BSLNELANGENG

What is the main function of a robot in a factory?

• To cook food

• To perform repetitive tasks automatically

• To entertain workers

• To monitor weather

Which of the following is an example of a digital signal?

• Light intensity changing continuously

• A switch being turned ON or OFF

• The speed of a car increasing gradually

• Sound waves in the air

Which of the following components is used to store electrical energy in a circuit?

• Resistor

• Capacitor

• LED

• None of the above

How does a photoresistor (light-dependent resistor) work?

• It increases resistance when exposed to light

• It decreases resistance when exposed to light

• It generates electricity from light

• It stores energy from light

Ultrasound waves are commonly used in which of the following applications?

• Measuring the depth of water

• Detecting temperature changes

• Measuring electrical resistance

• Generating visible light

Which of the following is the correct order of steps in solving a problem using coding?

• Write code, test it, plan the solution

• Plan the solution, write code, test it

• Test code, plan the solution, write code

• Write code, plan the solution, test it

Which data type is used to store true or false values in many programming languages?

• Integer

• String

• Boolean

• Float

What does 'debugging' mean in coding?

• Writing the initial code

• Removing errors from the code

• Speeding up the code execution

• Translating code into a different language

Which of the following best describes a function in programming?

• A section of code that performs a specific task and can be reused

• A variable that stores user input

• A loop that repeats forever

• A type of error in the code

What is the output of the following code: `print(2 + 3 * 4)` ?

• 20

• 14

• 12

• 10