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Measurement and Instrumentation

Measurement and Instrumentation
A mulliammeter can be used as

Wattmeter
Voltmeter and ammeter
Ohmmeter
Frequency meter

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Measurement and Instrumentation
A spring-controlled moving iron voltmeter draws a current of 1 mA for full scale value of 100V. If it draws a current of 0.5 mA, the meter reading is

 200 V.
 25 V.
 100 V.
 50 V.

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Measurement and Instrumentation
A DC potentiometer is designed to measure up to about 2V with a slide wire of 800 mm. A standard cell of emf 1.18 V obtains balances at 600 mm. A test cell is seen to obtain balance at 680 mm. The emf of test cell is

 1.7 V.
 1.5 V.
 1.34 V.
 1 V.

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Measurement and Instrumentation
A Lissajous pattern on an oscilloscope has 5 horinzontal tangencies and 2 vertical tangencies. The frequency of horizontal input is 100 Hz. The frequency of the vertical will be

 400 Hz.
 625 Hz.
 250 Hz.
 500 Hz.

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Measurement and Instrumentation
A transducer measures a range of 0 – 200 N force with a resolution of 0.15 percent of full scale. What is the smallest change which can be measured by this transducer ?

 0.3 N
 6.66 N
 0.15 N
 3.33 N

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Measurement and Instrumentation
The total current I = I1 + I2 in a circuit is measured I1 = 150 ± 3A , I2 = 250 ± 4 A, where the limits of error are given as standard deviations. I is measured as

 (400 ± 3) A
 (400 ±5) A
 (400 ± 1) A
 (400 ± 2.24) A

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MORE MCQ ON Measurement and Instrumentation

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