In VTVMS, ___ refers to the smallest signal that can be reliably measured

In VTVMS, ___ refers to the smallest signal that can be reliably measured
by

1 Answer

Answer :

sensitivity
by

Related questions

The time interval that a waveform is high (or low) is the ___ of the signal.

Description : The time interval that a waveform is high (or low) is the ___ of the signal.

Last Answer : pulse width

The ___ provides the visual display showing the form of the signal applied as a waveform on the front screen of a cathode ray oscilloscope

Description : The ___ provides the visual display showing the form of the signal applied as a waveform on the front screen of a cathode ray oscilloscope

Last Answer : CRT

The smallest change in a measured variable to which an instrument will respond.

Description : The smallest change in a measured variable to which an instrument will respond.

Last Answer : resolution

Most AC voltmeters have an rms scale which is valid only if the input signal being measured is a __ signal.

Description : Most AC voltmeters have an rms scale which is valid only if the input signal being measured is a __ signal.

Last Answer : sinusoidal

___ has a series RC combination in one arm and a parallel RC combination in the adjoining arm and used as a notch filter in harmonic distortion analyzer.

Description : ___ has a series RC combination in one arm and a parallel RC combination in the adjoining arm and used as a notch filter in harmonic distortion analyzer.

Last Answer : wein bridge

When the capacitors of a Wein Bridge are replaced by inductors, the bridge becomes ___

Description : When the capacitors of a Wein Bridge are replaced by inductors, the bridge becomes ___

Last Answer : Wein Inductance Bridge

Induction type instruments are mostly used as ___

Description : Induction type instruments are mostly used as ___

Last Answer : watt-hour meter

For amplitude measurements, ___ scale is calibrated in either volts per centimeter (V/cm), or millivolts per centimeter (mV/cm)

Description : For amplitude measurements, ___ scale is calibrated in either volts per centimeter (V/cm), or millivolts per centimeter (mV/cm)

Last Answer : vertical

When the meter is unsufficiently damped, it is considered as ___

Description : When the meter is unsufficiently damped, it is considered as ___

Last Answer : underdamped

___ ammeter is used to measure high-frequency currents.

Description : ___ ammeter is used to measure high-frequency currents.

Last Answer : thermocouple

A wheatstone bridge is balanced if ___

Description : A wheatstone bridge is balanced if ___

Last Answer : the ratio of resistors on one side of the bridge equals the ratio of resistors on the other side

In a moving coil ammeter, a ___ is connected in series with the coil to compensate for temperature variations

Description : In a moving coil ammeter, a ___ is connected in series with the coil to compensate for temperature variations

Last Answer : swamping resistors

The time interval between pulses is called ___

Description : The time interval between pulses is called ___

Last Answer : pulse delay

A measure of consistency or repeatability of measurements is called. ___

Description : A measure of consistency or repeatability of measurements is called. ___

Last Answer : precision

___ is used for measuring medium Q coils

Description : ___ is used for measuring medium Q coils

Last Answer : Maxwell Bridge

Current range extension in moving coil instruments can be achieved by placing a ___ in shunt with the instrument.

Description : Current range extension in moving coil instruments can be achieved by placing a ___ in shunt with the instrument.

Last Answer : low resistance resistor

Error in voltmeter is due to ___

Description : Error in voltmeter is due to ___

Last Answer : loading

In an oscilloscope, ___ adjusts the brightness of the spot by chaning the current on the control grid.

Description : In an oscilloscope, ___ adjusts the brightness of the spot by chaning the current on the control grid.

Last Answer : intensity control

For time measurements, ___ scale of the scope is used.

Description : For time measurements, ___ scale of the scope is used.

Last Answer : horizontal

High sensitive DC voltmeter provides accurate reading when measuring ___ circuits.

Description : High sensitive DC voltmeter provides accurate reading when measuring ___ circuits.

Last Answer : high resistance

High sensitive DC voltmeter provides accurate reading when measuring ___ circuits.

Description : High sensitive DC voltmeter provides accurate reading when measuring ___ circuits.

Last Answer : high resistance

For a dynamometer to be able to measure high current, a ___ should be used.

Description : For a dynamometer to be able to measure high current, a ___ should be used.

Last Answer : current transformer

___ meter is the most sensitive

Description : ___ meter is the most sensitive

Last Answer : 1uA

Why flow is measured in square root?

Description : Why flow is measured in square root?

Last Answer : Flow varies directly as the square root of different pressure F = K square root of D/P. Since this flow varies as the square root of differential pressure the pen does not directly indicate flow. The flow can be determined by taking the square root of the pen. Say the pen reads 50% of chart.

The frequency of rotation in some rotating machinery can be measured by a

Description : The frequency of rotation in some rotating machinery can be measured by a

Last Answer : stroboscope

Insulation resistance is measured by which meter?

Description : Insulation resistance is measured by which meter?

Last Answer : megger

Tank-circuit frequency can be measured by

Description : Tank-circuit frequency can be measured by

Last Answer : grid dip meter

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

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

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?

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

An instrument in which the magnitude of the measured quantity is indicated by means of pointer.

Description : An instrument in which the magnitude of the measured quantity is indicated by means of pointer.

Last Answer : analog instrument

What is the degree of exactness of measurement when compared to the expected value of the variable being measured?

Description : What is the degree of exactness of measurement when compared to the expected value of the variable being measured?

Last Answer : Accurary

This refers to a four-arm ac bridge used for measuring inductance against a standard capacitance.

Description : This refers to a four-arm ac bridge used for measuring inductance against a standard capacitance.

Last Answer : Maxwell Bridge

Refers to an ac bridge for measuring the inductance and Q of an inductor in terms of resistance, frequency and a standard capacitance.

