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. Old technology- harder to service-Still used on big trucks and trailers because they are too expensive to convert
Area
Newton's First Law of Motion
System
Drum Brakes
2. A movement around a central pivot point (rotational movement) -Units: revolutions per second (rps) and revolutions per minute (rpm)
Rotation
Pressure Equation
Statics
Hydraulics
3. Combine two or more power sources - locomotives - buses (diesel- electric) -Submarines (Nuclear- electric) -Components:gas engine - fuel tank - electric motor - generator - batteries - transmission -2 motors: Internal Combustion Engine and Electric E
Surroundings
Fourth Stroke (4 Stroke Engine)
First Stroke (4 Stroke Engine)
Hybrid
4. Incompressible (volume doesnt change) Transmit force evenly - Lubricates - Trap contaminants - Some based on vegetable oils - Biodegradable - Aircraft fluids noncombustible (thins as temperature rises)
Equilibrium
Newton's First Law of Motion
More than one force
Fluids
5. 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
Force Equation
Hydraulics
Equation for Mechanical Advantage regarding inclined planes
Translation
6. A change in velocity over time -Unites: USA- ft/s^2 and SI: m/s^2
Hybrid
Acceleration
Translation
Fourth Stroke (Diesel Engine)
7. Weight/Time
Power Equation
Steam Engine
Engineers and scientists need a common language
Gravity
8. Combustion of fuel mixture ignited by spark plug
Law of Conservation of Mass
Applied Brakes
Second Stroke (2 Stroke Engine)
Hybrid Parallel
9. (pi) x (radius)^2
Second Stroke (4 Stroke Engine)
no movement
Second Stroke (rotary)
Area of a circle equation
10. Rotation will not occur - but translation might occur
If the force is applied at the center of the rotation
Dynamics
will move
Volume
11. A^2+b^2=c^2
Pythagorean Theorem Equation
Third Stroke (Diesel Engine)
Temperature
Couple
12. Compression-Tension-Shear
Direction of Forces
decrease
Inclined Plane
Translation
13. Intake of fuel and air mix
Hybrid Parallel
First Stroke (4 Stroke Engine)
First Stroke (rotary)
Engineers and scientists need a common language
14. Three- dimensional property measured in units of length times length times length =length x width x height
Newton's Third Law
Volume
Steam Engine
Gravity
15. A flat - two dimensional property -Units of length multiplied by length describe area -A=length x width
Area
Shear
Second Stroke (4 Stroke Engine)
First Stroke (rotary)
16. The force simple machines use to do work on a single load or against a single force
Effort
Derived Dimension
Length
US Customary
17. Exhaust of combustion products
Pythagorean Theorem Equation
Second Stroke (Diesel Engine)
Machine
Fourth Stroke (rotary)
18. A system adopted from an old British system of units in the 13th century -Engineering system -Units: length- foot (ft) - time- second (s) - force-(lbs) - Mass is a derived unit called a slug -Political/Economic choice -Awkward
Moment Arm
Couple
US Customary
Law of Conservation of Mass
19. An indication of kinetic energy of mass at the molecular level
Temperature
Effort
Diesel Engine
Second Stroke (rotary)
20. Both engines drive wheels -ICE used for cruising -Electric motor assists with low speed for acceleration and hill climbing
Hybrid Parallel
First Stroke (2 Stroke Engine)
no movement
Second Stroke (2 Stroke Engine)
21. Often a free body has _______ acting on it
more than one force
Second Stroke (4 Stroke Engine)
Power Equation
Dynamics
22. Psi - newtons - pascals
Pythagorean Theorem
If the force is applied at the center of the rotation
Units for Pressure
Equation for Mechanical Advantage regarding inclined planes
23. Varies by location (on earth) - distance (from earth) - and mass (of planet)
Moment Arm Equation
Closed System
First Stroke (rotary)
Gravity
24. Describes how applied forces bring a body into rest or equilibrium
Couple
Statics
Internal Combustion Engine Types
Rotation
25. Air is drawn in
First Stroke (Diesel Engine)
Newton's Second Law
Statics
Fluids
