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 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
Fluids
Hybrid
Power Equation
US Customary
2. Force x Distance
Internal Combustion Engine Types
Moment Arm Equation
Vectors
Component
3. (Force)(Distance)/Seconds
More than one force
Pythagorean Theorem Equation
Fluids
Power Equation
4. External Combustion engine -Only used in factories and plants (not used in cars)
Pythagorean Theorem
Steam Engine
Couple
Pythagorean Theorem Equation
5. Rotation will not occur - but translation might occur
If the force is applied at the center of the rotation
Metrology
Tension
Hydraulic Cylinders
6. Two stroke- Four Stroke- Diesel-Rotary -Hybrid
System
Internal Combustion Engine Types
Equilibrium
First Stroke (2 Stroke Engine)
7. 1. Magnitude: size - a numberi.e. 50 mph 2. Direction: angle i.e. N -E -W -S
Forces and Vectors
Volume
Third Stroke (4 Stroke Engine)
Second Stroke (Diesel Engine)
8. 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.
First Stroke (4 Stroke Engine)
Gravity
will move
2 Stroke Engine
9. Exhaust
Mechanical Engineering
Power Equation
Equation for Mechanical Advantage regarding inclined planes
Fourth Stroke (Diesel Engine)
10. A fluid power system uses hydraulics and a fluid under pressure to create a greater force than is applied
Fluid Power
Hybrid Series
Fluid
Third Stroke (4 Stroke Engine)
11. Piston travels up and exhaust valve opens. Combustion by product exhaustion
Fourth Stroke (4 Stroke Engine)
Metrology
Area
4 Stroke Engine
12. The force simple machines use to do work on a single load or against a single force
Units for Pressure
Pascal's Principle
Effort
2 Stroke Engine
13. A pull on an object
Inclined Plane
Mechanics describe how forces affect a body
Tension
Static
14. Four Stroke Engine -Used in hotter areas because more efficient -Higher compression ratio than gasoline
Diesel Engine
Fluid
Gravity
Tension
15. Energy may enter or leave. No mass enters or leaves the system i.e. Closed water bottle - car engine - human
Pressure Equation
System
Closed System
Fourth Stroke (Diesel Engine)
16. The magnitude of something in a particular direction
Length
Mass
Power Equation
System
17. 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
18. One that pushes on an object
Second Stroke (Diesel Engine)
Applied Brakes
Compression
US Customary
19. Force without machine/Force with machine
Mechanical Advantage
Conversions
Power Equation
Mechanical Advantage Equation
20. Applied at an angle or parallel to a surface
Pascal's Principle
Shear
Statics
Moment Arm Equation
21. Body at rest or is in equilibrium (wall)
Hydraulics
Area Equation
Static
Hydraulic Cylinders
22. What we are studying
Weight
4 Stroke Engine
Fluid Power
System
23. 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
4 Stroke Engine
Dynamics
Direction of Forces
Newton's Second Law
24. Compression-Tension-Shear
Compression
System
Direction of Forces
Translation
25. Rotation may occur
Statics
If the force is applied away from the center of rotation
Forces
Open System
26. If a force causes rotations -Vector- Machines can have more than one torque-Units: foot- pound and newton - meter - i.e. engines - airplanes - propeller
Torque
Component
Fluid Power
Statics
27. Combustion of fuel mixture ignited by spark plug
Second Stroke (2 Stroke Engine)
Hydraulics
Temperature
Forces and Vectors
28. Can be reduced by decreasing the weight or force or increasing the area i.e. airbag
Internal Combustion Engine Types
Pressure
Fourth Stroke (4 Stroke Engine)
Couple
29. Modern Technology- More efficient-Better Cooling-Easier to service- longer life - lither weight- More expensive
Gravity
4 Stroke Engine
Disc Breaks
Power Equation
30. A movement around a central pivot point (rotational movement) -Units: revolutions per second (rps) and revolutions per minute (rpm)
Second Stroke (rotary)
Rotation
Dynamics
Dimension
31. Old technology- harder to service-Still used on big trucks and trailers because they are too expensive to convert
Effort
Drum Brakes
Second Stroke (Diesel Engine)
Dynamics
32. When the moving fluid is a gas
Force lets us do work on a system
Power Equation
Steam Engine
Aerodynamics
33. Allows comparison between different measuring systems and units - Necessary to market internationally
Conversions
Pythagorean Theorem
Force lets us do work on a system
Hybrid Parallel
34. Are independent of other dimensions - They are limited in number - length - mass - time - temperature - force
Equilibrium
Effort
Force Equation
Base Dimensions
35. (pi) x (radius)^2
Area of a circle equation
Acceleration
Mechanical Engineering
Base Dimensions
36. Intake of fuel and air mixture - compression of mixture by piston
First Stroke (2 Stroke Engine)
Mechanical Advantage
Third Stroke (4 Stroke Engine)
First Stroke (Diesel Engine)
37. 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 (
System International (SI)
Area Equation
Mechanical Engineering
Mechanics describe how forces affect a body
38. Piston travels down and intake valve is opened. Intake of fuel and air into chamber
First Stroke (4 Stroke Engine)
Hydraulic Cylinders
Second Stroke (2 Stroke Engine)
Force lets us do work on a system
39. 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
Statics
Derived Dimension
Common Brake Characteristics
First Stroke (4 Stroke Engine)
40. 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
Units
Hydraulic Cylinders
Mechanical Advantage
Mechanical Engineering
41. ...
Applied Brakes
Gravity
Forces and Vectors
Force lets us do work on a system
42. Air is compressed - work is done on the system
Pythagorean Theorem Equation
Vectors
Second Stroke (Diesel Engine)
US Customary
43. Length / Time
First Stroke (4 Stroke Engine)
Velocity
Units for Pressure
Mechanical Advantage Equation
44. Air is drawn in
Units for Pressure
Fourth Stroke (4 Stroke Engine)
4 Stroke Engine
First Stroke (Diesel Engine)
45. Mass x acceleration
First Stroke (4 Stroke Engine)
Mechanics describe how forces affect a body
Force Equation
Fluid
46. Describes how applied forces bring a body into rest or equilibrium
decrease
Mechanical Advantage
Statics
Length
47. Compression of fuel mix
Static
Second Stroke (rotary)
Hydraulic Cylinders
Compression
48. The perpendicular distance from the pivot point to the point of application of the force (d) - M=Fd -Clockwise=Negative moment -Counterclockwise=Positive moment
First Stroke (Diesel Engine)
Area Equation
Power Equation
Moment Arm
49. Length x Width x Height
Volume
Acceleration
Hydrostatics
Pressure
50. Intake of fuel and air mix
Compression
Gravity
Tension
First Stroke (rotary)