II B.Tech II Semester Supplementary Examinations, April/May 2005 ELECTRICAL AND ELECTRONICS MEASUREMENTS ( Common to Electronics & Instrumentation Engineering and Electronics & Control Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Explain about the loading effect in measurements and its effect on the accuracy of measurement. How this can be prevented? (b) A voltmeter with a sensitivity of 1000Ω/v is being used, to measure the voltage across a 40 kΩ resistor. The voltage is measured on 50v range. Determine the error in the reading due to loading effect. 2. (a) Explain in detail the measurement of power using electrodynamometer. (b) Write short notes on watt-hour meter. 3. Draw the block diagram of a dual-slope digital volt meter and explain how it is advantageous to use dual slope A/D converter in DUM? 4. (a) How do you measure R, L and C using electronic instruments? (b) How do you perform all-electronic capacitance measurements where the measurement is not performed by a comparison? Explain one method in detail. 5. (a) Explain the working operation of triggered time base for an oscilloscope. (b) Why horizontal and vertical deflections are required for an oscilloscope. 6. (a) How does the sampling oscilloscope increase the apparent frequency response of an oscilloscope? (b) What precautions must be taken when using a sampling oscilloscope? 7. (a) Discuss in detail about AF square wave generator. (b) Explain the importance of Wide band amplifier in the block diagram of a signal generator. 8. (a) Explain an automated frequency counter using block diagram. (b) If the internal time base of a frequency counter is 15MHz, what frequency range is best measured by a period measurement and why. ?????
NR221001 II B.Tech II Semester Supplementary Examinations, April ...
error in the reading due to loading effect. 2. (a) Explain in detail the measurement of power using electrodynamometer. (b) Write short notes on watt-hour meter.
(a) Apply the Bresenham's algorithm to turn up pixels along the line segment determined by points (5,7) and (12,11). (b) Give parametric equation of a line ...
8.a) What are the constraints on ROC for various classes of signals in z transform? b) Find the z transform of the sinusoidal signal XT (n)=sin (bn)*uT (n).
(b) Explain about piezo electric transducer? [8] · 8. Write short notes on: · (a) LVDT · (b) Gain and bandwidth of single stage amplifier? (c) Barkhuasen criterion?
1.a) Explain the two waltmeter method of measuring power in 3 S systems (star and ... Discuss in detail about ABCD and hybrid parameters of two-port networks.
COMPUTER GRAPHICS. (Mechatronics). Time: 3 hours ... (a) Entire picture three times as large. (b) Counter clock-wise rotation about the origin, by 90 degrees.
(b) Design a full adder circuit and implement it with only NOR Gate. 5. ... (b) Develop a synchronous three bit up/down counter with a grey code sequence.
Describe the schematic arrangement of a thermal power station and explain the ... (a) Mention the advantages and disadvantages of Nuclear power plants.
Explain load bearing properties of articular cartilage in synovial joints. [16] · 8. Describe the function of ligaments and tendons in normal locomotion. [8+8] · *****.
Write notes on any TWO of the following: · a) · Collison resolution techniques in Hashing b). Spanning trees c). Traversals of a binary tree. @@@@@. OR.
(a) What are the machinery used in a sugar industry? (b) What are units operated by steam in sugar industry. 6. Write on: (a) Raw material requirements for ...
Pascal. 4. Explain different parameter passing and evaluation techniques followed. Demonstrate these concepts with suitable examples. 5.a) What are the ...
(a) Explain the principle and measurement of temperature using a thermocouple. (b) What are ... Explain the principle of an ultrasonic Doppler blood flow meter.
(a) Job order production and batch production system. (b) Mass production and flow production. [4+4+4+4] · 7. DefineâCritical pathâ, âslack timeâand âDummy ...
(b) One bag contains 4 White balls and 3 black balls and a second bag contains 3 ... [8+8] · 3. (a) The amount of bread ( in hundreds of pounds) X that a certain ...
(c) Explain sign conventions of heat and work in thermodynamics. [5+5+6] · 3. (a) State and explain second law of thermodynamics. (b) Define and explain ...
b=4.318 cm is fed by a 4 GHz carrier from a coaxial cable. Determine if a · TE10 mode will be propagated. If so calculate the phase velocity and group · velocity.
(c) An amplifier with voltage gain of 60 decibels uses 0.05 of its output voltage in · negative feedback. Calculate the gain of the feedback amplifier. [6+6+4].
Determine the length of the wire needed if the diameter · of the wire is 0.25 mm. Assuming that the temperature coefficient of resis- · tance of the wire is constant, ...
(b) Draw the block schematic of 4x1 MUX and give its truth table. [6] · 6. (a) Design a full adder with minimum number of NAND gates. [8] · (b) Draw the logic ...