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Consider the following statements:
| |
A. | 1, 2, 3 [Wrong Answer] |
B. | 1, 3, 4 [Wrong Answer] |
C. | 1, 2, 4 [Wrong Answer] |
D. | 2, 3, 4 [Correct Answer] |
View Answer
Explanation:-
Answer : D Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ If frames are repeated at 60 Hz and each frame has 525 lines, the time for scanning one horizontal line (for progressive scanning and no interlacing) is about
320 μs
32 μs
3.2 μs
0.32 μs
⇒ The counter shown in figure is built using 4 negative edge triggered toggle FFs. The FFs can be set synchronously when R = 0. The combinational logic required to realize a modulo 13 counte
F= Q_{4} Q_{3} Q_{2} Q_{1}
F= Q_{4} + Q_{3} + Q_{2} + Q_{1}
F = Q_{4} + Q_{3} + Q_{2} + Q_{1}
F = Q_{4} Q_{3} Q_{2} Q_{1}
⇒
Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
R is correct but A is wrong
⇒ The resistivity of a semiconductor
increases as the temperature increases
decreases as the temperature increases
remains constant even when temperature varies
none of the above
⇒ Resonant circuits are used in
audio amplifiers
RF amplifiers
both audio and RF amplifiers
none of the above
⇒ For the transport lag G(jω) = e^{-jωT}, the polar plot is
a semi circle
a circle
a unit circle
none of the above
⇒ The feedback resistance r_{d} in small signal model of MOSFET is of the order of
1000 MΩ
1 MΩ
1 KΩ
100 Ω
⇒ A better SNR can be obtained in a PCM by
increasing sampling rate above Nyquist rate
decreasing the code bits
reducing channel bandwidth
increasing Quantization levels
⇒ Fourier transform and F(jω) of a signal f(t) has the property
F(jω) = F(-jω)
F(jω) = -F(-jω)
F(jω) = F^{*}(jω)
F(jω) = -F^{*}(-jω)
⇒ A voltage v = 5 + 50 sin ωt/ + 5 sin 5 &omegat is applied to a pure capacitor of capacitance 1 ωF. If f/= 314 rad/sec, current is
1 + 0.0157 cos 314 t + 0.00785 cos 1570 t
0.0157 cos 314 t + 0.00785 cos 1570 t
0.0157 sin 314 t + 0.00785 sin 1570 t
0.0157 sin (314 t / + 45°) + 0.00785 sin (1570 t + 45°)
⇒ Which one of the systems described by the following I/P - O/P relations is time invariant
y(n) = n x(n)
y(n) = x(n) - x(n - 1)
y(n) = x(- n)
y(n) = x(n) cos 2pf_{0}n
⇒ If D, G and η denote the directly, power gain and efficiency of an antenna, then which of the following relation holds :
DGη = 1
η = DG
D = ηG
D = G/η
⇒
Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is true, R is false
A is false, R is true
⇒ In the circuit shown, the device connected to Y5 can have address in the r
2000 - 20FF
2D00 - 2DFF
2E00 - 2EFF
FD00 - FDFF
⇒ The sum of two sine waves of different frequencies is a sine wave.
TRUE
FALSE
⇒ For the transport lag G(jω) = e^{-jωT}, the phase angle
is constant
varies linearly with frequency
varies linearly with low frequencies only
values as per square law
⇒ If t is relaxation time and t_{c} is average time between collisions, then in an isotropic metal
t = t_{c}
t < t_{c}
t_{c} < t
T = 0.01 t_{e}
⇒ A single phase electric heater uses phase controlled thyristors. The firing angle is 90°. The degree of heating is
25% of maximum
50% of maximum
75% of maximum
none of the above
⇒ Consider the following rules in Fortran
All
1 and 2 only
1 and 3 only
2 and 3 only
⇒ From the given circuit below, we can conclude t
BJT is pnp
BJT is npn
transistor is faulty
not possible to determined
⇒
Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is true, R is false
A is false, R is true
⇒ Which of the following is not an application software?
MS Word
DBMS
Worksheet
Lisp
⇒ The noise margin of a TTL gate is about
0.2 V
0.4 V
0.6 V
0.8 V
⇒ If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is
a larger floating point number
a smaller floating point number
either (a) or (b) depending on the actual number
a negative floating point number
⇒ It two voltages are v_{1} = 100 sin (ωt - 30°) and v_{2} = cos ω t then
v_{1} is leading v_{2} by 30°
v_{2} is leading v_{1} by 30°
v_{2} is leading v_{1} by 60°
v_{1} is leading v_{2} by 60°
⇒ In which frequency range is the noise figure in a transistor independent of frequency
intermediate frequencies
high frequency
low frequencies
both low and high frequencies
⇒ Which of the following is not an omnidirectional antenna?
Log periodic
Half-wave dipole
Discone
Marconi
⇒
Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct
⇒ Measurement of Hall coefficient enables the determination of
recovery time of stored carrier
type of conductivity and concentration of charge carriers
temperature coefficient and thermal conductivity
Fermi level and forbidden energy gap
⇒ Troposphere is the portion of atmosphere
nearest to ground
between 50 to 90 km above ground
between 110 to 220 km above ground
between 250 to 350 km above ground
⇒ If frames are repeated at 60 Hz and each frame has 525 lines, the time for scanning one horizontal line (for progressive scanning and no interlacing) is about
320 μs
32 μs
3.2 μs
0.32 μs
⇒ The counter shown in figure is built using 4 negative edge triggered toggle FFs. The FFs can be set synchronously when R = 0. The combinational logic required to realize a modulo 13 counte
F= Q_{4} Q_{3} Q_{2} Q_{1}
F= Q_{4} + Q_{3} + Q_{2} + Q_{1}
F = Q_{4} + Q_{3} + Q_{2} + Q_{1}
F = Q_{4} Q_{3} Q_{2} Q_{1}
⇒
Assertion (A): The root locus of a control system is symmetrical about real axis.
