u930973931_answers 20 min Score: 0 Attempted: 0/20 Subscribe 1. What is the primary purpose of a communication system? (A) To transfer information from one point to another (B) To amplify signals (C) To convert analog signals to digital signals (D) To suppress noise 2. Which of the following is NOT a basic element of a communication … Read more
20 min Score: 0 Attempted: 0/20 Subscribe 1. What is the purpose of modulation in communication systems? (A) To eliminate noise from the signal (B) To increase the frequency of the signal (C) To encode information onto a carrier wave for transmission (D) To amplify the transmitted signal 2. Which of the following is NOT … Read more
17 min Score: 0 Attempted: 0/17 Subscribe 1. What is noise in the context of electronics? (A) A periodic waveform in a system (B) Amplified output of a circuit (C) Unwanted signals that interfere with the desired signal (D) A signal used for communication 2. Which of the following is NOT a type of electronic … Read more
16 min Score: 0 Attempted: 0/16 Subscribe 1. Which of the following is an example of an analog signal? (A) A digital clock’s output (B) A binary sequence (C) A sine wave (D) Morse code 2. What is a digital signal? (A) A discrete signal represented by binary values (0s and 1s) (B) A continuous … Read more
15 min Score: 0 Attempted: 0/15 Subscribe 1. What is a signal in the context of signal processing? (A) A system that processes data (B) A device used for communication (C) A random noise sequence (D) A function representing physical quantities over time or space 2. Which of the following is an example of a … Read more
Q1: 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 powerAnswer: (B) To provide backup power during outages Q2: Which of the following is NOT a component of a UPS system?(A) Battery(B) Inverter(C) Cooling … Read more
20 min Score: 0 Attempted: 0/20 Subscribe 1. The primary advantage of a Switched Mode Power Supply (SMPS) over a Linear Power Supply is: (A) Higher weight (B) Lower cost (C) Higher efficiency (D) Simpler design 2. In a Switched Mode Power Supply, the conversion of AC to DC is achieved through: (A) Switching (B) … Read more
Q1: 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 signalAnswer: (B) Convert AC to DC Q2: A half-wave rectifier uses how many diodes in its circuit?(A) One(B) Two(C) Three(D) FourAnswer: (A) One Q3: In a full-wave rectifier, the AC signal … Read more
20 min Score: 0 Attempted: 0/20 Subscribe 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 2. Which of the following is NOT a typical application of power electronics? (A) Amplification of … 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