Description : What electrical quantity is measured by a watt-hour meter?
Last Answer : Energy.
Description : What electrical quantity is measured by a wattmeter?
Last Answer : Power
Description : What electrical quantity is measured by an ohmmeter?
Last Answer : Resistance.
Description : How is a voltmeter connected to the circuit to be measured?
Last Answer : In parallel.
Description : What type of meter is shown and what is the value of the quantity being measured for each meter in figure 1-51?
Last Answer : (A) Megger (megohmmeter), infinity; (B) Wattmeter, 9.5 kilowatts (9,500 watts). (C) Watt-hour meter, 2.693 megawatt-hours 2,693 kilowatt-hours) (2,693,000 watt-hours).
Description : What type of meter is shown and what is the value of the quantity being measured for each meter in figure1-49?
Last Answer : a. A dc ammeter, 90 mA dc b. A dc voltmeter, 200 V dc c. An ac voltmeter, 4.6 V ac d. An ohmmeter, 400 ohms
Description : Which physical quantity is measured in ‘siemens’? (1) Electric potential (2) Electrical conductance (3) Magnetic flux (4) Refractive index
Last Answer : (2) Electrical conductance Explanation: The Siemens is the unit of electric conductance, electric susceptance and electric admittance in the International System of Units (SI).
Description : Which quantity (voltage or current) determines the intensity of an electrical shock?
Last Answer : Current.
Description : In swept-frequency testing the impedance of a transmission line, what electrical characteristic is actually being measured?
Last Answer : Swr on the transmission line.
Description : What are the physical quantities measured with voltmeter and ammeter ?
Last Answer : : The voltage difference between two points of a circuit is measured with a voltmeter. And the flow rate of an electric circuit is measured with an ammeter.
Description : The emf of a battery is 4.0 V and its internal resistance is `1.5 Omega`. Its potential difference is measured by a voltmeter of resistance `1000 Omeg
Last Answer : The emf of a battery is 4.0 V and its internal resistance is `1.5 Omega`. Its potential ... percentage error in the reading of emf shown by voltmeter.
Description : Consider the diagram shown below. A Voltmeter of resistance `150 Omega` is connected across A and B. The potential drop across B and C measured by vol
Last Answer : Consider the diagram shown below. A Voltmeter of resistance `150 Omega` is connected across A and B. The potential ... 29 B. 27 V C. 31 V D. 30 V
Description : Conductor resistance may be INDIRECTLY measured by using a/an _____________. A. voltmeter only B. ammeter only C. voltmeter and an ammeter D. ohmmeter only
Last Answer : Answer: C
Description : The RPM of an AC generator can be measured with a/an _____________. A. ammeter B. voltmeter C. vibrating reed meter D. synchroscope
Description : If the approximate voltage to be measured in a circuit is not known, you should _____________. A. use the lowest voltage range on the voltmeter B. connect the meter in series with the circuit C. only have to calibrate the meter before using it D. use the highest voltage range on the voltmeter
Last Answer : Answer: D
Description : When troubleshooting most electronic circuits, 'loading effect' can be minimized by using a voltmeter with a/an ___________________. A. input impedance much greater than the impedance across which the voltage ... sensitivity of less than 1000 ohms/volt D. sensitivity of more than 1000 volts/ohm
Last Answer : Answer: A
Description : Pressure is measured by-----? A. barometer (Answer) B. Voltmeter C. Lactometer
Last Answer : A. barometer (Answer)
Description : Electric current is measured by (1) Voltmeter (2) Anemometer (3) Commutator (4) Ammeter
Last Answer : (4) Ammeter
Description : Electric current is measured using which of the following instrument ? (1) Ammeter (2) Voltmeter (3) Anemometer (4) Wattmeter
Last Answer : Ammeter
Description : The voltage of a circuit is measured by a voltmeter having input impedance comparable with the output impedance of the circuit thereby causing error in voltage measurement. This error may be called as_________.
Last Answer : error caused by misuse of instrument
Description : When taking a voltage measurement, which lead of the voltmeter should you connect to the circuit first?
Last Answer : Ground.
Description : On what range should you set the voltmeter prior to taking a voltage measurement?
Last Answer : Highest.
Description : If an ac voltmeter is connected between the S2 and S3 windings on a TX, at what two rotor positions should the voltmeter read maximum voltage?
Last Answer : . 150º and 330º
Description : What should a voltmeter read when a TX is set on coarse zero?
Last Answer : Approximately 37 volts.
