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Q1. | For a microprocessor system using IO-mapped IO the following statement is NOT true |

A. | memory space available is greater [Wrong Answer] |

B. | not all data transfer instructions are available [Wrong Answer] |

C. | IO and memory address spaces are distinct [Wrong Answer] |

D. | IO address space is greater [Correct Answer] |

View Answer
Explanation:-
Answer : DDiscuss 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 total number of leads in MOS controlled thyristor is

2

3

4

2 or 3

⇒ A transmitted using AM has in modulated carrier output power of 10 KW and can be modulated to a maximum depth of 90% by a sinusoidal modulating voltage without causing overloading. Find the value to which an modulated carrier power can be increased without resulting in overloading if the maximum permitted modulating index is 40%

14 KW

12.96 KW

26.96 KW

2.96 KW

⇒ A message signal with bandwidth 10 kHz is lower sideband SSB modulated with carrier frequency

*f*

_{c1}= 10

^{6}Hz. The resulting signal is then passed though a narrow band frequency modulator with carrier frequency

*f*

_{c2}= 10

^{9}Hz. The bandwidth of the output would be

4 x 10

^{4}Hz

2 x 10

^{6}Hz

2 x 10

^{9}Hz

2 x 10

^{10}Hz

⇒ In the series circuit shown in figure, for series resonance, the value of the coupling coefficient, K wil

0.25

0.5

0.1

1

⇒ In a programmable counter

the starting number for counting can be programmed

the modulus can be programmed

both the starting number and modulus can be programmed

either the starting number or modulus can be programmed

⇒ A buffer amplifier should have

high output impedance and high input impedance

high output impedance and low input impedance

low output impedance an low input impedance

low output impedance and high input impedance

⇒ The stud in a stud mounted SCR acts as

anode

cathode

gate

anode or cathode

⇒ Some possible disadvantages of high level modulation in TV transmitters are

- Video monitor has to supply high video voltages upto several hundred volts into highly capacitive loads drawing high current at video frequencies
- The grid modulated stage presents a varying load to its driver
- The linearity and high video driving power present design problems

1 only

1 and 2 only

1, 2 and 3

2 and 3 only

⇒ Equipotential surfaces about a point charge are in which one of the following forms?

Sphere

Planes

Cylinders

Cubes

⇒ The parameter

*h*

_{11}for CB circuit is higher than that for CE circuit.

TRUE

FALSE

⇒ The logic represented by the abbreviation ECL is

Emitter Coupled Logic

Electron Carrier Logic

Encoding Clock Logic

Electrostatic Channel Logic

⇒ As per BIS, solid insulators are classified into 6 categories.

TRUE

FALSE

⇒ If a line is terminated in characteristic impedance Z

_{0}, the input impedance measured at the input will be

Z

_{0}

Z

_{0}/2

Zero

infinite

⇒ The integral of

*k*δ(

*t*) is

a step function of magnitude

*k*

a step function 'of magnitude 1/

*k*

a ramp of slope

*k*

a ramp of slope 1/

*k*

⇒ In directional coupler of the given figure, the terms |

*S*

_{14}| and |

*S*

_{23}| of scattering matrix are ne

1 each

0.5 each

0.1 each

1 and 0.5 respectively

⇒ Even at room temperature, an intrinsic semiconductor has some holes. These holes are due to

electron

doping

thermal energy

free electrons

⇒ A loss less line of characteristic impedance Z

_{0}is terminated in pure reactance of -

*j*

*Z*

_{0}value. VSWR is

10

2

1

infinity

⇒

**Assertion (A):** The root locus of a control system is symmetrical about real axis.

**Reason (R):** For all polynomials with real coefficients, complex poles always occur in conjugate pairs.

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 correct but R is wrong

R is correct but A is wrong

⇒ Dolby system of noise reduction divides the total audio spectrum into

8 frequency bands

4 frequency bands

2 frequency bands

none of the above

⇒ The sum of two or more arbitrary sinusoidal is

always periodic

periodic under certain conditions

never periodic

periodic only if all the sinusoidals are identical in frequency and phase

⇒ The depth of penetration at 4 MHz is 10 cm, then at 2.5 MHz it is

62.5 cm

13 cm

6.25 cm

8 cm

⇒ What will be the propagation constant at 10 MHz?

3.4 radians/km

34.4 radians/km

344 radians/km

3440 radians/km

⇒ A full adder adds

2 bits

3 bits

4 bits

any number of bits

⇒ For the logic circuit shown in figure, the simplified Boolean expression for the output

A + B + C

AB

B

C

⇒

Match the following:

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

A. | Very low response at very high frequencies | 1. | Low-pass system |

B. | Over shoot | 2. | Velocity damping |

C. | Synchro-control transformer output | 3. | Natural frequency |

4. | Phase-sensitive modulation | ||

5. | Damping ratio |

A-1, B-5, C-4

A-3, B-2, C-4

A-2, B-5, C-4

A-4, B-1, C-3

⇒ In a TV, studio the function of vision switcher is to

edit television programs

relay television programs

control zoom lens

mix audio and video signals

⇒ In 8085, to disable the whole interrupt system (except TRAP)

the DI instruction may be used

the DO instruction may be used

the INTERRUPT instruction may be used

the El instruction may be used

⇒ The advantage of pulse modulation is

the transmitted power can be concentrated into short bursts

the time intervals between pulses can be filled with sample values from other message

pulse wave may obtain appreciable D.C. and low frequency content

all of the above

⇒ The number of layers in a Shockley diode are

2

3

4

2 or 3

⇒ Assuming that flip-flops are in reset condition initially, the count sequence observed at Q

_{A}in the circuit show

0010111...

0001011...

0101111...

0110100...