098/23

90.

91.

92.

93.

94.

95.

Let x(t) = 2u(t) and y(t) = u(t), then x(t) « y(t) is
A) 2u(t) B) 2e*u(t) C) 2tu(t) D) 2u(t?)

The table below show the combinations of signal conditioning circuits of the different
types of transducers, out of these, the correct combinations are

Transducer Signal conditioning circuit

P. Piezoelectric Charge amplifier

Q. Strain gauge Phase sensitive detector

R. Thermocouple Cold junction compensation

S.L.V.D.T. AC Bridge

A) P,RandS B) R only C) PandR D) All are correct

A resistance wire strain gauge with a gauge factor of 2 is bonded to a steel structural
member subjected to a stress of 150 MN/m?. The modulus of elasticity of steel is
200 GN/m?. The change in the value of gauge resistance due to the applied stress
will be

A) 0.15% B) 0.10% C) 0.05% D) 0.20%

A suitable value of a fixed resistance is usually connected across a thermistor is to
A) Increase the sensitivity B) Improve the linearity
C) Decrease its resistance D) Compensate its self-heating effect

Hall sensor is used to measure
A) Position of shaft B) Angular velocity
C) Strength of magnetic field D) All the above

The electrolyte of nickel-cadmium rechargeable cells is a mixture of

A) Potassium chloride and deionized water

B) Cadmium chloride and deionized water

C) Cadmium peroxide and deionized water
)

D) Potassium hydroxide and deionized water

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