The absolute measurement of resistance involves the measurement of...

 The absolute measurement of resistance involves the measurement of 

a) Length and time b) Length and mass c) Velocity d) Either (a) or (c)
by

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Answer :

 The absolute measurement of resistance involves the measurement of 


 d) Either (a) or (c)

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Which method can be used for absolute measurement of resistance?

Description : Which method can be used for absolute measurement of resistance? A. Ohm's law method B. Wheatstone bridge method C. Both A & B D. None of these. 

Last Answer : Wheatstone bridge method can be used for absolute measurement of resistance.

The absolute measurement of resistance is done by

Last Answer : The absolute measurement of resistance is done by Lorenz method.

Define absolute pressure and gauge pressure. State the different units for pressure 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

Pick out the correct statement. (A) Like internal energy and enthalpy, the absolute value of standard entropy for elementary substances is zero (B) Melting of ice involves increase in enthalpy and a decrease in randomness (C) The internal energy of an ideal gas depends only on its pressure (D) Maximum work is done under reversible conditions

Description : Pick out the correct statement. (A) Like internal energy and enthalpy, the absolute value of standard entropy for elementary substances is zero (B) Melting of ice involves increase in enthalpy and ... of an ideal gas depends only on its pressure (D) Maximum work is done under reversible conditions

Last Answer : (D) Maximum work is done under reversible conditions

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

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

The absolute percentage error in the computed discharge over a rectangular weir corresponding to an absolute error of 1.5 % in the measurement of head over the sill of the weir would be : (a) 1.5 (b) 2.25 (c) 2.5 (d) 3.75

Description : The absolute percentage error in the computed discharge over a rectangular weir corresponding to an absolute error of 1.5 % in the measurement of head over the sill of the weir would be : (a) 1.5 (b) 2.25 (c) 2.5 (d) 3.75

Last Answer : (b) 2.25

An ordinal scale is: a. The simplest form of measurement b. A rank-order scale of measurement c. A scale with equal intervals between adjacent numbers d. A scale with an absolute zero point e. A categorical scale

Description : An ordinal scale is: a. The simplest form of measurement b. A rank-order scale of measurement c. A scale with equal intervals between adjacent numbers d. A scale with an absolute zero point e. A categorical scale

Last Answer : b. A rank-order scale of measurement

The third stage of Resource Planning involves ? (a) Identification and inventory of resources. (b) Matching the resource development plan with overall National Development plan. (c) Evolving a planning structure endowed with appropriate technology. (d) Qualitative and quantitative estimation and measurement of the resources.

Description : The third stage of Resource Planning involves ? (a) Identification and inventory of resources. (b) Matching the resource development plan with overall National Development plan. (c) ... with appropriate technology. (d) Qualitative and quantitative estimation and measurement of the resources.

Last Answer : (b) Matching the resource development plan with overall National Development plan.

The term ’Evaluation’ and ’Assessment’ could be discriminated as follows Options: A) Assessment is limited to coverage achievement whereas evaluation is qualitative in character B) Evaluation is concerned with the effective aspects of achievement whereas assessment judges the cognitive aspects C) Evaluation involves the measurement as well as diagnosis of students’ attainments, whereas assessment is concerned with only scholastic attainments. D) Assessment is an attempt to measure the pupil as whole whereas evaluation is concerned with his achievement only

Description : The term 'Evaluation' and 'Assessment' could be discriminated as follows Options: A) Assessment is limited to coverage achievement whereas evaluation is qualitative in character B) Evaluation is ... an attempt to measure the pupil as whole whereas evaluation is concerned with his achievement only

Last Answer : C) Evaluation involves the measurement as well as diagnosis of students’ attainments, whereas assessment is concerned with only scholastic attainments. 

