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Q1. | Match the following:
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A. | A-4, B-3, C-2, D-1 [Wrong Answer] | ||||||||||||||||||||

B. | A-1, B-2, C-3, D-4 [Wrong Answer] | ||||||||||||||||||||

C. | A-3, B-4, C-2, D-1 [Correct Answer] | ||||||||||||||||||||

D. | A-4, B-3, C-1, D-2 [Wrong Answer] | ||||||||||||||||||||

View Answer
Explanation:-
Answer : CDiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒

**Assertion (A):** A quarter wave transformer is used to match a resistive load to a transmission line.

**Reason (R):** A quarter wave transformer is a transmission line of quarter wave length.

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

A is wrong but R is correct

⇒ In a transistor which of the following region is very lightly doped and is very thin?

Emitter

Base

Collector

None of the above

⇒ In which

*n*type device does

*p*substrate extend upto silicon dioxide layer?

JFET

Depletion type MOSFET

Enhancement type MOSFET

Both (b) and (c)

⇒ In a three variable K map four adjacent cells give

single variable term

two variable term

three variable term

either (a) or (b)

⇒ An ac network has a power factor of 0.8 leading if the applied wave is of fundamental frequency. If the applied wave contains third and fifth harmonics, the overall power factor will be

0.8 leading

less than 0.8 leading

more than 0.8 leading

0.8 leading or more

⇒ Negative feedback reduces noise originating at the amplifier input.

TRUE

FALSE

⇒ An AM wave is given by

*s*(

*t*)

_{AM}= 20 (1 + 0.5 cos 10

^{3}

*t*+ 0.3 cos 10

^{4}

*t*cos 10

^{6}

*t*) the modulation index of the envelope is

0.5

0.58

0.3

0.8

⇒ The Clapp oscillator shown in figure will operat

4.6 kHz

46 kHz

460 kHz

4600 kHz

⇒ When number of quantization levels are two; then the average transmission power in NRZ polar signaling is __________ that of NRZ unipolar signaling

42737

42739

42743

none of these

⇒ For a MOS capacitor fabricated on a P-type semiconductor, strong inversion occurs when

surface potential is equal to Fermi potential

surface Potential is greater than Fermi potential

surface potential is -

*ve*and equal to Fermi potential in magnitude

surface potential is +

*ve*and equal to twice the Fermi potential

⇒ If A = 3 +

*j*1 and B = 4 +

*j*3, A + B =

7 ∠45°

10 ∠45°

8.062 ∠29.7°

8.062 ∠73°

⇒ A control system is as shown in given figure The maximum value of gain K for which the system is stable

more than 5

equal to 5

less than 1

less than 5

⇒ In classical analogue, torque is analogous to

current

voltage

charge

voltage gradient

⇒ In equally tampered scale, frequency of each tone equals the frequency of lower adjacent tone multiplied by

(2)

^{1/7}

(2)

^{1/12}

(2)

^{1/6}

(2)

^{1/5}

⇒ Which camera tube has highest dark current?

Plumbicon

Vidicon

Saticon

GCD imager

⇒ Which of the following is not a legal subscript?

J + 2

JA - 4

-3

3

^{*}IA - 2

⇒ The number of FF required for a divide by 12 circuit is

16

12

8

4

⇒ Companding is used in PCM to

reduce bandwidth

increasing S/N ratio

get almost uniform S/N ratio

increase bandwidth

⇒ The number of leads in an SCR are :

2

3

4

5

⇒ What will be the maximum conversion time in 6 bit dual slope A/D converter uses a reference of -6v and a 1 MHz clock. It uses a fixed count of 40 (101000).

108 sec

63 μ sec

40 sec

80 μ sec

⇒ An astable multivibrator circuit using IC 555 timer is shown below. Assume that the circuit is oscillating stea

3 V to 5 V

3 V to 6 V

3.6 V to 6 V

3.6 V to 5 V

⇒ A system with input

*x*[

*n*] and output

*y*[

*n*] is given as

*y*[

*n*] = (sin 5/6 p

*n*)

*x*(

*n*) The system is

linear, stable and invertible

non-linear, stable and non-invertible

linear stable, non invertible

linear, unstable, invertible

⇒ For signal diodes the PIV rating is usually in the range

1 V to 10V

10 V to 30V

30 V to 150V

150 V to 400V

⇒ The simplified logic expression for the circuit of the given figur

Y = A

Y = AB

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⇒ 2's complement of a given 3 or more bit number of non-zero magnitude is the same as the original number if all bits except

MSB are zero

LSB are zero

MSB are 1

LSB are 1

⇒ A transistor amplifier is operating in class A mode. If a transformer is connected for impedance matching, the efficiency will

increase

decrease

not be affected

increase or decrease

⇒ In following figure, what will be R

_{1}and R

_{2}for maximum symmetrical swing if V

_{CSat}≈ 0. Given that R

_{E}= 200 Ω, R

_{C}= 400 Ω, V

_{CC}= 20 V, β

6 k

3 k, 6 k

9.9 k, 2.4 k

2.4 k, 9.9 k

⇒ In an SSB transmitter one is most likely to find

class C audio amplifier

tuned modulator

class B RF amplifier

class AB power amplifier

⇒ Which statement is true for an ac circuit?

Active power is always less than apparent power

Active power cannot be more than apparent power

Active power is always more than reactive power

Active power cannot be more than reactive power

⇒ Silicon and germanium atoms combine orderly into array of atoms located in repetitive geometric pattern. This pattern is called

crystal

covalent bond

molecule

valence bond