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Q1. | How many number of branches the root loci of the equation s(s + 2)(s + 3) + K(s + 2) = 0 have? |

A. | Zero [Wrong Answer] |

B. | One [Wrong Answer] |

C. | Two [Wrong Answer] |

D. | Three [Correct Answer] |

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

⇒ Piezoelectric effect can be used to measure

force

strain

acceleration

all of the above

⇒ Magnetic flux density has the dimensions

MI

^{-1}T

^{-2}

M

^{-1}I

^{-2}T

^{-2}

ML

^{-3}T

^{-2}

MI

^{-1}T

^{-3}

⇒ The Thevenin Resistance of the circui

94/7 kΩ

54/7 kΩ

7/54 kΩ

0

⇒ Consider the transmission line of length 37.5 cm, which is terminated into zero resistance. This line is being exited by a source of 1 GHz which has an internal impedance of 50 Ω. What is the input impedance of the line as seen by the source?

50 Ω

Zero Ω

100 Ω

Infinite Ω

⇒ An I/O processor controls the flow of information between

cache memory and I/O devices

main memory and I/O devices

two I/O devices

cache and main memory

⇒

Match the following:

List I (Comm.services) | List II (Bandwidth) | ||
---|---|---|---|

A. | AM broadcast | 1. | 10 kHz |

B. | Telephone | 2. | 4 kHz |

C. | wide-band FM | 3. | 200 kHz |

D. | TV | 4. | 7 MHz |

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

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

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

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

⇒ If V

_{a0}, V

_{a1}, V

_{a2}are sequence components of V

_{a}and I

_{a0}, I

_{a1}, I

_{a2}are sequence components of I

_{a}, then total 3 phase power P is given by

P = V

_{a0}I

_{a0}+ V

_{a1}I

_{a1}+ V

_{a2}I

_{a2}

P = V

_{a0}I

_{a0}+ V

_{a1}I

_{a1}+ V

_{a2}I

_{a2}

^{*}

P = 3(V

_{a0}I

_{a0}+ V

_{a1}I

_{a1}+ V

_{a2}I

_{a2})

P = 3(V

_{a0}I

_{a0}+ V

_{a1}I

_{a1}+ V

_{a2}I

_{a2}

^{*})

⇒ In a simple on-off controller with differential gap, the magnitude of differential gap determines

the level of accuracy

the life of controller

both (a) and (b)

neither (a) nor (b)

⇒ For an N-point FFT algorithm with N = 2

^{m}which one of the following statements is TRUE?

It is not possible to construct a signal flow graph with both input and output in normal order

The number of butterflies in the

*m*

^{th}stage is N/m

In-place computation requires storage of only 2N node data

Computation of a butterfly requires only one complex multiplication

⇒ For a hollow waveguide, the axial current must necessarily be

combination of conduction and displacement current

conduction current only

time varying conduction current and displacement current

displacement current only

⇒

Match the following:

List I (Instrument) | List II (Measured quantity) | ||
---|---|---|---|

A. | Hot wire | 1. | only voltage |

B. | PMMC | 2. | phase |

C. | Electrostatic | 3. | true RMS value |

D. | Lock in Amplifier | 4. | dc value |

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

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

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

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

⇒ The carrier frequency will be if L = 50 µH and C = 1 nF.

512

612 kHz

712 kHz

812 kHz

⇒ In a 4 bit counter the output of 3 JK FFs from MSB downward are connected to the NAND gate whose O/P is connected to CLR

it is a MOD-14 counter

it is MOD-13 counter

it is divided by 13 counter

it is divide by 10 counter

⇒ For a junction FET in the pinch off region, as the drain voltage is increased, the drain current

becomes zero

abruptly decrease

abruptly increases

remains constant

⇒ Microwave signals follow the curvature of the earth and the phenomenon is known as

tropospheric scatter

duct propagation

Faraday effect

none of the above

⇒ When a coil consisting of single turn rotates at a uniform speed in a magnetic field, the induced e.m.f. is

changing

reversing

steady

alternating

⇒ When cells are connected in series, emfs of all cells must be equal.

TRUE

FALSE

⇒ A reactance function

has a pole at origin

has a zero at origin

may have a pole or zero at origin

has a pole or zero at origin and a pole or zero at infinity

⇒ A computer program is used to read N and compute N !. IF N = 6, the result will be

6

12

720

1040

⇒ In a common emitter circuit all voltages are measured with respect to

base

emitter

collector

base or collector

⇒ For measuring mutual inductance we can use

Anderson bridge

Maxwell's bridge

Heaviside bridge

Either (a) or (b)

⇒ The symbol in figure is

UJT

PUT

SCS

SBS

⇒ HVDC systems are preferable for only long distances.

TRUE

FALSE

⇒ Which of the following does not apply to Yagi-Uda antenna

High gain

Reasonably good bandwidth

Folded dipole

Parasitic elements

⇒ Current chopping leads to

over voltage

over current

both over voltage and over current

either over voltage or over current

⇒ For a bipolar transistor, avalanche multiplication factor depends on __________ .

V

_{CE}

V

_{CB}

V

_{BE}

none of these

⇒ An increase of reverse voltage decreases the junction capacitance.

TRUE

FALSE

⇒ Which of the following is best excited from a waveguide?

Discone

Helical

Biconical

Horn

⇒ If the open-loop transfer function is a ratio of a numerator polynomial of degree '

*m*' and a denominator polynomial of degree '

*n*', then the integer (

*n*-

*m*) represents the number of:

breakaway points

unstable poles

separate root loci

asymptotes

⇒ Read the following statements about Java

- It is well suited to design software which works in conjunction with internet.
- It is cross platform language.
- Java is close to programming language C, C ++ etc.
- It is an object oriented.

All

1, 2 and 3 only

1, 2 and 4 only

2, 3, 4 only