An unshielded moving iron voltmeter is used to measure the voltage in an AC circuit. The stray DC magnetic field having a component along the axis will be (1) unaffected (2) decreased (3) increased (4) either decreased or increased depending on the direction of the DC field
Last Answer : An unshielded moving iron voltmeter is used to measure the voltage in an AC circuit. The stray DC magnetic field having a component along the axis will be either decreased or increased depending on the direction of the DC field
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Apr 29, 2018
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anonymous
What equipment is used to measure voltage?
Last Answer : Voltmeter is used to measure voltage.
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275 views
2 answers
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Mar 10, 2018
by
anonymous
Last Answer : Unit of voltage is volt denoted by capital V .
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Sep 20, 2017
by
anonymous
A Pyrheliometer is an instrument to measure : (A) temperature of solar photovoltaic cell (B) intensity of direct solar radiation at normal incidence (C) intensity of indirect solar radiation (D) efficiency of a solar photovoltaic cell
Last Answer : A Pyrheliometer is an instrument to measure : intensity of direct solar radiation at normal incidence
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175 views
1 answer
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Apr 29, 2018
by
anonymous
Piezoelectric Transducer is used to measure (1) displacement (2) resistance (3) current (4) temperature
Last Answer : Piezoelectric Transducer is used to measure displacement
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192 views
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Apr 29, 2018
by
anonymous
Which of the following can be used to measure the capacitance of a capacitor? A) Rheostat B) Schering bridge C) Wheatstone bridge D) None of these
Last Answer : Which of the following can be used to measure the capacitance of a capacitor? A) Rheostat B) Schering bridge C) Wheatstone bridge D) None of these
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2.8k views
1 answer
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Apr 29, 2018
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anonymous
Last Answer : To measure a resistance with the help of a potentiometer it is not necessary to standardise the potentiometer.
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223 views
1 answer
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Mar 21, 2018
by
anonymous
Last Answer : It is required to measure the true open circuit e.m.f. of a battery. The best device is D.C. potentiometer.
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284 views
1 answer
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Mar 21, 2018
by
anonymous
Last Answer : Integrating instruments are those which measure the total quantity of electricity delivered in a particular time.
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395 views
1 answer
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Mar 21, 2018
by
anonymous
What type of meter is used to measure current?
Last Answer : Ammeter
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2.7k views
3 answers
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Mar 10, 2018
by
anonymous
Last Answer : Yes it can...
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1 answer
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Sep 10, 2017
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anonymous
Last Answer : Voltmeter is used to measure voltage in a circuit.Ohmmeter is used to measure the resistance of a component in a circuit.
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92 views
2 answers
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Sep 10, 2017
by
anonymous
A control system having unit damping factor will give (1) Oscillatory response (2) Undamped response (3) Critically damped response (4) No response
Last Answer : 1
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1.3k views
2 answers
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May 1, 2018
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anonymous
How to Measure Optical Distortion
Last Answer : How to Measure Optical Distortion Optical Distortion is defined as a defect in an optical system. In this defect, the magnification of lines causes lines that are typically straight and sitting at an ... to measure optical illusions and also how the illusion is affecting the way you see a specimen.
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1 answer
How to Measure a Strain Gauge
Last Answer : How to Measure a Strain Gauge There are several ways to measure strain. The most common is to use a strain gauge. In laymen's terms, a strain gauge is a device whose electrical ... who supply all the necessary strain gauges and materials from connection tags, to binding adhesives and training.
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1 answer
How to Read a Tape Measure
Last Answer : How to Read a Tape Measure Introduction Reading a tape measure is fairly simple. At some point, you may need to learn this method. Everyone is presented with the need for this device at one time or ... hand. Take extra care and check the measurement 2 or 3 times to be sure that they are correct.
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1 answer
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May 14, 2021
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anonymous
How to Measure Temperature
Last Answer : How to Measure Temperature Whether you're measuring body temperature or dealing with high-temperature substances in laboratories, you need a very reliable way to measure heat. Thermometers and temperature ... or from an object. With these steps, you can measure temperature quickly and accurately.
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1 answer
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May 14, 2021
by
anonymous
How to Measure For Replacement Windows
Last Answer : How to Measure For Replacement Windows You could have any number of reasons for wanting to replace your windows. Windows that are older are often far less energy efficient than the newer vinyl ... probably even give you a rebate for choosing energy efficient windows to replace your old windows.
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1 answer
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May 14, 2021
by
anonymous
How to Measure For a Garage Door
Last Answer : How to Measure For a Garage Door At some point you will probably need a new garage door. Before getting the new door, however, you will need to take some measurements. This article explains how to measure ... a new garage door you needn't worry if the garage door you buy will fit into the opening.