Reason (R): For all polynomials with real coefficients, complex poles always occur in conjugate pairs.
Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
R is correct but A is wrong
⇒ The resistivity of a semiconductor
increases as the temperature increases
decreases as the temperature increases
remains constant even when temperature varies
none of the above
⇒ Resonant circuits are used in
audio amplifiers
RF amplifiers
both audio and RF amplifiers
none of the above
⇒ For the transport lag G(jω) = e^{-jωT}, the polar plot is
a semi circle
a circle
a unit circle
none of the above
⇒ The feedback resistance r_{d} in small signal model of MOSFET is of the order of
1000 MΩ
1 MΩ
1 KΩ
100 Ω
⇒ A better SNR can be obtained in a PCM by
increasing sampling rate above Nyquist rate
decreasing the code bits
reducing channel bandwidth
increasing Quantization levels
⇒ Fourier transform and F(jω) of a signal f(t) has the property
F(jω) = F(-jω)
F(jω) = -F(-jω)
F(jω) = F^{*}(jω)
F(jω) = -F^{*}(-jω)
⇒ A voltage v = 5 + 50 sin ωt/ + 5 sin 5 &omegat is applied to a pure capacitor of capacitance 1 ωF. If f/= 314 rad/sec, current is
1 + 0.0157 cos 314 t + 0.00785 cos 1570 t
0.0157 cos 314 t + 0.00785 cos 1570 t
0.0157 sin 314 t + 0.00785 sin 1570 t
0.0157 sin (314 t / + 45°) + 0.00785 sin (1570 t + 45°)
⇒ Which one of the systems described by the following I/P - O/P relations is time invariant
y(n) = n x(n)
y(n) = x(n) - x(n - 1)
y(n) = x(- n)
y(n) = x(n) cos 2pf_{0}n
⇒ If D, G and η denote the directly, power gain and efficiency of an antenna, then which of the following relation holds :
DGη = 1
η = DG
D = ηG
D = G/η
⇒
Assertion (A): Different symbols are used for different gates
Reason (R): IEEE symbols are the same as traditional symbols for gates.
Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is true, R is false
A is false, R is true
⇒ In the circuit shown, the device connected to Y5 can have address in the r
2000 - 20FF
2D00 - 2DFF
2E00 - 2EFF
FD00 - FDFF
⇒ The sum of two sine waves of different frequencies is a sine wave.
TRUE
FALSE
⇒ For the transport lag G(jω) = e^{-jωT}, the phase angle
is constant
varies linearly with frequency
varies linearly with low frequencies only
values as per square law
⇒ If t is relaxation time and t_{c} is average time between collisions, then in an isotropic metal
t = t_{c}
t < t_{c}
t_{c} < t
T = 0.01 t_{e}
⇒ A single phase electric heater uses phase controlled thyristors. The firing angle is 90°. The degree of heating is
25% of maximum
50% of maximum
75% of maximum
none of the above
⇒ Consider the following rules in Fortran
- A signed or unsigned real variable name or a real constant is a real expression.
- Two real expressions connected by an arithmetic operator is a real expression.
- A real variable or constant exponential by an integer constant or integer variable is not valid
All
1 and 2 only
1 and 3 only
2 and 3 only
⇒ From the given circuit below, we can conclude t
BJT is pnp
BJT is npn
transistor is faulty
not possible to determined
⇒
Assertion (A): The carry look ahead adder is very fast
Reason (R): The carry look ahead adder generates the carry and sum digits directly.
Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is true, R is false
A is false, R is true
⇒ Which of the following is not an application software?
MS Word
DBMS
Worksheet
Lisp
⇒ The noise margin of a TTL gate is about
0.2 V
0.4 V
0.6 V
0.8 V
⇒ If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is
a larger floating point number
a smaller floating point number
either (a) or (b) depending on the actual number
a negative floating point number
⇒ It two voltages are v_{1} = 100 sin (ωt - 30°) and v_{2} = cos ω t then
v_{1} is leading v_{2} by 30°
v_{2} is leading v_{1} by 30°
v_{2} is leading v_{1} by 60°
v_{1} is leading v_{2} by 60°
⇒ In which frequency range is the noise figure in a transistor independent of frequency
intermediate frequencies
high frequency
low frequencies
both low and high frequencies
⇒ Which of the following is not an omnidirectional antenna?
Log periodic
Half-wave dipole
Discone
Marconi
⇒
Assertion (A): In circular waveguide the attenuation of TE_{01} mode decreases as the operating frequency increases.
Reason (R): The wall currents in a circular waveguide in TE_{Q1} mode are completely circumferential.
Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct
⇒ Measurement of Hall coefficient enables the determination of
recovery time of stored carrier
type of conductivity and concentration of charge carriers
temperature coefficient and thermal conductivity
Fermi level and forbidden energy gap
⇒ Troposphere is the portion of atmosphere
nearest to ground
between 50 to 90 km above ground
between 110 to 220 km above ground
between 250 to 350 km above ground