ISRO Technician-B Instrument Mechanic Question Paper - 2019 (Set-1) with Answer Key

ISRO Technician-B Instrument Mechanic Question Paper - 2019 (Set-1) with Answer Key

31) If the input frequency of a bridge rectifier is 100Hz, its output frequency will be

Answer is:

200 Hz

32) An ideal voltage step up transformer with 4:1 turns ratio is connected to a 120V input supply. What will be the current through 100 ohm load resistor at the secondary?

Answer is:

4.8A

33) Calculate the frequency of the pulse train with 2 ms ON time and 3 ms OFF time.

Answer is:

200 Hz

34) Which of the following is not an LC oscillator?

Answer is:

Wien Bridge

35) At what rate should a coil of 100 turns cuts magnetic lines of force to induce a voltage of 100 V

Answer is:

60 Wb/min

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