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Excess-3 Code
What is a BCD? What are its advantages and disadvantages? Why is an excess-3 code is called an unweighted code?
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J-K flip-flop
If the input J is connected through K input of J-K flip-flop, the flip-flop will behave as a 1. D(Delay) type flip-flop 2. T-type flip-flop 3. Toggle Switch 4. 2 or 3 above
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Selection sort
The number of swapping needed to sort numbers 22,7,9,31,19 in ascending order using selection sort is ?
A. 4
B. 3
C. 5
D.6 -
Problem: 1. 1100v, 50Hz,delta connected induction motor has a star connected slip ring rotor with stator to stator transformation ratio of 3.8 . the rotor resistance and stand still reactance are 0.012 ohm and 0.25 ohm. Neglecting stator impedance and magnetizing current determine:
i. Rotor current and power factor at start with slip rings shorted.
ii. Rotor current and power factor at 4% slip with slip rings shorted.
iii. External rotor resistance per phase to obtain a starting current of 100A in stator supply lines. -
Steam outlet temperature in turbine
As we know,water boiling point temperature is 100 deg. in which liquid state is convert into the gas state,but in turbine which principle is use by which exhaust temperature is 50-55 deg and is in the stage of steam?
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