Description : State some elements of flow measurement.
Last Answer : Orifice, Venturi tubes, flowrator (rotameter) etc.
Description : Pick up the correct statement from the following: (A) Topology describes the geometric characteristic of objects which do not change under transformations and are independent of any coordinate system ... The three elements of topology are adjacency, containment, and connectivity (D) All of these
Last Answer : Answer: Option D
Description : What Are The Primary Elements Usedfor Flow Measurement?
Last Answer : The primary elements used for flow measurement are: 1. Orifice Plate. 2. Venturi tube. 3. Pitot tube. 4. Annubars. 5. Flow Nozzle. 6. Weir & Flumes.
Description : What are the primary elements used for flow measurement?
Last Answer : The primary elements used for flow measurement are: • Orifice Plate. • Venturi tube. • Pitot tube. • Annubars. • Flow Nozzle. • Weir & Flumes.
Description : Electrostatic type instruments are mainly used for measurement of: a) Heavy currents b) Low currents c) Low voltages d) High voltages
Last Answer : Ans: D
Description : When a resistor is used as a shunt and is connected in parallel with a meter movement coil, it will provide _____________. A. a measurement of circuit resistance B. an increased accuracy of approximately 1.5 percent C. an extended meter range D. none of the above
Last Answer : Answer: C
Description : In order to increase its range of measurement, a resistance would be placed in series with which of the following instruments? A. DC voltmeter B. DC ammeter C. frequency meter D. power factor meter
Last Answer : Answer: A
Description : What is meant by tan-delta measurement?
Last Answer : It is the tan of the angle between the capacitive current and the total current. As the value of tan delta increases the resistive component of the current in increasing. Hence it shows a weak insulation.
Description : What is the equation for resistance measurement of PT 100 thermocouple?
Last Answer : °C = (R-100) / 0.39
Description : What is the purpose of rotor AC Impedance measurement?
Last Answer : Periodic measurement of rotor impedance using an AC power supply is another means of detecting the presence of shorted turns in a rotor winding. Impedance measurement is more sensitive than the ... single shorted turn opposes the MMF of the entire coil, thus greatly reducing the reactance.
Description : What is the purpose of tan-delta measurement?
Last Answer : Insulation in electrical system has parameters such as Capacitance, Die-electric loss, and Power factor. By detecting the changes in these parameters failures can be revealed. In this tan-delta ... insulation. This detects moisture and void in the insulation. This indicates amount of ionization.
Description : What is the necessity of shaft voltage measurement?
Last Answer : It is to observe insulation of bearing 6 & 7 and hydrogen seal assembly. It requires minimum leakage current (<100mA) through bearings and shaft seals to avoid pitting of bearings. ... >100mA, clean the insulation provided between bearing pedestal and seal housing with earth.
Description : What should be the frequency of measurement of earth resistivity?
Last Answer : As per IS: 3043, 1987, measurement of earth resistivity should be carried out annually or biannually and value should be recorded.
Description : What is the instrument name used for accurate measurement of IP?
Last Answer : Infra red spectro photometer.
Description : Draw a neat sketch and explain the use of CT and PT for measurement of power in a single-phase circuit?
Last Answer : If wattmeter of proper range is not available or if voltage and current ranges are high we can usr CT and PT of suitable ratio. Connect the CT and PT as shown in figure. The reading of wattmeter can be multiplied by the ratio to get the actual power.
Description : What are the limits of vibration measurement for motors?
Last Answer : 50 microns for displacement and 5 mm/second for velocity.
Description : In dielectric measurement, the dielectric loss is proportional to a) F b) V c) I d) Vsqr
Last Answer : Ans: Vsqr
Description : The two watt meters measurement the ratio of two meter readings is –(1-sqrt3):( 1+sqrt3) then the power factor is a) 1 b) 0.866 c) 0.707 d) 0
Last Answer : Ans: 0.707
Description : State how pressure measurement can be done using Dead weight tester.
Last Answer : The handle is fully drawn out and the oil is allowed to enter in the cylinder (i.e. gauge and piston) The weight to be measured is placed on the platform. Now the handle is turned ... of the area of the piston and the pressure indicated on the gauge is equal to the weight under measurement.
Description : Define absolute pressure and gauge pressure. State the different units for pressure measurement.
Last Answer : Definition: Absolute pressure: Absolute pressure is defined as actual total pressure including atmospheric pressure actin On a surface. PAbsolute= PAtmospheric + PGauge Gauge pressure: Gauge pressure is defined ... mm of mercury column (blood pressure) inches of water Barmillibar (weather) Torr
Last Answer : of the human body Blood pressure Of measurement Instrument Sphygmomanometer.
Description : Which of the following statements concerning monitoring techniques in the intensive care unit are true? A. Pulmonary artery and pulmonary capillary wedge pressure readings should be made ... clinical conditions not associated with tissue hypoxia, including liver disease and hypermetabolic states.
