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Answer :

An instrument transformer is used to extend the range of induction instrument.

Related questions

Last Answer : If the instrument is to have a wide range, the instrument should have Logarithmic scale.

Description : State the advantages of instrument transformer in using for extension of range of meters. 

Last Answer : Advantages of instrument transformer: 1. Extension of instrument range is possible. 2. Isolation of instruments from high voltage side. 3. Power loss is less as compared to shunts and multipliers. 4 ... measurement. 5. It is economical method of range extension. 6. Increases in safety of operator.

Description : The original jurisdiction of the Supreme Court of India does not extend to which of the following matters? (1) between the Government of India and one or more States (2) between the ... (4) dispute arising out of any treaty, agreement, covenant, engagement, sand or other similar instrument

Last Answer : (4) dispute arising out of any treaty, agreement, covenant, engagement, sand or other similar instrument Explanation: Any dispute between the Union and one or more states comes under the exclusive original jurisdiction of the Supreme Court of India.

Description : How to extend the range of wireless router?

Last Answer : First, I recommend trying the signal at different points in the garage. If the wireless adapter is USB-based this is trivially easy, but if it's a PCI adapter (inside the computer) then you might need an ... , and it might be worthwhile for other reasons too- I don't see any reason not to try it.

Description : Does airport express work well to extend range of a wireless network?

Last Answer : I use an airport extreme base station with several expresses to provide good, fast and very secure access to a mixed PC/Apple/Unix/Linux network. It works extremely well.

Description : Can I extend the range of my wireless network with a spare wireless router?

Last Answer : Depends on the type of router. You’re looking for a feature called “bridge” mode. http://www.dd-wrt.com/wiki/index.php/Wireless_Bridge

Description : Extend wifi range on macbook pro?

Last Answer : Borrowing the neighbours’ WiFi, are we? ;) Perhaps http://www.macwireless.com/ has something that could help you boost the range, I’ve heard positive things about them.

Description : Can I buy a cable to extend the range of my wireless mouse's transmitter?

Last Answer : There is not a cable that can extend the range of a wireless mouse.

Description : The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and the stray fields are  A) Perpendicular B) Parallel C) Inclined at 60" D) Inclined at 30°

Last Answer : The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and the stray fields are Parallel 

Description :  In the case of an instrument reading of 8.3 V with a 0 to 150 voltmeter having a guaranteed accuracy of 1% full scale reading, the percentage limiting error is   (A) 1.810% (B) 0.181% (C)12.45% (D) 0.0018%

Last Answer :  In the case of an instrument reading of 8.3 V with a 0 to 150 voltmeter having a guaranteed accuracy of 1% full scale reading, the percentage limiting error is 12.45%

Description : A moving coil instrument has a resistance of 10 W and gives full scale deflection when carrying a current of 50 mA. To measure current upto 100 A, we will have to connect • 10 W resistance in series • 10 W resistance in parallel • 10/1999 W resistance in series • 10/1999 W resistance in parallel

Last Answer : A moving coil instrument has a resistance of 10 W and gives full scale deflection when carrying a current of 50 mA. To measure current upto 100 A, we will have to connect 10/1999 W resistance in parallel

Description : 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 

Description : In a PMMC instrument, the damping provided is :  (A) air damping (C) eddy current damping (B) fluid damping (D) magnetic damping using a magnet

Last Answer : In a PMMC instrument, the damping provided is : eddy current damping 

Description : A PMMC instrument has FSD of 100 μA and a coil resistance of 1 kΩ. To convert the instrument into an ammeter with full scale deflection of 100 mA, the required shunt resistance is (A) 1 Ω (B) 1.001 Ω (C) 0.5 Ω (D) 10 Ω

Last Answer : A PMMC instrument has FSD of 100 μA and a coil resistance of 1 kΩ. To convert the instrument into an ammeter with full scale deflection of 100 mA, the required shunt resistance is 1.001 Ω

Description : Eddy current damping cannot be used for moving iron instrument because

Last Answer : Eddy current damping cannot be used for moving iron instrument because the presence of a permanent magnet required for such purpose would affect the deflection and hence the reading of the instrument

Description : Identify the instrument that does not exist (A) Dynamo-meter type ammeter (B) Dynamo-meter type wattmeter (C) Moving-iron voltmeter (D) Moving-iron wattmeter

Last Answer : Identify the instrument that does not exist (A) Dynamo-meter type ammeter (B) Dynamo-meter type wattmeter (C) Moving-iron voltmeter (D) Moving-iron wattmeter

Last Answer : Electrostatic instrument uses the principle of the variation of Capacitance with the voltage.

