Previous year question paper for MI (B-TECH automobile engineering 6th)

Basic Statistical Concepts : Types of Measured Quantities (Discrete and Continuous), Central Tendency of Data,

Mode, Median, Arithmetic Mean, Best Estimate of true Value of Data, Measures of Dispersion, Range, Mean

Deviation, Variance, Standard Deviation, Normal Distribution, Central Limit Theorem, Significance Test, Method of

Least Squares, Graphical Representation and Curve Fitting of Data.

Instruments and Their Representation: Introduction, Typical Applications of Instrument Systems, Functional

Elements of a Measurement System, Classification of Instruments, Standards and Calibration

Static and Dynamic Characteristics of Instruments: Range and span, accuracy and precision, calibration,

hysteresis and dead zone, sensitivity and linearity, threshold and resolution; speed of response, lag, fidelity and

dynamic error, dead time and dead zone. Zero, first and second order systems and their response to step, ramp

and sinusoidal input signals.

Errors in Measurement: Sources of errors, systematic and random errors; statistical analysis of test-data,

probable error and probability tables, ejection of test data; curve fitting, error propagation; Design and planning of

experiments and report writing.

Sensors and Transducer: Introduction, Analog and Digital Transducers, Electromechanical; Potentiometric,

Inductive and reluctance type, Electromagnetic, Electrodynamic, Eddy Current, Magnetostrictive, Variable

Inductance, Linearly Variable Differential Transformer, Variable Capacitance, Piezo-Electric Transducer and

Associated Circuits, Unbonded and Bonded Resistance Strain Gages. Strain Gage Bridge circuits, Temperature

Compensation, Balancing and Calibration, Opto-Electrical Transducers, Photo Conductive Transducers, Photo

Voltaic Transducers, Digital Transducers, Frequency domain transducer, Vibrating string transducer, Data

Acquisition Systems, Data processing, Data Display and Storage. Modern Automotive Instrumentation, Study of

automotive sensors and actuators

Position, displacement, and velocity Measurement: Introduction, Relative motion Measuring

Devices, Electromechanical, Optical, Photo Electric, Moire-Fringe, Pneumatic, Absolute Motion Devices.

Force, Acceleration and Torque Measurement : Seismic Devices, Spring Mass & Force Balance Type,

Calibration, Hydraulic Load Cell, Pneumatic Load Cell, Elastic Force Devices, Separation of Force

Components, Electro Mechanical Methods, Strain Gage, Torque Transducer, Toque Meter.

Pressure Measurement: Moderate Pressure Measurement, Monometers, Piezo Transducer, Dynamic

Effects of Connecting Tubing, High Pressure Transducer, Low Pressure Measurement, Calibration and Testing,

Flow Measurement: Quantity Meters, Positive Displacement Meters, Flow Rate Meters, Variable Head

Meters, Variable Area Meters, Rotameters, Pitot-Static Tube Meter, Drag Force Flow Meter, Turbine Flow

Meter, Electronic Flow Meter, Electro Magnetic Flow meter. Hot-Wire Anemometer.

Temperature Measurement : Introduction, Measurement of Temperature, Non Electrical Methods, Solid Rod

Thermometer, Bimetallic Thermometer, Liquid-in-Glass thermometer, Pressure Thermometer, Electrical Methods,

Electrical Resistance Thermometers, Semiconductor Resistance Sensors (Thermistors), Thermo–Electric Sensors,

Thermocouple Materials, Radiation Methods (Pyrometry), Total Radiation Pyrometer, Selective Radiation

Pyrometer