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Q1. | The phase angle curve of G(jω) H(jω) is drawn by adding the phase angles of individual factors. |

A. | TRUE [Correct Answer] |

B. | FALSE [Wrong Answer] |

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

⇒

**Assertion (A):** A graph is planar if it has a dual.

**Reason (R):** The dual of a graph can be found by window dot method.

Both A and R are true and R is correct explanation of A

Both A and R are true and R is not the correct explanation of A

A is true but R is false

A is false but R is true

⇒ A bridge rectifier circuit has a dc load current of 10 mA and a filter capacitance of 1000 μF. The peak to peak ripple voltage is

0.01 V

0.05 V

0.1 V

0.5 V

⇒ A circuit is replaced by its Thevenin's equivalent to find current through a certain branch. If V

_{TH}= 10 V and R

_{TH}= 20 Ω, the current through the branch

will always be 0.5 A

will always be less than 0.5 A

will always be equal to or less than 0.5 A

may be 0.5 A or more or less

⇒ Modulated carrier power in FM

increases with modulating signal power

decreases with modulating signal power

is independent of the modulating signal power

none

⇒ Which of the following is the disadvantage of PDM and PPM?

It requires pulses of larger widths

More samples are needed per second

More powerful transmitter is required

None of the above

⇒ Which of the following components is essential for a voltage multiplier circuit?

Resistor

Inductor

Capacitor

Both (a) and (c)

⇒ Which one is a linear system?

*y*[

*n*] =

*x*[

*n*] x

*x*[

*n*- 1]

*y*[

*n*] =

*x*[

*n*] +

*x*[

*n*- 10]

*y*[

*n*] =

*x*

^{2}[

*n*]

(a) and (c)

⇒ Consider the following stateme

1 only

1 and 2

2 and 3

2 and 4

⇒ In figure, the tree branches are

*bdf*. The fundamental loops inc

*abc*,

*def*,

*bdea*

*cea*,

*bdea*,

*abc*

*cdb*,

*def*,

*bfa*

*abde*,

*def*,

*cdb*

⇒ The generic microprocessor contains a zero and a carry flag. These are located on

interrupt control

status register

either (a) or (b)

none of the above

⇒ In the circuit of figure, the switch is closed at

*t*= 0 with

*i*

_{L}(0) = 0 and V

_{C}(0) = 0. In the steady state n

_{c}equ

100

*v*

0

*v*

∞

- 100

*v*

⇒ Number of fundamental cut-sets of any graph will be

same as the number of twigs

same as the number of tree branches

same as the number of nodes

equal to one

⇒ A single phase fully controlled bridge rectifier is fed by a source having inductance. The output voltage during overlap period is

V

_{m}

0.5 V

_{m}

zero

0.5 V

_{m}- voltage drop across inductance

⇒ If the number of atoms per unit volume of a monoatomic gas changes, the dielectric constant still remains constant.

TRUE

FALSE

⇒ In an amplifier circuit the emitter is at ac ground potential in a

CB circuit

CC circuit

CE circuit

both CB and CE circuit

⇒ Decimal -90 equals __________ in 8 bit 2s complement

1000 1000

1010 0110

1100 1100

0101 0101

⇒ Measurement of an unknown voltage with a dc potentiometer loses its advantage of open circuit measurement when

the primary circuit battery is changed

standardization has to be done again to compensate for drifts

voltage is larger than range of the potentiometer

range reduction by a factor of 10 is employed

⇒ When a thyristor is conducting, the voltage drop across it is about

1 V

10 V

100 V

0.1 V

⇒ The peak factor is the ratio of

peak and rms values

peak and average values

rms and average values

none of the above

⇒ In a circular waveguide TE

_{21}mode has lowest cutoff frequency

TRUE

FALSE

⇒ Which of the following is a circularly polarized antenna?

Horn

Dipole

Helical

Pyramidal

⇒ The number of stator field windings in an ac tachometer are

1

2

3

4

⇒ Which of the following statement is false?

Television signals are propagated as ground waves

Surface waves can propagate on piezoelectric substrates

The skip distance is the maximum distance upto which ionospheric reflection is possible

Tropospheric scatter propagation is always subjects to fading

⇒ Which of the following couplings may cause unwanted clamping?

Resistive

Inductive

Capacitive

Both (a) or (b)

⇒

Match the following:

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

A. | Interface | 1. | A measure of rate of data transmission |

B. | A bit | 2. | A binary digit |

C. | Band speed | 3. | The common boundary between various sections and subsections |

4. | A/D converter |

A-3, B-2, C-1

A-3, B-1, C-2

A-2, B-4, C-1

A-4, B-2, C-3

⇒ A loss less line of characteristic impedance Z

_{0}is terminated in pure reactance of -

*j*

*Z*

_{0}value. VSWR is

10

2

1

infinity

⇒ A practical Parallel resonant circuit has a coil in Parallel with a 0.14 μf capacitor. The coil has an inductance of 1 mH and a resistance of 10 ohms. The Q of the circuit is

1000

100

10

1

⇒ If R(t) is autocorrelation of a waveform

*v*(

*t*) and R(0) is autocorrelation for t = 0, then

R(0) > R(t)

R(0) ≥ R(t)

R(0) < R(t)

R(0) ≤ R(t)

⇒ A m

*P*contains 2 MHz crystal. The time taken to complete instructions with 1000 cycles is

2

*ms*

1

*ms*

2

*nx*

1

*ns*

⇒ Kirchoff's laws are applicable to

steady state conditions only

transient conditions only

both steady state and transient condition

both steady state and transient condition but with some constraints