Industrial Instrumentation Question Bank for Mid Sem Exam-1 (7th sem electrical)

Question Bank of Industrial Instrumentation

BE-IV 7^th sem Electrical

	Transducers:
1	What is Electrical transducer? Give its advantages. What are the basic requirements of a transducer?
2	Define static and dynamic characteristic of Instrumentation system. Enumerate the dynamic characteristic of measuring system. Explain any two.
3	Define transducer and classify transducers on different basis.
4	Define the following terms (1) Hysteresis   (2) Reproducibility  (3)  Resolution  (4)  Accuracy  (5)  Dead Zone         (6) Drift   (7)   Sensitivity  (8)  Gauge Pressure  (9)  Absolute Pressure  (10) Static Pressure
5	Explain the following characteristics of a Transducer. (i)Linearity           (ii) Resolution     (iii) Sensitivity (iv) Threshold (v) Repeatability (vi) Calibration     (vii) Hysteresis.
6	What is Transducer? Explain advantages of electrical transducer.
7	Explain difference between 1) Active transducer-Passive transducer.                                                           2) Primary transducer- Secondary transducer.
8	Differentiate between the following with suitable examples of each: (i) Active and Passive Transducer. (ii) Primary and Secondary Transducer (iii) Analog and Digital Transducer
	Temperature transducers, Pressure Transducers
1	Discuss use of Instrumentation Amplifier for signal conditioning.
2	List different types of thermocouples used for temperature measurement. Explain thermoelectric laws and the method for cold junction compensation in thermocouple
3	Give the merits, demerits and applications of (i) Platinum resistance thermometer (ii)Thermister (iii) Thermocouple for measurement of temperature.
4	Explain working principle of Thermocouple for temperature measurement.
5	Explain working of Radiation Pyrometer
6	Explain different laws of Thermo Couple.
7	How we can measure temperature above 1400 0 C. Explain any one method of measurement.
8	How temperature compensation is achieved in Thermistor?
9	Explain Black Body concepts for very high temperature measurements. Describe with neat diagram how disappearing filament type optical pyrometer can measure very high temperature. Mention it’s merit and demerits.
10	Draw and explain construction and working of RTD.
11	Discuss about the various types of Thermocouple with respect to their temperature vs e.m.f charecteristics
12	Explain construction and working of Semiconductor strain gauge. Also state its advantages
13	1) Write short note on Thermopile. 2) Application of Thermister.
14	State different pressure measurement techniques. Explain any one in detail.
15	State different vacuum pressure measurement techniques. Explain any one in detail.
16	Explain Macleod gauge and Ionization gauge for Vaccume pressure measurement.
17	Explain use of Thermocouple for Vaccume pressure measurement
18	How LVDT used for pressure measurement.?
19	Explain measurement of vacuum pressure using Pirani gauge.
20	Explain how bourdon tubes and Bellows can be used to measure Pressure?
21	Discuss capacitance based pressure measurement technique?
22	Discuss how strain gauge can be used to measure pressure?
23	Discuss about piezo electric pressure measurement.
24	Draw and explain working of Dead Weight Pressure Calibration Instrument.
25	Discuss principle of manometer for pressure measurement.
	Strain Gauge
26	Explain temperature compensation in Strain gauges using Dummy gauge.
27	What is Piezo-resistive effect? Explain the term Gauge Factor with respect to resistance strain gauge and obtain its expression in terms of poission’s ratio.
28	Write short note on semiconductor strain gauge and its advantages.
29	Discuss how strain gauge can be used to measure pressure?
30	A resistance strain gauge with a gauge factor of 2 is fastened to a steel rod, subjected to a stress of 500 Kg/cm2.If the modulus of elasticity of the steel is 2 × 106 Kg/cm2 ,calculate the change in resistance of the strain gauge element due to the applied stress.

Note : Displacement measurement questions are not there. You have to refer it on your own