Description : Refers to an ac bridge for measuring the inductance and Q of an inductor in terms of resistance, frequency and a standard capacitance.

Last Answer : hay bridge

The period of a repetitive signal is

Description : The period of a repetitive signal is

Last Answer : 1 cycle of the waveform

What is a filter used for ?

Description : What is a filter used for ?

Last Answer : The half wave and full wave signals are pulsating D . C . voltages. The use of such voltages is limited to charging batteries, running D. C. motors, and a few other applications. What we really ... voltage from a battery. To get a constant voltage from this, we can use a capacitor input filter. 

What is Zener Diode ? What is a voltage Regulator ?

Description : What is Zener Diode ? What is a voltage Regulator ?

Last Answer : The breakdown region of a p n diode can be made very sharp and almost vertical Diodes with almost vertical breakdown region are known as Zever Diodes. A Zener diodes operating in the breakdown ... VOLTAGE REGULATOR : The output remains constant despite changes in input voltage due to Zever effect.  

What is transistor ? What are the different types ?

Description : What is transistor ? What are the different types ?

Last Answer : A transistor is a three lagged semi conductor device. Basically a transistor means (transfer - resister). Whether the transistor is pnp or npn it resembles two diodes (back to back). The one of the left ... transistor : Emitter - Base - Forward Bias. Collector - Base - Reverse Bias. 

What is CB, CE and CC configuration ?

Description : What is CB, CE and CC configuration ?

Last Answer : Buffer : A device or a circuit used to isolate two pt'ne circuits or stages. The emitter follows is a example of buffer. Alpha = IC / IE Beta = IC / IB

How will you test a transistor with a multimeter. ?

Description : How will you test a transistor with a multimeter. ?

Last Answer : 1. Emitter +ve of meter and Base -ve output = Low resistance 2. Emitter -ve of meter and base +ve output = High resistance. 3. Collector +ve and Base -ve output = Low. 4. Collector -ve and base +ve output = High. Emitter : Collector = High Resistance. PNP : Opposite Results. 

What is a thyristor ? What are its uses ?

Description : What is a thyristor ? What are its uses ?

Last Answer : A thyristor is a special kind of semi conductor device that uses internal feedback to produce latching action. Use : Used for controlling large amounts of load power in motors, heaters, lighting systems etc ... the latches like a open switch. This latch will always stay in open or close position.  

What does a transmitter output start from 3-15 psi or (0.2 - 1 Kg/Cm2) or 4 - 20 ma. etc. ?

Description : What does a transmitter output start from 3-15 psi or (0.2 - 1 Kg/Cm2) or 4 - 20 ma. etc. ? 

Last Answer : The transmitter output stance from what is known as "live zero". This system has specific advantages : 1. The systems automatically alarms when the signal system becomes inoperative. ... transmitter operating, but transmitting a zero measurement and a failure, in the signal system. 

What are Intrinsically safe system ?

Description : What are Intrinsically safe system ?

Last Answer : Intrinsic safety is a technique for designing electrical equipment for safe use in locations made hazardous by the presence of flammable gas or vapors in air. "Defn. :" Intrinsically safe circuit is ... , unfortunately, been adopted in all countries. However two sets of codes in common use are.  

What is feed back control ? What is feed forward control ? Discuss its application ?

Description : What is feed back control ? What is feed forward control ? Discuss its application ?

Last Answer : Feed back control: Feed back control involves the detection of the controlled variable and counteracting of charges its it's value relative to set point, by adjustment of a manipulated ... controller for a particular process application, two factors time and gain must be considered.    

What is Furnace Draft control ?

Description : What is Furnace Draft control ? 

Last Answer : Balanced draft boilers are generally used negative furnace pressure. When both forced draft and induced draft are used together, at some point in the system the pressure will be the same as that of atmosphere. ... have is a very slight (about 0.1" H20 ) negative pressure of the top of furnace.  

What is the difference the a wheatstone bridge and a potentiometer ?

Description : What is the difference the a wheatstone bridge and a potentiometer ?

Last Answer : The difference between a potentiometer and a wheatstone bridge measuring instrument is that potentiometer is a voltage measuring instrument and wheatstone bridge is a current measuring instrument. 

What is the specialty of thermocouples lead wires ?

Description : What is the specialty of thermocouples lead wires ?

Last Answer : They should be of the same material as the thermocouple.  

What are skin temperature thermocouples ?

Description : What are skin temperature thermocouples ? 

Last Answer : Skin thermocouples are those which are directly connected to the process without any thermowell. Used for measuring the skin temperature of heaters furnaces, flue gas etc.  

What type of sensing element would you use to measure very low temperature ?

Description : What type of sensing element would you use to measure very low temperature ?

Last Answer : The sensing element used for measuring very low temperature is R. T. D. ( Resistance Temperature Detector )

How will you calibrate a temp. recorder using a potentiometer ?

Description : How will you calibrate a temp. recorder using a potentiometer ?

Last Answer : Connect the potentiometer output to the input of temp. recorder. 1. Connect the ( +ve ) to the ( +ve ) and ( -ve ) to the ( -ve ). 2. If ambient compensation is provided ... ambient temp. millvolts to the corr. input millvolts measured. Find out from the chart for the corresponding temperature. 

Why are Thermowells used ?

Description : Why are Thermowells used ?

Last Answer : In numerous application it is neither desirable nor practical to expose a temperature sensor directly to a process material. Wells are therefore used to protect against damage corrosion, erosion, abrasion and high pressure processes. A ... 3. Monel. 4. Alloy steal. 5. Hastelloy 'C'.