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1 answer
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May 14, 2021
by
anonymous
How to Measure Tire Sizes
Last Answer : How to Measure Tire Sizes Buying a new set of tires is just like buying shoes: you have to make sure that your tires fit perfectly on the wheel. Tires that are too small or too big for your ... , you can buy a set of tires designed and custom-fit to make your driving experience safe and secure.
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May 11, 2021
by
anonymous
Draw venture meter and write steps to measure flow rate.
Last Answer : Venturi meter consists of three sections that is converging section, throat section and diverging section. The flow is introduced to the meter through the inlet with diameter D' . The inclined angle ... to 15o . Flow rate is proportional to the square root of the differential pressure.
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1 answer
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Jun 26, 2020
by
anonymous
Explain the term reactive power. Why it is sometimes essential to measure reactive power?
Last Answer : Reactive power: The reactive power (Q) is defined as the product of voltage(V), current (I) and sine of angle between voltage(V) and current( I) Therefore Reactive power Q = V I ... power so that corrective measures can be taken accordingly to maintain systems power factor near to the unity.
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Sep 6, 2018
by
anonymous
List any four measure knobs on front panel on CRO.
Last Answer : Knobs on front panel of CRO: 1. Power ON- OFF 2. Intensity control 3. Focus control 4. Astigmatism control 5. Volt/Div control 6. Vertical position control 7. Invert 8. Horizontal position control 9. Synchronization. 10. Channel selection.
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Sep 6, 2018
by
anonymous
‘PMMC instrument is not suitable to measure AC quantity’. State the reason.
Last Answer : The direction of force exerted on moving coil depends on the direction of current flowing through moving coil. If the direction of magnetic field is kept constant, it produces unidirectional torque if the current is ... on the coil in one cycle to zero. Hence the meter cannot read A.C. quantities.
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364 views
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Sep 6, 2018
by
anonymous
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Name the method used to measure following resistances:- (i) Low resistance (ii) Medium resistance (iii) Insulation resistance (iv) Earth resistance.
Last Answer : Following are the methods used to measure resistances:- (i) Low resistance: 1.Voltmeter-Ammeter Method 2. Kelvin's Double bridge Method (ii) Medium resistance: 1.Voltmeter-Ammeter Method 2. ... of Charge Method (iv) Earth resistance : 1. Fall of Potential Method 2. Earth tester
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Sep 6, 2018
by
anonymous
A _________ is used to measure the stator % winding temperature of the generator. (A) Thermocouple (B) Pyrometer (C) Resistance thermometer (D) Thermometer
Last Answer : A Resistance thermometer is used to measure the stator % winding temperature of the generator.
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3.4k views
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May 8, 2018
by
anonymous
An open-circuit test on a transformer is conducted primarily to measure?
Last Answer : The open-circuit test in a transformer is used to measure
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624 views
2 answers
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Mar 19, 2018
by
anonymous
How do you measure the speed of a motor?
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0 answers
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Mar 15, 2018
by
anonymous
What are ways we can measure the flow of electrons?
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Mar 14, 2018
by
anonymous
How do you measure power factor?
Last Answer : P= 1.83*V*I*COS@ where P is power V is voltage I is current COS @ is P.F COS@= P/(1.83*V*I) in other way cos @ = true power/apparent power
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96 views
1 answer
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Mar 10, 2018
by
anonymous
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What does an electric meter measure?
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Mar 10, 2018
by
anonymous
How to Install a Home HVAC Unit
Last Answer : How to Install a Home HVAC Unit Installing a two zone home heating, ventilating and air-conditioning (HVAC) system is not for a casual do-it-yourselfer but most aspects of the system past ... have oriented their wire coloring system. It should be done carefully to prevent any possibility of harm.
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1 answer
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May 14, 2021
by
anonymous
Define resistivity. State its unit.
Last Answer : Resistivity can be defined as the resistance of a conducting material per unit length with unit area of cross section. Its unit is ohm/meter
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1 answer
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Aug 4, 2019
by
anonymous
What is the smallest unit of a compound with the same chemical characteristics?
Last Answer : The molecule is the smallest unit of a compound with the same chemical characteristics.