Last Answer :  In a gravity controlled instrument, the deflection angle is proportional to sine inverse of measurand.

Last Answer :  In a moving coil instrument, the deflecting torque is proportional to Current.

Last Answer : The repeat accuracy of an instrument can be judged from its standard deviation of error.

Last Answer : The error of an instrument is normally given as a percentage of full-scale value.

Last Answer : An instrument to be used for measurement and control should preferably have Linear output and fast response

Last Answer : For the indicating instrument the preferred damping condition is  a damping coefficient of 0.8 to 1.

Last Answer : A moving coil instrument is used as an ohmmeter. The indicating scale of the meter will be Hyperbolic.

Last Answer : The sensitivity of an instrument is ratio of the change in the magnitude of the output to the corresponding change in the magnitude of the input.

Description :  The percentage limiting error, in the case of an instrument reading of 8.3V with a 0 to 150V voltmeter having a guaranteed accuracy of 1% full-scale reading is

Last Answer :  The percentage limiting error, in the case of an instrument reading of 8.3V with a 0 to 150V voltmeter having a guaranteed accuracy of 1% full-scale reading is 18.10%.

Last Answer : The instrument having its deflection depends upon average value is:  Rectifier type

Last Answer : Megger is an instrument used for the measurement of: High resistance and insulation resistance

Last Answer : An instrument that is capable of measuring only dc is: Moving coil

Description : PMMC instrument gives uniform scale because:

Last Answer : PMMC instrument gives uniform scale because: It uses spring control and The deflection torque is proportional to the instrument current.

Last Answer : The damping torque must operate only when the moving system of the indicating instrument is: Actually moving

Last Answer : The reliability of the instrument refer to: Degree to which repeatability continues to remain within specified limits

Last Answer : The deflection of hot-wire instrument depends on: RMS value of the alternating current

Last Answer : In a dynamo-meter type of moving coil instrument a swamping resistance is provided inorder to: Provide equal time constant for moving coil and fixed coil, when used for ac measurement

Last Answer : A PMMC instrument can be used as a fluxmeter by: Removing the control spring

Last Answer : Hysteresis of an instrument means: The change in the same reading when input is first increased and then decreased.

Last Answer : Instrument transformers are potential transformers, current transformers.

Last Answer : The rectifier instrument is not free from frequency error.

Last Answer : A multirange instrument has multiple shunt or series resistances inside the meter.

Last Answer : The gravity controlled instrument has crowded scale because current is proportional to sine of deflection angle.

Last Answer : If an instrument has cramped scale for larger values, then it follows logarithmic law.

Description : The ratio of maximum displacement deviation to full scale deviation of the instrument is called?

Last Answer : The ratio of maximum displacement deviation to full scale deviation of the instrument is called linearity.

Last Answer : The scale of a rectifier instrument is linear.

Last Answer : A moving iron instrument can be used for both D.C. and A.C.

Last Answer : The disc of an instrument using eddy current damping should be of conducting and non-magnetic material.

Last Answer : In a portable instrument, the controlling torque is provided by spring.

Last Answer : The pointer of an indicating instrument should be very light.

Last Answer : Meggar is an instrument which measures the insulation resistance of an electric circuit relative to earth and one another.

Last Answer : A moving-coil permanent-magnet instrument can be used as flux-meter by eliminating the control springs.

Last Answer : A moving-coil permanent-magnet instrument can be used as ammeter by using a low resistance shunt.