Tuesday, 12 June 2012

TRADE INSTRUCTOR GRADE II

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NAME OF POST : TRADE INSTRUCTOR GRADE II – (BIO MEDICAL ENGINEERING)
DEPARTMENT : TECHNICAL EDUCATION
CATEGORY NO. 187/2007
EXAMINATION DATE :03/08/2012 FRIDAY
TIME : 08.00 AM to 09.15 AM

Syllabus:  An Objective Type Test (OMR Valuation) based on
the qualification prescribed for the post. 
Main Topics:-
1.  Electrical Technology and Basic Electronics    
2.  Electronic Circuits
3.  Digital Electronics and Micro Processors   
4.  Bio-Medical sensors and Transducers
5.  Analytic and Diagnostic Equipments
6.  Therapeutic and Imaging Systems
7.  Hospital Engineering Systems



FURTHER DETAILS REGARDING MAIN TOPICS



1.   Electrical Technology and Basic Electronics
Network theorems – Kirchoff’s Law – Thevenins Theorem –
Superposition Theorem – Maximum Power Transfer Theorem –
Transformers – Types of Transformers – step up, step down,
auto transformer, pulse transformer, toroidal, IFT. DC
Machines, Electromagnetic dynamic induction – split rings,
principle of DC generator – Types of DC Machines –
Characteristics of Generators, armature reaction, functions of
commutator, DC Motor, DC Motor starters, Alternators,
Synchronous  motor, Stepper motor, Servo motors. Induction
motor – 3phase induction motors, star connected and delta
connected.
Passive components.  Resistors- Fixed, Variable –
Potentiometre- logarithmic, linear, preset – single and multi
turn, Capacitors – polarized, non polarized   Variable capacitors
– Inductors – self and mutual inductance.  Types of inductors.
Active components:  diodes, Semiconductors:- doping – P N
Junction – diodes, Characteristics – Zener diodes.  Varactor
diodes, Tunnel diodes.  Rectifiers –Half wave and full wave
rectifier – Bridge rectifier.  Voltage multipliers – Wave shaping
circuits
   2.    Electronic Circuits
Transistors – NPN, PNP, Transistor configurations – CB, CE and CC
– Characteristics of CB and CE – UJT Transistor.  Bias Cicuits DC
Load line – operating point – biasing circuits – single stage and
multi stage amplifiers, RC coupled , transformer  coupled  and
direct coupled – Tuned amplifiers – Audio power amplifiers,
Voltage Amplifier and Power Amplifier – feed back amplifiers,
Oscillator circuits  RC oscillators – LC oscillators – Hartley and
colpitts oscillators, crystal oscillators and signal generators &
wave shaping circuits.  Multivibratrors –  astable multivibrators
using transistors.   Schmitt trigger – JFETs and MOSFETs,  Opamp-parametres of op-amp- CMRR, slew rate – Op amp circuits –
inverting amplifier, non inverting amplifier, voltage follower,
summing amplifier, adder, subtractor, differential amplifier,instrumentation amplifier, Zero crossing detector, peak detector,
precision rectifiers, integrator, differentiator, active filters,
voltage regulators.
   3.    Digital Electronics and Microprocessors
Number systems – logic gates – Logic families  SSI, MSI, LSI,
VLSI, - Transistor.  Transistor logic, Emitter coupled logic, high
threshold logic – CMOS Combinational Logic Circuits half adder,
full adder, half subtractor, full subtractor – Parallel and Serial
adders – multiplexer/ demultiplexer encoders and decoders –
Sequential logic circuits flip flops, Flip flop ICs, Shift registers,
Johnson Counter –Binary counters – memories, semi conductor
memory –non volatile memories, volatile memories – DAC & ADC
Microprocessors and microcontrollers:  8085, 8086,
architecture, instruction set addressing modes, 8051
Microcontroller – Features Architecture of 8051 – instruction set –
addressing – Interrupts – Study of peripheral chips – PP1 8255 –
Timer/Counter 8253 – Keyboard/display interface 8279 -
Interfacing
   4.        Biomedical sensors & transducers :
Transducers & Sensors – Transducers – active & passive.
Chemical transducers – pH electrodes, measurement of PO2,
measurement of PCO2 – Bio sensors electrolytic sensors – optical
sensors – fibre optic sensors.  Transducers – Temperature
transducers - Thermo resistive transducers, thermo electric p-n
junction, chemical thermometry.  Displacement transducers –
potentiometric – resistive strainguages – inductive displacement
– capacitive displacement transducers.  Strain guage and LVDT
transducers, capacitive and peizo electric type.
   5.     Analytic and Diagnostic Equipments :
Clinical lab instruments – Beer Lamberts Law.  Design of
monochromators, detection systems and amplifiers.
Photoelectric colorimeter, visible and UV spectrophotometers,
flame photometer and Mass spectrophotometers , NMR spectro
photometers, chromatographs, pH metre, conductivity metre,
Haemoglobin metre, Blood gas analysers, auto analysers
Oximetre, Blood  Pressure monitoring Pulse and respiratory
sensors, Measurement of blood flow – Electromagnetic andDoppler flow metres, Blood cell counters
ECG machines – Generation of ECG signals,  Instrumentation of
an ECG machine, Common faults in the ECG recordings,
Microprocessor based ECG instruments, Ambulatory ECG
recordings, stress testing protocols and systems, Vector
Cardiograph, Foetal monitoring systems, EMG – Details of EMG
recorders, applications.  EEG – measurement principles, details of
EEG recorders and applications, Evoked response instruments
  6.   Therapeutic and Imaging  Systems
Defibrillators – energy requirements – synchronous operations,
Electrical stimulators, Nerve and muscle stimulators – ultrasonic
stimulators,  Surgical diathermy – Shortwave diathermy and micro wave
diathermy, Lithotripsy, Bio-medical lasers, Endoscopes – Fibre
optics, Angioplasty, Infusion pumps – peristaltic pumps, Radio
therapy – Radiography (X-ray and CT) X-Rays – Generation,
properties, X-ray machine, Computer Tomography, Angiography
– Ultrasound imaging, Ultrasound – Echocardiography and
echoencephalography.  Doppler Ultrasound.  NMR imaging –
principle,  Components of NMR system – magnets, Nuclear
imaging, Gamma camera – isotopes, radioactive decay, half life
period, PET and SPECT 
   7.    Hospital  Engineering  Systems
Electrical power system -  substations – emergency supply
systems.  Voltage stabilizers, generators,  Electrical shock
hazards – physiological effect of electricity –micro shock and
macro shock.  Safety standard and safety methods – grounding,
isolated power system – ground fault interrupter.  Hospital gas
supply systems – centralised  supply of air,  oxygen, nitrous
oxide and vacuum.  Sterilizing systems – autoclaves – gas,
chemical, radiation, plasma sterilizers.  Incubators and
incinerators.  Hospital lighting  systems – surgical lights, shadow
less lamps, cold light sources and fibre optic  light fountains.
Wheel chair,  operation table,  Anaesthesia  machine.


NOTE: - It may be noted that apart from the topics detailed above,
questions from other topics prescribed for the educational
qualification of the post may appear in the question paper. There
is no undertaking that all the topics above may be covered in the
question paper.

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