Description : You are given a mercury manometer range 0 -760 mm ? A vacuum gauge reads 60 mm vacuum. The test manometer reads 50 vacuum ? Which of the two in correct.
Last Answer : The transmitter is correct because 760 - 50 = 710 mm abs.
Description : A device or instrument, which delivers signals of precise frequency and amplitude, usually over a wide range
Last Answer : signal generators
Description : Current range extension in moving coil instruments can be achieved by placing a ___ in shunt with the instrument.
Last Answer : low resistance resistor
Description : A tunable RF instrument, which, by means of a sharp dip of an indicating meter, indicates resonance with an external circuit under test
Last Answer : dip meter
Description : What is this instrument or circuit that has four or more arms, by means of which one or more of the electrical constance of an unknown component may be measured?
Last Answer : bridge
Description : An instrument in which the magnitude of the measured quantity is indicated by means of pointer.
Last Answer : analog instrument
Description : Which of the following bridges measures dc resistance?
Last Answer : Wheatstone bridge
Description : An AC bridge that measures capacitance and dissipation factor
Last Answer : Schering Bridge
Description : An AC bridge that measures inductance in terms of resistance and capacitance.
Last Answer : Owen's Bridge
Description : An AC bridge that measures mutual inductance
Last Answer : Heaviside bridge
Description : Maxwell bridge measures an unknown inductance in terms of known
Last Answer : capacitance
Description : A certain pulse measures 10ms and has a period of 50ms. The duty cycle is __
Last Answer : 10ms/50ms = 20%
Description : A dynamometer instrument is mainly used as a/an
Last Answer : wattmeter
Description : An instrument of device having recognized permanent of stable value that is used as a reference.
Last Answer : standard instrument/device
Description : The scale of a hot-wire instrument is a/an ___function
Last Answer : squared
Description : Moving-iron instrument has a/an scale
Description : What is an electronic instrument capable of showing on screen and maybe on print, relative spacing of transmitter carriers, their sidebands and harmonics?
Last Answer : Spectrum Analyzer
Description : When both deflecting and controlling torque act, the pointer of an indicating instrument comes to
Last Answer : rest
Description : The smallest change in a measured variable to which an instrument will respond.
Last Answer : resolution
Description : In RF and microwave system, what instrument is used to measure the incidental and reflected signals?
Last Answer : reflectometer
Description : Which instrument is the most sensitive?
Last Answer : permanen-magnet moving coil
Description : A device or instrument able to generate noise with accurate voltage for test purposes
Last Answer : noise generator
Description : Resistance measuring instrument particularly used in determining the insulation resistance
Last Answer : Megger/Megaohmmeter
Description : What is that instrument used for measuring the strength and direction of magnetic fields?
Last Answer : magnetometer
Description : Majority of analog measuring instrument utilizes one of the following effects.
Last Answer : magnetic effect
Description : Determine which is not a dynamic instrument
Last Answer : Logic
Description : What do you call of an instrument that depends for its operation on the reaction between magnetic flux set up by currents in fixed windings and other currents set up by electromagnet induction in movable conducting parts?
Last Answer : induction instrument
Description : As the deflection of the moving system increases, the controlling torque in an indicating instrument.
Last Answer : increases
Description : An electro pyrometer is an instrument used to measure?
Last Answer : high temperatures
Description : An instrument used to detect and measure the presence of electrical current is generally called
Last Answer : galvanometer
Description : An indicating instrument whose movable coils rotate between two-stationary coils, usually used as wattmeter
Last Answer : electrodynamometer
Description : Permanent-magnet moving coil instrument can be used in
Last Answer : dc work only
Description : Basically, a PMMC instrument can be used only in
Last Answer : dc measurements
Description : Another name for PMMC instrument
Last Answer : D'Arsonval
Description : A force in analog instrument which quickly brings the moving system to rest in its final position.
Last Answer : damping force
Description : If the pointer of an indicating instrument is in motion, then what opposes deflecting torque?
Last Answer : damping and controlling torque
Description : What is the force acting on the pointer of an indicating instrument when it is in motion?
Last Answer : controlling, damping and deflecting torques
Description : Dynamometer type instrument can be used for
Last Answer : both dc and ac works
Description : What is the reason why the scale of a permanent-magnet moving coil instrument is uniform?
Last Answer : because it is spring controlled
Description : Indicating instrument is assumed to be most accurate at what part of the scale?
Last Answer : at half or full
Description : What type of instrument is the watt-hour meter?
Last Answer : an integrating
Description : What kind of instrument is an ammeter?
Last Answer : an indicating
Description : An instrument used for measuring the amount of current flowing in a circuit.
Last Answer : ammeter
Description : The pointer of an indicating instrument is generally made of
Last Answer : aluminum
Description : What is the typical full-scale deflection current of a moving coil instrument?
Last Answer : 50mA
Description : What temperatures do digital candy thermometers read ?
Last Answer : These thermometers need to be able to read super high temperatures. On average they will range from -40 all the way to 450 degrees F, You can also use an oil thermometer instead of a candy thermometer sine the temperatures needed for both can be very high.
Description : How will you calibrate an absolute pressure transmitter using vacuum manometer. Range 0-400mm abs ?
Last Answer : The procedure for calibration is as follows : Connect air supply to the transmitter. Connect a test gauge of 0-1.4 Kg/cm2 to the output. Connect Vacuum pump with tee off to the manometer. Apply 760 ... nearest ) and adjust zero. Apply 360 mm Vacuum adjust span. ( 760 - 360 = 400 mm abs. )
Description : What sensor provides a change of resistance with typical power range of 1uW to 10mW and with maximum frequency greater than 100GHz
Last Answer : thermistor sensor
Description : A sensing element that provides a dc voltage less than 10mV with typical power range of 0.1 to 100mW
Last Answer : thermal converters
Description : What is the typical power range for thermocouple sensors?
Last Answer : 0.1uW to 100mW