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Q1. | Which of the following statement is correct? |

A. | Decimal 9 is represented as 1011 in Excess-3 code [Wrong Answer] |

B. | Decimal 9 is represented as 1001 is BCD code [Correct Answer] |

C. | Decimal 10 is represented as 1100 is Gray code [Wrong Answer] |

D. | Decimal 10 is represented as 1001 in binary code [Wrong Answer] |

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

⇒ In force voltage analogy, displacement is analogous to

current

voltage

charge

none of the above

⇒ In admittance parameter set, the dependent variables are the currents at the two ports.

TRUE

FALSE

⇒ PID controlled system has

P and I actions in forward path and D action in feedback path

P and I actions in feedback path and actions in forward path

All the three (

*i.e.,*P, I and D) actions in forward path

All the three (

*i.e.,*P, I and D) actions in feedback path

⇒ In an ac single phase energy meter, the potential coil is put on

both side limbs, of upper magnet

central limb of upper magnet

one side limb of upper magnet

either (a) or (b)

⇒ Dynamic range of hi-fi system is at least

150 dB

120 dB

80 dB

40 dB

⇒

**Assertion (A):** In a CRT, grid is kept at negative potential with respect to cathode.

**Reason (R):** The function of grid in an electronic tube is to control the number of electrons.

Both A and R are true and R is correct explanation of A

Both A and R are true but R is not correct explanation of A

A is true R is false

A is false R is true

⇒ To produce

*p*type semiconductor we add

acceptor atoms

donor atoms

pentavalent impurity

trivalent impurity

⇒

Match the following:

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

A. | TTL | 1. | Maximum power consumption |

B. | ECL | 2. | Highest packing density |

C. | NMOS | 3. | Least power consumption |

D. | CMOS | 4. | Saturated Logic |

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

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

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

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

⇒ In a low level AM system, the modulated amplifiers stage must be

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non-linear devices

class C amplifier

linear devices

⇒ A chopper is a high efficiency circuit.

TRUE

FALSE

⇒ Norton's equivalent circuit

is same as Thevenin's circuit

has no relation with Thevenin's circuit

is dual of Thevenin's circuit

is reciprocal of Thevenin's circuit

⇒ In a bipolar transistor

the base is thick and highly doped

the base is thin and highly doped

the base is thick and lightly doped

the base is thin and lightly doped

⇒ In D-type FF, Preset (Pr) and clear (Clr) inputs are called

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Asynchronous

Data

None

⇒ To measure moisture in wood, the most suitable method is

electric conduction

electrical-capacitive

absorption of radiation

equilibrium-moisture Vs humidity

⇒ A full subtractor has a total of

2 inputs

3 inputs

4 inputs

5 inputs

⇒ In a Karnaugh map for an expression having 'don't care terms' the don't cares can be treated as

0

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none of the above

⇒ An excitation is applied to a system at

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casual

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⇒ Bit is a unit of

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⇒ Conversion rate, for a successive approximation ADC which uses 2 MH

*z*clock and 5 bit binary ladder containing 8 VV reference voltage is __________ .

64516.12

*conversions/sec*

400000

*conversions/sec*

400000

*bps*

2.5

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⇒ A 4 bit DAC gives an output of 4.5 V for input of 1001. If input is 0110, the output is

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2.0 V

3.0 V

4.5 V

⇒ It is required to measure angular position. Out of the transducers

- Circular potentiometer
- LVDT
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- Synchro

1, 2, 3, 4

2 and 3

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⇒ Consider

*z*transform of a signal as given b

IIR

FIR

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*n*

Cannot determined

⇒ A nibble corresponds to

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8 successive bits of data

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⇒ When load is coupled to class A amplifier through transformer, efficiency decreases.

TRUE

FALSE

⇒

Match the following:

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

A. | Interface | 1. | A measure of rate of data transmission |

B. | A bit | 2. | A binary digit |

C. | Band speed | 3. | The common boundary between various sections and subsections |

4. | A/D converter |

A-3, B-2, C-1

A-3, B-1, C-2

A-2, B-4, C-1

A-4, B-2, C-3

⇒ In a P-N-P junction transistor as compared to base region is more heavily doped so that

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the flow across the base regional is only because of electrons

the flow across the base region is mainly because of holes

⇒ For TM waves in a parallel plate waveguide, the minimum attenuation arising from imperfect conductors would occur at a freq. of (

*f*is the cut off frequency)

_{c}3

*f*

_{c}3

*f*

_{c}2

*f*

_{c}2

*f*

_{c}⇒ In the absence of noise, if C is channel capacity in bits/s, δ

*f*is channel bandwidth in Hz and N is number of coding levels. Then

C = log

_{2}N

C = (δ

*f*) log

_{2}N

C = 2 (δ

*f*) log

_{2}N

C = 0.5 (δ

*f*) log

_{2}N

⇒ The coefficients F

_{n}in the exponential form of Fourier series are

independent of frequency

functions of frequency

even function of frequency

odd functions of frequency

⇒ A magnetic circuit has an iron length of 20 cm and air gap length 0.1 cm. If μ

_{r}= 200 then

mmf for iron and air gap are equal

mmf for iron is much less than that for air gap

mmf for iron is much more than that for air gap

either (a) or (c)