Measurement and Instrumentation
Alternating current is measured by

Moving iron repulsion type voltmeter
Electrostatic ammeter
Permanent magnet type ammeter
Induction ammeter

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Measurement and Instrumentation
A 8085 microprocessor consist of

 Arithmetic and Logic Units (ALU), Control Unit (CU) and Registers.
 Arithmetic and Logic Units (ALU), Control Unit (CU), Registers and Memory.
 Arithmetic and Logic Units (ALU), Control Unit (CU), Registers and I/O devices.
 Arithmetic and Logic Units (ALU), Control Unit (CU) and I/O devices.

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Measurement and Instrumentation
Which of following is not correct?

 Voltmeter should have very high resistance.
 A shunt should have a very low resistance.
  An electronic voltmeter draw appreciable current from the source.
 An ammeter should have a very low resitance.

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Measurement and Instrumentation
Which of following statement are correct in case of power factor meter?

 The deflection is proportional to phase angle between field coil and crossed coil.
 It consist of two coils mounted at right angles to each other.
 Both B and C.
 The restoring torque is provided by a controlling torque.

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