Learn the differences between open loop and closed loop systems with these questions and answers in control systems.
Open Loop and Closed Loop System
In this video, you will learn the open-loop and closed-loop control systems questions and answers with detailed explanations.
Question 1
Which characteristic is typical of an open-loop control system?
A. Uses feedback to adjust
B. Self-correcting errors
C. Predetermined output without adjustments
D. High accuracy and stability
Show the Answer
Predetermined output without adjustments
Question 2
What is a key characteristic of a closed-loop control system?
A. Operates without feedback
B. Uses a fixed input
C. Controls based on output feedback
D. Simpler design
Show the Answer
Controls based on output feedback
Question 3
Identify a typical feature of an open-loop system.
A. Feedback loop
B. Error detection
C. No feedback mechanism
D. Real-time adjustments
Show the Answer
No feedback mechanism
Question 4
What is a disadvantage of an open-loop control system?
A. High complexity
B. High accuracy
C. Inability to correct errors
D. High cost
Show the Answer
Inability to correct errors
Question 5
Identify a feature that distinguishes open-loop systems from closed-loop systems.
A. Feedback control
B. Real-time error correction
C. Predetermined control actions
D. High stability
Show the Answer
Predetermined control actions
Question 6
Which characteristic enhances the reliability of a closed-loop control system?
A. Absence of sensors
B. Predetermined operation
C. Continuous monitoring and adjustment
D. Simple design
Show the Answer
Continuous monitoring and adjustment
Question 7
What advantage do open-loop systems have over closed-loop systems?
A. Higher accuracy
B. Real-time adjustments
C. Lower complexity and cost
D. Self-correction ability
Show the Answer
Lower complexity and cost
Question 8
Which application is best suited for an open-loop control system?
A. Maintaining room temperature
B. Automated traffic lights
C. Cruise control in vehicles
D. Automatic braking system
Show the Answer
Automated traffic lights
Question 9
Which of the following is an example of a closed-loop control system?
A. A washing machine timer
B. A toaster
C. A thermostat-controlled heater
D. A microwave oven
Show the Answer
A thermostat-controlled heater
Question 10
Which real-life example best illustrates an open-loop system?
A. Cruise control in a car
B. Microwave cooking for a set time
C. Refrigerator maintaining temperature
D. Automatic braking system
Show the Answer
Microwave cooking for a set time
Question 11
Which home appliance operates as a closed-loop control system?
A. Toaster
B. Washing machine
C. Air conditioner
D. Electric kettle
Show the Answer
Air conditioner
Question 12
What type of control system does a basic light switch represent?
A. Open-loop system
B. Closed-loop system
C. Hybrid system
Show the Answer
Open-loop system
Question 13
How does an automatic irrigation system with soil moisture sensors function as a closed-loop system?
A. Waters plants at fixed intervals
B. Adjusts watering based on soil moisture levels
C. Uses a preset watering schedule
D. Operates manually by the user
Show the Answer
Adjusts watering based on soil moisture levels
Question 14
Which transportation system is an example of a closed-loop control system?
A. Bicycle
B. Manual transmission car
C. Autonomous vehicle
D. Skateboard
Show the Answer
Autonomous vehicle
Question 15
Identify the open-loop control system from the options below.
A. Cruise control in a car
B. Room heater with thermostat
C. Toaster
D. Automatic braking system
Show the Answer
Toaster
Question 16
Which of the following is an open-loop control system?
A. Electric kettle with auto shutoff
C. Manual washing machine
D. Central heating system
Show the Answer
Manual washing machine
Question 17
Select the example that best represents a closed-loop control system.
A. Electric fan with speed settings
B. Timer-based sprinkler system
C. Refrigerator
D. Gas stove
Show the Answer
Refrigerator
Question 18
Identify the closed-loop control system from the following options.
A. Electric oven with a timer
B. Bicycle
C. Cruise control in a car
D. Ceiling fan
Show the Answer
Cruise control in a car
Question 19
Which of the following is a closed-loop control system?
A. Electric clock
B. Automatic door opener
C. Manual hand drill
D. Simple alarm clock
Show the Answer
Automatic door opener
Question 20
In control systems, what does feedback refer to?
A. Input signal modification
B. Output signal comparison
C. Output signal feeding back into the system
D. Signal amplification
Show the Answer
Output signal feeding back into the system
Question 21
Which feature is associated with closed-loop systems?
A. Fixed operation cycle
B. No error correction
C. Simple design
D. Feedback control
Show the Answer
Feedback control
Question 22
Why might an open-loop system be preferred over a closed-loop system?
A. Higher accuracy
B. Better error correction
C. Simpler design
D. Higher reliability
Show the Answer
Simpler design
Question 23
Which of the following is a disadvantage of a closed-loop control system?
A. It cannot self-correct
B. It is more complex and expensive
C. It lacks accuracy
D. It has no feedback
Show the Answer
It is more complex and expensive
Question 24
How does feedback improve the performance of a control system?
A. By eliminating the need for input
B. By reducing system cost
C. By comparing the output to the desired setpoint and adjusting accordingly
D. By increasing system complexity
Show the Answer
By comparing the output to the desired setpoint and adjusting accordingly
Question 25
Which component is essential in a closed-loop control system but not in an open-loop system?
A. Actuator
B. Sensor
C. Feedback mechanism
D. Controller
Show the Answer
Feedback mechanism
Question 26
Which term describes the difference between the desired and actual output in a control system?
A. Gain
B. Offset
C. Error
D. Hysteresis
Show the Answer
Error
Question 27
In which scenario would an open-loop system be more appropriate than a closed-loop system?
A. Precision temperature control
B. Automated control
C. Basic timed operations
D. Cruise control in vehicles
Show the Answer
Basic timed operations
Question 28
Which control system is better suited for processes where the environment is highly variable?
A. Open-loop control system
B. Feedforward control system
C. Closed-loop control system
Show the Answer
Closed-loop control system
Question 29
Identify a characteristic that is exclusive to closed-loop control systems.
A. Fixed operation schedule
B. Lack of sensors
C. Continuous error correction
D. Low implementation cost
Show the Answer
Continuous error correction
Question 30
What type of control system uses a predetermined sequence of operations?
A. Open-loop control system
B. Closed-loop control system
C. Hybrid control system
D. Adaptive control system
Show the Answer
Open-loop control system
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