Namma Bengaluru: Learning Center

Showing posts with label Learning Center. Show all posts

Wednesday, January 18, 2012

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Friday, December 2, 2011

HTML Tutorial - 13

How to create a mixed frameset of rows and columns in Html Script ?

Solution :
Step 1: Go to Notepad.
Step 2: Copy the HTML script below to the notepad.

Step 3: Now save the file with .html format.
Step 4: Close the notepad and now open the saved file in your default browser .
That's it !
You will see like the below picture in your browser.

Mixed Frame sets in rows and columns

Model question paper of ELECTRONIC MEASUREMENTS AND INSTRUMENTATION of Diploma 3rd Sem - E & CE

DERARTMENT OF TECHNICAL EDUCATION

DIPLOMA COURSE IN ELECTRONICS & COMMUNICATION ENGG.

THIRD SEMESTER

ELECTRONIC MEASUREMENTS AND INSTRUMENTATION

MODEL QUESTION PAPER

MAX MARKS:100 TIME :3Hrs

INSTRUCTIONS:-
1) SECTION-I IS COMPULSORY
2 ) ANSWER ANY TWO FULL QUESTIONS FROM EACH OF THE REMAINING
    SECTIONS.

SECTION –I

1(a) Fill in the Blanks 5 X 1 = 5

1. Wein bridge is normally used for the measurement of ________

2. An example of inverse transducer is__________.

3. _________coating is used to collect secondary electrons in CRT.

4. The standards maintained at National standard labs are called ________

5. Errors due to human mistakes are called ____________.

(b) Write a note on IEEE488 GPIB interfacing. 5

SECTION-II

2 (a) Explain with a block diagram, the operation of a generalized electronic

measurement system. 9

(b) Define (i) accuracy (ii) Precision (iii) Error w.r.t measurements 6

3(a) A 0-100Volt Voltmeter has an accuracy of 1% of full scale reading.
If the voltage measured by this instrument is 83 volts, find the limiting error in percentage 5

(b) Explain the use of wein's bridge in frequency measurement.
Derive the equation for unknown frequency. 10

4(a) Explain the operation of the basic PMMC movement . 7

(b) Explain the basic principle of Electrodynamometer . 6

SECTION-III

5(a) With the help of a block diagram, explain the operation of Digital Storage

Oscilloscope. 9

(b) What are lissajous patterns?. Explain how they can be used for phase difference

measurement. 6

6(a) Explain the working of Heterodyne wave analyzer. 6

(b) list the uses of Spectrum analyzer. 3

7(a) Explain the principle of LVDT displacement transducer. 6

(b) List the advantages and disadvantages of thermistors. 4

SECTION-IV

8(a) Explain the working of Chopper DC amplifier type voltmeter. 7

(b) Explain the operation of Q meter. 8

9(a) Explain the working of Successive approximation type DVM. 10

(b) List the advantages of digital instruments. 5

10(a) Explain the principle of digital time interval measurement. 5

(b) List the precautions to prevent instrument damage. 5

(c)Write a note on shielding. 5

Model question paper of Digital Electronics of Diploma 3rd Sem - E & CE

DERARTMENT OF TECHNICAL EDUCATION

DIPLOMA COURSE IN ELECTRONICS & COMMUNICATION ENGG.

THIRD SEMESTER

MODEL QUESTION PAPER

Digital Electronics and Introduction to Microprocessor

MAX MARKS:100 TIME :3Hrs

INSTRUCTIONS:-
1    SECTION-I IS COMPULSORY
2    ANSWER ANY TWO FULL QUESTIONS FROM EACH OF THE REMAINING
    SECTIONS.

SECTION: I

1    a    Fill in the blanks with suitable words                                      1X5
    (i)    The number of comparators required to build an 8-bit flash
        ADC is--------------
    (ii)    Register which keeps track of instruction execution is---------
    (iii)    MC68000 is a ---------- bit processor
    (iv)    RISC stands for ----------
    (v)    A basic memory cell in a DRAM is ----------

    b    Write a note on Generic Array Logic      5

SECTION: II

2    a    Explain the circuit operation of TTL Nand gate for low and
        high state      10
    b    What three characteristics of real wires add up to distort
        signals that move through them                                        3
    c    What is the IEEE/ANSI symbol for tristate outputs     2

3    a    Explain the working of Binary ladder network for converting
        the digital to analog data                                                                8
    b    Define the terms Resolution & Accuracy as applied to DAC    4
    c    Determine the resolution of a 12-bit A/D converter having a
        full scale analog input voltage of 5v.                                             3

4    a    Explain the working of Successive approximation type ADC
        with block diagram     8
        the digital to analog data
    b    Define quantization error in ADC’s    3
    c    Explain the working of low frequency function generator using
        DAC              4
                                                                          SECTION: III

