Q1. | The time constant of a series RL circuit is |

A. | LR [Wrong Answer] |

B. | L/R [Wrong Answer] |

C. | R/L [Correct Answer] |

D. | e^{-R/L} [Wrong Answer] |

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Explanation:-
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⇒ When we use

`RRC`

instruction once in 8085, the number ismultiplied by 2

divided by 2

multiplied by 4

divided by 4

⇒ Which one of the following is the correct sequence of the numbers represented in the series given below?

2, 3, 4, 5, 6......

2, 4, 6, 8, 10 .....

2, 4, 6, 10, 12......

2, 4, 6, 10, 16 .....

⇒ What would be the rms value of a sine wave having the same peak value as that of the above mentioned periodic wave?

42.2 V

19 V

38.2 V

none

⇒ For wired AND connection we should use

TTL gates with active pull up

TTL gates with open collector

TTL gates without active pull up and with open collector

any of the above

⇒ The function of duplexer in a RADAR is

to permit the use of same antenna for transmission and reception

to provide gain to the transmitted power

to amplify the received signal

both (b) and (c)

⇒ Carbon steel has a residual flux density of 1 W

*b*/

*m*

^{2}.

TRUE

FALSE

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**Assertion (A):** The Fourier series of the wave shown in the figure does not contain even harmao

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

⇒ In the figure, the

emits light when both S_{1} and S_{2} are closed

emits light when both S_{1} and S_{2} are open

emits light when only S_{1} and S_{2} is closed

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⇒ A seven bit (even parity) code 0010001 may have error. The correct code is

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⇒ The Thevenin's equivalent of network in figure(1) is a 10 V source in series with 2 Ω resistance. If a 3 Ω resistance is connected across AB as shown in figure(2) the Thevenin's equivalen

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⇒ It *f*(*t*) is an odd function, the coefficients F* _{n}* in the exponential form of Fourier series

are real

are imaginary

are complex

may be real or imaginary

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**Assertion (A):** An electrostatic voltmeter is free from hysteresis and eddy current errors.

**Reason (R):** An electrostatic voltmeter has a number of fixed and moving vanes in parallel.

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

⇒ The precision of an instrument indicates its ability to reproduce a certain reading with a given

drift

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⇒ In an ideal junction transistor the impurity concentration in emitter (E ), base (B) and collector (C) is such that

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⇒ The drain characteristics of JFET are drawn between

V

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drain current and V

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drain current and V

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⇒ Among the digital IC families - ECL, TTL, and CMOS

ECL has the least propagation delay

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CMOS has the lowest noise margin

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⇒ A pulse width signal can be governed by

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monostable multi-vibrator

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⇒ If operator '

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⇒ A reactance function is always a quotient of

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even to odd or odd to even polynomials

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⇒ Consider following statements :

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statement (1) is true and (2) is false

statement (1) and (2) both are true

statement (1) is false and (2) is true

statement (1) and (2) both are false

⇒ An

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highly doped

*p*substrate and highly doped

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lightly doped

*n*substrate and highly doped

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⇒ In a thyristor the gate lead is connected to the

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TRUE

FALSE

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Full wave rectified sinusoid

Exponentially increasing sinusoid

Exponentially decreasing sinusoid

⇒ Graphic equaliser system in stereophonic systems generally have

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⇒ The advantages of flash memory over EEPROM are

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none of the above

⇒ Armstrong F.M. transmitter performs frequency multiplication in stages

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⇒ Consider the follo

1 and 2

1 and 3

1, 2 and 3

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⇒ Data are recorded on a 2, 400 ft reel of magnetic tape at a density of 556 characters per inch. If the record length is of 100 characters and 0.75 inch of record gap, the tape utilization factor is

0.85

0.67

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