I am looking for BSNL JTO for Electronics and Communication question papers, will you please provide here???

Here are BSNL JTO for Electronics and Communication question paper:

1. Q-meter works on the principle of
a. series resonance
b. parallel resonance
c. mutual inductance
d. self inductance

2. The bridge circuit shown in Fig. Q2-I
a. cannot be balanced
b. can be balanced but the frequency of
excitation must be known
c. can be balanced for only one frequency
d. can be balanced at any frequency

3. Which one of the following statements is
TRUE for an ‘ideal’ power diode?
a. Forward voltage drop is zero and reverse
saturation current is non-zero.
b. Reverse recovery time is non-zero and
reverse saturation current is zero.
c. Forward voltage drop is zero and reverse
recovery time is zero.
d. Forward voltage drop is non-zero and
reverse recovery time is zero.

4. In a MOSFET, the pinch-off voltage refers to
a. drain-to-source voltage at which drain-tosource
current is zero
b. gate-to-source voltage at which gate-tosource
current is zero
c. drain-to-source voltage at which gate-tosource
current is zero
d. gate-to-source voltage at which drain-tosource
current is zero

5. Which of the following statements is TRUE
for DC switched mode power supply?
a. It cannot provide isolation between input
and output as in rectifiers.
b. It cannot remove ripple as in DC
switching mode regulators.
c. It has two stage conversions: dc-ac and acdc.
d. It is a type of chopper circuit.

For detailed paper here is attachment:

BSNL JTO Exam ECE paper

Attached Files

BSNL JTO Exam ECE paper.pdf (523.8 KB, 95 views)