Question is ⇒ In a Communication system, noise is most likely to affect the signal., Options are ⇒ (A) at the transmitter, (B) In the channel, (C) in Information source, (D) at the destination, (E) , Leave your comments or Download question paper.

Question is ⇒ In a Communication system, noise is most likely to affect the signal., Options are ⇒ (A) at the transmitter, (B) In the channel, (C) in Information source, (D) at the destination, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	In a Communication system, noise is most likely to affect the signal.
A.	at the transmitter [Wrong Answer]
B.	In the channel [Correct Answer]
C.	in Information source [Wrong Answer]
D.	at the destination [Wrong Answer]
View Answer 4 -2 Explanation:- Answer : B 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 :

⇒ For a good conducting medium the intrinsic impedance is
σωμ ∠p/2
ωμ /σ ∠45°
ωμ/σ ∠p/2
ωμ/σ ∠0°

⇒ A dynamometer wattmeter can be used for
dc only
ac only
dc and 50 Hz ac
dc and high frequency ac

⇒ A conductor is said to be perfect if it has __________ conductivity
finite
infinite
unity
zero

⇒

Assertion (A): In a BJT, the base region is very thick.

Reason (R): In p-n-p transistor most of holes given off by emitter diffuse through the base.

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

⇒ For real and odd signals, the Fourier series coefficient a_n is
purely imaginary
purely real and even
purely imaginary and odd
purely real and odd

⇒ The number of electrons in motion at the instant of positive peak of a symmetrical ac wave is the same as that at the instant of negative peak.
TRUE
FALSE

⇒ In synchronous detection of an AM signal
Carrier is completely suppressed
Both side hands are suppressed
Only one side band and part of carrier is suppressed
One side band and full carrier is suppressed

⇒ The number of stator field windings in an ac tachometer are
1
2
3
4

⇒ Fill in the suitable word in the blanks is the following questions. The electron in the outermost orbit is called __________ electron.
valence
covalent
acceptor
donor

⇒ A class A chopper has an input voltage of 200 V. T_on = 1.5 ms and T_off = 4.5 ms. The duty cycle, average output voltage and ripple factor respectively are
0.5, 100 V and 1
0.25, 50 V and 3
0.25, 50 V and 1
0.5, 100 V and 3

⇒ Which of the following is invalid integer variable name in Fortran?
IAEG
I 124
AILG
MI AC

⇒ The addition of a zero to the open loop transfer function
pulls the root locus to the left and makes the system more stable
pulls the root locus to the right and makes the system less stable
either (a) or (b)
neither (a) nor (b)

⇒ A Read/Write memory chip has a capacity of 64 k bytes. Assuming separate data and address line and availability of chip enable signal, what is the minimum number of pins required in the IC chip?
28
26
24
22

⇒ The direction in a Yagi Uda antenna is longer than the radiating element.
TRUE
FALSE

⇒

Assertion (A): Light triggering is very suitable for HVDC transmission.

Reason (R): Light triggering has the advantage of complete electrical isolation of gate circuit.

Both A and R are correct and R is correct explanation of A
Both A and R correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct

⇒ A sine wave is passed through an amplifier which severely limits it symmetrically. If then passes to a second amplifier which is narrow band and tuned to the frequency of the original sine wave. What will be the output wave from this second amplifier?
A square wave of the same frequency as that of the original sine wave
A square wave of double the frequency of that of original sine wave
A sine wave of constant amplitude at the frequency of the original sine wave
A sine wave of constant amplitude at double frequency of the original sine wave

⇒ When the gate terminal of MOSFET is positive, it is said to operate in
depletion mode
conduction mode
enhancement mode
none of the above

⇒ Read the following statements about address space in microprocessors

An address space is a set of all possible addresses which can be generated by a microprocessor.
Each address in the address space allows a designer to provide at least one memory or I/O location in the system.
Two types of address spaces are memory and I/O address space.
Some micro processors have only one type of address space.

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

⇒ In a platinum RTD, the change in resistance for a temperature rise of 50° C is about
0.02
0.1
0.2
0.4

⇒ Photoconductive devices uses
metallic conductors
good quality insulators
semiconductors
either (a) or (c)

⇒ In a 3 phase full wave regulator feeding a star connected resistance load the input voltage is 400 V line to line. The firing angle is 160°. The line to line output voltage would be
400 V
about 100 V
about 20 V
zero

⇒ A system is stable if ROC
include the unit circle
exclude the unit circle
lies on Circle
entire plane

⇒ Laplace transform method enables us to find the response in
steady state
transient state
both steady and transient state
transient state provided forcing functions do not exist

⇒ Choose the function f(t), - ∞ < t < + ∞, for which a Fourier series cannot be defined
3 sin (25t)
4 cos (20t + 3) + 2 sin (10t)
exp - | t | sin 25 t
1

⇒ Zener breakdown occurs
due to rapture of covalent band
mostly in germanium junctions
in lightly doped junctions
due to thermally generated minority carriers

⇒ Speeds of sound and radio waves are equal.
TRUE
FALSE

⇒ In a series RLC circuit, the value of resistance for critical damping is
L/C
(L/C)^0.5
1/LC
2/L/C

⇒ Which of the following draws minimum power from source?
PMMC
Electronic voltmeter
Electrostatic voltmeter
Moving iron voltmeter

⇒ Magnetic amplifier is used for
voltage amplification
power amplification
current amplification
frequency amplification

⇒ In a JFET V_DS exceeds the rated value. Then it operates in
active region
ohmic region
cut off region
either cut off or active region