5    a    Define the terms i) memry cell ii) memory word iii) Access
        time     6
    b    With A CPU memory connection block diagram explain the
        steps that take place when the CPU writes to memory    6
    c    Explain the construction of basic SRAM memory cell    3

6    a    Two 16MB RAMs are used to build a RAM capacity of 32MB.
        Show the configuration and also state the address inputs for
        which the two RAMs will be active. The two RAMs have
        common i/o pins, a write enable i/p that is active low and a
        active high chip select i/p.       8
    b    Write a note on Cache memories    4
    c    mention the differences between fixed logic and
        programmable logic                           3

7    a    With neat block diagram explain the internal architecture of
        CPLD    8
    b    Implement the Boolean function Y= BC+ A C+ABC using
        PAL    5
    c    Mention the number of i/o lines in PAL device designated as
        PAL-16L8    2

                                         SECTION: IV

8    a     Explain the inside of a Microprocessor with a neat schematic    7
    b    Explain the following addressing modes i) Immediate
        ii) Indexed    04
    c    List the differences between RISC and CISC processors    4

9   a    List the differences between Microprocessor and
        Microcontroller                                                                   4

    b    Explain the inside of a Microcontroller with a neat schematic    7
    c    List the advantages and disadvantages of LCD    4


10    a    Explain the operation of seven segment display.    6

b Explain the operation dynamic scattering type of LCD. 6

c Write a note on multiplexed displays. 3

Model question paper of Analog Electronics of Diploma 3rd Sem - E & CE

DERARTMENT OF TECHNICAL EDUCATION

DIPLOMA COURSE IN ELECTRONICS & COMMUNICATION ENGG.

THIRD SEMESTER

MODEL QUESTION PAPER

ANALOG ELECTRONIC CIRCUITS

MAX MARKS:100 TIME :3Hrs

INSTRUCTIONS:-

1 SECTION-I IS COMPULSORY

2 ANSWER ANY TWO FULL QUESTIONS FROM EACH OF THE REMAINING SECTIONS.

SECTION I

1 A) FILL IN THE BLANKS WITH APPROPIRATE WORDS:- 1X5

I) The Ripple Factor of Bridge rectifier is ______________.

ii) The Cross over Distortion is overcome in _____________amplifier.

iii) The input impedence of an Ideal OPAMAP is ______________.

iv) PLL stands for ______________.

v) Oscillator uses _______________Feedback.

B) Write a note on IC Switching Regulators. 5

SECTION :II

2 a) Define the following terms

I) Ripple Factor. II)Regulation. 4

b) Explain block diagram regulated Power Supply. 6

c) Explain operation of Bridge Rectifier with a neat circuit diagram. 5

3 a) Explain the circuit of Series Voltage Regulator. 6

b) Explain the need for filters in rectifiers. 5

c) Mention the advantages of SMPS. 4

4a) Explain functional block diagram of IC 555 Tmer. 10

b) Explain the operation of Collpits Oscillator. 5

SECTION : III

5a) Define Biasing . Explain Voltage divider Bias with a neat Circuit diagram 6

b) Give the detailed classification of Amplifiers. 4

c) Explain the frequency response of RC coupled amplifiers. 5

6a) Explain the working of complementary push pull power amplifier with a neat circuit. 7

b) A cascaded voltage amplifier having Gains A_v1=10, A_v2=15, A_v3=20 Determine

overall Voltage gain and Gain in Decibels. 4

c) Explain double ended Clipper with a neat circuit diagram. 4

7a) Explain the operation of RC Differentiator and Integrator Circuit with waveforms. 10

b) List the application of Clippers and Clampers. 5

SECTION :IV

8a) Draw and explain block diagram of LM741 opamp. 5

b) List the ideal characteristics of opamp. 5

c) Explain the operation of Schmitt Trigger circuit using OPAMP. 5

9a) Define the following parameters w.r.t OPAMP

i) PSRR ii) CMRR iii) Gain-Bandwidth product

iv) Slew rate v) Input and Output Impedance. 10

b) Describe the Instrumentation Amplifier circuit. 5

10a) Explain the I st order Butterworth Active Low Pass using OPAMP. 5

b) Explain the circuit of Voltage to frequency Converter . 5

c) Explain the operation of PLL . 5

Model question paper of Analog Communications of Diploma 3rd Sem - E & CE

DERARTMENT OF TECHNICAL EDUCATION
DIPLOMA COURSE IN ELECTRONICS & COMMUNICATION ENGG.
THIRD SEMESTER

MODEL QUESTION PAPER

ANALOG COMMUNICATION

MAX MARKS:100 TIME :3Hrs

INSTRUCTIONS:-
1    SECTION-I IS COMPULSORY
2    ANSWER ANY TWO FULL QUESTIONS FROM EACH OF THE REMAINING
    SECTIONS.

