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Test your basic knowledge |
Mechanical Systems
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 rate of motion that an object changes position
respiratory system
parallel gears
speed
Pascal's Law
2. The ratio of the output to the input of any system - a comparison of the useful work provided by a machine or a system with - the work supplied to the machine or system
Hydraulic systems
speed ratio
respiratory system
efficiency
3. Is done when a force acts on an object to make that object move - a transfer of energy
mass production
bones
work
load arm
4. Distance between the fulcrum and the load
load arm
complex machines
cost of MA
steam engine
5. A fixed point
transmission
valve
cost of MA
fulcrum
6. Do the work faster
complex machines
work output
The Industrial Revolution
speed advantage
7. Work done by machine / work done to make the machine operate x100
effort force
formula for pressure
subsystems
formula for efficiency
8. Force of the small piston/area of the small piston = Force of the large piston/Area of the large piston
effort force
formula for pressure in hydraulics
subsystems
work output
9. Use the force of a liquid in a confined space - apply two essential characteristic of fluids - their incompressibility and their ability to transmit pressure
transmission
Hydraulic systems
circulatory system
pressure
10. Is the work needed to use - or operate the machine
Work input
speed
output piston
multiplying gears
11. Required a large shift in population from rural areas to the cities.
inclined plane
The Industrial Revolution
output piston
steam engine
12. Heated water to make steam and then used to move a piston in a circular motion
pascal
steam turbine
steam engine
speed
13. Distance between the fulcrum and the effort force
lubricants
formula for MA
formula for pressure
effort arm
14. Pneumatic system in your body
effort arm
kinetic energy
respiratory system
cost of MA
15. Consists of a small cylinder that has a crank or handle. The axle of the winch acts like the fulcrum - the handle is the effort arm
multiplying gears
winch
load arm
work output
16. The relationship between the speed of rotations of a smaller gear and a larger gear - can be calculated by dividing the number of driver gear teeth by the number of follower gear teeth.
internal combustion engine
parallel gears
efficiency
speed ratio
17. F x d
Pascal's Law
output piston
formula for work
ergonomics
18. Used to apply force to the fluid - which creates pressure in the fluid
input piston
kinetic energy
Pneumatic systems
efficiency
19. Energy of motion
inclined plane
kinetic energy
output piston
Work input
20. A measure of the amount of force applied to a given area
multiplying gears
output piston
pressure
fulcrum
21. Unit of measurement for pressure
pascal
steam turbine
friction
gravitational potential energy
22. 1st class - 2nd class - 3rd class
steam engine
3 classes of levers
Hydraulic systems
inclined plane
23. Heated water to make steam and then used to move a piston. When the piston moved - it caused an attached rod (which was connected to a crankshaft) to move as well - making the engine work.
reducing gears
steam engine
formula for pressure in hydraulics
cost of MA
24. (driven gear) smaller gear
system
pinion
gravitational potential energy
pressure
25. Work unit
joule
ergonomics
load arm
circulatory system
26. A large gear driving a smaller gear decreases torque and increases speed in the driven gear
pascal
driving gear
subsystems
multiplying gears
27. A small gear driving a larger gear increases torque and reduces speed in the driven gear
load
Pascal's Law
reducing gears
speed ratio
28. Is the work done by the machine
joule
work output
wheel and axle
formula for efficiency
29. Mass of the object lifted by the lever
3 classes of levers
load
formula for pressure
valve
30. Do not seal the gas (usually air)
Pneumatic systems
cost of MA
speed advantage
formula for efficiency
31. Stored energy
potential energy
kinetic energy
speed
joule
32. The production of large quantities of a standardized article (often using assembly line techniques)
driving gear
The Industrial Revolution
mass production
winch
33. Do the work easier
mass production
effort advantage
Hydraulic systems
steam engine
34. A group of parts that work together to perform a function
inclined plane
respiratory system
3 classes of levers
system
35. The comparison of the force produced by a machine to the force applied to the machine. (the size of the load vs the size of the force needed to move the load)
parallel gears
steam engine
mechanical advantage
respiratory system
36. The fluid transfers the pressure from the input piston to the ____________
pressure
steam engine
output piston
reducing gears
37. Act like levers
gears
bones
formula for pressure
formula for work
38. Are used to overcome the frictional force of the machine
Lever
load arm
mass production
lubricants
39. Pressure applied to an enclosed fluid is transmitted undiminished in all directions throughout the fluid and perpendicular to the walls of the container.
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40. F/A
pascal
friction
3 classes of levers
formula for pressure
41. Transferred to kinetic energy in machines in a dam to generate electrical energy
potential energy
formula for pressure in hydraulics
circulatory system
gravitational potential energy
42. To increase the force on the output piston - the input piston must move through a greater distance
Pascal's Law
cost of MA
inclined plane
pinion
43. Within a machine are groups of parts that perform specific functions - such as braking or steering
reducing gears
effort advantage
subsystems
parallel gears
44. A pair of wheels that have teeth that interlink. When they rotate together - one gear wheel transfers turning motion and force to the other.
kinetic energy
Pneumatic systems
complex machines
gears
45. A very complex combination of pulleys - including fixed and movable is called
gears
multiplying gears
block and tackle
formula for pressure
46. Consists of a wire - rope - or cable moving on a grooved wheel. One or more combinations of wheels and ropes can be fixed in place or moveable - help you lift larger loads.
formula for pressure
pulley
load arm
subsystems
47. Hydraulic system in your body
circulatory system
cost of MA
load
gravitational potential energy
48. Force exerted on the lever to make it move
effort force
cost of MA
formula for efficiency
internal combustion engine
49. Or ramp - makes it easier to move a load higher than it is - but - it has to be moved over a much longer distance.
parallel gears
The Industrial Revolution
fulcrum
inclined plane
50. A combination of two wheels of different diameters that turn together - a lever that rotates in a circle around a center point or fulcrum.
wheel and axle
joule
transmission
pascal