loop
Design brief
Innovations
First- class levers
48. The ability to do work
Gears
First- class levers
Design loop
Energy
49. Provides problem clarification and specification
Design brief
Solutions
Load
Design loop
50. A lever in which the fulcrum is at one end - and the load is at the other end
Decreases the effort needed to move a load - transfers speed or force - and changes the direction of the effort applied
Gears
Worm gears
Third- class lever