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ISRO Technician-B Instrument Mechanic 2019
49

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

49) The temperature at which Farenheit and Centigrade scale reads the same value

-40

32

0

can never be the same

Answer is:

-40

Explanation:

There is one point on the Fahrenheit and Celsius scales where the temperatures in degrees are equal. This is -40 °C and -40 °F.

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

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

50) A Voltmeter of range 0-200 V has an accuracy of 0.75% of its full scale. If it is used to measure 50 V, what will be % error in the measurement?

2%

3%

1.50%

0.75%

Answer is:

3%

51) How many poles should be there for an AC motor to run at 1500 rpm from a 50Hz supply?

2

4

10

8

Answer is:

4

52) What is the effect of putting an Emitter bypass capacitor in a single stage Common Emitter Amplifier?

DC Input resistance decreases

AC gain increases

AC gain decreases

No effect

Answer is:

AC gain increases

53) What will be the Ampere hour rating of a battery formed by connecting 3 parallel rows of 4 cells in series, if each cell is rated at 1.5 V, 2Ah?

2 Ah

6 Ah

8 Ah

12 Ah

Answer is:

6 Ah

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

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