Mechanical Systems Unit Flashcards
What is a linkage in mechanical systems?
subsystem that transmits motion and force.
True or False: A sprocket is a wheel with teeth that engages with a chain.
True
Fill in the blank: The ratio of the number of teeth on two gears is called the __________.
gear ratio
What is Pascal’s Law?
change in pressure applied to an enclosed fluid is transmitted undiminished to all parts of the fluid.
What is the main principle behind hydraulics?
Hydraulics uses incompressible fluids to transmit force and motion.
Multiple Choice: Which of the following is NOT a component of a hydraulic system? A) Pump B) Cylinder C) Piston D) Gear
D) Gear
What is the main difference between hydraulics and pneumatics?
Hydraulics uses liquids, while pneumatics uses gases.
True or False: Pneumatic systems are generally more suitable for tasks requiring high force.
False
What role do sprockets play in machinery?
Sprockets transmit rotary motion and torque through a chain.
Fill in the blank: The mechanical advantage in a pulley system is determined by the number of __________.
pulleys
Multiple Choice: Which of the following systems uses air as a working fluid? A) Hydraulic B) Pneumatic C) Mechanical D) Electric
B) Pneumatic
What is the formula to calculate hydraulic pressure?
Pressure = Force / Area
What does the term ‘mechanical advantage’ refer to?
The ratio of output force to input force in a mechanical system.
What type of fluid is typically used in hydraulic systems?
Incompressible liquids, such as oil.
Multiple Choice: Which of the following is a common source of power for pneumatic systems? A) Electric motor B) Air compressor C) Hydraulic reservoir D) Battery
B) Air compressor
What is the primary advantage of using pneumatics over hydraulics?
Pneumatics are cleaner and easier to maintain.
True or False: The efficiency of hydraulic systems is typically lower than that of pneumatic systems.
False
What is the effect of increasing the area of a piston in a hydraulic system?
It increases the force output according to Pascal’s Law.
Multiple Choice: Which type of linkage allows for a continuous range of motion? A) Fixed B) Flexible C) Rigid D) Revolute
B) Flexible
True or False: In a gear train, the input gear always turns faster than the output gear.
False
What is the main disadvantage of pneumatic systems?
They are less efficient for high force applications.
Fill in the blank: The __________ of a sprocket affects the speed at which a chain can move.
diameter
Multiple Choice: Which principle applies to hydraulic systems? A) Archimedes’ Principle B) Bernoulli’s Principle C) Pascal’s Law D) Newton’s Law
C) Pascal’s Law