Description : What is the advantage of using a battery test set versus a voltmeter to test batteries?
Last Answer : A battery test set will test batteries under load conditions.
Description : What is the general function of the differential voltmeter?
Last Answer : To compare an unknown voltage with a known reference voltage and indicate the difference in their values.
Description : Why would you use a hook-on voltmeter instead of a multimeter?
Last Answer : To measure current safely and easily (with no need to disconnect the wiring of the circuit).
Description : Why should you always use the highest range when connecting a voltmeter to a circuit?
Last Answer : To prevent excess current through the meter movement.
Description : What method is used to allow a voltmeter to have several ranges?
Last Answer : The use of resistors in series with the meter movement.
Description : What is voltmeter sensitivity?
Last Answer : It is an indication of the resistance of the meter expressed in ohms per volt. The total resistance of the meter is the sensitivity multiplied by the full-scale voltage.
Description : How is the loading effect of a voltmeter kept to a minimum?
Last Answer : A voltmeter must have a high resistance compared to the circuit being measured.
Description : What is the loading effect of a voltmeter?
Last Answer : The connection of a voltmeter adds a resistance in parallel with the circuit changing the total circuit resistance, and loads the circuit.
Description : What term is used to express the sensitivity of a voltmeter?
Last Answer : Ohms per volt
Description : When making voltage measurements in a high-resistance circuit, you should always use a voltmeter with what relative value of resistance?
Last Answer : . High.
Description : What are the advantages of using a differential voltmeter?
Last Answer : Accuracy and high input impedance.
Description : By mistake, a voltmeter is connected in series and an ammeter is connected in parallel, with a resistance in an electrical circuit. What will happen t
Last Answer : By mistake, a voltmeter is connected in series and an ammeter is connected in parallel, with a ... be damaged D. Only the voltmeter will be damaged
Description : Conversion of heat into electrical er is achieved by using – (1) Ammeter (2) Hydrometer (3) Voltmeter (4) Thermocouple
Last Answer : (4) Thermocouple Explanation: Thermoelectric generators convert thermal energy into electricity by using heat from the body - or any object with a temperature gradient - as their energy source. ... energy into electricity. Bismuth telluride and its alloys are commonly used in thermocouples.
Description : On some electrical generating equipment one outboard bearing pedestal is insulated from the bedplate. To check this insulation with the machine assembled you should use a____________. A. ohmmeter with the ... C. megohm meter with the machine running D. voltmeter and ampmeter with the machine running
Last Answer : Answer: B
Description : A current carrying conductor making an electrical contact with a wiring metal conduit is indicated by a _____________. A. low switchboard wattmeter reading B. reading of 1.0 on the power factor meter C. high switchboard voltmeter reading D. totally darkened switchboard ground-detecting light
Description : A switchboard, for a AC electrical distribution system, will be provided with which of the following components? A. Frequency meter. B. Ammeter C. Voltmeter D. All of the above
Description : Conversion of heat into electrical er is achieved by using : (1) Ammeter (2) Hydrometer (3) Voltmeter (4) Thermocouple
Last Answer : Thermocouple
Description : Explain errors in product of measured quantity.
Last Answer : Explain errors in product of measured quantity.
Description : Explain errors in sum and in difference of measured quantity.
Last Answer : Explain errors in sum and in difference of measured quantity.
Description : What is a measurement? How is measured quantity expressed?
Last Answer : What is a measurement? How is measured quantity expressed?
Description : Explain errors due to power (index) of measured quantity.
Last Answer : Explain errors due to power (index) of measured quantity.
Description : A moving system force in analog instruments which ensures that the deflection of the pointer for a given value of measured quantity always has the same value
Last Answer : controlling force
Description : An instrument in which the magnitude of the measured quantity is indicated by means of pointer.
Last Answer : analog instrument
Description : Material price, mix, usage and revised quantity variances are measured on _______ basis, whereas material yield variance is measured on _______ basis. A. Output, Input B. Output, Output C. Input, Output D. None of the above
Last Answer : C. Input, Output
Description : The sub-variance of material usage variance, known as Material mix variance is measured as A. Total standard cost - Total actual cost B. Standard cost of revised standard mix - Standard cost of ... unit price) * Actual quantity used D. (Standard quantity - Actual quantity) * Unit standard price
Last Answer : B. Standard cost of revised standard mix - Standard cost of actual mix
Description : In a CRO, the quantity to be measured is applied across (1) focusing electrodes (2) cathode (3) Y-plates (4) X-plates
Last Answer : C