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Q1. | Narrowband FM signal can be considered to be equal to |

A. | PM [Wrong Answer] |

B. | AM [Correct Answer] |

C. | SSB [Wrong Answer] |

D. | DSB [Wrong Answer] |

View Answer
Explanation:-
Answer : BDiscuss 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 :**

⇒

Match the following:

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

A. | Darlington amplifier | 1. | A circuit using pnp and npn transistors |

B. | CB amplifier | 2. | A CS amplifier driving a CG amplifier |

C. | Cascade amplifier | 3. | A circuit with over-all voltage gain close to 1 and very large input impedance |

D. | Complementary symmetry amplifier | 4. | A circuit with low input impedance |

A-1, B-2, C-3, D-4

A-2, B-1, C-3, D-4

A-3, B-4, C-2, D-1

A-4, B-3, C-2, D-1

⇒ Which of the following is not a valid real constant in C?

1.2

*e*2.0

-2.3

*e*- 2

-2.3

*E*2

-2.3

*e*2

⇒

Match the following:

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

A. | D Layer | 1. | 110 km |

B. | E layer | 2. | 10 km |

C. | F layer | 3. | 60 km |

D. | Troposphere | 4. | 350 km |

A-3, B-1, C-4, D-2

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

A-3, B-2, C-1, D-4

A-4, B-3, C-1, D-2

⇒ In the graphical analysis of an amplifier circuit, the slope of dc load line depends on

load resistance only

collector supply voltage only

both load resistance and collector supply voltage

none of the above

⇒ A transmission line has a characteristic impedance of 50 Ω and a resistance of 0.1 Ω/m, if the line is distortion less, the attenuation constant (in Np/m) is

500

5

0.014

0.002

⇒

`LPEPSI`

3

9

13

23

⇒ The compensator of the given figure

lag compensator

lead compensator

lag-lead compensator

none of the above

⇒ A UPS contains

rectifier

inverter

either rectifier or inverter

both rectifier and inverter

⇒ Which of the following statements defines a full adder?

It adds two binary digits and produces their SUM and CARRY

It adds three inputs (two binary digits and a carry) and produces their SUM and CARRY

It has two inputs and two outputs

None of the above

⇒ Which one of the following theorem can be conveniently used to calculate the power consumed by the 10 Ω resistor in the network shown in the above fig

Thevenin's theorem

Maximum power transfer theorem

Millman's theorem

Superposition theorem

⇒ In a single phase full wave ac regulator the firing angles during both half cycles are equal.

TRUE

FALSE

⇒ The minimum sampling frequency in sample/sec. required to reconstruct the following signal from its samples wuthout distor

2 x 10^{3}

4 x 10^{3}

6 x 10^{3}

8 x 10^{3}

⇒ Which one of the following statement is correct?

Satellite spacing is not affected by the bandwidth of the transmitting earth station

Beamwidth is independent of antenna size and frequency band used

The width of a beam in space is inversely proportional to the width of the transmitting antenna

Use of high-frequency bands permits less number of satellites to share the orbit

⇒ The current passing through a resistance of 100 ± 0.2% Ω is 2 ± 0.5% A. The limiting error in computation of power will be

± 0.7%

± 0.9%

± 1.2%

± 0.3%

⇒ If H(*s*) is positive real, 1/H(*s*)

is positive real

is not positive real

may or may not be positive real

must possess some other properties also if it is to be positive real

⇒ The constant magnitude of G(*s*) plane are

a family of straight horizontal lines

a family of straight inclined lines with positive slope

a family of straight inclined lines with negative slope

a family of circles

⇒ In a modified series inverter

the maximum output frequency is less than frequency of damped oscillations

the output frequency can be even higher than the frequency of damped oscillations

the output frequency cannot exceed the frequency of damped oscillations

any of the above

⇒ Schering bridge operates at a high voltage of about 10 kV.

TRUE

FALSE

⇒ The units for intrinsic strength of dielectric are

kV

kV/m

A

A/m

⇒ A series RLC circuit has a resonant frequency of 1000 Hz. The maximum voltage across C is likely to occur at a frequency of about

1000 Hz

2000 Hz

1025 Hz

975 Hz

⇒ One limitation of constant *k* filters is that Z_{0} is not constant in the pass band.

TRUE

FALSE

⇒ A longwave AM broadcast transmitter needs

very small carrier power

very large carrier power

small carrier power

large carrier power

⇒ The resolution of a 12-bit D/A converter using a binary ladder with + 10V as the full scale output will be

2.44 mV

3.50 mV

4.32 mV

5.12 mV

⇒ State transition table and state transition diagram form part of design steps for

combinational circuits

sequential circuits

delay circuits

all of the above

⇒ 'Rotate instruction' in microprocessor belongs to

data transfer group

arithmetic group

logic group

branch group

⇒ In an oscillator the total phase shift around the loop must be

180°

90°

270°

0°

⇒ Colour code of carbon resistors has only two bands.

TRUE

FALSE

⇒ Match the following:

List I (Transducer) List II (Operation) A. Bourden tube 1. Fluid flow to resistance change B. Hot wire ammeter 2. Velocity to pressure C. Hydrometer 3. Pressure to displacement D. Pitot tube 4. Specific gravity to displacement

A-1, B-3, C-2, D-4

A-3, B-1, C-2, D-4

A-3, B-1, C-4, D-2

A-4, B-2, C-3, D-1

⇒ **Assertion (A):** Two equal and opposite travelling waves result in a standing wave.

**Reason (R):** The ratio of maximum to minimum value of a standing wave is called SWR.

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

⇒ The circuit in figure, the switched on at *t* = 0. After a long time the current through 5 Ω resistanc

0.0416666666666667

0.166666666666667

0.416666666666667

0

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