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Q1. | In a travelling wave tube distributed interaction between an electron beam and a travelling wave takes place |

A. | TRUE [Correct Answer] |

B. | FALSE [Wrong Answer] |

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Explanation:-
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**Also Read Similar Questions Below :**

⇒

- P(
*s*) =*s*^{4}+*s*^{3}+ 2*s*^{2}+ 4*s*+ 3 - Q(
*s*) =*s*^{4}+ 2*s*^{3}+*s*

*s*) and Q(

*s*) polynomials?

Both P(

*s*) and Q(

*s*) are Hurwitz

Both P(

*s*) and Q(

*s*) are non-Hurwitz

P(

*s*) is Hurwitz but Q(

*s*) is non-Hurwitz

P(

*s*) is non-Hurwitz but Q(

*s*) is Hurwitz

⇒ If VSWR is infinite, the transmission line is terminated in

short circuit

complex impedance

open circuit

either (a) or (c)

⇒ In Bode plots, frequency is plotted on log scale.

TRUE

FALSE

⇒ Which of the following noise sources is different from others?

Cosmic

Solar

Atmospheric

Galactic

⇒ For the transport lag G(

*j*ω) =

*e*

^{-jωT}, the magnitude is always equal to

0

1

10

0.5

⇒ In a class C operation

V

_{CC}is much larger than V

_{CE(sat)}

V

_{CC}is much smaller than V

_{CE(sat)}

V

_{CC}and V

_{CE(sat)}are nearly equal

none of the above

⇒ Commercial ECL gates use two ground lines and one negative supply to

reduce power consumption

increase fan out

reduce loading effect

eliminate the effect of power line glitches on the biasing circuit

⇒ Figure shows a NAND latch used as a switch debouncer. With the switch in STOP position. Q will be equal to

0

1

CLK

none of these

⇒ N circles for a = a

_{1}, and a = a

_{1}± 180°

*n*(where

*n*= 1, 2, 3, ....) are the same.

TRUE

FALSE

⇒ If

*f*(

*t*)↔ F(

*j*ω), and

*f*(

*t*) is real, then F(-

*j*ω)

*F*(

*j*ω)

*F**(

*j*↔)

*F**(-

*j*ω)

none of these

⇒ When we use

`RRC`

instruction once in 8085, the number ismultiplied by 2

divided by 2

multiplied by 4

divided by 4

⇒ A balun transformer gives an impedance transformation of

0.167361111111111

0.0840277777777778

0.0444444444444444

0.0430555555555556

⇒ Hysteresis curve is associated with motion of domain walls.

TRUE

FALSE

⇒ The Boolean expression for the shaded area in the Venn diagra

X + Y + Z

XY + Z + X YZ

X Y Z + XY

X + Y + Z

⇒ The electron and hole concentration in a intrinsic semiconductor are

*n*

_{i}and P

_{i}respectively when doped with a P type material, these change to

*n*and P, respectively. Then

*n*+ P =

*n*

_{i}+ P

_{i}

*n*+

*n*

_{i}= P + P

_{i}

*n*P

_{i}=

*n*

_{i}P

*n*

_{P}=

*n*

_{i}P

_{i}

⇒ Assuming that

*k*is an integer what would the result of following expression

8

7

7.5

zero

⇒ Resistivity of semiconductors is around 100 Ω-m.

TRUE

FALSE

⇒ Data from a satellite is received in serial form (1 bit after another). If this data is coming at a 5 MHz rate and if the clock frequency is 5 MHz how long will it take to serially load a word in a 32-bit shift register?

1.6ms

3.2ms

6.4ms

12.8ms

⇒ An ideal rectifier should have

100% efficiency, zero ripple factor, zero harmonic factor and unity displacement factor

100% efficiency, zero tipple factor, zero harmonic factor and zero displacement factor

100% efficiency, zero ripple factor, unity harmonic factor and unity displacement factor

100% efficiency, unity ripple factor, zero harmonic factor and unity displacement factor

⇒ For the DAC in the given figure V

_{O10 V5 V4 V8 V}

⇒ In laboratory experiment the output from reflex klystron is moderated by square wave because

it is easy to generate a square wave

crystal diode operates in square law region of

*i*-

*v*characteristics

it prevents frequency modulation

detector circuit is less complicated

⇒ A three terminal monolithic IC regulator can be used as

an a adjustable output voltage regulator alone

an adjustable output voltage regulator & a current regulator

a current regulator & a power switch

a current regulator alone

⇒ The value of susceptibility in case of vacuum is taken as

zero

0.5

unity

infinity

⇒ The orientation polarization of a polyatomic gas is inversely proportional to absolute temperature.

TRUE

FALSE

⇒ In an amplifier the stray capacitances assume impedance at low frequencies

TRUE

FALSE

⇒ The synthesis of minimum function was suggested by

O'Brune

R. Richards

Bott and Duffin

none of the above

⇒ Complex poles give rise to oscillatory terms in the response.

TRUE

FALSE

⇒ ALE stands for

Address Latch Enable

Accumulator Latch Enter

Address Latch Enter

Accumulator Latch Enable

⇒ Which one is time invariant system?

*y*[

*n*] =

*x*[2

*n*]

*y*[

*n*] =

*x*[

*n*]

*x*[

*n*- 1]

*y*[

*n*] =

*x*[

*n*/2]

all

⇒ End fire coupler is formed

when two equal radiators are operated in phase quadrature at a distance of λ/4 apart

when two equal radiators are operated in parallel at a distance of λ/4 apart

when two equal radiators are operated in phase quadrature at a distance of λ/2 apart

none of the above