Which of the following is an example of an analog signal? A. A sine wave B. A binary sequence C. A digital clock’s output D. Morse code Answer: A What is a digital signal? A. A continuous signal that varies smoothly over time B. A discrete signal represented by binary values (0s and 1s) C. … Read more
What is a signal in the context of signal processing? A. A system that processes data B. A function representing physical quantities over time or space C. A random noise sequence D. A device used for communication Answer: B Which of the following is an example of a continuous-time signal? A. Digital audio B. Analog … Read more
What is the primary function of a UPS? A. To increase voltage levels B. To provide backup power during outages C. To regulate the temperature of electronic devices D. To convert AC to DC power Answer: B Which of the following is NOT a component of a UPS system? A. Battery B. Inverter C. Cooling … Read more
1. The primary advantage of a Switched Mode Power Supply (SMPS) over a Linear Power Supply is: A. Higher efficiency B. Lower cost C. Higher weight D. Simpler design Answer: A. Higher efficiency 2. In a Switched Mode Power Supply, the conversion of AC to DC is achieved through: A. Rectification B. Switching C. Filtering … Read more
1. The primary function of a rectifier is to: A. Convert DC to AC B. Convert AC to DC C. Amplify the AC signal D. Filter the AC signal Answer: B. Convert AC to DC 2. A half-wave rectifier uses how many diodes in its circuit? A. One B. Two C. Three D. Four Answer: … Read more
1. Power electronics is primarily concerned with: A. The generation of power B. The conversion, control, and regulation of electrical power C. The transmission of power D. The storage of electrical power Answer: B. The conversion, control, and regulation of electrical power 2. Which of the following is NOT a typical application of power electronics? … Read more
1. Power electronics is primarily concerned with: A. The generation of power B. The conversion, control, and regulation of electrical power C. The transmission of power D. The storage of electrical power Answer: B. The conversion, control, and regulation of electrical power 2. Which of the following is NOT a typical application of power electronics? … Read more
1. What is the primary function of a function generator? A. To measure voltage B. To generate various types of electrical waveforms C. To convert DC to AC D. To measure frequency Answer: B. To generate various types of electrical waveforms 2. Which of the following waveforms can typically be generated by a function generator? … Read more
1. The primary function of an oscilloscope is to: A. Measure the current in a circuit B. Display the waveform of an electrical signal C. Measure voltage drop across a resistor D. Measure resistance of a component Answer: B. Display the waveform of an electrical signal 2. Which of the following parameters can be measured … Read more
1. What is the primary function of a multimeter? A. Measure only voltage B. Measure current and voltage C. Measure voltage, current, and resistance D. Measure only resistance Answer: C. Measure voltage, current, and resistance 2. Which of the following measurements can be performed using a digital multimeter? A. Voltage B. Current C. Resistance D. … Read more