By Team EasyExamNotes 1. Which of the following is not a common terminology in control systems?a) Actuatorb) Sensorc) Predictord) ControllerAnswer: c) PredictorExplanation: In control systems, actuators are used … Read more
1. Which type of receiver suffers from the “image signal” problem?a) Superheterodyneb) Tuned radio frequency (TRF)c) AM transmitterd) FM transmitter Answer: b) Tuned radio frequency … Read more
1. What are the two types of angle modulation?a) Amplitude Modulation (AM)b) Frequency Modulation (FM)c) Pulse Modulation (PM)d) Phase Modulation (PM) Explanation: Angle modulation refers … Read more
1. Which modulation technique utilizes both upper and lower sidebands along with a carrier signal? a) Amplitude Modulation (AM)b) Frequency Modulation (FM)c) Phase Modulation (PM)d) … Read more
1. Which mathematical tool is used to represent a signal in the frequency domain? a) Laplace transformb) Fourier transformc) Z-transformd) Hankel transform Answer: b) Fourier … Read more
1. What does state-space analysis provide in system representation?a) Frequency domain representationb) Time domain representationc) Both frequency and time domain representationd) None of the above … Read more
1. Which of the following best describes the purpose of Fourier analysis in the context of discrete time signals? a) To analyze continuous time signalsb) … Read more
1. Which of the following best describes the z-transform?a) A technique used in image processingb) A method for analyzing discrete-time systems in the frequency domainc) … Read more
1. What is the fundamental property of Linear Time-Invariant (LTI) systems?a) They exhibit exponential growthb) They display time-varying behaviorc) Their response is proportional to the … Read more
1. What is a signal in the context of signals and systems? a) Any form of communicationb) A variable representing informationc) A type of noised) … Read more