Question is ⇒ In a coaxial line, Options are ⇒ (A) the characteristic impedance is less than that of two wire line, (B) the wave velocity is less than that of two wire line, (C) both (a) and (b), (D) neither (a) nor (b), (E) , Leave your comments or Download question paper.

Question is ⇒ In a coaxial line, Options are ⇒ (A) the characteristic impedance is less than that of two wire line, (B) the wave velocity is less than that of two wire line, (C) both (a) and (b), (D) neither (a) nor (b), (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	In a coaxial line
A.	the characteristic impedance is less than that of two wire line [Wrong Answer]
B.	the wave velocity is less than that of two wire line [Wrong Answer]
C.	both (a) and (b) [Correct Answer]
D.	neither (a) nor (b) [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : C 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 pure tone at 1000 Hz has a dB level of 40 dB. If the required dB level is 100, the number of such tones is
2.5
60
10⁴
10⁶

⇒ In a megger the controlling torque is provided by
spring
gravity
coil
eddy current

⇒ Three analog signals, having bandwidths 1200 Hz, 600 Hz, 600 Hz are sampled at their Nyquist rates, encoded with 12 bit words, and time division multiplexed. The bit rate for the multiplexed signal is
115.2 kbps
28.8 kbps
57.6 kbps
38.4 kbps

⇒ The first contribution to logic was made by
George Boole
Copernicus
Aristotle
Shannon

⇒ An amplifier has an input resistance of 10 kΩ and the noise voltage is 10 μV. If two such resistances of 10 kΩ each are connected in series at the input, the total noise voltage is about
20 μV
5μV
14.14 μV
10 μV

⇒ Three point tracking can be achieved with
gang condenser
variable selectivity
paddar capacitor
any of the above

⇒

Assertion (A): Silicon is preferred over germanium in manufacture of semiconductor devices.

Reason (R): Forbidden gap in silicon is more than that in germanium.

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

⇒ Out of the three transforms viz. Z-transform, Laplace transform and Fourier transform
all three are used in continuous time domain
all three are used in both continuous time domain and discrete time domain
Z transform is used in continuous time domain while Laplace and Fourier transforms are used in discrete time domain
Z transform is used is discrete time domain while Laplace and Fourier transforms are used in continuous time domain

⇒ An AM signal is detected using an envelope detector, the carrier frequency and modulating signal frequency are 1 MHz and 2 kHz respectively. An appropriate value for the time constant of the envelope detector is
500 μ sec
20 μ sec
0.2 μ sec
1 μ sec

⇒ The stray capacitance between the last stage and the first stage of an oscillator may cause
unwanted low frequency oscillations
unwanted high frequency oscillations
unwanted oscillations at low and high frequencies
large feedback

⇒ What is the characteristic of a good control system?
Sensitive to parameter variation
Insensitive to input command
Neither sensitive to parameter variation nor sensitive to input commands
Insensitive to parameter variation but sensitive to input commands

⇒ Which control action can never be used alone?
Proportional
Derivative
Integral
Both (b) and (c)

⇒ The function f(x - v_ot) represent which of the following?
A stationary wave
A wave motion in forward direction
A wave motion in reverse direction
None of the above

⇒ For a second order system with 0 < ξ < 1, the angle which poles make with negative real axis is
sin^-1 ξ
cos^-1 ξ
tan^-1 ξ
cot^-1 ξ

⇒ Which of the following conversion is incorrect?
2048.0625 = 100000000000.0001₂
100000011.1001₂ = 131.5625₁₀
101101₂ = 45₈
Hexadecimal B6C₇ = 46791₁₀

⇒ The contents of F register in 8085 are 01010001. This means
S = 0, Z = 1, AC = 1, P = 0 and CY=1
S = 1, Z = 1, AC = 1, P = 0 and CY=1
S = 1, Z = 0, AC = 1, P = 0 and CY=1
S = 1, Z = 0, AC = 0, P = 0 and CY=1

⇒ Which configuration is suitable for impedance matching?
CB
CE
CC
CB and CE

⇒ Magnetic flux can be measured by
capacitive pick up
inductive pick up
resistive pick up
hall effect pick up

⇒ A digital voltmeter has a 4 1/2 digit display. The 1 V range can measure voltage up to
0.9999 V
1.9999 V
0.199 V
9.999 V

⇒

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

⇒

Match the following:

	List I		List II
A.	Output of signal generator	1.	Modulated
B.	Error signal from a synchro	2.	Digital
C.	Output of a JK flip flop	3.	Analog
D.	Signal received by radar	4.	Stoichastic

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

⇒ An input voltage V(t) = 10 2 cos (t + 10°) + 10 3 cos (2t + 10°)V is applied to a series combination of resistance R = 1 kΩ inductance L = 1H. The resulting steady-state current i(t) in ampere is
10 cos (t + 55°) + 10 cos (2t + 10° tan^-12)
10 cos (t + 55°) + 103/2 cos (2t + 55°)
10 cos (t - 35) + 10 cos (2t + 10° - tan^-12)
10 cos (t - 35) + 103/2 cos (2t + 35°)

⇒

Match the following:

	List I		List II
A.	Direct addressing	1.	MOV A, M
B.	Register addressing	2.	MOV C, A
C.	Register indirect addressing	3.	LDA 7
D.	Immediate addressing	4.	STA FFC

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

⇒ Common emitter transistor has
high current and high voltage gain
low current gain and low voltage gain
high current gain and low voltage gain
low current and voltage gain

⇒ The resonant frequency of a series resonant circuit is
arithmetic mean of half power frequencies
independent of inductance of the circuit
independent of capacitance of the circuit
geometric mean of half power frequencies

⇒ Peak to peak value of a sine wave is equal to twice the peak value
TRUE
FALSE

⇒ Generally a servomotor operates at
high torque and high speed
low torque and low speed
low torque and high speed
high torque and low speed

⇒ Pick the odd-one out
Hartley Oscillator
Colpitt oscillator
Clapp oscillator
Weinbridge oscillator

⇒ In a zener diode
the forward current is very high
sharp breakdown occurs at a certain reverse voltage
the ratio v-i can be negative
there are two p-n junctions

⇒ Read the following statements about Java

It is well suited to design software which works in conjunction with internet.
It is cross platform language.
Java is close to programming language C, C ++ etc.
It is an object oriented.

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