Users Also Read

MCQ's Search Engine

Electrical Engineering

Mechanical Engineering

Civil Engineering

Automobile Engineering

Chemical Engineering

Computer Engineering

Electronics Engineering

Medical Science Engg

Q1. | Which factor determines whether the medium is free space, lossless dielectric, lossy dielectric or good conductor? |

A. | Attenuation constant [Wrong Answer] |

B. | Constitutive parameters (σ, μ, ε) [Wrong Answer] |

C. | Loss tangent [Correct Answer] |

D. | Reflection coefficient [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 :**

⇒ A transponder is a satellite equipment which

receives a signal from Earth station and amplifies

changes the frequency of the received signal

retransmits the received signal

does all of the above-mentioned functions

⇒ An 8 bit wide 4 word sequential memory has

Eight 4 bit shift registers

Eight 8 bit shift registers

Four 8 bit shift registers

Foui 4 bit shift registers

⇒ In a class C operation V

_{CC}= 40 V and V

_{CE(sat)}= 0.4 V. The efficiency is

0.9

0.495

0.01

0.005

⇒ Which of the following is true?

SOP is a two level logic

POS is a two level logic

Both SOP and POS are two level logic

Hybrid function is two level logic

⇒ In a 3 phase bridge inverter with 180° mode of operation the numbers of thyristors conducting at one time are

1

2

3

4

⇒ The main disadvantage of a JFET is

low gain-bandwidth product

high noise level

high cost

low gain

⇒ The Boolean expression Y = (A + B + AB) C then

*Y*will be equal to

AC

BC

C

none

⇒ Harmonic distortion in CB amplifier may be least when the load resistance is

negligible

very low

very high

infinite

⇒ The resistance of voltmeter affects the accuracy of measurement in loss of charge method.

TRUE

FALSE

⇒ In an underdamped RLC series circuit, the natural frequency is ω

_{n}. The frequency of damped oscillations is

ω

_{n}

less than ω

_{n}

more than ω

_{n}

2 ω

_{n}

⇒ One advantage of using polar plot is that it depicts the frequency response characteristics over the entire frequency.

TRUE

FALSE

⇒ A loss less transmission line is terminated in a load which reflects a part of the incident power. The measured VSWR is 2. The percentage of the power that is reflected back is

57.73

33.33

0.11

11.11

⇒ For TE or TM modes of propagation in bounded media, the phase velocity is

independent of frequency

is a linear function of frequency

is a non-linear function of frequency

can be frequency dependent or frequency independent on the source

⇒ The relation between plate current and plate voltage of a vacuum diode is called

Richardson Dushman equation

Langmuir Child law

Ohm's law

Boltzmann's law

⇒ Two identical hybrid tees are joined as shown in the given figure. If 16 mW power is fed into port 1, the power output at ports 2 , 3, 1', 2', 3' respectivel

8, 4, 2, 2, 0 mW

0, 8, 4, 4, 0 mW

0, 8, 2, 2, mW

8, 2, 4, 2, 0 mW

⇒ A transmitted using AM has in modulated carrier output power of 10 KW and can be modulated to a maximum depth of 90% by a sinusoidal modulating voltage without causing overloading. Find the value to which an modulated carrier power can be increased without resulting in overloading if the maximum permitted modulating index is 40%

14 KW

12.96 KW

26.96 KW

2.96 KW

⇒ The number of layers in a Shockley diode are

2

3

4

2 or 3

⇒ In 8085, F register has 8 bits.

TRUE

FALSE

⇒ For the K map of the given figure the simplified Boolean expressio

A + BC

A + BC

A + B C

A + B C

⇒ The current through common emitter resistor of a differential amplifier is called

differential current

emitter current

ground current

tail current

⇒ The binary number 101100.110 in octal number will be

152.6

154.6

145.6

174.6

⇒ The five flags in 8085 are designated as

Z, CY, S, P and AC

D, Z, S, P, AC

Z, C, S, P, AC

Z, CY, S, D, AC

⇒ In a CE amplifier the collector resistance is short circuited. The ac output voltage will

increases

remains the same

increases or decreases

decreases

⇒ Z

_{0}= (Z

_{oc}Z

_{sc})

^{0.5}

TRUE

FALSE

⇒ For a system to be designated as hi-fi, the signal to noise ratio should be at least

25 dB

50 dB

75 dB

100 dB

⇒ A XOR gate has inputs A and B and output Y. Then the output equation is

Y = AB

Y = AB + A B

Y = A B + A B

Y = A B + A B

⇒ The circuit in the given figur

positive logic OR gate

negative logic OR gate

negative logic AND gate

positive logic AND gate

⇒ A parity detector can detect

single error only

single error or odd number of errors

two errors

single or two errors

⇒ In which one of the following types of analog to digital converts the conversion time is practically independent of the amplitude of the analog signal?

The dual slope integrating type

Successive approximation type

Counter ramp type

Tracking type

⇒ In memory mapped I/O means that

an input or output device is treated by the microprocessor as one memory location

input or output devices are treated as distinct

an address on the address bus may refer either to a memory location or to an I/O device

none of the above