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Jun 29, 2019
by
anonymous
A) Watt B) Volts C) Farad D) Ampere
Last Answer : Correct answer: D) Ampere
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Jun 28, 2019
by
anonymous
Options: A) WATT B) AMPERE C) VOLTS D) OHM
Last Answer : Correct Answer: A) WATT
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Jun 28, 2019
by
anonymous
THE UNIT OF RELUCTANCE IS
Last Answer : The si unit of reluctance is Ampere-turn/weber
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1 answer
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Define the following terms related to tariff: (i) Connected load (ii) Unit consumed (iii) Fixed charges (iv) Electricity Tax
Last Answer : (i) Connected load It is the sum of the power ratings (Watts or kW or MW) of all devices and machines existing (installed) in the premises of consumer. It is used to decide the ... a percentage of the total electricity bill which includes all amounts that go to the electricity supply agency.
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Sep 22, 2018
by
anonymous
Write the purpose of coal and ash handling unit. Also write different activities that arc carried out in this unit.
Last Answer : Purpose of coal and ash handling unit :- To transport coal from coal storage to power plant. A large quantity of ash about 10 to 30 % produced in furnace, the removal of ash from boiler furnace ... disposed off. Various methods of disposal of ash: Mechanical system. Pneumatic system.
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56 views
1 answer
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Sep 8, 2018
by
anonymous
Define admittance and state its unit.
Last Answer : Admittance is defined as the ability of the circuit to carry (admit) alternating current through it. OR It is the reciprocal of impedance Z. i.e Admittance Y = 1/Z. Unit: Its unit is siemen (S) or mho (Ʊ).
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Sep 7, 2018
by
anonymous
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What is the SI unit of conductivity ?
Last Answer : The SI unit of conductivity Siemens/m.
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Sep 2, 2018
by
anonymous
What does double integration of a unit step function lead to? A) A doublet B) A ramp C) An impulse D) A parabola
Last Answer : What does double integration of a unit step function lead to? A) A doublet B) A ramp C) An impulse D) A parabola
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Jun 18, 2018
by
anonymous
Which unit holds data permanently? (A) Input unit (B) Secondary storage unit (C) Output Unit (D) Primary Memory Unit
Last Answer : Which unit holds data permanently? (A) Input unit (B) Secondary storage unit (C) Output Unit (D) Primary Memory Unit
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170 views
1 answer
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May 8, 2018
by
anonymous
Which of the following are components of Central Processing Unit (CPU)? (A) Arithmetic logic unit, Mouse (B) Arithmetic logic unit, Control unit (C) Arithmetic logic unit, Integrated Circuits (D) Control Unit, Monitor
Last Answer : Which of the following are components of Central Processing Unit (CPU)? (A) Arithmetic logic unit, Mouse (B) Arithmetic logic unit, Control unit (C) Arithmetic logic unit, Integrated Circuits (D) Control Unit, Monitor
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May 8, 2018
by
anonymous
The unit heat rate characteristic of a thermal power unit shows : (A) Heat input per kWh of output versus the megawatt output of unit (B) Heat input per kW of output versus the megawatt output ... hour output of unit (D) Heat input per kW of output versus the megawatt hour output of unit
Last Answer : The unit heat rate characteristic of a thermal power unit shows : Heat input per kWh of output versus the megawatt output of unit
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Apr 30, 2018
by
anonymous
The unit of speed regulation of a governor is : (A) Hz (B) Hz/MW (C) Hz/MVA (D) rpm/MVAR
Last Answer : The unit of speed regulation of a governor is : Hz/MW
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226 views
1 answer
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Apr 29, 2018
by
anonymous
Unit commitment is a procedure in which : (A) Scheduling of total generation is done economically (B) Optimal combination of units in a system is chosen at any given time (C) ... are selected for financial economy (D) Most efficient machines are selected for minimum reactive power loss
Last Answer : Unit commitment is a procedure in which : Optimal combination of units in a system is chosen at any given time
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1 answer
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Apr 29, 2018
by
anonymous
Which of the following is the SI unit for admittance? A) Ohm B) Henry C) Farad D) Siemens
Last Answer : Which of the following is the SI unit for admittance? A) Ohm B) Henry C) Farad D) Siemens
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227 views
1 answer
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Apr 29, 2018
by
anonymous
Which of the following is an example of SI derived unit? A) Capacitance (Farad) B) Time (second) C) Luminous intensity (Candela) D) All the above
Last Answer : Which of the following is an example of SI derived unit? A) Capacitance (Farad) B) Time (second) C) Luminous intensity (Candela) D) All the above
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1 answer
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Apr 29, 2018
by
anonymous
Which of the following is a unit of magnetic flux? A) Weber B) Maxwell C) Both A and B D) None of these
Last Answer : Which of the following is a unit of magnetic flux? A) Weber B) Maxwell C) Both A and B D) None of these
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103 views
1 answer
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Apr 29, 2018
by
anonymous
