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Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Tests  >  Test: Concepts Of State, State Variables And State Model - Electrical Engineering (EE) MCQ

Test: Concepts Of State, State Variables And State Model - Electrical Engineering (EE) MCQ


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10 Questions MCQ Test - Test: Concepts Of State, State Variables And State Model

Test: Concepts Of State, State Variables And State Model for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Test: Concepts Of State, State Variables And State Model questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Concepts Of State, State Variables And State Model MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Concepts Of State, State Variables And State Model below.
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Test: Concepts Of State, State Variables And State Model - Question 1
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The transfer function for the state representation of the continuous time LTI system:
dq(t)/dt=Aq(t)+Bx(t)
Y(t)=Cq(t)+Dx(t)
is given by: 

Detailed Solution for Test: Concepts Of State, State Variables And State Model - Question 1

Answer: a
Explanation: Transfer function which is ratio of Laplace output to the Laplace input when the initial conditions are zero and is calculated by using both the equations.

Test: Concepts Of State, State Variables And State Model - Question 2
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System transformation on function H(z) for a discrete time LTI system expressed in state variable form with zero initial condition 

Detailed Solution for Test: Concepts Of State, State Variables And State Model - Question 2

Answer: a
Explanation: Transfer function which is ratio of Laplace output to the Laplace input when the initial conditions are zero in discrete is same as continuous but in the z-domain.

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Test: Concepts Of State, State Variables And State Model - Question 3
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State space analysis is applicable for non-linear systems and for multiple input and output systems.

Detailed Solution for Test: Concepts Of State, State Variables And State Model - Question 3

Answer: a
Explanation: State space analysis is the technique that used state variables and state model for the analysis and is applicable for non-linear systems and for multiple input and output systems.

Test: Concepts Of State, State Variables And State Model - Question 4
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Assertion (A): Transfer function approach has limitation that it reveals only the system output for a input and provides no information regarding the internal state of the system.
Reason (R): There may be situations where the output of a system is stable and yet some of the system elements may have a tendency to exceed their specified ratings.
Detailed Solution for Test: Concepts Of State, State Variables And State Model - Question 4

Answer: a
Explanation: Transfer function approach has limitation over state variable analysis and for that it reveals only the system output for a input and provides no information regarding the internal state of the system.

Test: Concepts Of State, State Variables And State Model - Question 5
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When human being tries to approach an object, his brain acts as,
Detailed Solution for Test: Concepts Of State, State Variables And State Model - Question 5

Answer: b
Explanation: Brain of human being acts as a controller in the human body system as human body is the control system and when human tries to approach an object the brain of the human acts as controller.

Test: Concepts Of State, State Variables And State Model - Question 6
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For two-phase AC servomotor, if the rotor’s resistance and reactance are respectively R and X, its length and diameter are respectively L and D then,
Detailed Solution for Test: Concepts Of State, State Variables And State Model - Question 6

Answer: c
Explanation: Small X/R gives linear speed torque characteristic. Large L/D gives less inertia and good acceleration characteristic.

Test: Concepts Of State, State Variables And State Model - Question 7
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Consider the following statements relating to synchro’s:
1. The rotor of the control transformer is either disc shaped
2. The rotor of the transmitter is so constructed as to have a low magnetic reluctance
3. Transmitter and control transformer pair is used as an error detector
Which of these statements are correct?
Detailed Solution for Test: Concepts Of State, State Variables And State Model - Question 7

Answer: c
Explanation: Rotor of control transformer is rotatory part of the transformer and is made cylindrical in shape so that air gap is practically uniform.

Test: Concepts Of State, State Variables And State Model - Question 8
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Error detector:
Detailed Solution for Test: Concepts Of State, State Variables And State Model - Question 8

Answer: a
Explanation: Error detector is the part in the armature controlled FHP DC motor where error detector is the first element that compares the final output with desired output and gives the accurate results.

Test: Concepts Of State, State Variables And State Model - Question 9
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Servomotor:
Detailed Solution for Test: Concepts Of State, State Variables And State Model - Question 9

Answer: b
Explanation: Servomotor is a rotary actuator or linear actuator that allows for precise control of angular or linear position, velocity and acceleration a pair of synchronous transmitter and control transformer.

Test: Concepts Of State, State Variables And State Model - Question 10
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Amplifier:
Detailed Solution for Test: Concepts Of State, State Variables And State Model - Question 10

Answer: d
Explanation: Amplifier is an amplidyne which is an amplidyne is an electromechanical amplifier invented during World War II by Ernst Alexanderson. It consists of an electric motor driving a DC generator.

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