WorksheetsAUTO 1 LEC FINAL QUIZ 2
Total questions: 20
Worksheet time: 15mins
Which cylinder requires air pressure for both extension and retraction?
Check-valve cylinder
Single-acting cylinder
Rodless cylinder
Double-acting cylinder
What is the purpose of a 5/2-way directional valve?
Converting electrical energy to hydraulic pressure
Increasing the air reservoir pressure
Reducing the heat of pneumatic motors
Controlling more complex actuator movements
Which component controls the airflow entering the pneumatic circuit?
Solenoid coil component
FRL unit component
Electrical relay component
Thermal fuse component
What is shown on an electrical control diagram?
Connection of coils, sensors, and push buttons
Internal structure of pneumatic cylinders
Air temperature at compressor output
Physical dimensions of steel pipes
Why are safety interlocks included in electrical circuits?
Preventing unsafe actuator motion
Reducing compressed air temperature
Increasing air filter efficiency
Improving screw torque alignment
What connects electrical signals to pneumatic actuation?
Limit switch housings
Solenoid valve coils
Air reservoir tanks
Thermal regulator plates
What is done before building the physical circuit?
Pressure reduction of air supply
Assembly of all cylinders first
Computer simulation and testing
Mechanical calibration of gears
What is required when assembling an electro-pneumatic circuit?
Filling cylinders with hydraulic oil
Lowering air pressure to zero
Securing all connections and labels
Removing all directional valves
What is checked during system testing?
The weight of each air fitting
Operation under real conditions
The color of each sensor cable
The metallic grade of cylinders
What is the main control function of an OR logic circuit?
Output is active when any input is true
Output is inactive when any input is true
Output is active only when both inputs are false
Output is active only when both inputs are true
What is the condition for output in a NOR logic circuit?
All inputs must be false
All inputs must be true
One input must be true
Output must be manually triggered
What do valves arranged in parallel create in electro-pneumatic logic?
OR or NAND configuration
AND or NOR configuration
NOT or delay configuration
Memory or brake configuration
Which component senses objects without mechanical contact?
Flow-control valve device
Limit switch device
Manual push button device
Proximity sensor device
What determines the air path in a directional valve?
Electrical cable resistance
Cylinder stroke and rod length
Valve position and port configuration
Temperature of compressed air
What is one advantage of pneumatic logic in hazardous environments?
Built-in fire suppression
Increased sound reduction
High hydraulic fluid pressure
No electrical spark risk
In an electro-pneumatic design, what connects the pneumatic and electrical sides?
Solenoid-operated directional valves
Air filters for moisture removal
Hydraulically powered actuators
Mechanical pressure switches
Why is the problem definition important before circuit design?
It adjusts the thickness of air hoses
It reduces the mass of steel components
It determines the color coding of cables
It establishes system purpose and requirements
What must be verified after assembling the integrated circuit?
The paint color matches industrial codes
The sequence matches the design intent
The cylinder rods are polished evenly
The air compressor has decorative labels
Which circuit element indicates airflow direction on diagrams?
Shading on electrical coils
Arrows on pneumatic symbols
Temperature marks on hoses
Heat sensors near valve ports
Why are PLCs replacing traditional pneumatic logic systems?
Greater flexibility and easier programming
Increased air consumption and noise
Lower electrical sensitivity protection
Higher dependence on mechanical force
