Electrical and Electronic Systems Design: Master the Fundamentals

Question 1

Classify the following device: Which one is NOT a type of power supply?

Accepted Answer

Uninterruptible power supply

Answer

Linear power supply

Answer

Switched-mode power supply

Question 2

In designing a power supply for an electronic system, what is a crucial factor to consider?

Accepted Answer

The nature of the load being powered

Answer

The dimensions of the enclosure

Answer

The color of the wiring

Answer

The manufacturer of the components

Question 3

Which component of a control system measures and provides feedback on the actual output?

Accepted Answer

Sensor

Answer

Controller

Answer

Actuator

Answer

Feedback element

Question 4

What is the standard unit used to measure electrical power?

Accepted Answer

Watts

Answer

Volts

Answer

Amps

Answer

Ohms

Question 5

What is the main purpose of a voltage regulator?

Accepted Answer

Maintain a stable voltage output

Answer

Regulate current flow

Answer

Convert AC voltage to DC voltage

Answer

Amplify voltage signals

Question 6

What is the primary function of a diode in electrical circuits?

Accepted Answer

Allow current flow in one direction only

Answer

Block current flow in both directions

Answer

Increase voltage

Answer

Decrease current

Question 7

When troubleshooting an electrical or electronic system, what should be the primary focus for technicians?

Accepted Answer

Prioritizing personal safety and hazard prevention

Answer

Identifying the faulty component swiftly

Answer

Using tools and equipment without delay

Answer

Working in a well-lit and organized area

Question 8

Which of these is not a common type of control system architecture?

Accepted Answer

State-space

Answer

Open-loop

Answer

Closed-loop

Answer

Feedforward

Question 9

Which of the following is NOT a type of power supply?

Accepted Answer

Regulated

Answer

Linear

Answer

Switching

Answer

Uninterruptible

Question 10

What is the primary purpose of an amplifier?

Accepted Answer

To increase the power of a signal

Answer

To increase the voltage of a signal

Answer

To increase the current of a signal

Answer

To decrease the noise of a signal

Question 11

Which of the following is NOT a type of control system?

Accepted Answer

Transformer

Answer

Open-loop

Answer

Closed-loop

Answer

Proportional

Question 12

What is the purpose of a feedback loop in a closed-loop control system?

Accepted Answer

To compare the actual output to the desired output

Answer

To amplify the error signal

Answer

To control the input to the system

Answer

To reduce the noise in the system

Question 13

What is the fundamental difference between a digital and an analog signal?

Accepted Answer

Analog signals are continuous, while digital signals are discrete.

Answer

Digital signals are continuous, while analog signals are discrete.

Answer

Digital signals are more accurate than analog signals.

Answer

Analog signals are more versatile than digital signals.

Question 14

How does negative feedback enhance the precision of electronic control systems?

Accepted Answer

Negative feedback compares the system's output to the desired output and adjusts the input to minimize the difference.

Answer

Negative feedback amplifies the system's gain, making it less sensitive to errors.

Answer

Negative feedback is used to expand the system's frequency range.

Answer

Negative feedback is only used in closed-loop control systems.

Question 15

Which of the following is the primary purpose of a rectifier in an electronic circuit?

Accepted Answer

Converts AC to DC

Answer

Amplifies signals

Answer

Filters noise

Answer

Regulates voltage

Question 16

Which design principle should be prioritized to ensure safety in electrical and electronic systems?

Accepted Answer

Isolation

Answer

Reliability

Answer

Efficiency

Answer

Maintainability

Question 17

What is the primary function of a fuse in an electrical circuit?

Accepted Answer

Protects the circuit from overcurrent

Answer

Stores electrical energy

Answer

Filters electrical noise

Answer

Regulates voltage

Question 18

Which type of sensor is commonly used to measure temperature in electronic systems?

Accepted Answer

Thermistor

Answer

Photoresistor

Answer

Strain gauge

Answer

Hall effect sensor

Question 19

What is the primary advantage of using a programmable logic controller (PLC) in industrial automation?

Accepted Answer

Flexibility and reprogrammability

Answer

High speed

Answer

Low cost

Question 20

Which communication protocol is commonly used in building automation systems?

Accepted Answer

BACnet

Answer

CANbus

Answer

Modbus

Answer

Zigbee

Question 21

What is the purpose of a heat sink in an electronic system?

Accepted Answer

Dissipates heat from components

Answer

Filters electrical noise

Answer

Converts signals

Answer

Regulates voltage

Question 22

Which of the following is NOT a type of power supply?

Accepted Answer

Amplifier

Answer

Regulated power supply

Answer

AC power supply

Answer

DC power supply

Question 23

What is the main function of an amplifier in an electrical system?

Accepted Answer

To increase the amplitude of a signal

Answer

To isolate one part of the system from another

Answer

To convert AC to DC

Answer

To regulate the voltage of a signal

Question 24

What is the key difference between an analog and a digital signal?

Accepted Answer

Analog signals are continuous, while digital signals are discrete.

Answer

Analog signals are used to transmit voice, while digital signals are used to transmit data.

Answer

Analog signals are more accurate than digital signals.

Question 25

What is the primary purpose of a logic gate in a digital circuit?

Accepted Answer

To perform logical operations on input signals

Answer

To regulate voltage

Answer

To amplify signals

Question 26

Which of the following materials is a semiconductor?

Accepted Answer

Silicon

Answer

Copper

Answer

Plastic

Answer

Aluminum

Question 27

What is the main function of a diode in an electrical circuit?

Accepted Answer

To allow current to flow in only one direction

Answer

To convert analog signals to digital signals

Answer

To amplify signals

Answer

To regulate voltage

Question 28

What is the primary purpose of a capacitor in an electrical circuit?

Accepted Answer

To store electrical energy

Answer

To convert analog signals to digital signals

Answer

To regulate voltage

Answer

To amplify signals