# Measurements and Instrumentation Part 9 ONLINE MCQ EE AND ECE

## Measurements and Instrumentation Part 9 Category –EE Online Test

Attempt Free Measurements and Instrumentation Part 9 Here. Read The Important Electrical MCQ From Below.

 A CRO can display
(a) AC signals
(b) DC signals
(c) Both AC and DC signals
(d) Time invariant signals

 The internal resistance of an ammeter should be
(a) Very small
(b) medium
(c) High
(d) Infinity

Measurements and Instrumentation Part 9

 A galvanometer has
(a) air friction damping
(b) fluid friction damping
(c) Spring coil damping
(d) Eddy current damping

 Electrostatic instruments are normally used for
(a) Low current measurements
(b) High current measurements
(c) Low voltage measurements
(d) High voltage measurements

 In a moving coil instrument, the deflecting torque is proportional to
(a) Current
(b) Square of the current
(c) Squareroot of the current
(d)  sine of the measurand

Measurements and Instrumentation Part 9

 The absolute measurement of resistance is done by
(a) Ohm’s law method
(b) Bridge Method
(c) Rayleigh method
(d) Lorenz method

 To measure the flux, devices used are based on
(a) Voltaic effect
(b) Piezo-electric effect
(c) Hall effect
(d) Photo-voltaic effect

 The form factor in AC is the ratio of
(a) peak value to average value
(b) peak value to rms value
(c) rms value to average value
(d) rms value to peak value

Measurements and Instrumentation Part 9

 PMMC type instruments normally use
(a) Air friction damping
(b) Fluid friction damping
(c) Eddy current damping
(d) None of the above

 In a moving iron meter, the deflecting torque is proportional to
(a) Current through the coil
(b) Square of the current through the coil
(c) Sine of the measurand
(d) Squareroot of the measurand

 In a gravity controlled instrument, the deflection angle is proportional
(a) Measurand
(b) Square of the measurand
(c) sine inverse of measurand
(d) sine of the measurand

Measurements and Instrumentation Part 9

 Ampere is one of the
(a) Supplementary units
(b) Derived units
(c) Base units
(d) Units used to measure charge

 Direct method is used to measure
(a) Length
(b) Temperature
(c) Pressure
(d) Voltage

Measurements and Instrumentation Part 9