Top 150+ Solved Measurement and Instrumentation MCQ Questions Answer
Q. If an instrument has cramped scale for larger values, then it follows
a. square law
b. logarithmic law
c. uniform law
d. none of the above
Q. Volt box is a component to
a. extend voltage range
b. measure voltage
c. compare voltage in a box
d. none of the above
Q. E.m.f. of a Weston cell is accurately measured by
a. electrostatic voltmeter
b. hot wire voltmeter
c. isothermal voltmeter
d. electrodynamic voltmeter
Q. The gravity controlled instrument has crowded scale because current is proportional to
a. balancing weight
b. deflection angle
c. sine of deflection angle
d. none
Q. A sensitive galvanometer produces large deflection for a
a. small value of current
b. large value of current
c. large value of power
d. large value of voitage
Q. A multirangq instrument has
a. multiple shunt or series resistances inside the meter
b. multicoii arrangement
c. variable turns of coil
d. multi range meters inside the measurement system
Q. The rectifier instrument is not free from
a. temperature error
b. wave shape error
c. frequency error
d. all of the above
Q. Alternating current is measured by
a. induction ammeter
b. permanent magnet type ammeter
c. electrostatic ammeter
d. moving iron repulsion type voltmeter
Q. Most sensitive galvanometer is
a. elastic galvanometer
b. vibration galvanometer
c. Duddlb galvanometer
d. spot ballistic galvanometer
Q. Instrument transformers are
a. potential transformers
b. current transformers
c. both (a) and (b)
d. power transformers
Q. An instrument transformer is used to extend the range of
a. induction instrument
b. electrostatic instrument
c. moving coil instrument
d. any of the above
Q. Wattmeter cannot be designed on the principle of
a. electrostatic instrument
b. thermocouple instrument
c. moving iron instrument
d. electrodynamic instrument
Q. In an energymeter braking torque is produced to
a. safe guard it against creep
b. brake the instrument
c. bring energy meter to stand still
d. maintain steady speed and equal to driving torque
Q. Various adjustments in an energy meter include
a. light load or friction
b. lag and creep
c. overload and voltage compensation
d. all of the above
Q. The power of a n-phase circuit can be measured by using a minimum of
a. (n - 1) wattmeter elements
b. n wattmeter elements
c. (n + 1) wattmeter elements
d. 2n wattmeter elements