SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Mechanical Engineering
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 device that uses energy to do work to accomplish some desired activity - They do not produce energy - but they do transmit and transform energy - Machines can transmit a force - control its motion - and change its direction - a system of components
Second Stroke (4 Stroke Engine)
Engineers and scientists need a common language
Machine
Force Equation
2. Used to measure or quantify -US Common: Absolute and Gravitational -SI: absolute
Units
Second Stroke (Diesel Engine)
Torque
Fluid
3. Derived from - or composed of - base dimensions i.e. Area (length x width) - Weight (mass x acceleration) - velocity (length/time)
Disc Breaks
Volume
Hydraulic Cylinders
Derived Dimension
4. Describes how applied forces bring a body into motion
Hydraulics
Force Equation
Units
Dynamics
5. For every action there is an equal and opposite reaction -Force -F=mg -Earth exerts a force on all of us
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
6. Four Stroke Engine -Used in hotter areas because more efficient -Higher compression ratio than gasoline
Diesel Engine
Newton's Second Law
Area of a circle equation
2 Stroke Engine
7. The designing of machines that contribute to society and our quality of life - Mechanical engineers apply the principles of mathematics - chemistry - and physics to solve real- world problems
Fourth Stroke (rotary)
Forces
Mechanical Engineering
Pascal's Principle
8. If a force causes rotations -Vector- Machines can have more than one torque-Units: foot- pound and newton - meter - i.e. engines - airplanes - propeller
Pythagorean Theorem
Torque
Equation for Mechanical Advantage regarding inclined planes
Direction of Forces
9. Mass can neither by created nor destroyed - only transformed
First Stroke (2 Stroke Engine)
Mechanics
Fluid Power
Law of Conservation of Mass
10. Can be applied:-By direct contact: push - pull - twist -At a distance: gravity - magnetism Can change: speed - direction - shape - units of force
Mechanics describe how forces affect a body
Power
Forces
Pythagorean Theorem
11. Work/force or vertical distance/sloping distance
Equation for Mechanical Advantage regarding inclined planes
Drum Brakes
Dynamics
Third Stroke (4 Stroke Engine)
12. Compression-Tension-Shear
Moment Arm Equation
System
Vectors
Direction of Forces
13. (pi) x (radius)^2
Hybrid Parallel
Compression
Applied Brakes
Area of a circle equation
14. Length x Width x Height
Internal Combustion Engine Types
Compression
Volume
Mechanics
15. Brake pedal and linkage - Master Cylinder - Wheel cylinders (4) - Hydraulic lines - Hydraulic fluid - Mechanical advantage is provided by the foot pedal to the booster (level) - A greater force is applied on the wheel cylinders than on the brake peda
Hydraulic Cylinders
First Stroke (4 Stroke Engine)
Force lets us do work on a system
Applied Brakes
16. Body in motion (car)
Area of a circle equation
Translation
Hybrid
Dynamics
17. Intake of fuel and air mixture - compression of mixture by piston
Mechanics describe how forces affect a body
First Stroke (2 Stroke Engine)
Internal Combustion Engine Types
Dynamics
18. Mass x acceleration
Force Equation
Mechanical Advantage Equation
Third Stroke (4 Stroke Engine)
Second Stroke (2 Stroke Engine)
19. Translation (slide) -Rotate -Slide and Rotate Together
Conversions
Result of Applying a force to a rigid body at rest
Hydrodynamics
Base Dimensions
20. Compression of fuel mix
Steam Engine
Volume
Surroundings
Second Stroke (rotary)
21. Force x Distance
Moment Arm Equation
Machine
Power
Aerodynamics
22. Allows comparison between different measuring systems and units - Necessary to market internationally
Fourth Stroke (Diesel Engine)
Rotation
System International (SI)
Conversions
23. Movement along a line (reciprocal or linear motion) -Units: feet and meters
Area Equation
4 Stroke Engine
Translation
Newton's Third Law
24. Two stroke- Four Stroke- Diesel-Rotary -Hybrid
Conversions
