Explore topic-wise MCQs in Graduate Aptitude Test (GATE).

Who invented first digital voltmeter?

In a CRO what is the purpose of blanking circuit?

Which of the following unit is used to express sensitivity of analog voltmeter?

Which of the following applications are electrostatic instruments suited for?

Which of the following device can be used to measure low voltage?

This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Measurement of Voltage”.

1. A Multimeter is used to measure___________

Which of the following effect is used in AC ammeters?

 An induction meter can handle current up to__________

Using a low resistant shunt Moving coil, permanent magnet instrument can be converted to ______________

What will be the average value of current, if its peak value is 43A?

Which of the following can be treated as an equivalent of ampere?

In a conductor after 1 minute of electron passage, current flown is found to be 1mA. How many electrons would have passed through that conductor?

How many electrons are contributed in one coulomb electric charge?

Which of the following devices can be used with both AC and DC?

What is the purpose of making internal resistance of milli-ammeter very low?

Find the initial value of current for which transient current is given by
I(S) = (S2+S)⁄(5S2+1)

What is ‘live zero’?

What is the term used to express ability of a measuring system to maintain its standard performance?

What is the relation between static error and static correction?

For a Measurement, indicated value is 225V while true value if 226V. What will be the static error of instrument?

What will be the ratio of amplitudes of largest (maximum) signal to smallest (minimum) signal to which the system is subjected?

What is the span of an instrument, operating under a bias which read value from 230V to 450V only?

 For a measuring system, dynamic sensitivity is required to be ________ of static sensitivity.

______________ of a measuring system refers to its ability to follow instant by instant the measurand with time.

This set of Instrumentation Transducers Interview Questions and Answers focuses on “Performance Characteristics of Transducers”.

1. Closeness of measured value to true value is _________________

Using an instrument for measuring capacitance gives an output 203.5nF whereas true value is 203.9nF. What will be the static correction of instrument?

What will be the sensitivity of a voltmeter for 0 to 50mA meter movement?

Given a DC voltmeter has a sensitivity of 500ohm/V. For a full scale reading in 100V range, what will be the current through voltmeter?

What is the span of an ammeter with range -30 to +30A?

______________ is used to prevent oscillation in moving system

Using a voltmeter measured value is 24.3V, while its true value is 24V. What is the relative error of measurement?

 In a measuring system what is the term used to specify difference between higher and lower calibration values?

During a measurement, for a measure value “B”, absolute error is obtained as “A”, what will be the relative error of measurement?

Comment true or false: ‘Accuracy and Precision are dependent on each other’

Comment true or false: ‘Accuracy and Precision are dependent on each other’.

In a measurement, what is the term used to specify the closeness of two or more measurements?

In a measuring system quantity under measurement is termed as ________________

Science of precise and accurate measurement of various physical quantities is termed as___________

Raju has 14 currency notes in his pocket consisting of only Rs.20 notes and Rs. 10 notes. The total money value of the notes Is Rs.230. The number of Rs. 10 notes that Raju has is

Which one of the following options is the closest in meaning to the word given below?

One of the parts (A, B, C, D) in the sentence given below contains an ERROR. Which one the following is INCORRECT? I requested that he should be given the driving test today instead of tomorrow.

Choose the most appropriate alternative from the options given below to complete the following sentence:If the tried soldier wanted to lie down, he the mattress out on the balcony

The power factor of the load is

The translation S of the spot of laser on the photo-detector when a force of F=1N is applied to the cantilever is:

For the same network, with 6V dc connected at port A, 1ohm connected at port B draws 7/3A. If 8V dc is connected to port A, the open circuit voltage at port B is:

With 1OV dc connected at port A, the current drawn by 7ohms connected at port B is:

An analog voltmeter uses external multiplier settings. With a multiplier setting of 20kΩ, it reads 440V and with a multiplier setting of 80kΩ, it reads 352V. For a multiplier setting of 40kΩ, the voltmeter reads:

A double convex lens is used to couple a laser beam of diameter 5mm into an optical fiber with a numerical aperture of 0.5. The minimum focal length of the lens that should be used In order to focus the entire beam into the fiber is:

Light of wavelength 630nm in vacuum, falling normally on a biological specimen of thickness 10pm, splits into two beams that are polarized at right angles. The refractive indexes of the tissue for the two polarizations are 1.32 and 1.333. When the two beams emerge, they are out of phase by:

An LED emitting at 1μm with a spectral width of 50nm is used in a Michelson Interferometer. To obtain a sustained interference, the maximum optical path difference between the two arms of the interferometer is: