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Consider the following statements about hybrid ring
| |
A. | 1, 2, 3 and 4 [Wrong Answer] |
B. | 1, 3 and 4 [Correct Answer] |
C. | 1 and 2 [Wrong Answer] |
D. | 2, 3 and 4 [Wrong Answer] |
View Answer
Explanation:-
Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ Audio frequency range lies between
20 Hz and 20 kHz
20 kHz and 20 MHz
2 MHz and 20 MHz
20 MHz and 200 MHz
⇒ One T state is precisely equal to one clock period.
TRUE
FALSE
⇒ What is the gray code word for EX-OR the binary number 101011?
101011
110101
111110
11111
⇒ In the 2's complement Adder-Subtractor
sign magnitude numbers represent negative numbers
the sign magnitude numbers have "1" as leading bit
the sign magnitude numbers have '0' as leading bit
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⇒ A dynamometer wattmeter is suitable for both dc and ac.
TRUE
FALSE
⇒ In a low power factor wattmeter, compensation for pressure coil current is provided.
TRUE
FALSE
⇒ A 1000 kHz carrier wave modulated 40% at 4000 Hz is applied to a resonant circuit tuned to a carrier frequency and having Q = 140. What is the degree of modulation after transmission through this circuit?
0.4
0.2
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0.54
⇒ A Hartley oscillator uses FET with g_{m} of 2 ms and r_{d} = 2 KΩ. The total coil inductance is 10 μH with turns ratio of input to output side of 1 : 10. It is tuned with a 50 pf capacitor. Find frequency of oscillations, amplifier gain margin in dB.
7.11 MHz, 13.97 dB
7.3 MHz, 14.1 dB
6.93 MHz, 12.9 dB
7.4 MHz, 13 dB
⇒ A NAND gate has 3 inputs and one output. The number of thyristors required for this gate are
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⇒ Maximum effective aperture (A_{e})max of short dipole antenna is
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f = 1666.67 Hz
⇒ Thermal run away of a transistor occurs when
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⇒ A half adder adds __________ bits and a full adder adds __________ bits.
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⇒ If P = 250 W and p.f. = 0.707 lagging, Q =
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⇒ The effective refraction index of the ionosphere for radio wave is
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⇒ If X(z) = (1 - a)z^{-1}/[(1 - z^{-1})(1 - az^{-1})] and 1 < |z|, the final value of x_{k} is
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⇒ Which of the following meters requires an external power source for its operation?
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⇒ A source generates three symbols with probabilities 0.25, 0.25, 0.50 at a rate of 3000 symbols per second. Assuming independent generation of symbols, the most efficient source encoder would have average bit rate is as
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⇒ Two network said to be dual to each other
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⇒ In ferromagnetic materials
the atomic magnetic moments are antiparallel and unequal
the atomic magnetic moments are parallel
the constituent is iron only
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⇒ Audio frequency range lies between
20 Hz and 20 kHz
20 kHz and 20 MHz
2 MHz and 20 MHz
20 MHz and 200 MHz
⇒ One T state is precisely equal to one clock period.
TRUE
FALSE
⇒ What is the gray code word for EX-OR the binary number 101011?
101011
110101
111110
11111
⇒ In the 2's complement Adder-Subtractor
sign magnitude numbers represent negative numbers
the sign magnitude numbers have "1" as leading bit
the sign magnitude numbers have '0' as leading bit
2's complement represents positive numbers
⇒ A dynamometer wattmeter is suitable for both dc and ac.
TRUE
FALSE
⇒ In a low power factor wattmeter, compensation for pressure coil current is provided.
TRUE
FALSE
⇒ A 1000 kHz carrier wave modulated 40% at 4000 Hz is applied to a resonant circuit tuned to a carrier frequency and having Q = 140. What is the degree of modulation after transmission through this circuit?
0.4
0.2
0.27
0.54
⇒ A Hartley oscillator uses FET with g_{m} of 2 ms and r_{d} = 2 KΩ. The total coil inductance is 10 μH with turns ratio of input to output side of 1 : 10. It is tuned with a 50 pf capacitor. Find frequency of oscillations, amplifier gain margin in dB.
