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Q1. | The equivalent of the block diagram in figure is give |

A. | Figure (a) [Wrong Answer] |

B. | Figure (b) [Wrong Answer] |

C. | Figure (c) [Wrong Answer] |

D. | Figure (d) [Correct Answer] |

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

⇒ Stepper motors find applications in

X-Y plotters

numerically controlled machining equipment

printers

all of the above

⇒ If a function has only cosine terms, it must satisfy the equation

*f*(

*t*) = -

*f*(

*t*)

*f*(-

*t*) =

*f*(

*t*)

*f*(-

*t*) = -

*f*(

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none of the above

⇒ Which of the following rotors are used in two phase ac servomotor?

- Solid iron rotor
- Squirrel cage rotor
- Drag cup rotor

1, 2, 3

1, 2

2, 3

1, 3

⇒ In a N-P-N transistor, when emitter junction is forward biased and collector junction is reverse biased, the transistor will operate in

active region

saturation region

cut of region

inverted region

⇒ The signal defined by the equations

*f*(

*t*) = 0 for

*t*< 0,

*f*(

*t*) = E for 0 ≤

*t*≤

*a*and

*f*(

*t*) = 0 for

*t*>

*a*is

a step function

a pulse function

a shifted step function originating at

*t*=

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none of the above

⇒ In a perfect conductor the incident and reflected wave combine to produce

a stronger incident wave

a stronger reflected wave

a standing wave which is not progressing

none of the above

⇒ A short grounded vertical antenna has a length L which is 0.05λ at frequency

*f*. If its radiation resistance at

*f*is R ohms, then its radiation resistance at a frequency 2

*f*will be

R/2Ω

RΩ

2RΩ

4RΩ

⇒ Polarization of a wave is

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direction of magnetic field at some fixed point in space

either (a) or (b)

none of the above

⇒ In satellite communication, frequency modulation is used because satellite channel has

small bandwidth and negligible noise

large bandwidth and severe noise

maximum bandwidth and minimum noise

high modulation index

⇒ In EPROM integrated dose is defined as

UV light intensity x exposure time in seconds

UV light intensity / exposure time in seconds

exposure time in seconds / UV light intensity

none of the above

⇒ The network shown in figur

reciprocal

reciprocal and symmetrical

non-reciprocal

unsymmetrical

⇒ An RC impadence function has a pole at

*s*= 0. The first element in the Foster form of synthesis

is R

may be R and C

is C

is R and C in parallel

⇒ A 6 bit DAC uses binary weighted resistors. If MSB resistor is 20 k ohm, the value of LSB resistor is

20 k ohm

80 k ohm

320 k ohm

640 k ohm

⇒ A 4 bit shift register is initialized to value 1000 for (Q

_{3}, Q

_{2}, Q

_{1}, Q

_{0}). The D input is derived from Q

_{0}, Q

_{2}and Q

_{3}through two XOR gates as shown in figure. The pattern 1000 will appea

3rd pulse

7th pulse

6th pulse

4th pulse

⇒ An ammeter has a resistance of 50 ohms and a shunt of 0.01 Ω. The deflection is θ. If the shunt resistance is increased to 0.02 Ω, the deflection will be.

θ

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⇒ Consider the following:

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- Gain
- Bias stabilization
- Sensitivity
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1, 3 and 5

2, 3 and 4

4 and 5

⇒ A network N is dual of network N if

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both of them have same node equation

mesh equation of one are the node equations of the other

KCL and KVL equations are the same

⇒ If C is thermal capacitance,

*m*is mass of liquid and

*c*is specific heat, then

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*c*=

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C = (

*mc*)

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⇒ In every practical oscillator, the loop gain is slightly larger than unity and the amplitude of the oscillations is limited by the

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magnitude of gain of the amplifier

feedback transmission factor

⇒

Match the following:

List I | List II | ||
---|---|---|---|

A. | Poles and zeros of lie an real axis driving point LC network | 1. | lie an real axis |

B. | Canonic LC network has | 2. | a zero |

C. | The number of Canonic networks for the given driving point function | 3. | minimum number of elements |

D. | The first critical frequency nearest the origin for RL driving point impedance | 4. | four |

5. | minimum number of elements | ||

6. | alternate | ||

7. | either a pole or zero | ||

8. | three |

A-1, B-5, C-8, D-7

A-6, B-5, C-3, D-2

A-1, B-5, C-4, D-2

A-1, B-3, C-4, D-7

⇒ The frequency range for satellite communication is

3 to 30 kHz

300 to 3000 kHz

3000 to 30000 MHz

30000 to 300000 MHz

⇒ In a shift register the data is loaded in one operation but shifted out one bit at a time, The shift register is

serial in-serial out

parallel in-serial out

serial in-parallel out

parallel in-parallel out

⇒ The percentage limiting error in an instrument reading 8.3 V and having guaranteed accuracy of 1% of the full scale reading and range of 0-150 V is

0.0181

0.00181

0.181

0.000018

⇒ A clipper

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removes signal voltages above or below a specified value

both (a) and (b)

either (a) or (b)

⇒ An intrinsic silicon sample has 1 million free electrons at room temperature. As the temperature is increased

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the number of free electrons increases but the number of holes decreases

the number of free electrons and holes increase by the same amount

the number of free electrons and holes increase but not by the same amount

⇒ A power factor meter has

one current and one pressure circuit

one current circuit and two pressure circuits

two current circuits and two pressure circuits

two current circuits and one pressure circuit

⇒ The number of protons in a copper atom are

2

9

11

29

⇒ In a varistor the

*v*-

*i*graph is linear.

TRUE

FALSE

⇒ Which of the following term does not apply to the Yagi-Uda array?

High gain

Folded dipole

Parasitic

Good bandwidth

⇒ In an AM transmitter after the modulation stage, class C amplifier

can be used

cannot be used

may be used, but it has no use

can't be determine to use