26. Force and mass are proportional to each other (F=ma) -If F increases - so does acceleration -Force causes acceleration - More force means more acceleration - same mass - More mass means less acceleration - same force
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
27. Mass x acceleration
will move
Pressure Equation
Force Equation
Couple
28. When a simple machine increases a force it is at the expense of a ____ in the distance the load is moved
4 Stroke Engine
decrease
Rotation
Power Equation
29. What we are studying
Velocity
System
System International (SI)
Steam Engine
30. Can be reduced by decreasing the weight or force or increasing the area i.e. airbag
First Stroke (rotary)
Rotary
Pressure
Result of Applying a force to a rigid body at rest
31. In a hydraulic with an incompressible fluid - the total pressure at any point in the system is the same - liquid
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
32. Liquid or gas
Engineers and scientists need a common language
Hybrid Series
Fluid
Shear
33. A quantity that has both magnitude and direction when placed within a coordinate system -Forces and Velocity i.e. driving 50 miles to the northeast
Conversions
Internal Combustion Engine Types
Mechanics describe how forces affect a body
Vectors
34. When two parallel forces equal in magnitude and opposite direction - i.e. steering wheel - turn a know - turn on and off a faucet
Shear
Translation
First Stroke (Diesel Engine)
Couple
35. Piston travels up and exhaust valve opens. Combustion by product exhaustion
Fourth Stroke (4 Stroke Engine)
Aerodynamics
Equilibrium
Fourth Stroke (Diesel Engine)
36. A pull on an object
Third Stroke (rotary)
Vectors
Internal Combustion Engine Types
Tension
37. Piston travels down and intake valve is opened. Intake of fuel and air into chamber
First Stroke (4 Stroke Engine)
Length
Temperature
Acceleration
38. 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
Component
Machine
Dimension
Result of Applying a force to a rigid body at rest
39. The perpendicular distance from the pivot point to the point of application of the force (d) - M=Fd -Clockwise=Negative moment -Counterclockwise=Positive moment
Fluids
Moment Arm
Common Brake Characteristics
Static
40. Combustion ignited by spark plug and materials are compressed
Dynamics
Third Stroke (4 Stroke Engine)
Surroundings
If the force is applied away from the center of rotation
41. External Combustion engine -Only used in factories and plants (not used in cars)
Steam Engine
more than one force
Engineers and scientists need a common language
Diesel Engine
42. 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
Rotary
Engineers and scientists need a common language
Internal Combustion Engine Types
Applied Brakes
43. Applied at an angle or parallel to a surface
Internal Combustion Engine Types
Conversions
will move
Shear
44. When the work done by the effort exceeds the work done by the load - the load...
If the force is applied away from the center of rotation
Pythagorean Theorem
will move
Dynamics
45. The standard system of units that uses base 10 and used in the rest of the world. US does not use - but Great Britain does - Base Units: mass - kilograms (kg) - length- meters (m) - and time-Seconds (S) - Force is a derived unit measured in newtons (
More than one force
System International (SI)
Conversions
Pascal's Principle
46. Four Stroke Engine -Used in hotter areas because more efficient -Higher compression ratio than gasoline
Result of Applying a force to a rigid body at rest
4 Stroke Engine
Hydraulic Cylinders
Diesel Engine
47. Can be applied at a time on an object
Newton's Third Law
Translation
More than one force
Rotary
48. Force x Distance
Force lets us do work on a system
Mechanical Advantage Equation
Moment Arm Equation
Tension
49. The magnitude of something in a particular direction
Equation for Mechanical Advantage regarding inclined planes
no movement
Direction of Forces
Length
50. What we are not studying
Surroundings
Base Dimensions
Weight
Shear