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WorksheetsPOE: Unit 3 Review
Total questions: 53
Worksheet time: 13hrs 15mins
What type of behavior involves a robot performing a simple task?
Complex behavior
Basic behavior
Intermediate behavior
Simple behavior
Which behavior is described as a single command to a robot?
Complex behavior
Simple behavior
Basic behavior
Advanced behavior
Which function is used to stop the motor in the provided code?
stopMotor()
haltMotor()
endMotor()
ceaseMotor()
When does a program check the condition in a loop?
At the end of each pass
In the middle of each pass
At the beginning of each pass
It does not check the condition
What is the purpose of the "while" loop in programming?
To execute commands once
To repeat commands while a condition is true
To ignore commands
To stop commands
What happens when the condition in an if statement is false?
Commands between braces are run
The program stops
Those commands are ignored
The program restarts
What is the definition of Hydraulics?
The use of a fluid to transmit power from one location to another
The use of a liquid flowing under pressure to transmit power from one location to another
The use of a gas flowing under pressure to transmit power from one location to another
The use of electricity to transmit power from one location to another
What is the definition of Pneumatics?
The use of a fluid to transmit power from one location to another
The use of a liquid flowing under pressure to transmit power from one location to another
The use of a gas flowing under pressure to transmit power from one location to another
The use of electricity to transmit power from one location to another
Which of the following is a reason to use fluid power?
High-speed torque
Inconsistent force and torque
High power / low weight ratio
Difficult, inaccurate control
Which component in a fluid power system stores fluid?
Fluid Conductors
Pump / Compressor
Reservoir / Receiver
Valve
What is the function of fluid conductors in a fluid power system?
Converts mechanical power to fluid power
Controls direction and amount of flow
Stores fluid
Allows for flow between components
Which component converts mechanical power to fluid power in a fluid power system?
Actuators
Valve
Pump / Compressor
Fluid Conductors
Which component converts fluid power to mechanical power in a fluid power system?
Reservoir / Receiver
Pump / Compressor
Valve
Actuators
How much work is completed by moving a 1000-lb force 2 ft?
1000 ft-lb of work
500 ft-lb of work
2000 ft-lb of work
1500 ft-lb of work
What is the formula for hydraulic power?
Power = flow x pressure drop
Power = pressure drop / flow
Power = flow + pressure drop
Power = flow - pressure drop
What is a common unit for power in fluid power principles?
Watt
Joule
Horsepower
Newton
What is the formula for calculating horsepower in hydraulic systems?
Horsepower = (flow x pressure) / 1714
Horsepower = (flow + pressure) / 1714
Horsepower = (flow x pressure) x 1714
Horsepower = (flow - pressure) / 1714
What happens to energy that is not transferred to work?
It disappears.
It takes the form of heat energy.
It remains unused.
It converts into light energy.
What makes actuator operation possible in fluid power systems?
Pressure
Temperature
Flow
Voltage
What does the rate of flow determine in fluid power principles?
Pressure
Temperature
Actuator speed
Voltage
In fluid power principles, how is the rate of flow measured?
Liters per second (L/s)
Gallons per minute (gpm)
Cubic meters per hour (m³/h)
Pounds per square inch (psi)
What generates the rate of flow in fluid power systems?
A valve
A compressor
A pump
A turbine
What is the primary function of pressure in fluid power systems?
To reduce the flow rate
To overcome the resistance to flow
To increase the temperature
To decrease the system resistance
How do pumps produce flow in a fluid power system?
By cooling the fluid
By pressurizing the fluid
By heating the fluid
By reducing the fluid volume
What is the relationship between force, pressure, and area?
force = pressure / area
force = pressure x area
force = area / pressure
force = area x pressure
How is pressure calculated?
pressure = force x area
pressure = area / force
pressure = force / area
pressure = area x force
What is the primary use of a gas in a pneumatic system?
To transmit power from one location to another
To cool down machinery
To lubricate moving parts
To generate electricity
How does gas in a pneumatic system behave?
