Medical Diagnosis with Chemical Tests 1. The function of the _________ is to continuously and simultaneously push fluids, air and gases through the analytical chain. a) sampling unit b) proportioning pump c) manifold d) dialyzer Answer: proportioning pump 2. ________ is not part of the manifold. a) Transmission tubing b) Pump tubes c) Platter d) Plastic tubes Answer: Plastic tubes 3. In the sampler, the range of the sample size is from _______ a) 0.1 to 8.5 ml b) 1 to 8.5 ml c) 0.85 to 0.1 ml d) 8.5 to 10 ml Answer: 0.1 to 8.5 ml 4. The blood pressure within the glumerular capillaries is _________ of mercury. a) 80 mm b) 70-80 mm c) 90 mm d) 70-90 mm Answer: 70-90 mm 5. Which of the following is not the electrolyte? a) Bicarbonate b) Potassium c) Magnesium d) Sodium Answer: Magnesium 6. In the proportioning pump, two speed pump has a non-synchronous _____ rpm motor. a) 10 rpm b) 30 rpm c) 45 rpm d) 15 rpm Answer: 45 rpm 7. In the sampling control, one complete rotation of the plate t

  Audiometry Mechanism of Hearing 1. What is the unit of dB? a) watts per sq cm b) dyne per sq cm c) unit less d) watts per cm Answer: unit less 2. Name the bone that rests upon the lower end of the cochlea and passes the vibrations directly into the fluid within. a) malleus b) stapes c) incus d) hammer Answer: stapes 3. Decibel expresses the logarithm of the ratio between two sound _________ a) intensities b) powers c) pressures d) intensities, powers and pressures Answer: intensities, powers and pressures 4. The major function of the middle ear is ____________ a) to transfer movements of the air in the outer ear to the cochlea b) to transfer movements of the air in the outer ear to the auditory nerves c) to transfer movements of the air in the outer ear to the tympanic membrane d) to transfer movements of the air in the outer ear to the fluid-filled chambers of the inner ear Answer: to transfer movements of the air in the outer ear to the fluid-filled chambers of the inner ear 5. Spe

  Biomedical Recorders Electrocardiography 1. To achieve optimum performance and to enable the relationship of change in resistance with the volume of the cell to hold good, it is recommended that the ratio of the aperture length to the diameter of the aperture should be __________ a) 75:1 b) 0.75:100 c) 0.75:1 d) 0.5:10 Answer: 0.75:1 2. The volume of blood within the dialyzer is known as ___________ a) secondary volume b) quarterly volume c) priming volume d) residual volume Answer: priming volume 3. Which of the following amplifier circulatory is employed to reduce the hum noise generated by the power supply in the ECG circuit? a) band pass filters b) high pass filters c) notch filters d) low pass filters Answer: notch filters 4. The branch of medicine that deals with the provision and use of artificial devices such as splints and braces is _________ a) prosthetics b) orthotics c) laproscopic d) augmentative communication Answer: laproscopic 5. The frequency range of ECG is ________

  Recording System General Considerations for Signal Conditioners 1. ________ IC is a variable negative voltage regulator. a) 7912 b) 7905 c) LM337 d) LM317 Answer: LM337 2. Which of the following voltage regulator IC gives a variable positive voltage? a) LM317 b) LM337 c) 7805 d) 7812 Answer: LM317 3. Devices that pass the signal from its source to the measurement device without a physical or galvanic connection by using transformer, optical or capacitive coupling technique are called? a) filters b) rectifiers c) bridges d) isolaters Answer: isolaters 4. Strain gauges are resistance devices in a Wheat stone bridge configuration _________ a) which does not require bridge completion circuitry and an excitation source b) which requires bridge completion circuitry and an excitation source c) which neither requires bridge completion circuitry nor an excitation source d) which requires bridge completion circuitry but does not an excitation source Answer: which requires bridge completion cir

Physiological Transducers Classification of Transducers 1. Unwanted signal at the output due either to internal sources or to interference is called ________ a) offset b) noise c) drift d) threshold Answer: noise 2. Change is signal over long period of time is called _______ a) noise b) offset c) hysteresis d) drift Answer: drift 3. Accuracy is ______ a) ability of the transducer or sensor to see small differences in reading b) ability of the transducer or sensor to see small differences in reading c) algebraic difference between the indicated value and the true or theoretical value of the measurand d) total operating range of the transducer Answer: algebraic difference between the indicated value and the true or theoretical value of the measurand 4. The ability of the sensor to see small differences in reading is called ______ a) resolution b) drift c) offset d) linearity Answer: resolution 5. Which type of transducer requires energy to be put into it in order to t

  Heat Transfer 1. Units for thermal conductivity a) J/kg.K b) J/mol.K c) J.ohm/sec.K2 d) W/m.K Answer: W/m.K 2. The ratio of energy transferred by convection to that by conduction is called a) Stanton number b) Nusselt number c) Biot number d) Preclet number Answer: Biot number 3. Air at 20° C blows over a plate of 50 cm x 75 cm maintained at 250° C. If the convection heat transfer coefficient is 25 W/m2 °C, the heat transfer rate is a) 215.6 kW b) 2156 kW c) 2.156 kW d) 21.56 Kw Answer: 2.156 kW 4. If the body is at thermal equilibrium, then the a) Emissivity = absorptivity b) Emissivity > absorptivity c) Emissivity < absorptivity d) None of the above Answer: Emissivity = absorptivity 5. The body which absorbs all radiations incident upon it, is called as a) Black body b) White body c) Opaque body d) Transparent body Answer: Black body 6. In radiative heat transfer, a gray surface is one a) which appears gray to the eye b) whose emissivity is independent of wavelength c) which