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Q1. | The digit F in hexadecimal system is equivalent to number __________ in decimal system. |

A. | 16 [Wrong Answer] |

B. | 15 [Correct Answer] |

C. | 17 [Wrong Answer] |

D. | 8 [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 :**

⇒ Which of the following ICs has only one NAND gate?

7410

7420

7430

7447

⇒ The coil of a moving iron instrument has a resistance of 500 Ω and an inductance of 1 H. It reads 250 V when a 250 V dc is applied. If series resistance is 2000 Ω, its reading when fed by 250 V, 50 Hz ac will be

260 V

252 V

250 V

248 V

⇒ In figure, Z

_{1}= 200∠60° Ω, Z

_{2}= 400∠ - 90° Ω, Z

_{3}= 300∠0°. Then Z

_{4}for bridge to be balanced

150∠30° Ω

400∠ - 90° Ω

300∠90° Ω

600∠ - 150° Ω

⇒ Which of the following is open loop system?

Wind screen wiper

Aqualing

Respiratory system of animal

System for controlling antirocket missiles

⇒ For the block diagram of the given figure, the equation describing system dynamic

(1 + RC

*s*) Δθ

_{0}(

*s*) = Δθ

_{i}(

*s*) + R Δ H(

*s*)

(1 + RC

*s*) [ΔH(

*s*)] = Δθ(

*s*) - Δθ

_{0}(

*s*)

(1 + RC

*s*) Δθ

_{0}(

*s*) = RΔ H(

*s*) - Δ θ

*(*

_{i}*s*)

(1 + RC

*s*) Δθ

*(*

_{i}*s*) = Δ H(

*s*)[R] - Δθ

_{0}(

*s*)

⇒ 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

⇒ A material for permanent magnet should have

High retentivity

High permeability

Low hysteresis loss

High hysteresis loss

⇒ In figure The minimum and maximum load currents

0 and 60 mA

0 and 120 mA

10 mA and 60 mA

10 mA and 120 mA

⇒ For TE or TM modes of propagation in bounded media, the phase velocity is

independent of frequency

is a linear function of frequency

is a non-linear function of frequency

can be frequency dependent or frequency independent on the source

⇒ In PCM, if the number of quantization levels is increased from 4 to 64, then the bandwidth requirement will approximately be increased __________ times.

8

16

3

32

⇒ For any test point

*s*on the real axis, the sum of angular contributions of the complex conjugate poles is

90°

180°

270°

360°

⇒ The following program starts at location 0

20 H

02 H

00 H

FFH

⇒ In an ac circuit the fundamental component of current wave lags the corresponding voltage wave by 20°. The third harmonic component of current wave lags the corresponding voltage by an angle.

less than 20°

more than 20°

equal to 20°

equal to or more than 20°

⇒ The abbreviation DTL stands for

Digital Timing Logic

Diode Transistor Logic

Dynamic Transient Logic

Delayed Tracking Logic

⇒ The portion of the atmosphere closest to ground is called ionosphere.

TRUE

FALSE

⇒ In the given circuit, the switch has been in position 1 for quite a long time. At

*t*= 0 the switch is moved to position 2. At this position what is the time const

0.1 s

1 s

0.11 s

1.11 s

⇒ A 16 x 8 ROM stores these words in its first four locations, as given below. Which of this represents 3 CH in hexadecimal?

R

_{0}= 1110 0010

R

_{1}= 0101 0111

R

_{2}= 0011 1100

R

_{3}= 1011 1111

⇒ 9's complement of 56

_{10}is

43

_{10}

84

_{10}

65

_{10}

53

_{10}

⇒ In rectifier circuits, the rms value of ac component of output voltage is equal to

V

_{rms}

0.5 V

_{rms}

(V

_{rms}- V

_{dc})

^{0.5}

(V

_{rms}

^{2}- V

_{dc}

^{2})

^{0.5}

⇒ In a single phase full wave ac regulator the firing angles during both half cycles are equal.

TRUE

FALSE

⇒ Which one of the following type of negative feedback increases the input resistance and decreases the output resistance of an amplifier?

Current series feedback

Voltage series feedback

Current shunt feedback

Voltage shunt feedback

⇒ The basic storage element in a digital system is

flip flop

counter

multiplexer

encoder

⇒ In a medium if ε, μ and σ are constant throughout the medium, then it is known as

perfect vacuum

distributed medium

homogeneous medium

dielectric medium

⇒ A network has 10 nodes and 17 branches. The number of different node pair are

7

9

10

45

⇒ In an LC immittance H (

*s*)

the slope of

*d*H (

*j*ω)/

*d*ω is always negative

the slope of

*d*H (

*j*ω)/

*d*ω is always positive

the slope of

*d*H (

*j*ω)/

*d*ω may be positive or negative

the slope of

*d*H (

*j*ω)/

*d*ω is constant

⇒ For a high pass filter attenuation = 0 at

*f*= 0.

TRUE

FALSE

⇒ In figure

*v*

_{i}= 10 mV dc maximum. The maximum possible dc output offset voltag

60 mV dc

110 mV dc

130 mV dc

150 mV dc

⇒ A sample of N type semiconductor has electron density of 6.25 x 10

^{8}/cm

^{2}at 300 K. If the intrinsic concentration of carriers in this sample is 2.5 x 10

^{13}/cm

^{3}at this temperature, the hole density works out to be

10

^{6}/cm

^{3}

10

^{8}/cm

^{3}

10

^{10}/cm

^{3}

10

^{l2}/cm

^{3}

⇒ Figure shows a portion of linear

*v*-

*i*characteristics of diode. If applied voltage is + 6 V, the current wil

42 mA

48 mA

51 mA

54 mA

⇒ Which of the following are the memory performance parameters?

- Access time and latency
- Block size and Block access time
- Cycle time and Bandwidth

1 only

1 and 2 only

2 and 3 only

1, 2 and 3