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Q1. | The logic realized by the circuit shown in figure belo |

A. | F = A - C [Wrong Answer] |

B. | F = A + C [Correct Answer] |

C. | F = B ⊙ C [Wrong Answer] |

D. | F = B ⊕ C [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 :**

⇒ The output data lines of microprocessor and memories are usually tristated because

more than one device can transmit information over the data bus by enabling only one device at a time

more than one device can transmit information over the data bus at the same time

the data lines can be multiplexed for both I/P and O/P

it increases the speed of data transfers over the data bus

⇒ Two voltages are -5 V and -10 V. In positive logic

-5 V is 1 and -10 V is 0

-10 V is 1 and -5 V is 0

-5 V is 1 in some circuits and 0 in others

-10 V is 1 in some circuits and 0 in others

⇒ A tachometer has a sensitivity of 4 V/1000

*rpm*. Express the gain constant of the tachometer in the units volts/(rad/sec).

0.0489

0.0381

2

none of these

⇒ For the current wave

*i*= 10 + 10 sin θ, the rms value is

0.416666666666667

12.247 A

20 A

14.14 A

⇒ In an ordinary thyristor

turn on and turn off times are equal

turn on time is more than turn off time

turn off time is more than turn on time

turn on time may be equal, less than or more than turn off time

⇒ A transmission line has characteristics impedance of (75 +

*j*0.01) Ω and is terminated in a load impedance of (70 +

*j*50) Ω. The transmission coefficient will be

1.70 -

*j*2.97

0.08 +

*j*0.32

1.32 +

*j*1.38

1.08 +

*j*0.32

⇒ Waveform shown in figure is that

FM

PCM

AM-DSB

AM-SSB

⇒ A variable resistance R and capacitive reactance X

_{C}are connected in series. As R is varied, the locus of Z is

a straight line parallel to Y axis in 4th quadrant

a straight line parallel to X axis in 4th quadrant

a straight line parallel to Y axis in second quadrant

a straight line parallel to Y axis in first quadrant

⇒ Which of the following is most likely to be found in an SSB transmitter?

Class A, RF output amplifier

Class B, RF amplifier

Tuned modulator

Class C, audio amplifier

⇒ Three identical coils each having self inductance L are connected in series so that the fluxes of all the three are in the same direction. If mutual inductance between each pair of coils is M, the total inductance of the arrangement is

3 L + 9 M

1.5 L + 3 M

3 L + 3 M

3 L + 6 M

⇒ Which of the following is a valid integer variable in Fortran 77?

KM

K M - 1

DELHI

318

⇒ In the following astable multivibrator circuit, which properties of

*v*

_{0}(

*t*) depends on R

_{2Only the frequencyOnly the amplitudeBoth the amplitudeNeither the amplitude nor the frequency}

⇒ A 4 cm by 3 cm rectangular waveguide with air cavity, is operating at 12 GHz with TE

_{11}mode. The cut-off frequency is:

6.25 GHz

4.75 GHz

1.5 GHz

8.75 GHz

⇒ If a common emitter amplifier with an emitter resistance R

_{C}has an overall transconductance gain of 1 m A/V, a voltage gain of - 4 and desensitivity of 50, then the value of the emitter resistance R would be

50 kΩ

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⇒ An impulse function consist of

pure dc

pure a.c

entire frequency range with constant phase

infinite bandwidth with linear phase vaariations

⇒ To protect the diodes in a rectifier and capacitor input filter circuit it is necessary to use

surge resistor

surge inductor

surge capacitor

both (a) and (b)

⇒

Match the following:

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

A. | On-off | 1. | steam kettle with different settings |

B. | Proportional | 2. | Elevator |

C. | Cascade | 3. | Robot-positioning |

D. | Digital | 4. | Domestic Refrigerator |

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

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

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

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

⇒ Consider the following statements

- If ensemble and time averages of a random process are identical, the process is ergodic.
- If ensemble and time average of a random process are not identical, the process is ergodic.
- An ergodic process is stationary.
- A stationary process is necessarily ergodic.

1 only

1 and 3 only

1, 3 and 4 only

1 and 4 only

⇒ To ensure that only dominant mode TE

_{10}is allowed to propagate in an air filled rectangular waveguide, the lower frequency limit and upper frequency limit are

about 25% above

*f*

*for TE*

_{c}_{10}and 5% below

*f*

*for TE*

_{c}_{20}mode respectively

about 50% above

*f*

*for TE*

_{c}_{10}and 25% below

*f*

*for TE*

_{c}_{20}mode respectively

about 25% above

*f*

*for TE*

_{c}_{10}and 25% below

*f*

*for TE*

_{c}_{20}mode respectively

none of the above

⇒ Self impedance is

same for transmitting (T

_{t}) and receiving antenna (T

_{r})

T

_{t}> T

_{r}

T

_{r}> T

_{t}

no relation

⇒ A klystron amplifier generally uses Pierce gun

TRUE

FALSE

⇒ A seven bit code (even parity) 1111101 may have error. The correct code is

1111101

1111111

101011

1100011

⇒ If the ratio

*p*(

*s*)/

*q*(

*s*) represents a transfer function then

the degree of

*p*(

*s*) may be as small as zero, independent of degree of

*q*(

*s*)

the degree of

*p*(

*s*) and

*q*(

*s*) must be equal

the degrees of

*p*(

*s*) and

*q*(

*s*) must not be equal

the degrees

*p*(

*s*) and

*q*(

*s*) must differ by at least two

⇒ Ohmic range of metal film resistors is

1 to 100 ohms

10 to 1 K ohms

100 to 1 M ohms

100 to 100 M ohms

⇒ The FM broadcast band is from

550 to 1600 kHz

88 to 108 kHz

88 to 108 MHz

1600 kHz to 59.75 MHz

⇒

**Assertion (A):** In an R-L circuit having high inductance, the rise of current is very slow.

**Reason (R):** The time constant of R-L circuit is L/R.

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

⇒ In a combination limiter with sinusoidal input voltage the output wave can be nearly square.

TRUE

FALSE

⇒ An AC source or RMS voltage 20V with internal impedance Z

_{s}= (1 + 2

*j*) Ω feeds a load of impedance Z

_{L}= (7 + 4

*j*) Ω in the figure below. The reactive power consumed by the loa

8 VAR

16 VAR

28 VAR

32 VAR

⇒ A pulsed radar produces 1 μ sec pulses at a rate of 1000 per second. The duty cycle is

0.001

0.01

0.1

1

⇒ If a

_{ac}for transistor is 0.98 then β

_{ac}is equal to

51

49

47

45