Pythagorean Theorem Equation
Internal Combustion Engine Types
Third Stroke (4 Stroke Engine)
25. When fluid is at rest
Weight
First Stroke (Diesel Engine)
Hydrostatics
Base Dimensions
26. The branch of science and engineering involving measurement
decrease
Metrology
Power Equation
Third Stroke (4 Stroke Engine)
27. Ignition - power stroke
Third Stroke (rotary)
Force lets us do work on a system
Length
Machine
28. Can be applied at a time on an object
More than one force
Work
Statics
Internal Combustion Engine Types
29. A pull on an object
Tension
Translation
Machine
Power Equation
30. (Force)(Distance)/Seconds
Newton's First Law of Motion
Rotary
Power Equation
Gravity
31. Piston travels down and intake valve is opened. Intake of fuel and air into chamber
Forces
First Stroke (4 Stroke Engine)
Mechanics
Weight
32. A^2+b^2=c^2
Steam Engine
Disc Breaks
Drum Brakes
Pythagorean Theorem Equation
33. Energy may enter or leave. Mass can enter or leave the system i.e. open water bottle - molecule - hydraulic cylinder - human
Open System
Hybrid Parallel
Force Equation
Effort
34. A change in velocity over time -Unites: USA- ft/s^2 and SI: m/s^2
Acceleration
Power Equation
Static
Volume
35. Varies by location (on earth) - distance (from earth) - and mass (of planet)
First Stroke (Diesel Engine)
Pythagorean Theorem Equation
Gravity
Engineers and scientists need a common language
36. Friction changes KE to heat energy- Heat is transferred to air- Front brakes work harder than rear- Some brakes use asbestos- Newer cars have dual braking systems - Don't drive through water or your brakes won't work well (ride breaks to dry them out
Volume
Common Brake Characteristics
Hydrostatics
Tension
37. Applied at an angle or parallel to a surface
Fourth Stroke (rotary)
Inclined Plane
Open System
Shear
38. ICE generates electricity for electric battery -Electric motor turns wheels
Velocity
Power
Hybrid Series
Newton's Third Law
39. Pistons connected to crankshaft -1 stroke up - 1 stroke down of the piston -1 rotation of the piston -Problems: high emissions - noisy - inefficient - high vibrations - unburnt fuel - burnt oil -Benefits: small and light -Being phased out in USA - i.
2 Stroke Engine
Component
Drum Brakes
Statics
40. A small piece that makes up a larger whole. Each component is there for a specific job - but the sum of components
2 Stroke Engine
Component
Conversions
Vectors
41. Piston travels up and both plugs are closed
Pressure Equation
Second Stroke (2 Stroke Engine)
Second Stroke (4 Stroke Engine)
Direction of Forces
42. An application of Pascal's Principle (trading distance and force while doing the same amount of work) -Gives a mechanical advantage -The muscles of machines - used to produce very large forces - use a fluid under pressure (gas is low pressure and liq
Hydraulics
Work
Hydraulic Cylinders
Gravity
43. Combustion of fuel mixture ignited by spark plug
Weight
Second Stroke (2 Stroke Engine)
Equation for Mechanical Advantage regarding inclined planes
Compression
44. When the work done by the effort just equals the work done by the load - ______ of the machine will occur
Tension
Fourth Stroke (Diesel Engine)
no movement
Area Equation
45. Are independent of other dimensions - They are limited in number - length - mass - time - temperature - force
Forces
Base Dimensions
Length
First Stroke (Diesel Engine)
46. What we are not studying
Surroundings
First Stroke (4 Stroke Engine)
Drum Brakes
Force lets us do work on a system
47. Causes acceleration -Units: USA: 32.2 ft/s^2 SI: 9.8 m/sec^2
Gravity
Surroundings
no movement
First Stroke (rotary)
48. When the sum of all forces and the sum of all moments both equal forces - No movement
Pythagorean Theorem Equation
Equilibrium
Disc Breaks
Work
49. Body at rest or is in equilibrium (wall)
Hybrid Series
Gravity
Static
Volume
50. A movement around a central pivot point (rotational movement) -Units: revolutions per second (rps) and revolutions per minute (rpm)
Rotation
Torque
Static
Internal Combustion Engine Types