Measurement of a non -electrical quantity involves the following four subsystems:

Description : Measurement of a non -electrical quantity involves the following four subsystems:  a) amplifier block b) display block c) instrumentation block d) transducer block  The correct, sequence in which these block occur is  (1) d,a,c,b (2) d, c, a, b (3) a, c, b, d (4) a, b, c, d

Last Answer : Measurement of a non -electrical quantity involves the following four subsystems:  a) amplifier block b) display block c) instrumentation block d) transducer block  The correct, sequence in which these block occur is d,a,c,b

Name two methods for measurement of low, medium and high resistance. Give one advantage and one limitation of V- I method.

Description : Name two methods for measurement of low, medium and high resistance. Give one advantage and one limitation of V- I method.

Last Answer : Methods for measurement of low resistance:  1. Ammeter voltmeter method  2. Kelvin's bridge method  3. Ohm meter method  4. Potentiometer method  5. Digital/analog multi-meter ... must be infinity for perfectly accurate measurement which is not possible.  2. Connection errors.

Explain V- I method of measurement of medium resistance.

Description : Explain V- I method of measurement of medium resistance. 

Last Answer : In this method, use suitable source, ammeter and voltmeter and connect them as shown in the above diagram. Take reading of voltmeter and ammeter, then value of resistance = R = V/I Ω To minimise the error take 4 to 5 observation for the same resistance and take their average.

In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said to have the same hydraulic roughness, when they have equal values of (A) Relative roughness (B) Absolute roughness (C) Friction co-efficient for flows at equal Reynold number (D) All (A), (B) & (C)

Description : In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said ... co-efficient for flows at equal Reynold number (D) All (A), (B) & (C)

Last Answer : (C) Friction co-efficient for flows at equal Reynold number

The resistance of a conductor at absolute zero (OK) is a. zero almost b. infinite almost c. May increase or decrease d. None

Description : The resistance of a conductor at absolute zero (OK) is a. zero almost b. infinite almost c. May increase or decrease d. None

Last Answer : zero almost

A 68-year-old male who underwent a repair of an abdominal aortic aneurysm 5 days ago, develops tachycardia, tachypnea, hypotension with cool, pale, mottled cyanotic extremities. He is agitated and complains of shortness of breath. Which of the following statement(s) is/ are correct concerning his diagnosis and management? a. Myocardial ischemia secondary to preexisting coronary artery disease is most likely the underlying cause of this problem b. Invasive hemodynamic monitoring with a Swan-Gantz catheter will demonstrate a low cardiac output, a high systemic vascular resistance, and elevated cardiac filling pressures c. The use of morphine sulphate and nitrates should be part of the initial management d. The primary pharmacologic treatment involves the use of moderate doses of inotropic ag

Description : A 68-year-old male who underwent a repair of an abdominal aortic aneurysm 5 days ago, develops tachycardia, tachypnea, hypotension with cool, pale, mottled cyanotic extremities. He ... use of moderate doses of inotropic agents e. Afterload reduction with nitroprusside is absolutely contraindicated

Last Answer : Answer: a, b, d Intrinsic cardiogenic shock results from failure of the heart as an effective pump. Coronary artery disease is the most common cause of myocardial ... hemodynamic monitoring. Infusion of afterload-reducing agents can be administered in conjunction with inotropic support

Which of the following statements concerning learning is the least acceptable? Options: A) Learning involves the acquisition of habits, knowledge and attitudes B) Learning involves new ways of overcoming obstacles and attaining goals C) Learning involves the weakening of the resistance to the passage of a neutral impulse D) Learning represents progressive change in behaviour

Description : Which of the following statements concerning learning is the least acceptable? Options: A) Learning involves the acquisition of habits, knowledge and attitudes B) Learning involves new ways of ... resistance to the passage of a neutral impulse D) Learning represents progressive change in behaviour 

Last Answer : D) Learning represents progressive change in behaviour 

Show that the percentage error in the measurement of resistance by a metre bridge is minimum when the null point is near about the centre of the wire.

Description : Show that the percentage error in the measurement of resistance by a metre bridge is minimum when the null point is near about the centre of the wire.

