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Q1. | Fourier transform is defined for |

A. | periodic [Wrong Answer] |

B. | non-periodic [Correct Answer] |

C. | finite duration [Wrong Answer] |

D. | all [Wrong Answer] |

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

⇒ For the single rectangular pulse of the given fi

TRUE

FALSE

⇒ A 0.5 μF capacitor is connected across a 10 V battery. After a long time, the circuit current and voltage across capacitor will be

0.5 A and 0 V

0 A and 10 V

20 A and 5 V

0.05 A and 5 V

⇒ The probability giving distribution of electrons over a range of allowed energy levels is known as

Maxwell's Distribution

Fermi-Dirac Distribution

Richardson Dushman Distribution

none of the above

⇒ If each branch of a Delta circuit has impedance 3 Z then each branch of the equivalent Y circuit has impedance.

Z/3

3 Z

3/3 Z

Z/3

⇒ In one of the codes for transfer of numbers the code for the succeeding number differs from that of the number only in the change of a single digit. The code is

ASCII

Excess 3 CODE

Gray CODE

none of these

⇒ RS latch can be built with

NOR gates

NAND gates

NOR or NAND gates

none of the above

⇒ An electron in a homogeneous magnetic field and having velocity perpendicular to the direction of field moves

perpendicular to the field

along the field

along a straight line inclined at 45° to field

in a circular path

⇒ With which decoder it is possible to obtain many code conversions?

2 line to 4 line

3 line to 8 line

not possible with any decoder

4 line to 16 line decoder

⇒ The scale factor for half wave and full wave rectifier is __________ respectively.

1.11, 1.414

1.11, 1.57

1.57, 1.11

1.414, 1.11

⇒ In a pneumatic bellows

the input surface, output surface and side walls are corrugated

the input surface and output surface are flat but the side walls are corrugated

the input surface and side walls are flat but the output surface is corrugated

the input surface and output surface are corrugated but the side walls are flat

⇒ Consider the following statements as regards DPSK and DEPSK

- DPSK demodulator requires a device which operates at carrier frequency and provides a delay of bit time T
_{b} - In DPSK, synchronous demodulation recovers the signal
*b*(*t*) and the decoding of*b*(*t*) to generate*d*(*t*) is done at base band - In both DPSK and DEPSK errors always occur in pairs

1 and 3

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2 and 3

1, 2 and 3

⇒ Out of modes TE

_{20}and TE

_{30}of propagation of electromagnetic engery

both have the same cutoff frequency

TE

_{20}has lower cut off frequency as compared to TE

_{30}

TE

_{30}has lower cutoff frequency as compared to TE

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either (a) or (c)

⇒ In a JFET the width of channel is controlled by

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drain current

source current

all of the above

⇒ A 3 phase ac regulator uses

3 thyristors

6 thyristors

9 thyristors

12 thyristors

⇒ Schmitt trigger is used for wave shaping.

TRUE

FALSE

⇒ A network contains only independent current source and resistors. If the values of all resistors are doubled, the value of the node voltage

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will remain unchange

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cannot be determined unless the circuit configuration and the values of the resistors are known

⇒ A two branch parallel tuned circuit has 100 Ω resistance and 0.1 H inductance in one branch and 10

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10 Ω

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1000 Ω

10000 Ω

⇒ Two impedances 10 -

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5 -

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10 +

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⇒ For a type 1 system and unit parabolic input, the steady state error is

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∞

1

1/K

_{v}⇒ In a flip-flop with a NAND latch, a low

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*S*produces

active condition

inactive condition

race condition

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⇒

**Assertion (A):** Divide-64 counter is a Mod-64 counter and divides the input frequency by 64

**Reason (R):** A Mod 64 counter can be obtained by cascading Mod 16 and Mod 4 counters.

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

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A is false, R is true

⇒ The input impedance for folded dipole antenna (two half dipole) is

73

*n*

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377

*n*

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⇒ The AM, PM, and TV broadcast frequencies are

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much lower than microwave range

much higher than microwave range

either (a) or (c)

⇒ Which of the following is not between F

_{2}layer and D layer?

E layer

F

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⇒ Which of the following operation are performed on linear queues?

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- Enqueue operation
- Dequeue operation
- Testing a linear queue for overflow.

1, 2 and 3

2, 3 and 4

1, 3 and 4

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⇒ Consider the following stateme

1 only

1 and 2

2 and 3

2 and 4

⇒ A signum function is

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*t*greater than zero

zero for

*t*less than zero

unity for

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2∪(

*t*) - 1

⇒ In metals the thermal conductivity

*K*and electrical conductivity σ are related as (K/σT) = L, L is known as

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Lorentz number

Lanevin function

Larmor number

⇒ For high frequencies a capacitor like

an open circuit

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none of the above

⇒ Yettrium-iron garnet (Y

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_{5}O

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dc

50 Hz ac

ac of a few K Hz

ac of a few hundred MHz