Question is ⇒ The power requirement of a RADAR used in military operations is, Options are ⇒ (A) a few watts, (B) about 500 W, (C) about 2000 W, (D) a few megawatts, (E) , Leave your comments or Download question paper.

Question is ⇒ The power requirement of a RADAR used in military operations is, Options are ⇒ (A) a few watts, (B) about 500 W, (C) about 2000 W, (D) a few megawatts, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The power requirement of a RADAR used in military operations is
A.	a few watts [Wrong Answer]
B.	about 500 W [Wrong Answer]
C.	about 2000 W [Wrong Answer]
D.	a few megawatts [Correct Answer]
View Answer 1 -1 Explanation:- Answer : D Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ The analog signal m(t) is given below m(t) = 4 cos 100 pt + 8 sin 200 pt + cos 300 pt, the Nyquist sampling rate will be
1/100
1/200
1/300
1/600

⇒ The communication satellite INSAT-IB had to take up the job of INSAT-IA because the latter collapsed within __________ months of its launch.
12
20
5
36

⇒ Which part of radio spectrum is more crowded?
Lower frequency part
Higher frequency part
Both (a) and (b)
None of these

⇒ The input and output of a continuous time system are respectively denoted by x(t) and y(t) Which of the following descriptions corresponds to a causal system?
y(t) = x(t - 2) + x(t + 4)
y(t) = x(t - 4) + x(t + 1)
y(t) = x(t + 4) + x(t - 1)
y(t) = x(t + 5) + x(t + 5)

⇒ A discrete random variable X takes values from 1 to 5 with probabilities as shown in the table. A student calculates the mean of X and 3.5 and her teacher calculates the variance of X as 1.5. Which of the following statements is t
Both the student and the teacher are right
Both the student and the teacher are wrong
Both the student is wrong but the teacher is right
The student is right but the teacher is wrong

⇒ The frequency of the driving network connected between pins 1 and 2 of a 8085 chip must be
equal to the desired clock frequency
twice the desired clock frequency
four times the desired clock frequency
eight times the desired clock frequency

⇒ In order to achieve good stabilization in potential divider method current I₁ through R₁ and R₂ should be
I₁ > 20 I_B
I₁ > 15 I_B
I₁ < 5 I_B
I₁ > 10 I_B

⇒ The complement of Boolean expression AB (B C + AC) is
(A + B) + (B + C) + (A + C)
A B + (B + C)(A + C)
(A + B) + (B + C) (A + C)
none of the above

⇒ With the switch in STOP position, Y will be equa
0
1
CLK
none of these

⇒ The Boolean expression Y = (A + B + AB) C then Y will be equal to
AC
BC
C
none

⇒ In the given figure R_C = R_L = 1 kΩ, then V_{05 V
2.5 V
1 V
0 V}

⇒ Which of the following statement is false?
The zener diode is uses as a constant voltage source
The SCR is a silicon rectifier with a gate electrode to control when current flows from cathode to anode
The gate electrode in the FET corresponds to the collector in a bipolar transistor
None of the above

⇒ Consider the following; for a loss-less transmission line we can write,

Z_in = - jz₀ for a shorted line with l = λ/8
Z_in = ± j ∞ for a shorted line with l = λ/4
Z_in= jz₀ for an open line with l = λ/2
Z_in = 0 for a matched line of any length

Select the correct answer using the codes given below codes.
1, 2
2, 3
1, 3
2, 4

⇒ It is required that a strain gauge has gauge factor of 100. The proper strain gauge is
constantan strain gauge
nichrome strain gauge
semiconductor strain gauge
alloy strain gauge

⇒ A 1 μF capacitor is connected to 12 V battery. The energy stored in the capacitor is
12 x 10^-6 J
24 x 10^-6 J
48 x 10^-6 J
72 x 10^-6 J

⇒ In a piezoelectric crystal, application of a mechanical stress would produce
plastic deformation of the crystal
magnetic Dipoles in the crystal
electric polarization in the crystal
shift in the Fermi level

⇒ If the op-amp in figure has a unity gain frequency of 1 MHz, the cut off frequenc
100 kHz
1 MHz
10 MHz
90 MHz

⇒ Thermal noise is independent of
temperature
bandwidth
centre frequency
Boltzmann constant

⇒ A linear time-invariant, causal continuous time system has a rational transfer function with simple poles at s = - 2 and s = - 4, and one simple zero at s = - 1. A unit step u(t) is applied at the input of the system. At steady state, the output has constant value of 1. The impulse response of this system is
[exp (- 2t) + exp (-4t)] u(t)
[-4 exp (- 2t) + 12 exp (-4t) - exp (-t)] u(t)
[-4 exp (- 2t) + 12 exp (-4t)] u(t)
[-0.5 exp (- 2t) + 1.5 exp (-4t)] u(t)

⇒ For exponential function e^-at the Laplace transform 1/(s - a)
TRUE
FALSE

⇒ The Boolean function/implemented in the figure using two I/P multiplexer
ABC + ABC
ABC + AB C
ABC + ABC
ABC + AB C

⇒ A series RLC circuit has Q = 5. A voltage of 10 V rms is applied to it. At resonance, the voltage across C is
10 V rms
10 V peak
50 V rms
50 V peak

⇒ In figure, capacitor is used to develop pulses of short duration and large duty cycle across R₂ when switch is closed. Which of the following combinations is best sui
R₁ and R₂ large but C small
R₁ and R₂ small but C large
R₁ and C large and R₂ small
R₂ and C large but R₁ small

⇒ PA radar means
Phased Array radar
Pulsed Array radar
Pulse Amplitude radar
None of the above

⇒ The characteristic impedance of loss less transmission line is
L/R
L/C
1/LC
C/L

⇒

Assertion (A): It is not desirable to drive a transistor into hard saturation in high speed switching circuits.

Reason (R): It may not be possible to bring it back to cutoff state, if it is driven into hard saturation.

Both A and R are individually true and R is the correct explanation of A
Both A and R are individually true but R is not the correct explanation of A
A is true but R is false
A is false but R is true

⇒ If there is phase error in the carrier signal for the detection of SSB signals, then
the output gets reduced, but a phase distortion results
the output is not reduced, but a phase distortion results
the output is not reduced, and also no distortion
the output is reduced, no phase distortion

⇒ In Weston synchronoscope the fixed coils are connected across
bus bars
incoming alternator
lamp
either (a) or (b)

⇒ Which of the following finds application in pocket calculators?
TTL
CMOS
ECL
Both (a) and (c)

⇒ In the case of the circuit shown in the figure V_io = 10 mV dc maximum, the maximum possible output offset voltage V_oo caused by the input offset voltage V_io with respect to groun
60 mV dc
110 mV dc
130 mV dc
150 mV dc