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Q1. | Which interrupts are masked? |

A. | 5.5 [Wrong Answer] |

B. | 6.5 [Correct Answer] |

C. | 7.5 [Wrong Answer] |

D. | None [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 :**

⇒ The concentration of minority carriers in a semiconductor depends mainly on

the extent of doping

temperature

the applied bias

none of the above

⇒ Which of the following output configurations are available in a TTL gate?

- Open collector output
- Totem pole output
- Tristate output

1 only

1 and 2 only

2 and 3 only

1, 2 and 3

⇒ Which of the following is a valid real constant?

1281

1281

KM

11821

⇒ The value of current at resonance in series R-L-C circuit is affected by the value of

C

L

R

all of the above

⇒ A sequence

*x*(

*n*) with the

*z*transform X(

*z*) =

*z*

^{4}+

*z*

^{2}- 2

*z*+ 2 - 3

*z*- 4 is applied as an input to a linear, time invariant system with the impulse response

*h*(

*n*) = 2δ(

*n*- 3) wh

-6

zero

2

-4

⇒ Which camera tube has highest sensitivity and very wide spectral response?

Vidicon

Plumbicon

New vicon

Saticon

⇒ In Laplace transform, multiplication by

*e*

^{-at}in time domain becomes

translation by

*a*in

*s*domain

translation by (-

*a*) in

*s*domain

multiplication by

*e*in s domain

^{-as}none of the above

⇒ Voltage standing wave pattern in a loss less transmission line with characteristic impedance 50 Ω and a resistive load is shown in the figu

50 Ω

200 Ω

12.5 Ω

0 Ω

⇒ When a function Z(

*s*) having a pole at infinity is realized, we get

a capacitance in series

a resistance in series

an inductance in series

a resistance or inductance in series

⇒ If the memory chip size is 256 x 1 bits, then the number of chips required to make up 1 kB (1024) bytes of memory is

32

24

12

8

⇒

Match the following:

List I (Functional headings of instruction set of 8085) | List II (Functions performed) | ||
---|---|---|---|

A. | Branch group | 1. | Compares, rotates etc. |

B. | Logic group | 2. | Moves, loads, stores etc. |

C. | Data transfer group | 3. | Initiates conditional or unconditional jumps, calls etc. |

A-1, B-2, C-3

A-2, B-3, C-1

A-3, B-1, C-2

A-1, B-3, C-2

⇒ The impulse response of the DT - LTI system is given be

1 and 2

2 and 3

1 and 3

1, 2 and 3

⇒ For an ideal antenna, numerical value of directivity must be

∞

0

1

any value

⇒ In a driving point function, the degrees of numerator and denominator polynomials in

*s*may differ by either zero or one only.

TRUE

FALSE

⇒

**Assertion (A):** Thermistors are commonly used to measure hot spot temperatures in electric machines.

**Reason (R):** Thermistor has the advantages of high temperature coefficient, small size and high speed of response.

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 binary sum of 111010

_{2}and 11011

_{2}is

1010101

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1011001

_{2}

1011101

_{2}

1111111

_{2}

⇒ For a n-channel JFET with

*r*

_{0}= 10 kW, (V

_{Gs}= 0 V, V

_{P}= - 6 V)the drain resistance

*r*

_{d}at V

_{GS}= - 3 V is given by

40 kΩ

2.5 kΩ

4.44 kW

120 kW

⇒ If the number of atoms per unit volume of a monoatomic gas changes, the dielectric constant still remains constant.

TRUE

FALSE

⇒ For the wave shown in figure, the average and rms values

50 A and 57.73 A

57.73 A and 50 A

25 A and 57.73 A

57.73 A and 70.7 A

⇒ Fidelity of a receiver represents

the sensitivity expressed in terms of voltage that must be applied to the receiver input to give a standard output

the extent to which the receiver is capable of distinguishing between the desired signal and other frequencies

the variation of the output with the modulation frequency when the output impedance is a resistance

none of the above

⇒ Broadcasting antennas are generally

omnidirectional type

vertical type

horizontal type

helical

⇒

Match the following:

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

A. | Reflex Klystron | 1. | High efficiency |

B. | Dielectric loaded wave guide | 2. | Slow wave structure |

C. | TWT | 3. | Cross field device |

D. | Multi Cavity Klystron | 4. | Oscillator |

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

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

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

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

⇒ When a current source I is suddenly connected across a two terminal relaxed RC circuit at time

*t*= 0, the voltage across the current source is shown in figure. The RC circui

a series combination of R and C

a parallel combination of R and C

a series combination of R and parallel combination of R and C

a pure capacitor

⇒ Graphic equaliser system in stereophonic systems generally have

3 or 4 bands

1 band

more than 8 bands

large number of bands

⇒ A potential difference is developed across a current carrying metal strip when the strip is placed in a transverse magnetic field. The above effect is known as

Fermi's effect

Photo electric effect

Joule's effect

Hall's effect

⇒ How many roots with positive real parts do the equation

*s*

^{3}+

*s*

^{2}-

*s*+ 1 = 0 have?

Zero

One

Two

Three

⇒ For a system with transfer funct

2.828

5.2915

5.088

cannot be determined

⇒ A 3 phase dual converter consists of

two 3 phase semiconverters connected in parallel

two 3 phase semiconverters connected in antiparallel

two 3 phase full converters connected in antiparallel

two 3 phase full converters connected in parallel

⇒ For a 400 kHz transmission line having L = 0.5 mH/km, C = 0.08 mF and negligible R and G, the value of propagation constant P will be

15.9 radians/km

31.8 radians/km

63.6 radians/km

105.4 radians/km

⇒ Which of the following compensation method in amplifier can be used to reduce the bandwidth?

Pole-zero compensation

Dominant pole compensation

Lead compensation

Any of the above