Question is ⇒ Which of the following is not true as regards communication receiver?, Options are ⇒ (A) It is exactly same as radio receiver used in households, (B) It can be used, besides communication, for detection in high frequency bridges, (C) It is designed to perform the task of low and high frequency reception better than in household receiver, (D) Its tuning and operation are more complicated than those in household receiver, (E) , Leave your comments or Download question paper.

Question is ⇒ Which of the following is not true as regards communication receiver?, Options are ⇒ (A) It is exactly same as radio receiver used in households, (B) It can be used, besides communication, for detection in high frequency bridges, (C) It is designed to perform the task of low and high frequency reception better than in household receiver, (D) Its tuning and operation are more complicated than those in household receiver, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Which of the following is not true as regards communication receiver?
A.	It is exactly same as radio receiver used in households [Correct Answer]
B.	It can be used, besides communication, for detection in high frequency bridges [Wrong Answer]
C.	It is designed to perform the task of low and high frequency reception better than in household receiver [Wrong Answer]
D.	Its tuning and operation are more complicated than those in household receiver [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : A 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 :

⇒ A 4 bit ripple counter uses flip flops with propagation delay of 50 ns each. The maximum clock frequency which can be used is
5 MHz
10 MHz
20 MHz
25 MHz

⇒ Assuming that k is an integer what would the result of following expression
8
7
7.5
zero

⇒ The antenna current of an AM transmitter is 8 A. When only the carrier is sent, but it increases to 8.93 A. when the carrier is sinusoidally modulated. The percentage modulation is nearly
0.9
0.8
0.75
0.7

⇒ Consider the following statements as regards SAW filter

The centre frequency is determined by the pitch of IDT comb shaped electrodes
The response can be modified shaping the overlap of comb electrodes
The response is maximum when acoustic wave has its wavelength equal to pitch
When a number of identical electrodes are arranged at the same pitch, the frequency characteristics of the filter is expressed by (sin x)/x

Which of the above statements are correct?
1, 2, 3, 4
1, 2, 3 only
1, 2, 4 only
2, 3, 4 only

⇒ Which one of the following gain equations is correct for a MOSFET common-source amplif
A_V = g_m/(1 - R_D)
A_V = g_m/R_D
A_V = g_m/(1 + R_D)
A_V = R_D/g_m

⇒ Carbon steel has a residual flux density of 1 Wb/m².
TRUE
FALSE

⇒ Two ammeters A and B are connected in parallel in a circuit carrying 100 A. Their resistances are 0.8 mΩ. Their readings will be.
55.56 and 44.44 A respectively
44.44 A and 55.56 A respectively
60 A and 40 A respectively
40 A and 60 A respectively

⇒ The current in an RL series circuit is 1 - e^-t amperes. Then di/dt is
1 - e^-t
- e^-t
e^t
e^-2t

⇒ As the number of flip flops are increased, the total propagation delay of
ripple counter increases but that of synchronous counter remains the same
both ripple and synchronous counters increase
both ripple and synchronous counters remain the same
ripple counter remains the same but that of synchronous counter increases

⇒ In magnetic film memory, the memory element consits of
plated wires
superconductive material
nickel iron alloy
doped aluminium

⇒ The function in the given figure can be writte
u(t - 1) sin p ( t - 1) - u(t - 3) sin p (t - 3) + u(t - 4) sin p (t - 4) - u(t - 6) sin p (t - 6)
u(t - 1) sin p ( t - 1) - u(t - 3) sin p (t - 3) + u(t - 4) sin p (t - 4)
u(t - 1) sin p ( t - 1) + u(t - 4) sin p (t - 4)
u(t - 1) sin 2p ( t - 1) + u(t - 4) sin 2p (t - 4)

⇒ 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

⇒ In the two ports network shown in the figure, Z₁₂ and Z₂₁ are, respecti
r_e and βr₀
0 and - βr₀
0 and βr₀
r_e and - βr₀

⇒ Which of the following circuits can be used as parallel-to-series converter?
Digital counter
Decoder
Demultiplexer
Multiplexer

⇒ In Z_RC (s) = 0 at s =∞, the last element in second Foster realization will be
R
C
R and C in series
R and C in parallel

⇒ A sinusoidal current having peak value of 7.07 A is superimposed on dc of 5A. If a hot-wire ammeter is used to measure the combined current in the circuit, it will indicate __________ ampere.
7.07
10
12.07
2.07

⇒ Bandwidth is proportional to speed of response.
TRUE
FALSE

⇒ A two branch parallel tuned circuit has a coil of resistance 100 Ω and inductance 0.005 H in one branch and 10 nF capacitor in the second branch. At resonance frequency is
100 rad/sec
10000 rad/sec
1000 rad/sec
more than 10000 rad/sec

⇒ A 4 bit down counter starts counting from 1111 irrespective of modulus.
TRUE
FALSE

⇒

Assertion (A): The circuit in figure produces repetitive narrow pulses when input is fed with sine or triangular waveform having peak value more than + V

Reason (R): The high gain op-amp produces voltages at two levels. If input is more than + V, the output is + 15 V otherwise the output is - 1
Both A and R are correct and R is correct explanation for A
Both A and R are correct but R is not correct explanation for A
A is correct R is wrong
A is wrong R is correct

⇒

Assertion (A): Microprocesspr 8085 has six 8 bit registers B, C, D, E, H L.

Reason (R): B - C, D - E, H - L may be combined to form register pairs to hold 16 bits data.

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 R is wrong
A is wrong R is correct

⇒ A clock signal driving a 6-bit ring counter has a frequency of 1 MHz. How long is each timing bit high?
1 ms
2 ms
3 ms
6 ms

⇒ Figure shows an RC circuit. The magnitude plot V₂/V_{1will rise exponentially to R₂/(R₁ + R₂) as ω → ∞
will rise linearly to R₂/(R₁ + R₂) as ω → ∞
will decrease to zero as ω → ∞
will rise 1 at ω = 0 and then decrease as ω → ∞}

⇒

Assertion (A): In n-p-n transistor conduction is mainly due to electrons.

Reason (R): In n type materials electrons are majority carriers.

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

⇒ If all other parameters are the same, a capacitor with mica as dielectric has higher capacitance than air capacitor.
TRUE
FALSE

⇒ The application of magnetic field to superconducting material
increases transition temperature
decreases transition temperature
has no effect on transition temperature
may increase or decrease the transition temperature

⇒ Two 2's complement number having sign bits X and Y are added and the sign bit of the result is Z. then, the occurrence of overflow is indicated by the Boolean function.
XYZ
X Y Z
X YZ + XY Z
XY + YZ + ZX

⇒ Consider the following program in Pascal 2
2.6
2.63
26.3

⇒ In 8085 microprocessor, what is the length of A-register?
6 bits
8 bits
12 bits
16 bits

⇒ The function of a choke in a fluorescent lamp is
at the time of starting only
during the working of time but not at starting time
both at the time of starting and during working
none of the above