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Q1. | For the K map of the given figure the simplified Boolean expressio |

A. | AC + A B [Correct Answer] |

B. | A BC + A B C + A B C + AB C [Wrong Answer] |

C. | AC + A B + AC [Wrong Answer] |

D. | A C + A B + AB [Wrong Answer] |

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

⇒ Logic hardware is available only in NAND and NOR.

TRUE

FALSE

⇒ Consider the following statements as regards IF in radio receivers

- If IF is too high, poor selectivity and poor adjacent channel rejection could result
- If IF is high, tracking difficulties increase
- A very low IF makes selectivity too sharp
- As IF is decreased, image frequency rejection becomes better

1, 2, 3, 4

1, 2, 3

2, 3, 4

1, 3, 4

⇒ The sum of two sine waves of different frequencies is a sine wave.

TRUE

FALSE

⇒ The input to an op-amp integrating amplifier is a constant voltage. The output will be

a constant voltage

a sawtooth wave

a ramp

ac voltage

⇒ Noise can be measured by

D.C. voltmeter

A.C. voltmeter

either of the above

none of the above

⇒

**Assertion (A):** When a function *f*(*t*) is represented as exponential Fourier series, the set of complex coefficients F* _{n}* is called frequency spectrum of

*f*(

*t*)

**Reason (R):** Frequency spectrum is also called line spectrum.

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 true, R is false

A is false, R is true

⇒ The radiation pattern of a parabola antenna is

omnidirectional

a figure of directional

highly directional

none of the above

⇒ In a composite filter terminating half sections are used for impedance matching.

TRUE

FALSE

⇒ Which amplifier will be preferred for highest gain?

Darlington's pair

Single stage amplifier

Cascade amplifier

Depends on the circuitry

⇒ In a conductor which of the following relations hold good?

∇ x D = r

∇ . D = r

∇ x D = 0

∇ . D = 0

⇒ If operator '

*a*' = 1 ∠120° then (1 -

*a*) =

3

3 ∠ - 30°

3 ∠ + 30°

3 ∠60°

⇒ Which of the following factor does NOT contribute to the drift of a geostationary satellite from its stationary position in space?

Pressure of solar radiations

Gravitational changes due to Sun and Moon

Oblateness of the Earth

Weight of the satellite

⇒ Which of the following is the abnormal phenomena observed in the ionosphere?

Communication link interference

Sun spot cycle

Fading and whistlers

Tides and winds

⇒ What is the decimal equivalent of the binary number shown in fourth row?

79

97

117

127

⇒ Effective Q of the equivalent electrical circuit of quartz crystal is of the order of

200

2000

20000

200000

⇒ If quadratic equation

*x*

^{2}- 1000

*x*+ 25 = 0 is solved using floating point arithmetic with 4 digit mantissa, the roots are

.1000 E 4 and .1000 E 4 respectively

.0000 E 4 and .0000 E 4 respectively

.1000 E 4 and .0000 E 4 respectively

None of the above

⇒ Consider the following statements

- A total of about 1 million bytes can be directly accessed by 8086 microprocessor.
- The 8086 has thirteen 16 bit registers.
- The 8086 has eight flags.
- Compared to 8086, the 80286 provides a higher degree of memory protection.

1, 2, 3, 4 are correct

1, 3, 4 are correct

1, 2, 4 are correct

1, 2, 3 are correct

⇒ A cavity resonator is

a hollow metallic enclosure

a hollow enclosure having magnetic material as its walls

a hollow enclosure having dielectric material as its walls

either (b) or (c)

⇒ For a 4096 x 8 EPROM, the number of address lines is

14

12

10

8

⇒ The circuit shown in the figure, with R = 1/3 Ω, L = 1/4H, C = 3F has input voltage

*v*(

*t*) = sin2

*t*. The resulting current

*i*(

*t*

5 sin (2

*t*+ 53.1°)

5 sin (2

*t*- 53.1°)

25 sin (2

*t*+ 53.1°)

25 sin (2

*t*- 53.1°)

⇒ When a

*p*-

*n*junction is forward biased, the current remains zero till the applied voltage overcomes the barrier potential.

TRUE

FALSE

⇒ The circuit diagram shown in the figure consists of transistors

parallel connection

cascade connection

darlington connection

series connection

⇒ The expression

`A`^{2} + B^{2} - 3 AB

when written is Pascal should be written as`A * A + B * B - 3 A * B`

`A * A + B * B - 3.0 A * B `

`A * A + B * B - 3.0 * A * B`

`A * A + B * A - 3 * A * B `

⇒ Computers 'Basic input output system' is generally stored in RAM chips.

TRUE

FALSE

⇒ For the time domain response shown in figure the

lies on negative real axis

lies on positive real axis

lies on imaginary axis

is complex or imaginary

⇒ Which is correct for a transfer function?

The poles and zero must be complex

If the poles and zeros are complex or imaginary, they must be conjugate

If the poles and zeros are complex they must be simple

If a zero is imaginary, it must be simple

⇒ A hexadecimal odometer displays F52F. The next reading will be

E 52 F

E 52 E

E 53 F

F 53 O

⇒ The voltage in a circuit follows the law

*v*= 100 sin ω

*t*if the frequency is 25 Hz, how long will it take for the voltage to rise to 50 volts?

1/150

*s*

1/100

*s*

1/300

*s*

1/600

*s*

⇒ AM-SC stands for

Amplitude Modulated-Suppressed Carrier

Amplitude Modulated-Single Carrier

Amplitude Modulated-Synchronous Carrier

Amplitude Modulated-Self Carrier

⇒ For a BJT, avalanche multiplication factor depends on

V

_{CE}

V

_{CB}

V

_{BE}

none