SECTION I

1 A)    FILL IN THE BLANKS WITH APPROPIRATE WORDS:-    1X5
I)    The current at Resonance in Series Resonance circuit is____________.
ii)    The cut off frequency of LPF is given by ____________.
iii)    The Attenuator is a __________Network.
iv)    The characteristic impedance of transmission line is given by_________.
v)    The modulation index in FM is given by___________.

B)    Write a note on Equalizers.                                                            5

SECTION :II

2 a)    State Superposition theorem .    3
   b)    List the steps involved in simplifying the network using the Superposition
          theorem.    5
Define Resonance . Derive the expression for Resonant frequency of Parallel
       Resonance circuit.                               7

3 a)    Derive the expression for L and C of constant K – T section LPF.    7
b)    Design constant K - PI section HPF given fc= 2 KHz , Ro= 600 ohms.    5
c)        Find the relationship between Decibel and Neper.    3

4a)    Define Attenuator and mention its Applications.     4
b)    Design   T –type attenuator given attenuation =10 dB , Ro= 600 ohms.           5
c)          State Norton’s Theorem and write its Equivalent circuit.    6

SECTION :III

5a)    Describe the electrical model of Transmission line..     4
b)        Explain the following :
           (a) Reflection and (b) Standing waves in Transmission Line.      4
c)        Derive the Relationship between SWR and Reflection Coefficient.      7

6 a)   Define the following terms w.r.t Antenna :
               (a) Polarization,
               (b) Isotropic radiator
               (c) Radiation pattern
               (d) Directive gain
               (e) Directivity                                       10
b) Explain the working of broadside array.               5

7 a)     Explain Single stub matching .                       5
b)     Explain Ground wave propagation with relevant diagram.     6
   c)     Explain propagation in a mobile/portable environment .        4

SECTION : IV

8a)    Explain the need for Modulation.     4
b)    Explain amplitude modulator circuit using diode.         5
c)       Sketch the FM wave. Write mathematical expressions for the following:
              (a) Frequency deviation
              (b) Modulation index              6

9a)    Explain the working of AM Linear diode detector circuit.          5
b)        Explain the working of Foster Seeley discriminator .               6
c)    Explain the need for pre-emphasis and de-emphasis circuits.       4

10a)     Explain the working of High level AM transmitter with a neat block diagram. 8
    b)     Explain the working of FM receiver with Block Diagram.         7

Thursday, December 1, 2011

HTML Tutorial - 12

How to create a Horizontal frameset in Html Script ?

Solution :
Step 1: Go to Notepad.
Step 2: Copy the HTML script below to the notepad.

<html>

<frameset rows="25%,50%,25%">

<frame src="frame_a.htm" />
<frame src="frame_b.htm" />
<frame src="frame_c.htm" />

</frameset>

</html>
Step 3: Now save the file with .html format.
Step 4: Close the notepad and now open the saved file in your default browser .
That's it !
You will see like the below picture in your browser.

Vertical Frame sets

HTML Tutorial - 11

How to create a vertical frameset in Html Script ?

Solution :
Step 1: Go to Notepad.
Step 2: Copy the HTML script below to the notepad.

<html>

<frameset cols="25%,50%,25%">

<frame src="frame_a.htm" />
<frame src="frame_b.htm" />
<frame src="frame_c.htm" />

</frameset>

</html>

Step 3: Now save the file with .html format.
Step 4: Close the notepad and now open the saved file in your default browser .
That's it !
You will see like the below picture in your browser.

Vertical frame sets

Tuesday, November 29, 2011

HTML Tutorial - 10

How to create form with checkboxes and a submit button in Html Script ?

Solution :
Step 1: Go to Notepad.
Step 2: Copy the HTML script below to the notepad.

<html>
<body>

<form name="input" action="html_form_action.asp" method="get">
<input type="checkbox" name="Mobile" value="Nokia" /> I have a Nokia<br />
<input type="checkbox" name="Mobile" value="Samsung" /> I have a Samsung
<br /><br />
<input type="submit" value="Submit" />
</form>

<p>If you click the "Submit" button, the form-data will be sent to a page called "html_form_action.asp".</p>

</body>
</html>

Step 3: Now save the file with .html format.
Step 4: Close the notepad and now open the saved file in your default browser .
That's it !
You will see like the below picture in your browser to submit the form.

Click on the submit button to submit the data to a page called "html_form_action.asp"

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Wednesday, January 18, 2012

Friday, December 2, 2011

Thursday, December 1, 2011

Tuesday, November 29, 2011