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Year 2023
September
Week # 2
Expire on 07 Oct 2023
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September
Week # 3
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September
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October
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FAQs
March
Week # 2 Quiz 4
Q1.
A microprocessor consists of
ALU
Memories
I/O devices
all of the above
Q2.
Snubber circuit is used to limit the rate of
Rise of current
Conduction period
Rise of voltage across SCR
All of above
Q3.
As per Electricity Act 2003, any generating company may establish, operate and maintain a generating station without obtaining a licence under this Act if it complies with the technical standards relating to connectivity with the grid referred to in which section?
Section 69
Section 71
Section 73
Section 75
Q4.
An R-L series circuit draws 15 mA current from a 120 V, 50 Hz supply. The current lags the voltage by 60°. The value of resistance R is
1 k\(\Omega\)
2 k\(\Omega\)
4 k\(\Omega\)
8 k\(\Omega\)
Q5.
Let \(\dot{x} = \begin{bmatrix}1 & 2 \\ 0 & 1 \end{bmatrix} x + \begin{bmatrix} 0 \\ 1 \end{bmatrix} u \quad\) and \(\quad y=\begin{bmatrix} b & 0 \end{bmatrix}\: x\)
Where b is an unknown constant. This system is
Observable for all values of b
Observable for all non-zero values of b
Unobservable for all values of b
Unobservable for all non-zero values of b
Q6.
A 3-phase, 50 Hz, 6 pole induction motor runs at 960 rpm at full load. The slip 's' and frequency of rotor 'fr' are______and_______ respectively.
4%, 20 Hz
2%, 100 Hz
3%, 50 Hz
4%, 2 Hz
Q7.
An ideal operational amplifier has________.
zero common-mode rejection
infinite bandwidth
infinite output impedance
zero input impedance
Q8.
D.C. series motor is very suitable for electric rolling mills because of
low maintenance cost
possibility of speed control
high starting torque
constant speed
Q9.
For a constant vector \(\bar{a}\) and \(\bar{r} = x \bar{i} + y \bar{j} + z \bar{k}\), \( \nabla \times (\bar{a} \times \bar{r} ) \) =__________ .
\(\bar{a}\)
\(- \bar{a} \)
\(\frac{\bar{a}}{z}\)
None of these
Q10.
Ladder logic programming consists primarily of
Virtual relay contacts and coils
Logic gate symbols with connecting lines
Function blocks with connecting lines
Text-based code
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