Well type Manometer   The well type monometer is widely used because of having only one leg.  The main difference between a U-tube manometer and a well type manometer is that the U-tube is substituted by a large well such that the variation in the level in the well will be negligible and instead of measuring a differential height, a single height in the remaining column is measured. It consist of a large diameter vessel with one side connected to very small size tube, so that the zero level moves very little when the pressure is applied. The area of well is much greater than the area of tube. In general this ratio is greater than 10. Accuracy is achieved by setting zero level of well at zero level of scale before each reading of table. The sensitivity of such monometer is good. Well Manometer Principle Well Manometer same as the U-tube except for the reservoir on the high-pressure side. It is sometimes called a single column gauge. The manometer consists of a metal well of large cro

  monomers Manometer is a device used to measure pressure at a single or multiple points in a single or multiple pipelines, by balancing the fluid column by the same or another column of fluid. Manometers work by the principle that a column of fluid in a tube will rise or fall until its weight is in equilibrium with the pressure differential between the two ends of the tube. For a pressure difference P is the height difference h between the level of liquid in the two halves of the tube A and B, is given by the equation P = pgh, where p is the density of the fluid in the tube. U-Tube Manometer “A U-tube manometer, in which differential pressure is measured as the difference 'h' between the high-pressure reading and the low-pressure reading, multiplied by the density of the liquid in the tube.” The difference in height of the liquid represents the applied pressure. In U-tube manometer we measure the pressure as: P= sp wt * height( fluid)- sp wt * height( Hg) Introduction

  Top 50  Bio- Medical Instrumentation  Objective Questions and Answers 1. Source of Bioelectric potential is a) mechanical b) electronic c) electric d) ionic Answer: ionic 2. Principal ion that is not involved with the phenomena of producing cell potentials is  a) potassium b) chlorine c) hydrogen d) sodium Answer: hydrogen 3. ________ is the relatively static membrane potential of quiescent cells. a) resting membrane potential b) half-cell potential c) cell potential d) action potential Answer: resting membrane potential 4. The variation of the electrical potential associated with the passage of a pulse along the membrane of a muscle cell or a nerve cell is called a) resting potential b) half cell potential c) action potential d) muscle potential Answer: action potential 5.  After a cell is stimulated, a finite period of time is required for the cell to return to its pre-stimulus state, period is known as a) refactory period b) regain period c)  regenerative period d) restoration per

  Foetal Monitoring Instruments Cardiotocograph 1. In data recorders, during replay, the tape is run at ________ to achieve rapid manual or automatic scanning of ambulatory records. a) 80 times of recording speed b) 70 times of recording speed c) 60 times of recording speed d) 50 times of recording speed Answer: 60 times of recording speed 2. Which CPU has an overall system control responsibility? a) Control b) Acquisition c) Control and timing d) Acquisition and display Answer: Control and timing 3. Who provides an excellent review of ambulatory cardiac event recorders? a) Handelsman b) Benz c) Alfonso d) Friesen Answer: Benz 4. Which of the following type of systems are not available for ambulatory ECG monitoring? a) Holter monitors b) Event Recorders c) Time Recorders d) Implantable Loop Recorders Answer: Time Recorders 5. In the data recording, the normal speed of sub miniature tape recorder is ___________ a) 3 cm/s b) 2 cm/s c) 3 mm/s d) 2 mm/s Answer: 2 mm/s 6. Full form of P-FCB

  Oximeters Multiple Choice Questions Oximeters 1. What is used to detect foetal heart movements in broad beam transducer? a) Quartz crystal b) Piezo electric crystal c) Topaz crystal d) Berlinite crystal Answer: Piezo electric crystal 2. What is maximum ultrasound intensity of narrow beam transducer? a) 15 mW/cm2 b) 20 mW/cm2 c) 25 mW/cm2 d) 30 mW/cm2 Answer: 25 mW/cm2 3. Which transducer is arranged in the shape of a clover leaf so that it provides a large area of illumination? a) piezo-electric b) ultrasonic c) array d) pressure Answer: ultrasonic 4. When it is possible to detect multiple pregnancies? a) 10th week b) 12th week c) 15th week d) 20th week Answer: 20th week 5. The transmitting crystal emits 40° divergent beam so that the beam covers an area of approximately _____ cm diameter. a) 10 b) 20 c) 30 d) 40 Answer: 10 6. Blood flow detectors based on Doppler shift start detecting foetal pulses as early as in which week of pregnancy? a) tenth b) eleventh c) twelfth d) ninth Answ

  Telemedicine Technology Essential Parameters for Telemedicine 1. What is the temperature at which the lower junction in thermocouple is maintained? a) 0 K b) 273 K c) -327 K d) -273 K Answer: 273 K 2. What force is generated when two wires of different material are joined together at either end, forming two junctions which are maintained at a different temperature? a) chemical reactive b) electro-motive c) thermo-motive d) mechanical Answer: thermo-motive 3. __________has the widest range of temperature measurement. a) RTD b) Mercury thermometer c) Thermocouple d) Thermistor Answer: Thermocouple 4. The full form of RTD is _________________ a) resistive thermal detector b) resistance temperature detector c) resistance temperature device d) reluctance thermal device Answer: resistance temperature detector 5. Which of the following quantity is measured by Thermister? a) pressure b) displacement c) temperature d) height Answer: temperature 6. Which of the following option is the correct