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Closed Loop vs Open Loop Systems Quiz

Total questions: 20

Worksheet time: 12mins

Name
Class
Date
1.

What is the main characteristic that differentiates a closed loop system from an open loop system?

a)

It does not require input

b)

It does not require feedback

c)

It uses feedback to adjust the output

d)

It always runs on a set time

2.

Which of the following is an example of an open loop system?

a)

Cruise control in a car

b)

Thermostat

c)

Simple toaster

d)

Robotic arm with sensor feedback

3.

In a closed loop system, what is the role of feedback?

a)

To start the process

b)

To monitor and adjust the output

c)

To stop the system when needed

d)

To reset the system

4.

Which of the following would best describe the function of a thermostat?

a)

It heats the room for a set amount of time

b)

It adjusts the room temperature based on the desired set point

c)

It cools the room when the weather gets hot

d)

It turns on the heater when it gets dark outside

5.

Why might an open loop system, like a washing machine with a set cycle, be disadvantageous?

a)

It is more expensive than closed loop systems

b)

It requires constant monitoring by the user

c)

It cannot adjust based on how clean the clothes are

d)

It requires feedback to operate

6.

Which of the following is a benefit of using an open loop system?

a)

It offers greater accuracy

b)

It is simpler and more cost-effective

c)

It adjusts automatically to external conditions

d)

It uses sensors to monitor the output

7.

What type of system is a microwave with a pre-set time?

a)

Open loop system

b)

Closed loop system

c)

Hybrid system

d)

Manual system

8.

In a closed loop system like cruise control, what does the system do when it detects a change in speed due to an uphill slope?

a)

It continues at the same power level

b)

It automatically increases the power to maintain the set speed

c)

It turns off the engine

d)

It alerts the driver to adjust the speed

9.

Which of the following would be an appropriate situation for an open loop system?

a)

Controlling the temperature in a house

b)

Operating a robotic arm in a factory

c)

Timing a traffic light in a low-traffic area

d)

Controlling the speed of a car on a busy highway

10.

What is a disadvantage of a closed loop system?

a)

It cannot adapt to changing conditions

b)

It is less accurate than an open loop system

c)

It is more complex and expensive

d)

It always operates at maximum power

11.

When a system has no way to measure or control its product, the system is called an ............

a)

subsystem

b)

open-loop system

c)

closed-loop system

d)

feedback system

12.

What is the best definition for the term OUTPUT in regards to an open or closed loop system.

a)

monitors the input

b)

monitors the output

c)

is the actual results

13.

A system that has a way of automatically controlling or measuring its output, is called a(n) .....

a)

subsystem

b)

open-loop system

c)

closed-loop system

d)

input system

14.

Which of the following best describes the main limitation of an open loop system?

a)

It cannot operate without sensors

b)

It is always more expensive than closed loop systems

c)

It does not use feedback to correct errors

d)

It requires complex programming

15.

What is the primary function of feedback in a closed loop system?

a)

To increase the speed of the system

b)

To provide information for adjusting the output

c)

To reduce the cost of the system

d)

To eliminate the need for user input

16.

Which of the following devices is an example of a closed loop system?

a)

Microwave with a timer

b)

Electric kettle with manual shut-off

c)

Simple alarm clock

d)

Automatic room heater with a thermostat

17.

Which of the following best illustrates the use of feedback in a control system?

a)

A blender that runs until manually stopped

b)

A fan that turns on for a fixed time

c)

A lamp that switches off after a set period

d)

An air conditioner that adjusts cooling based on room temperature

18.

What is a key advantage of a closed loop system over an open loop system?

a)

It is less expensive to build

b)

It can automatically correct errors in output

c)

It requires no sensors

d)

It always operates faster

19.

Which of the following is NOT a feature of an open loop system?

a)

Simple design and operation

b)

Can adjust automatically to disturbances

c)

Output is not measured or compared

d)

Operates without feedback

20.

What happens if there is a disturbance in an open loop system?

a)

The system requests user input to adjust

b)

The system shuts down immediately

c)

The system ignores the disturbance and continues as programmed

d)

The system automatically corrects the output