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WorksheetsMCQ Quiz on Open-Loop and Closed-Loop Systems
Total questions: 20
Worksheet time: 10mins
Which of the following is an open-loop system?
A) Electric toaster
B) Air conditioner
C) Automatic washing machine
D) Cruise control
A ceiling fan without a speed sensor is an example of:
A) Closed-loop system
B) Open-loop system
C) Adaptive system
D) Servo system
Which of these is a closed-loop system?
A) Traffic light timer
B) Refrigerator
C) Electric kettle without thermostat
D) Hand dryer (push-button type)
A simple hand water pump is:
A) Open-loop system
B) Closed-loop system
C) Feedback-controlled
D) Adaptive
An automatic electric iron with a thermostat is:
A) Closed-loop system
B) Open-loop system
C) Manual control
D) Non-feedback system
A microwave oven with timer but no temperature sensor is:
A) Closed-loop
B) Open-loop
C) Hybrid system
D) None of these
A smart room heater that adjusts power based on temperature is:
A) Open-loop
B) Closed-loop
C) No-loop
D) Manual system
Which is an open-loop system?
A) Sprinkler controlled by soil moisture sensor
B) Sprinkler running on timer
C) Sprinkler with rain detector
D) Smart irrigation system
A cruise control system in a car is:
A) Open-loop
B) Closed-loop
C) No feedback
D) Open loop with manual override
A blender/mixer that runs for a fixed time set by the user is:
A) Closed-loop
B) Open-loop
C) Semi-automatic
D) Adaptive
An automatic blood pressure monitor is:
A) Open-loop
B) Closed-loop
C) No-loop
D) Feed-forward only
A room cooler that just runs for a set time without sensing room temperature is:
A) Open-loop
B) Closed-loop
C) Feed-forward
D) Adaptive
Which of these is a closed-loop system?
A) Automatic braking in car
B) Manual braking
C) Bicycle bell
D) Hand blender
A traffic light that changes based on a preset timer is:
A) Closed-loop
B) Open-loop
C) Feedback-based
D) Semi-automatic
A traffic light that changes based on traffic density is:
A) Open-loop
B) Closed-loop
C) No-loop
D) Feed-forward
A TV remote control adjusting volume is an example of:
A) Open-loop
B) Closed-loop
C) Automatic feedback
D) Adaptive
A smart washing machine adjusting water level by load is:
A) Open-loop
B) Closed-loop
C) Manual system
D) No feedback
A garden light that turns on at dusk automatically is:
A) Closed-loop
B) Open-loop
C) Manual
D) No control
A gas stove where the user controls the flame without sensing the heat level of the pan is:
A) Closed-loop
B) Open-loop
C) Feedback-based
D) Adaptive
An elevator system that adjusts its position based on floor sensors is:
A) Open-loop
B) Closed-loop
C) No feedback
D) Feed-forward