7.11 MHz, 13.97 dB
7.3 MHz, 14.1 dB
6.93 MHz, 12.9 dB
7.4 MHz, 13 dB
⇒ A NAND gate has 3 inputs and one output. The number of thyristors required for this gate are
1
2
3
3 or 4
⇒ Maximum effective aperture (A_{e})max of short dipole antenna is
1.119 λ^{2}
0.119 λ^{2}
1.19 λ^{2}
1.919 λ^{2}
⇒ Which is known as flash converter?
Weighted resistor D/A converter
Parallel A/D converter
Stair step A/D converter
Up-down counter type A/D converter
⇒ For BJT transistor. The maximum power dissipation is specified as 350 mW if ambient temperature is 25°C. If ambient temperature is 60°C the maximum power dissipation should be limited to about
100 mW
250 mW
450 mW
600 mW
⇒ An m derived low pass filter has f_{c} = 1000 Hz and m = 0.6. This filter will have infinite attenuation at
f = 1250 Hz
all frequencies above 1000 Hz
f = 1562.5 Hz
f = 1666.67 Hz
⇒ Thermal run away of a transistor occurs when
heat dissipation from transistor is excessive
transistor joints melt due to high temperature
there is excessive leakage current due to temperature rise
none of the above
⇒ The F.T. of a conjugate symmetric function is always
imaginary
real
conjugate Unsymmetric
conjugate symmetric
⇒ A half adder adds __________ bits and a full adder adds __________ bits.
two, three
three, four
four, six
two, four
⇒ If P = 250 W and p.f. = 0.707 lagging, Q =
250 vars
- 250 vars
176.7 vars
- 176.75 vars
⇒ If u is input, y is output and a, b are constants, the system y = au + b
is linear
is nonlinear
may be linear or nonlinear dependig on values of a and b
may be linear or nonlinear depending on value of u
⇒ The effective refraction index of the ionosphere for radio wave is
more than unity
less than unity
equal to unity
either more or less than unity depending on the electron concentration
⇒ Digital technologies being used now-a-days are
DTL and EMOS
TTL, ECL, CMOS and RTL
TTL, ECL and CMOS
TTL, ECL. CMOS and DTL
⇒ If a sample of germanium and a sample of silicon have the same impurity density and are kept at room temperature
both will have equal value of resistivity
both will have equal negative resistivity
resistivity of germanium will be higher than that of silicon
resistivity of silicon will be higher than that of germanium
⇒ Which of the following components is essential for a voltage multiplier circuit?
Resistor
Inductor
Capacitor
Both (a) and (c)
⇒ In a four variable K map eight adjacent cells give
single variable term
two variable term
three variable term
four variable term
⇒ The depletion layer in a reverse biased p-n junction is due to the presence of
electrons
holes
both electrons and holes
immobile ions
⇒ A capacitor having capacitance C is raised to voltage V. The energy stored will be
CV^{2}
V^{2}/C
0.5 V^{2}C
0.5 C^{2}V
⇒ If X(z) = (1 - a)z^{-1}/[(1 - z^{-1})(1 - az^{-1})] and 1 < |z|, the final value of x_{k} is
0
1
∞
2
⇒ Which of the following meters requires an external power source for its operation?
P.M.M.C. meter
Hot wire ammeter
Electronic voltmeter
Electrodynamometer
⇒ A source generates three symbols with probabilities 0.25, 0.25, 0.50 at a rate of 3000 symbols per second. Assuming independent generation of symbols, the most efficient source encoder would have average bit rate is as
6000 bits/sec
4500 bits/sec
3000 bits/sec
1500 bits/sec
⇒ Two network said to be dual to each other
if mesh equation of one is same to other of node equation
if mesh equation of both is same
if node equation of both is same
neither mesh equation nor node equation is same
⇒ In ferromagnetic materials
the atomic magnetic moments are antiparallel and unequal
the atomic magnetic moments are parallel
the constituent is iron only
one of the constituents is iron