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Q1. | Both ROM and RAM can be accessed randomly. |

A. | TRUE [Correct Answer] |

B. | FALSE [Wrong Answer] |

View Answer
Explanation:-
Answer : ADiscuss 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 :**

⇒ Audio frequency range lies between

20 Hz and 20 kHz

20 kHz and 20 MHz

2 MHz and 20 MHz

20 MHz and 200 MHz

⇒

Match the following:

List I (Types of N-bit ADC) | List II (Characteristics) | ||
---|---|---|---|

A. | Flash converter | 1. | Integrating Type |

B. | Successive | 2. | Fastest converter approximation |

C. | Counter ramp | 3. | Maximum conversion time = N bits |

D. | Dual slow | 4. | Used a DAC in its feedback path |

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

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

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

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

⇒ The materials which become polarized on the application of mechanical stress are called piezoelectric.

TRUE

FALSE

⇒

Match the following:

List I (Logic) | List II (Characteristic) | ||
---|---|---|---|

A. | RTL | 1. | High fan out |

B. | CMOS | 2. | Highest speed of operation |

C. | I^{2}L | 3. | High noise immunity |

D. | ECL | 4. | Lowest product of power and delay |

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

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

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

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

⇒ When a potential is applied across an intrinsic semiconductor, holes flow

towards positive terminal

away from positive terminal

in the external circuit only

none of the above

⇒ In an unloaded transformer, the fluxes limiting the primary and secondary are 30 mWb and 20 mWb. The coefficient of coupling is

1

0.1

0.33

0.67

⇒ Equipment using BCD numbers

pocket calculators

electronic counter

digital voltmeters

all of the above

⇒ At 20 GHz , the gain of a parabolic dish antenna of 1 meter diameter and 70% efficiency is

15 dB

25 dB

35 dB

45 dB

⇒ A circuit has two branches in parallel and each branch has only one element. The applied voltage and source current are

*v*= 200 sin (200

*t*+ 30°) and

*i*= 50 sin (200

*t*+ 50°). If one branch has capacitor, the other branch contains

resistance

inductance

capacitance

resistance or capacitance

⇒ The amplitude of a random signal uniformly distributed between - 5 V and 5 V. If the positive values of the signal are uniformly quantized with a step size of 0.05 V, and the negative values are uniformly quantized with a step size of 0.10 V, the resulting signal to quantization noise is approximately

46 dB

43.8 dB

42 dB

40 dB

⇒ Resistivity of semiconductors is around 100 Ω-m.

TRUE

FALSE

⇒ Serial input data of 8085 can be loaded into bit-7 of the accumulator by

executing a RIM instruction

executing RSTI

using TRAP

none of the above

⇒ Epitaxial growth is used in IC

_{s}

because it produces low parasitic capacitance

because it yields back to back isolating

*pn*Junction

to grow single crystal

*n*doped silicon on a single crystal P-type substrate

to grow Selectivity single crystal P doped silicon of one resistivity on a P type substrate of a different resistivity

⇒ A real number consists of

integer part

integer part and fraction part

integer part, fraction part along with positive or negative sign

none of the above

⇒ Which of the following measurements can be done using a counter?

- Pulse duration
- Interval between two pulses
- Amplitude of the pulse
- Rise time of a pulse

1 and 2

2 and 3

1 and 4

2 and 4

⇒ Which of the following is used as detector in audio frequency ac bridges?

AC voltmeter

CRO

Head phones

Vibration galvanometer

⇒ The input resistance R, of an ideal voltage amplifier is __________ and that of a current amplifier is __________ .

zero, zero

infinite, infinite

zero, infinite

infinite, zero

⇒ The inputs to a 3 bit binary adder are 111

_{2}and 110

_{2}. The output will be

101

1101

1111

1110

⇒ The function shown in the fig

impulse function

signum function

unit step function

none of the above

⇒ Consider the following: Energy storage capability of basic passive elements is due to the fact that

- resistance dissipates energy
- capacitance stores energy
- inductance dissipates energy

1, 2, and 3

1 and 3

3 only

1 and 2

⇒ 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 `

⇒ For the system in the given figure the root l

is on real axis between points

*s*= -1 and

*s*= -3.6

is on real axis between points

*s*= 0 and

*s*= -1

is on real axis between points

*s*= -3.6 and

*s*= ∞

is on real axis between points

*s*= 0 and

*s*= -3.6

⇒ For the high-pass circuit to act as a differentiator, the time constant must be

small

very small in comparison to the time period of the input signal

very high in comparison to the time period of the input signal (that is low pass circuit)

moderate value

⇒ Consider the following statements

- Gunn diode can be used in combinational logic circuits.
- Gunn diode can be used in sequential logic circuits.
- Both Gunn diode and GaAs Mesfet can be used in logic circuits.

1, 2, and 3

1 and 2 only

2 and 3 only

1 and 3 only

⇒ A microprocessor can understand instruction written in

machine language only

mnemonics operation codes only

high language only

both machine language and mnemonics operation codes

⇒ For the network shown below, the Thevenin voltage and R

_{TH}is equal to _______

0 V, 58.82 Ω

0 V, 96.774 Ω

0 V, 3 KΩ

None of these

⇒

**Assertion (A):** Divide-64 counter is a Mod-64 counter and divides the input frequency by 64

**Reason (R):** A Mod 64 counter can be obtained by cascading Mod 16 and Mod 4 counters.

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

⇒ A

*n*-type silicon sample contains a donor concentration of N

_{d}= 2 x 10

^{16}cm

^{-3}. The minority carrier hole lifetime is t

_{p0}= 5 μs. The thermal equilibrium generation rate of hole is:

1.125 x 10

^{9}cm

^{-3}s

^{-1}

0.625 x 10

^{9}cm

^{-3}s

^{-1}

4.5 x 10

^{9}cm

^{-3}s

^{-1}

2.25 x 10

^{9}cm

^{-3}s

^{-1}

⇒ In a base driver amplifier the voltage gain is the ratio of

ac collector voltage to ac base voltage

ac emitter voltage to ac base voltage

ac collector voltage to ac emitter voltage

ac base voltage to ac emitter voltage

⇒ The Darlington pair consists of the following two stages

CE and CC

both CE

both CC

CE and CB