Like a solid since it is incompressible
Like a liquid since it flows easily
Like a spring since it is compressible
Like a magnet since it attracts metal
Which of the following is a characteristic of pneumatic systems?
Use an incompressible fluid
Possess a slower, smoother motion
Are generally cleaner
Generally produce more power
Pneumatic systems often operate at pressures around:
50 psi
100 psi
150 psi
200 psi
What type of gas do pneumatic systems use?
Incompressible gas
Compressible gas
Liquid gas
Solid gas
What does gauge pressure not account for?
Atmospheric pressure on all sides of the system
Absolute pressure
Temperature changes
Volume of the gas
What is the formula for absolute pressure?
Gauge Pressure + Atmospheric Pressure
Gauge Pressure - Atmospheric Pressure
Atmospheric Pressure - Gauge Pressure
Gauge Pressure / Atmospheric Pressure
What is the standard atmospheric pressure in pounds per square inch (psi)?
120.0 lb/in.²
14.7 lb/in.²
134.7 lb/in.²
100.0 lb/in.²
If a gauge reads 120.0 psi, what is the absolute pressure?
120.0 lb/in.²
14.7 lb/in.²
134.7 lb/in.²
100.0 lb/in.²
Pressure (p) is measured in which unit?
Pounds per square foot (lb/ft.²)
Pounds per square inch (lb/in.² or psi)
Kilograms per square meter (kg/m.²)
Newtons per square meter (N/m.²)
What is the value of Absolute Zero in degrees Fahrenheit (°F)?
0°F
-273.15°F
-460°F
32°F
Absolute Temperature is measured in which unit?
Celsius (°C)
Kelvin (K)
Rankine (°R)
Fahrenheit (°F)
What is the formula to convert Fahrenheit (°F) to Rankine (°R)?
°R = °F + 273.15
°R = °F + 460
°R = °F - 273.15
°R = °F - 460
If the temperature of the air in a system is 65°F, what is the absolute temperature in Rankine (°R)?
525 °R
460 °R
273.15 °R
65 °R
What does Pascal's Law state about the pressure exerted by a confined fluid?
It acts undiminished equally in all directions.
It decreases with depth.
It increases with temperature.
It acts only in the direction of gravity.
What is the definition of pressure according to the provided material?
The force per unit area exerted by a fluid against a surface.
The weight of a fluid.
The volume of a fluid.
The density of a fluid.
How does liquid in a hydraulic system behave?
Like a gas
Like a solid
Like a plasma
Like a vacuum
Why does liquid in a hydraulic system behave like a solid?
Because it compresses a lot
Because it compresses very little
Because it expands rapidly
Because it evaporates quickly
What does Pascal's Law state about the pressure exerted by a confined fluid?
It acts undiminished equally in all directions.
It decreases with depth.
It increases with temperature.
It acts only in the direction of gravity.
What is the definition of Flow Rate?
The distance the fluid travels through a system in a given period of time
The volume of fluid that moves through a system in a given period of time
The speed at which fluid moves through a system
The pressure exerted by the fluid in a system
What is the definition of Flow Velocity?
The volume of fluid that moves through a system in a given period of time
The speed at which fluid moves through a system
The distance the fluid travels through a system in a given period of time
The pressure exerted by the fluid in a system
What is the symbol for Flow Rate?
V
A
Q
F
What is the example unit for Flow Velocity?
gpm or gal/min
in.³ / min
in.²
fps or ft/s
What is the formula for Flow Rate (Q)?
Q = V / A
Q = V * A
Q = A / V
Q = V + A
What is the conversion factor from gallons to cubic inches?
1 gal = 100 in.³
1 gal = 200 in.³
1 gal = 231 in.³
1 gal = 300 in.³
What does Bernoulli's Principle state about the relationship between velocity and pressure?
An increase in velocity results in an increase in pressure.
An increase in velocity results in a decrease in pressure.
A decrease in velocity results in a decrease in pressure.
Velocity and pressure are not related.
According to Bernoulli's Principle, what happens to pressure when velocity decreases?
Pressure decreases.
Pressure remains the same.
Pressure increases.
Pressure fluctuates.