Last Answer : Show that the percentage error in the measurement of resistance by a metre bridge is minimum when the null point is ... B. 50 cm C. 80 cm D. 100 cm

The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Description : The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Last Answer : ANSWER: A

Instruments of Measure The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Description : Instruments of Measure The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Last Answer : ANSWER: A

The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Description : The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Last Answer : ANSWER: A

The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Description : The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Last Answer : ANSWER: A

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

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

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

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

Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the __________ of a fibre. (A) Electrical resistance (B) Thermal conductivity (C) Strength (D) None of these

Description : Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the __________ of a fibre. (A) Electrical resistance (B) Thermal conductivity (C) Strength (D) None of these

Last Answer : (A) Electrical resistance

What is the equation for resistance measurement of PT 100 thermocouple?

Description : What is the equation for resistance measurement of PT 100 thermocouple? 

Last Answer : °C = (R-100) / 0.39  

A transmission line is said to have distributed constants of inductance, capacitance, and resistance along the line. What units of measurement are used to express these constants?

Description : A transmission line is said to have distributed constants of inductance, capacitance, and resistance along the line. What units of measurement are used to express these constants?

Last Answer : Inductance is expressed in micro henrys per unit length, capacitance is expressed in picofarads per unit length, and resistance is expressed in ohms per unit length.

In order to make an accurate measurement as possible, the internal resistance of a voltmeter must be

Description : In order to make an accurate measurement as possible, the internal resistance of a voltmeter must be

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Describe the procedure for the measurement of earth resistance by using earth tester.

Description : Describe the procedure for the measurement of earth resistance by using earth tester.

Last Answer : Measurement of earth resistance by using earth tester:  It is connected to earth electrode E, whose resistance is to be measured, and the other spike P and R, as shown in the ... , the deflection of the pointer will indicate directly resistance in ohm of the earth electrode under test. 

Describe with neat circuit diagram the measurement procedure of earth resistance for an installation.

Description : Describe with neat circuit diagram the measurement procedure of earth resistance for an installation. 

Last Answer : Following procedure (Method) for testing of earth pit resistance with necessary diagrams. 1) Earth Tester : i) Three point method ii) Four point method 2) By Potential drop method 3) Water ... of that earthing pit. In this test the accuracy is less but electrical rods are not required.  

The bridge most suited for measurement of a four-terminal resistance in the range of 0.001 Ohm to 0.1 Ohm

Description : The bridge most suited for measurement of a four-terminal resistance in the range of 0.001 Ohm to 0.1 Ohm (A) Wien’s bridge (B) Kelvin double bridge (C) Maxwell’s bridge (D) Shering Bridge

Last Answer : The bridge most suited for measurement of a four-terminal resistance in the range of 0.001 Ohm to 0.1 Ohm (A) Wien’s bridge (B) Kelvin double bridge (C) Maxwell’s bridge (D) Shering Bridge

State the meaning of absolute instrument and secondary instrument.

Description : State the meaning of absolute instrument and secondary instrument. 

Last Answer : Absolute instruments:   These instruments read the quantity under measurement indirectly i.e. in terms of deflection, degrees and meter constant. The actual value under measurement can be calculated ... of operation (b) Depending upon permissible percentage error. (c) Depending upon application.

Write difference between absolute & secondary instrument.

Description : Write difference between absolute & secondary instrument.

Last Answer : Absolute Instrument Secondary Instrument 1. These give magnitude of quantity in terms physical constants of instruments 1. These give reading directly of the quantity at the time of ... Raleigh current balance. 6. Examples - ammeter, voltmeter, amperehour meter, wattmeter etc.

Why in electric motor or generator heating due to current involves dissipation of electrical energy?

Description : Why in electric motor or generator heating due to current involves dissipation of electrical energy?

Last Answer : In electric motor or generator heating due to current involves dissipation of electrical energy because as the current increases there will be I2R losses. More current flow means more the heat will be generated and as the temperature of conductor increase its resistance increases.