Question is ⇒ MF is generally used for, Options are ⇒ (A) telegraphy, (B) radio and television links, (C) satellite communication, (D) broadcasting, navigation, (E) , Leave your comments or Download question paper.

Question is ⇒ MF is generally used for, Options are ⇒ (A) telegraphy, (B) radio and television links, (C) satellite communication, (D) broadcasting, navigation, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	MF is generally used for
A.	telegraphy [Wrong Answer]
B.	radio and television links [Wrong Answer]
C.	satellite communication [Wrong Answer]
D.	broadcasting, navigation [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 :

⇒ Fields are said to be circularly polarised if their magnitudes are
equal and they are in phase
equal but they differ in phase by ± 90°
unequal and differ in phase by ± 90°
unequal but are in phase

⇒ In all pure metals, temperature coefficient of resistance is positive.
TRUE
FALSE

⇒ Consider the following statements about an array in Pascal

An array has a fixed predetermined number of components.
Any component of an array can be accessed using an index.
An array variable name refers to a group of quantities by a single name.
When array variables are used an appropriate declaration is required.

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

⇒ The circuit in the given figur
half adder
full adder
half subtractor
full subtractor

⇒ The drift velocity of electrons is
very small as compared to speed of light
equal to speed of light
almost equal to speed of light
half the speed of light

⇒

Match the following:

	List I (Bits operator in C)		List II (Meaning)
A.	˜	1.	Bitwise XOR
B.	&	2.	Bitwise AND
C.	\|	3.	Bitwise OR
D.	U	4.	One's complement

A-1, B-2, C-3, D-4
A-4, B-3, C-2, D-1
A-2, B-3, C-1, D-4
A-4, B-2, C-3, D-1

⇒

Assertion (A): Snubber circuit has an RC series circuit in parallel with SCR

Reason (R): Voltage across a capacitor can not change instantaneously.

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

⇒ The total number of pins in 8085 are
20
30
40
50

⇒

Assertion (A): A 3 phase wattmeter consists of two wattmeters mounted in one case.

Reason (R): Power measurement in a 3 phase circuit can be conveniently done by two wattmeter method.

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

⇒ Due to which of the following reasons, the ground wave eventually disappears, as one moves away from the transmitter?
Tilting
Loss of line-of-eight conditions
Interference from the sky wave
Maximum single hop distance limitation

⇒ The phase difference (jω - p₁ )
phasor directed from p₁ to jω
phasor directed from origin to p₁
phasor directed from origin to jω point
phasor directed from jω to p₁

⇒ Typical size of digital IC is about
1″ x 1″
2″ x 2″
0.1″ x 0.1″
0.001″ x 0.001″

⇒ The Kirchoff's laws fail in which of the following circuits?
Linear circuits
Non-linear circuits
Lumped parameters circuits
Distributed parameters circuits

⇒ The voltage at which Avalanche occurs is known as
cut in voltage
barrier voltage
breakdown voltage
depletion voltage

⇒ Which of the following is a disadvantage of Vestigial Sideband (VSB) system?
Low video frequencies are attenuated
Bandwidth is conserved resulting in a saving of 2 MHz per channel over DSB system
It results in a power boost of two video frequencies
It possess the advantages of both DSB and SSB system

⇒ A signal having uniformly distributed amplitude in the interval (- V to + V) is to be encoded using PCM with uniform quantization. The signal to quantization noise ratio is determined by
dynamic range of signal
sampling rate
number of quantizing levels
power spectrum of signal

⇒ The chemical properties of atoms are determined by all the electrons and their configuration.
TRUE
FALSE

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

⇒ A 4 bit synchronous counter has flip flops having propagation delay of 50 ns each and AND gates having propagation delay of 20 ns each. The maximum frequency of clock pulses can be
20 MHz
50 MHz
14.3 MHz
5 MHz

⇒ If e is the charge of an electron, R is the radius of its orbit and ω is the angular velocity of electron, the magnetic dipole moment μ_m of the orbit is |μ_m| = eωR².
TRUE
FALSE

⇒ In TV system in India IF video and IF audio frequencies are
33.4 and 28.4 MHz respectively
38.9 and 33.4 MHz respectively
43.8 and 38.9 MHz respectively
33.4 and 38.9 MHz respectively

⇒

Assertion (A): 2's complement arithmetic is preferred in digital computers

Reason (R): The hardware required to obtain 2's complement is simple.

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

⇒ For a given line voltage, four heating coils will produce maximum heat when connected
all in parallel
all in series
with two parallel pairs in series
one pair in parallel with the other two in series

⇒ A λ/4 long high frequency transmission line is terminated into one impedance Z_R. If Z₀ be the characteristic impedance of the line, then input impedance Z_in is
Z_oZ_R
Z²_R/Z_o
Z²₀/Z_R
Infinity

⇒ Which statement is false as regards holes
Holes exist in conductors as well as semiconductors
Holes constitute positive charges
Holes exist only in semiconductors
Holes and electrons recombine

⇒ In a series RLC circuit, the current at resonance is I₀ the total energy stored in the circuit at resonance is
LI₀²
2 LI₀²
2 LI₀²
0.5 LI²

⇒ The main drawbacks of EEPROM are
low density
high cost
both low density and high cost
none of the above

⇒ In commercial FM Broadcasting, A radio station transmitting the signal at 98.3 MHz, it is
carrier frequency
modulation frequency
message frequency
channel frequency

⇒

Assertion (A): De sauty's bridge is suitable only for pure capacitor.

Reason (R): Capacitors are mostly perfect.

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

⇒ For the network shown below, the Thevenin voltage and R_TH is equal to _______
0 V, 58.82 Ω
0 V, 96.774 Ω
0 V, 3 KΩ
None of these