Question is ⇒ A magic tee is to be used as CW duplexer. Then port 1, port 2, port 3 (E arm), port 4 (H arm) respectively should be connected to, Options are ⇒ (A) matched load, antenna, receiver and CW transmitter, (B) CW transmitter, antenna, receiver and matched load, (C) CW transmitter, receiver, antenna and matched load, (D) CW transmitter, matched load, receiver and antenna, (E) , Leave your comments or Download question paper.

Question is ⇒ A magic tee is to be used as CW duplexer. Then port 1, port 2, port 3 (E arm), port 4 (H arm) respectively should be connected to, Options are ⇒ (A) matched load, antenna, receiver and CW transmitter, (B) CW transmitter, antenna, receiver and matched load, (C) CW transmitter, receiver, antenna and matched load, (D) CW transmitter, matched load, receiver and antenna, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	A magic tee is to be used as CW duplexer. Then port 1, port 2, port 3 (E arm), port 4 (H arm) respectively should be connected to
A.	matched load, antenna, receiver and CW transmitter [Correct Answer]
B.	CW transmitter, antenna, receiver and matched load [Wrong Answer]
C.	CW transmitter, receiver, antenna and matched load [Wrong Answer]
D.	CW transmitter, matched load, receiver and antenna [Wrong Answer]
View Answer 3 -2 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 :

⇒ Determine the correctness or otherwise of the following Assertion [a] and the Reason
Both [a] and [r] are true and [r] is the correct reason for [a]
Both [a] and [r] are true but [r] is not the correct reason for [a]
Both [a] and [r] are false
Both [a] and [r] are true

⇒

Assertion (A): In computers the data is stored in hexadecimal form

Reason (R): Hexadecimal representation is short as compared to binary representation.

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

⇒ The number of noise sources in a BJT are
3
2
1
4

⇒ In voltage amplifiers, the load resistance
should be a small as possible
should be as large as possible
must be equal to output impedance
must be half of output impedance

⇒

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): A fixed bias BJT circuit exhibits better performance as compared to a self bias BJT circuit.

Reason (R): A fixed bias BJT circuit used less components as compared to a self bias BJT circuit.

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

⇒

Assertion (A): If the duty cycle of chopper is low the current would not become discontinuous

Reason (R): If the time constant L/R of the load in chopper is low the current may become discontinuous.

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 bandwidth of DSB suppressed carrier modulation system when the modulating frequency varies between 500 Hz and 5 kHz is
555 kHz
505 kHz
500 kHz
9 kHz

⇒ The noise margin of a TTL gate is about
0.2 V
0.4 V
0.6 V
0.8 V

⇒ Which one of the following statements regarding compandor is FALSE?
It compresses the higher-amplitude parts of a signal before modulation and expands them back to normal again after demodulation.
It gives preferential treatment to the weaker parts of the signal
For weaker signals it gives a poor ratio of signal strength to quantizing error
Weaker signals, traverse more quantum steps than they would do otherwise and so quantizing error is reduced.

⇒ The deflection of a DArsonval galvanometer is measured through a mirror and scale. The mirror is 1 m away from the light source. The mirror is mounted on, the moving system. If mirror rotates through 0.2 rad the displacement on the scale is
0.2 m
0.4 m
0.1 m
0.05 m

⇒ The first and second subscripts in models of circular waveguides depict
the number of full sine wave variations in circumference in direction and Bessel function variations in radial direction respectively
the Bessel function variations in radial direction and the number of full sine wave variations in circumference direction respectively
the Bessel function variations in circumference direction and number of full sine wave variations in radial direction respectively
none of the above

⇒ Consider the following

The first letter of a Java variable is lower case.
Each successive word in Java variable begins with a capital letter.
All other letters are lower case.
A Java variable can have a digit as first character.

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

⇒ A current of 1 A in the coil of an iron cored electromagnet cause a flux density of 0.2.T. If the current is 2 A, B=
0.2 T
0.4 T
0.4 T or less
0.4 T or more

⇒

Match the following:

	List I (Operator in C)		List II (Priority of Operation)
A.	!	1.	1
B.	< >	2.	2
C.	∗	3.	3
D.	=	4.	4

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

⇒ In the circuit shown in figure, I_s = 4A, V_s = 4, the voltage V is give
6 V
8 V
4 V
2 V

⇒ For any test point s on the real axis, the sum of angular contributions of the complex conjugate poles is
90°
180°
270°
360°

⇒ A good dielectric should have
low losses
good heat conductivity
high intrinsic strength
all of the above

⇒ The response to sinusoidal excitation can be found by
settings s = jω in the network function
settings s = - jω in the network function
taking inverse transform of network function
none of the above

⇒ Which of the following modulation is analog in nature?
PCM
DPCM
DM
PDM

⇒ A signal is x + f(t) where x is constant and f(t) is a power signal with zero mean value. The power of the signal is
x²
x² + f²(t)
more than x² + f²(t)
less than x² + f²(t)

⇒

Assertion (A): A p-n junction is used as rectifier.

Reason (R): A p-n junction has low resistance in forward direction and high resistance in reverse direction.

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

⇒ A 750 A circuit uses thyristor of current rating 175 A. If derating is 25%, the number of thyristors in parallel is
3
4
6
10

⇒ The greatest negative number which can be stored is 8 bit computer using 2's complement arithmetic is
-256
-128
-255
-127

⇒ A 3 phase balanced supply feeds 3 phase unbalanced load. Power supplied to the load can be measured by using

2 wattmeter
one wattmeter
3 wattmeter

Which of the above statements is correct?
1 and 2
1 and 3
2 and 3
3 alone

⇒ In following figure find V_GG by assuming gate current is negligible for the p-channel JFET. (if I_DQ = - 6 mA, R_S = 0, V_DD = -18 V, R_D = 2 kΩ, I_DSS = - 10 mA, I_PO = - 3 V)
0.67 V
6.7 V
7 V
0.3 V

⇒ In a low power factor wattmeter, the resistance of pressure coil is more than in ordinary wattmeter.
TRUE
FALSE

⇒ A plot of modulation index vs carrier amplitude yields a
horizontal line
vertical line
parabola
hyperbola

⇒ In TV signals colour burst is used
to maintain colour sequence
to ensure I and Q phase correctly
to synchronise colours
for interlacing of horizontal lines

⇒ At room temperature, the current in the, intrinsic semiconductor is due to
holes
electrons
ions
holes and electrons