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 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. Act like levers
speed
pinion
bones
input piston
2. The fluid transfers the pressure from the input piston to the ____________
output piston
formula for MA
3 classes of levers
Lever
3. 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.
parallel gears
speed ratio
Lever
effort arm
4. A combination of two wheels of different diameters that turn together - a lever that rotates in a circle around a center point or fulcrum.
pressure
wheel and axle
lubricants
system
5. A rigid bar or plank that can rotate around a fixed point
Lever
load
formula for MA
mechanical advantage
6. Distance between the fulcrum and the load
load arm
steam engine
gravitational potential energy
subsystems
7. Load Force (FL)/Effort Force (FE)
steam engine
formula for MA
block and tackle
cost of MA
8. Do the work easier
reducing gears
effort advantage
wheel and axle
formula for efficiency
9. Work done by machine / work done to make the machine operate x100
effort arm
reducing gears
circulatory system
formula for efficiency
10. Unit of measurement for pressure
potential energy
gears
pinion
pascal
11. Heated water to make steam and then used to move a piston in a circular motion
steam turbine
cost of MA
system
lubricants
12. A large gear driving a smaller gear decreases torque and increases speed in the driven gear
gravitational potential energy
Lever
multiplying gears
load arm
13. Work unit
joule
formula for work
load
fulcrum
14. A small gear driving a larger gear increases torque and reduces speed in the driven gear
steam turbine
block and tackle
formula for efficiency
reducing gears
15. Pneumatic system in your body
work output
respiratory system
formula for pressure in hydraulics
formula for work
16. 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)
mechanical advantage
pascal
fulcrum
Pascal's Law
17. Use the force of a liquid in a confined space - apply two essential characteristic of fluids - their incompressibility and their ability to transmit pressure
mechanical advantage
Hydraulic systems
formula for pressure in hydraulics
subsystems
18. Pressure applied to an enclosed fluid is transmitted undiminished in all directions throughout the fluid and perpendicular to the walls of the container.
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
19. The rate of motion that an object changes position
The Industrial Revolution
Hydraulic systems
speed
inclined plane
20. 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
load arm
mechanical advantage
gears
efficiency
21. Used to apply force to the fluid - which creates pressure in the fluid
input piston
formula for efficiency
block and tackle
potential energy
22. 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
winch
formula for work
load
Pneumatic systems
23. Reason that machines are never 100% efficient
system
transmission
input piston
friction
24. Energy is transferred from one place to another - and no energy is changed or converted.
transmission
inclined plane
ergonomics
effort advantage
25. A group of parts that work together to perform a function
inclined plane
steam engine
load arm
system
26. The combustion occurs inside the engine. The pistons goes through 4 steps: Intake stroke (taking in the fuel) - compression stroke (compressing the fuel- air mixture) - power stroke (the fuel- air mixture is ignited) - exhaust stroke (waste products
input piston
effort advantage
speed advantage
internal combustion engine
27. F/A
circulatory system
driving gear
formula for pressure
fulcrum
28. Used to control the flow of a fluid. It is a moveable part that controls the flow by opening or closing
reducing gears
gravitational potential energy
valve
pinion
29. A very complex combination of pulleys - including fixed and movable is called
input piston
block and tackle
formula for work
load arm
30. 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.
parallel gears
speed
mass production
steam engine
31. 1st class - 2nd class - 3rd class
ergonomics
output piston
3 classes of levers
pressure
32. Bigger gear
inclined plane
driving gear
effort arm
valve
33. Do not seal the gas (usually air)
Pneumatic systems
speed advantage
The Industrial Revolution
load arm
34. Energy of motion
reducing gears
kinetic energy
friction
subsystems
35. Within a machine are groups of parts that perform specific functions - such as braking or steering
subsystems
internal combustion engine
formula for MA
winch
36. (driven gear) smaller gear
pinion
gears
respiratory system
formula for efficiency
37. Is the work done by the machine
effort advantage
potential energy
effort force
work output
38. Is the work needed to use - or operate the machine
pinion
Work input
block and tackle
load arm
39. Hydraulic system in your body
joule
speed ratio
circulatory system
formula for pressure in hydraulics
40. To increase the force on the output piston - the input piston must move through a greater distance
effort advantage
steam turbine
speed
cost of MA
41. 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.
pulley
Work input
multiplying gears
effort force
42. Science of designing machines to suit people
block and tackle
output piston
3 classes of levers
ergonomics
43. Do the work faster
speed advantage
driving gear
friction
effort advantage
44. Force exerted on the lever to make it move
Pneumatic systems
effort force
effort arm
reducing gears
45. Force of the small piston/area of the small piston = Force of the large piston/Area of the large piston
input piston
formula for pressure in hydraulics
speed
valve
46. Transferred to kinetic energy in machines in a dam to generate electrical energy
gravitational potential energy
speed
steam engine
cost of MA
47. Stored energy
Pneumatic systems
Hydraulic systems
work output
potential energy
48. Mass of the object lifted by the lever
lubricants
efficiency
load
parallel gears
49. Is done when a force acts on an object to make that object move - a transfer of energy
formula for work
friction
wheel and axle
work
50. Distance between the fulcrum and the effort force
pressure
effort arm
fulcrum
joule