Question is ⇒ For frequencies upto 1650 kHz __________ antenna is used, Options are ⇒ (A) yagi, (B) grounded, (C) turnstile, (D) marconi, (E) , Leave your comments or Download question paper.

Question is ⇒ For frequencies upto 1650 kHz __________ antenna is used, Options are ⇒ (A) yagi, (B) grounded, (C) turnstile, (D) marconi, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	For frequencies upto 1650 kHz __________ antenna is used
A.	yagi [Correct Answer]
B.	grounded [Wrong Answer]
C.	turnstile [Wrong Answer]
D.	marconi [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 :

⇒ Which device has one input and many outputs?
Multiplexer
Demultiplexer
Counter
Flip flop

⇒ In figure, the power dissipated in 4 resistance is P₁ and power associated with 3 A source is P₂.
P₁ = P₂
P₁ < P₂
P₁ > P₂
P₁ may be equal or less than P₂

⇒ Zero bias works only with
D MOSFETs
E MOSFETs
both D and E MOSFETs
neither D nor E MOSFETs

⇒ A periodic rectangular signal, x(t) has the waveform shown in the given figure. Frequency of the fifth harmonic of its spectrum is _______
200 Hz
250 Hz
400 Hz
1250 Hz

⇒ If input ac is 10 V_rms, then maximum voltage that will appear across the diode of a half wave rectifier with a capacitor I/P filter will be
10 V
14 V
20 V
28 V

⇒ A phasor is
a line representing the magnitude and direction of an alternating quantity
a line which represents the magnitude and phase of an alternating quantity
an instrument used for measuring phases of an unbalanced 3-phase load
a coloured tag or band for distinguishing between different phases of a 3-phase supply

⇒ Which of the following statement number is not valid in Basic
12
521
662512
99999

⇒ Gain stability in an oscillator can bs achieved by
providing negative feedback
providing positive feedback
using low Q circuits
controlling the gain

⇒ Sound wave travels as
longitudinal waves
transverse waves
both longitudinal and transverse waves
either longitudinal or transverse wave

⇒ Which mode has the lowest cut off frequency in circular wave guides?
TE₀₁
TE₁₁
TE₂₀
TE₂₁

⇒

Assertion (A): Feedback control systems offer more accurate control than open loop systems.

Reason (R): The feedback path establishes a link for comparison of input and output and subsequent error correction.

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 number of inputs and outputs in a full adder are
2 and 1
2 and 2
3 and 3
3 and 2

⇒ Karnaugh map is used to
minimise the number of flip flops in a digital circuit
minimise the number of gates only in a digital circuit
minimise the number of gates and fan in a digital circuit
design gates

⇒ Consider the following stateme
1 and 2 only
3 and 4 only
1, 2 and 3
2, 3 and 4

⇒ Out of multiplexer and demultiplexer, which has select inputs?
Multiplexer only
Demultiplexer only
Both multiplexer and demultiplexer
None

⇒ The relation between thermal conductivity K (W/m/°C), heat flow density Q (watt/m²) and dT/dx (°C per metre) is
Q = K(dT/dx)
Q = - K(dT/dx)
K = Q(dT/dx)
dT/dx = - QK

⇒ The number of free electrons in acceptor atom is
1
2
3
4

⇒ Which of the following material has nearly zero temperature-coefficient of resistance?
Carbon
Porcelain
Copper
Manganin

⇒ The upper end of the d.c. load line is called the __________ point and the lower end is the __________ point.
cut off, saturation
saturation, active
saturation, cut off
active saturation

⇒ What is the numerical aperture an optical fiber when critical angle is 30°?
0.5
0.704
0.866
0.2

⇒ In household energy meters the flux of series magnet is in phase with current but the flux of shunt magnet lags the voltage by 88°. The reading of energy meters
will be correct
will have a negative error
will have a positive error
may have positive or negative error

⇒ A dynamometer wattmeter is connected in ac circuit. The measured power is
rms power
average power
peak power
instantaneous power

⇒ D/A converters are generally
weighted resistor network
binary ladder network
either (a) or (b)
neither (a) nor (b)

⇒ Neutralization is used in RF amplifiers to
stop oscillation
increase bandwidth
improve selectivity
all of the above

⇒ A TV receiver is 40 cm wide and 30 cm high. The EHT supply required is about
2kV
20 kV
53 kV
10 W

⇒ Which one of the following is correct?
Coding reduces the noise in the signal
Coding deliberately introduces redundancy into messages
Coding increases the information rate
Coding increases the channel bandwidth

⇒ The binary sum of 111010₂ and 11011₂ is
1010101₂
1011001₂
1011101₂
1111111₂

⇒ The turn ratio of a transformer is 20:1, if a load of 10Ω is connected across the secondary, what will be the effective resistance seen looking into the Primary?
2 kΩ
4 kΩ
8 kΩ
32 kΩ

⇒ The forms of IF statements in FORTRAN 77 are called
logical IF and Block IF
logical IF, block IF and arithmetic IF
logic IF, block IF, arithmetic IF and negate IF
logical IF and arithmetic IF

⇒ Which of the following are true for relative dielectric constant?

It is dimensionless.
It is equal to 1 for vacuum.
It is equal to 1 for all substances.

1 and 2 only
2 and 3 only
1 and 3 only
1, 2 and 3