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Measurement and Instrumentation

Measurement and Instrumentation
How many fundamental units are there ?

 7
 6
 8
 4

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Measurement and Instrumentation
When using ohmmeter, applied voltage is to be disconnected from the circuit because

Voltage source will increase resistance
Current will decrease resistance
The ohmmeter has its own internal battery
None of these

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Measurement and Instrumentation
A thermometer having first order dynamics is subjected to a sudden temperature change of 30oc to 150oc. If it has he time constant of 5 sec, what temperature will be indicated by after 5 sec?

 30o.
 63.25o.
 105.6o.
 150o.

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Measurement and Instrumentation
The high torque to weight ratio in an analog indicating instrument indicates

 none of these.
 nothing related to friction loss.
 high friction loss.
 low friction loss.

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Measurement and Instrumentation
Which of the quantity consists of unit as kg m/sec ?

 Momentum
 Acceleration
 Speed
 Impulse

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Measurement and Instrumentation
In which of the transformer is the secondary nearly short circuited under normal operating condition?

 PT.
 Distribution transformer.
 Power transformer.
 CT.

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