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. Dimensions and units
Engineers and scientists need a common language
Weight
Pythagorean Theorem
Applied Brakes
2. Work/force or vertical distance/sloping distance
Second Stroke (2 Stroke Engine)
Gravity
Mechanical Advantage Equation
Equation for Mechanical Advantage regarding inclined planes
3. Causes acceleration -Units: USA: 32.2 ft/s^2 SI: 9.8 m/sec^2
Volume
Hydrostatics
Mechanics describe how forces affect a body
Gravity
4. Old technology- harder to service-Still used on big trucks and trailers because they are too expensive to convert
Base Dimensions
Drum Brakes
Temperature
Area of a circle equation
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
Hydraulics
Newton's First Law of Motion
Mass
Fourth Stroke (rotary)
6. Ignition - power stroke
Volume
Third Stroke (rotary)
Direction of Forces
Equation for Mechanical Advantage regarding inclined planes
7. Are independent of other dimensions - They are limited in number - length - mass - time - temperature - force
Base Dimensions
Metrology
Couple
Applied Brakes
8. A pull on an object
Component
Tension
Fluids
Area of a circle equation
9. ICE generates electricity for electric battery -Electric motor turns wheels
Newton's Second Law
Pythagorean Theorem
Pythagorean Theorem
Hybrid Series
10. When two parallel forces equal in magnitude and opposite direction - i.e. steering wheel - turn a know - turn on and off a faucet
Couple
First Stroke (Diesel Engine)
Dimension
First Stroke (2 Stroke Engine)
11. Energy may enter or leave. No mass enters or leaves the system i.e. Closed water bottle - car engine - human
no movement
Drum Brakes
Fluid
Closed System
12. Piston travels up and exhaust valve opens. Combustion by product exhaustion
Fourth Stroke (4 Stroke Engine)
System International (SI)
Closed System
Direction of Forces
13. Mechanics is an application of math that describes how forces affect a body
Component
Mechanics
decrease
Conversions
14. Liquid or gas
Fluid
Hydraulic Cylinders
Steam Engine
If the force is applied away from the center of rotation
15. External Combustion engine -Only used in factories and plants (not used in cars)
Moment Arm
Hydrostatics
Effort
Steam Engine
16. Body in motion (car)
Volume
Shear
Dynamics
Second Stroke (2 Stroke Engine)
17. Force x Distance
Moment Arm Equation
Inclined Plane
Gravity
no movement
18. 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
Internal Combustion Engine Types
First Stroke (Diesel Engine)
Hybrid
19. Describes a physical property of anything - What we are measuring
Second Stroke (2 Stroke Engine)
Pythagorean Theorem
Dimension
Weight
20. Air is compressed - work is done on the system
Gravity
Second Stroke (Diesel Engine)
Area Equation
Inclined Plane
21. One that pushes on an object
Compression
Area
System International (SI)
Forces
22. 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
23. The force simple machines use to do work on a single load or against a single force
Effort
If the force is applied away from the center of rotation
Second Stroke (Diesel Engine)
Mechanical Engineering
24. Three- dimensional property measured in units of length times length times length =length x width x height
Volume
Second Stroke (2 Stroke Engine)
Metrology
Dynamics
25. Fuel is injected and combusts due to temperature of compressed air
no movement
Hybrid Parallel
Pythagorean Theorem Equation
Third Stroke (Diesel Engine)
26. Air is drawn in
First Stroke (Diesel Engine)
Force Equation
Tension
More than one force
27. (Force)(Distance)/Seconds
no movement
Equilibrium
Power Equation
More than one force
28. Describes how applied forces bring a body into rest or equilibrium
Second Stroke (2 Stroke Engine)
Statics
Law of Conservation of Mass
Equation for Mechanical Advantage regarding inclined planes
29. Used in cars -2 rotations of crankshaft -4 strokes (down - up - down - up) of piston - i.e. cars - trucks - planes - buses - motorcycles - submarine -1% of gas actually moves people
Hybrid
Dynamics
4 Stroke Engine
Third Stroke (4 Stroke Engine)
30. What we are studying
System
will move
Torque
Open System
31. More compact (size of beer keg) - No valves -Benefits: fewer parts - lower engine weight Problems: seal - lower inertia forces -1 rotar=3 to 4 pistons
Rotary
Newton's Third Law
Effort
Power Equation
32. Rotation will not occur - but translation might occur
First Stroke (4 Stroke Engine)
Law of Conservation of Mass
Closed System
If the force is applied at the center of the rotation
33. Static - Dynamic
Mechanics describe how forces affect a body
Fluids
no movement
Pythagorean Theorem
34. 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
Newton's Third Law
Newton's First Law of Motion
Mechanical Engineering
Pythagorean Theorem Equation
35. Can be applied:-By direct contact: push - pull - twist -At a distance: gravity - magnetism Can change: speed - direction - shape - units of force
Hybrid Series
Forces
Rotary
Machine
36. Compression-Tension-Shear
Power Equation
Law of Conservation of Mass
Temperature
Direction of Forces
37. Every object continues in motion in a straight line unless acted upon by some force -Every object at rest continues at rest unless acted upon by a force -So forces cause a change in an object's state of motion
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
38. ...
Force lets us do work on a system
Pythagorean Theorem
Mechanical Advantage Equation
Hybrid Parallel
39. Often a free body has _______ acting on it
Mass
more than one force
Machine
Area Equation
40. When the sum of all forces and the sum of all moments both equal forces - No movement
Units for Pressure
Hydraulics
Dynamics
Equilibrium
41. Four Stroke Engine -Used in hotter areas because more efficient -Higher compression ratio than gasoline
Hydraulics
Diesel Engine
Rotation
Newton's Third Law
42. Force without machine/Force with machine
Moment Arm
Mechanical Advantage Equation
Law of Conservation of Mass
Second Stroke (Diesel Engine)
43. Two stroke- Four Stroke- Diesel-Rotary -Hybrid
Internal Combustion Engine Types
Gravity
Third Stroke (Diesel Engine)
Couple
44. When the work done by the effort just equals the work done by the load - ______ of the machine will occur
Drum Brakes
Weight
Velocity
no movement
45. The branch of science and engineering involving measurement
Steam Engine
Force Equation
Metrology
Fluids
46. Result of gravity acting on mass -The greater the mass - the greater the weight -Is a force -Units: lbs - N
Static
Pressure
Pythagorean Theorem
Weight
47. What we are not studying
Surroundings
Rotary
Moment Arm
Conversions
48. A flat - sloping surface -The only simple machine that does not move -The force is applied to the ramp - since this is the direction the load weight is moved -Sloping side is longer than vertical side -Less force is required to accomplish the same am
Hydraulic Cylinders
Hybrid Parallel
Inclined Plane
Tension
49. Exhaust of combustion products
Fourth Stroke (rotary)
Third Stroke (rotary)
US Customary
Pythagorean Theorem
50. Body at rest or is in equilibrium (wall)
Static
Rotary
Internal Combustion Engine Types
Newton's First Law of Motion