Measurement and Instrumentation Assertion (A): A hot wire ammeter has a cramped scale. Reason (R): The heat is proportional to square of current. Both A and R are true and R is correct explanation of A. A is ture and R is false. Both A and R are true and R is not correct explanation of A. A is false and R is ture. Both A and R are true and R is correct explanation of A. A is ture and R is false. Both A and R are true and R is not correct explanation of A. A is false and R is ture. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Wagner earthing device is used to eliminate errors due to None of these Electromagnetic coupling Both A and B Electrostatic coupling None of these Electromagnetic coupling Both A and B Electrostatic coupling ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the expression for momentum? force × displacement mass × acceleration mass × velocity change of velocity / time force × displacement mass × acceleration mass × velocity change of velocity / time ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The measurement of a quantity none of these. is a comparison of an unknown quantity with known quantity. is a comparison of an unknown quantity with another quantity. is a comparison of an unknown quantity with standard. none of these. is a comparison of an unknown quantity with known quantity. is a comparison of an unknown quantity with another quantity. is a comparison of an unknown quantity with standard. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and stray fields are inclined at 30o. parallel. inclined at 60o. perpendicular. inclined at 30o. parallel. inclined at 60o. perpendicular. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The ratio of change in output to the change in the input is called repeatability sensitivity precision resolution repeatability sensitivity precision resolution ANSWER DOWNLOAD EXAMIANS APP
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