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Q1. | The hexadecimal number system is |

A. | widely used in analyzing and programming microprocessors [Correct Answer] |

B. | an obsolete system no more in use [Wrong Answer] |

C. | used in calculators only [Wrong Answer] |

D. | none of the above [Wrong Answer] |

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

⇒ A separately excited dc motor is run from a dc source through a chopper. At 600 rpm and rated torque, the duty cycle of chopper is 0.8. At 600 rpm and half the rated torque, the duty cycle is likely to be

0.9

0.8

0.75

0.6

⇒ For AM receivers the standard IF frequency is

106 kHz

455 kHz

1.07 MHz

10.7 MHz

⇒ For the BJT shown in figure, β = 50, the value of V

_{CE}

3.13 V

4.24 V

5.18 V

none

⇒ In broadcast television, the number of lines per frame is chosen to be odd number to

reduce the required bandwidth

improve resolution

reduce peak power requirement

make interlacing easier

⇒ Which solid dielectric has highest temperature limit?

E

H

C

F

⇒ Which device changes parallel data to serial data?

Decoder

Multiplexer

Demultiplexer

Flip flop

⇒ If the peak value of output of a half wave rectifier is 100 V, the rms value is

100 V

50 V

70.7 V

35.35 V

⇒ Figure of merit is always unity in

AM

SSB-SC

FM

All

⇒ Directive gain is

a power ratio

a voltage ratio

a current ratio

a distance ratio

⇒ In figure, the transmission parameters are A = C = 1, B = 2 and D = 3. Then Z

_{in12/13 Ω13/12 Ω3 Ω4 Ω}

⇒ In the circuit of figure the current through L at

*t*= &infin

0

0.416666666666667

6.67 A

5.1 A

⇒ Find the power absorbed or delivered by each sou

*a*= -32

*b*= - 12

*c*= -80

*d*= -60

*a*= -32

*b*= - 12

*c*= 80

*d*= 60

*a*= 32

*b*= 12

*c*= -80

*d*= 60

*a*= -32

*b*= 12

*c*= 80

*d*= -60

⇒ In a series inverter

the commutating elements carry full load current

the commutating elements carry upto 50% of load current

the commutating elements do not carry load current

any of the above

⇒ An electrical network with 8 independent nodes will have __________ nodal equations.

4

6

7

8

⇒ A function

*f*(

*t*) =

*k*

*e*

^{at}is __________ for (a > 0).

stable

unstable

marginal

none

⇒ In the FM wave described by equation

*v*= 15 sin (4 x 10

^{8}

*t*+ 3 sin 1100

*t*), the carrier frequency and signal frequency respectively are

63.66 MHz and 175 Hz

4 x 10

^{8}Hz and 1100 Hz

175 Hz and 63.66 MHz

1100 Hz and 4 x 10

^{8}Hz

⇒ The correct form of expression B

^{3}-2 A C in FORTRAN 77 is

B * * 3 - 2 * A * C

B * 3 - 2 * A AC

B * * 3 - 2 ** A * C

B *** 3 - 2 * A * C

⇒ The applications of shift registers are

- Time delay
- Ring counter
- Serial to parallel data conversion
- Serial to serial data conversion

1, 2, 3

2, 3, 4

1, 2, 3, 4

1, 2, 4

⇒ The root locus branches

start from open loop poles and terminate at zeros

start from open loop zeros and terminate at poles

may start from pole or zero and terminate at another pole or zero

none of the above

⇒ For the logic circuit of the given figure the simplified Boolean expressio

A + BC

A + BC

A + B C

A + BC

⇒ In the above case, what will be the value of capacitor to obtain 100 kHz frequency?

0.0065 pF

0.0130 pF

0.0260 pF

0.520 pF

⇒ Which of the follow

Voltage series feedback and decrease I/P impedance.

Voltage shunt feedback and decrease I/P impedance.

Voltage series feedback and increase I/P impedance.

Voltage shunt feedback and increase I/P impedance.

⇒ F

_{2}layer of atmosphere extends from

250 km to 400 km

150 km to 250 km

50 km to 150 km

15 km to 50 km

⇒ The poles of an RC function

are simple and lie or negative real axis

are simple and lie on ω axis

must be complex conjugate

may be anywhere on

*s*plane

⇒ In energy band diagram of

*n*type semiconductor, the donor energy level is

in valence band

in conduction band

slightly above valence band

slightly below conduction band

⇒ Silicon diodes have __________ reverse resistance than germanium diodes.

a much smaller

a much larger

an infinite

a negligible

⇒ Which one of the following circuits is used for converting a sine wave into a square wave?

Astable multivibration

Monostable multivibration

Bistable multivibration

Schmitt trigger

⇒ In intrinsic semiconductor, the fermi level

lies at the centre of forbidden energy gap

is near the conduction band

is near the valence band

may be anywhere in the forbidden energy gap

⇒ Consider the following amplifier with negative feed

-9 x 10

^{-3}

9 x 10

^{-3}

-11 x 10

^{-3}

11 x 10

^{-3}

⇒ Three resistance of 15 Ω each are connected in delta. The resistance of equivalent star will have a value of

15 Ω

5 Ω

5/3 Ω

45 Ω