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Aptitude Test (Mathematics and Soft Skill) DDCET
BASIC ELECTRONICS
Basics of Science and Engineering (DDCET)
CONTROL SYSTEM ENGINEERING
DIGITAL ELECTRONICS
ELECTRICAL CIRCUIT ANALYSIS
ELECTRICAL ENERGY CONSERVATION AND AUDITING
ELECTRICAL ENGINEERING MATERIALS
ELECTRICAL MACHINES
ELECTRICAL VEHICLES
ELECTRICAL WIRING
ELECTROMAGNETICS
MEASUREMENT & INSTRUMENTATION
MICROPROCESSOR AND MICROCONTROLLER INTERFACING
POWER ELECTRONICS & DRIVES
POWER SYSTEM
SIGNALS & SYSTEMS
UTILIZATION OF ELECTRICAL ENERGY
CONTROL SYSTEM ENGINEERING
Q51.
What is the type of closed loop system for the plant transfer function \(G(s) = \frac{K}{s^2(1+Ts)}\) with unity feedback?
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Solution
Q52.
With coefficients \(\alpha_0, \:\alpha_1, \:\alpha_2, \:\alpha_3,\) the transfer function of PID controller can be expressed as
\(\alpha_0+\alpha_1s+\alpha_2s^2\)
\(\frac{\alpha_0+\alpha_1s+\alpha_2s^2}{s}\)
\(\alpha_0+\alpha_1s\)
\(\frac{\alpha_3}{\alpha_0+\alpha_1s+\alpha_2s^2}\)
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Solution
Q53.
Feedback oscillations have a closed loop gain of (where G, H are gain of forward and feedback path)
\(\frac{G}{1 – GH}\)
\(\frac{G}{1 + GH}\)
\(\frac{G}{1 \pm GH}\)
\(\frac{H}{1 + GH}\)
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Solution
Q54.
The transfer function of a Tachogenerator can be best described by
\(K(1+Ts)\)
\(\frac{K}{(1-Ts)}\)
\(K(1-Ts)\)
\(\frac{K}{(1+Ts)}\)
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Solution
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