88.

89.

90.

91.

92.

93.

94.

95.

96.

97.

98.

99.

100. Which lamp shows stroboscopic effect ?

075/2022 =

Aliasing occurs when
(A) 8 > 29 (B)
(൭ fs>2fr (D)

A signal x(t) = cos(3nt) + 2cos(10zt) is ideally sam

interval between the samples.
(A) 5 seconds (B)
(C) 0.1 seconds (D)

An anti-aliasing filter is a

(A) High pass filter (B)
(C) Band pass filter (D)
Which of the following is a passive transducer ?
(A) Linear potentiometer (B)
(൭ PVcell (D)
In LVDT, the secondary windings are connected in
(A) Parallel opposition (B)
(C) Parallel aiding (D)
Which of the following is a primary cell ?
(^) Zine Carbon dry cell (B)
(C) Nickel Cadmium cell (D)

fs = 28
fs > 28

led. Find the maximum allowable

0.2 seconds
0 seconds

Low pass filter
None of the above

Thermocouple
Piezoelectric crystal

Series ai
Series op

ing
osition

Lead acid cell
All the above

In series grouping of batteries, increase in the number of cells results in

(A) Increase in current (B)
(C) Decrease in current (D)
Due to moisture content in soil, the earth resistance
(൧) increases (B)
(C) decreases (D)

The purpose of earthing is to

(A) _ provide a high resistance path to ground
(B) completely block the current to earth
(೮) _ provide a low resistance path to earth
(D) None of the above

Which is the advantage of cleat wiring system ?
(A) Durable (B)
(C) Can be used for permanent wiring (D)

Constant current
Constant voltage

remains constant
None of the above

Moisture proof
Easy to locate fault in wiring

Which wiring method provides the best mechanical protection ?

(^) Cleat wiring (B)

(C) Wooden casing and capping (D)
Candela is the unit of

(^) Illuminance (B)

(C) Luminous intensity of a source (D)

(A)
(0)

11086050001! lamp
Halogen lamp (D)

Metal conduit wiring
TRS wiring

Luminous flux
Fluorescence

Fluorescent lamp
All the above