Last Answer : Answer: BD DISCUSSION: Many different monitoring techniques may be used to assess the adequacy of therapy for shock. The pulmonary artery catheter can provide important hemodynamic and oxygen ... also be seen with liver disease, toxin ingestion, and hypermetabolic states not associated with shock
Description : An instrument commonly used for the measurement of atmospheric pressure is known as A. Manometer B. Barometer C. Calorimeter D. Potentiometer
Last Answer : Barometer
Description : Working principle of manometer comprises of balancing a coloumn of liquid against the pressure to be measured. Inclined tube manometer is especially used for the measurement of __________ pressure. (A) Small differential (B) Atmospheric (C) Absolute (D) Gage
Last Answer : (A) Small differential
Description : A Venturimeter cannot be used for the direct measurement of (A) Datum difference in the stretch of pipe-flow (B) Pressure difference in the flow through pipeline (C) Friction loss in pipe flow (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is __________ mm. (A) < 4 (B) > 4 (C) > 12.5 (D) < 10
Last Answer : (C) > 12.5
Description : For shear strength, triaxial shear test is suitable because (A) It can be performed under all three drainage conditions (B) Precise measurement of the pore pressure and volume change during the test is possible (C) Stress distribution on the failure plane, is uniform (D) All the above
Last Answer : (D) All the above
Description : A triaxial shear test is preferred to direct shear test, because (A) It can be performed under all three drainage conditions with complete control (B) Precise measurement of pore pressure and change in ... possible (C) Stress distribution on the failure plane, is non uniform (D) None of these
Last Answer : Answer: Option A
Description : When the balloon on the distal tip of a pulmonary artery catheter is inflated and a pressure is measured, the measurement obtained is referred to as the a) pulmonary artery wedge ... Cardiac output is determined through thermodilution involving injection of fluid into the pulmonary artery catheter.
Last Answer : a) pulmonary artery wedge pressure. When the balloon is inflated, the tip of the catheter floats into smaller branches of the pulmonary arty until it can no longer be passed and the pressure is recorded, reflecting left atrial pressure and left ventricular end-diastolic pressure.
Description : According to the classification of hypertension diagnosed in the older adult, hypertension that can be attributed to an underlying cause is termed a) secondary. Secondary hypertension may be caused by a tumor of ... mm Hg and the diastolic measurement is normal or near normal (less than 90 mm Hg).
Last Answer : a) secondary. Secondary hypertension may be caused by a tumor of the adrenal gland (e.g., pheochromacytoma).
Description : Operation of McLeod gauge used for low pressure measurement is based on the principle of (A) Gas law (B) Boyle's law (C) Charles law
Last Answer : Answer: Option B
Description : Pitot tube is used for measurement of (A) Pressure (B) Flow (C) Velocity (D) Discharge
Last Answer : Answer: Option C
Description : Thermocouples are used for the measurement of (A) humidity. (B) pressure. (C) temperature. (D) density.
Last Answer : (C) temperature.
Description : Explain differential pressure measurement method as indirect method for level measurement.
Last Answer : Differential pressure measurement as indirect method for level measurement: Closed vessel: Differential pressure (DP) transmitters used for liquid level application measure hydrostatic pressure head. In a closed ... side of the DP and the low pressure side is vented to atmosphere.
Description : Give the names of any four pressure gauges used for pressure measurement.
Last Answer : Pressure gauges used for pressure measurement : Bellows pressure gauge, diaphragm pressure gauge, strain gauge, Force balance pressure gauge (Dead weight pressure gauge) and Bourdon tube pressure gauge.
Description : Sketch and describe pressure measurement system for 800 mm pressure, that contain Bourdon tube and LVDT.
Last Answer : Diagram: Explanation: The pressure measurement using bourdon tube and LVDT is shown in above figure. In this the, the bourdon tube act as primary transducer and LVDT which follows ... This set up is used for measurement of pressure which is converted into electrical signal by LVDT.
Description : Sketch DC signal conditioning circuit for pressure measurement using strain gauge. Justify it.
Last Answer : Diagram: Figure: DC signal conditioning circuit for pressure measurement using strain gauge Where, Rg= strain gauge resistance. Explanation: In order to measure strain with ... millivolts output per volt input. The Wheatstone circuit is also well suited for temperature compensation.
Description : Draw Bourdon tube with LVDT setup for pressure measurement.
Last Answer : Bourdon tube with LVDT setup for pressure measurement.
Description : Explain the working of diaphragm for pressure measurement.
Last Answer : Capacitive transducers are used for the measurement of pressure by converting the pressure into a displacement. The displacement is sensed by a capacitive transducer using a differential arrangement's ... shows a 1800 phase shift. This voltage may be amplified by an emitter follower amplifier.
Description : How strain gauge is used for pressure measurement, explain?
Last Answer : strain gauge: - strain gauge is used for pressure measurement as one of the arm of a wheatstones' bridge, the pressure is applied to the strain gauge through diaphragm elastic pressure sensor.
Description : What is capsule? How it is used for pressure measurement?
Last Answer : A capsule is made up of two identical corrugated diaphragms so as to form a leak- proof chamber and also referred to as an aneroid. The fluid under measurement is entered in to ... one side to communicate the displacement. The opening is provided in other diaphragm to apply the pressure.