Basic measurement quizes

The unit of quantity of electricity is

Electromotive force is provided by

The coulomb is a unit of

In order that work may be done

The ohm is a unit of

The unit of current is the

Value of Femto is

The purpose of instrument is to

The measurement refers to which of the following

Which of the following errors can arise, as a result of mistake in reading, parallax improper
instrument location and inadequate lighting?

The use of electronic instrument becoming more extensive because they have

The arithmetic mean of given n numbers is given by the following expression

Relation between standard deviation and variance is

The current sensitivity of a meter is expressed in

The basic meter movement can be converted into an ohmmeter by connecting a …..with it.

A 0-1 mA meter has a sensitivity of

Loading effect is principally caused—by instrument

A multimeter is used to measure

Moving iron instruments can be used as,

In series type ohmmeter

A make break switch is provided to disconnect the battery when the meter is not in use in

In D’Arsonval galvanometer, an iron core is usually used between the permanent magnet pole
faces. This is used so that,

Sometimes, the D’Arsonval galvanometers, do not use ferromagnetic cores between poles of the
permanent magnetic. In this case

A1 mA D’Arsonval movement has a resistance of 100 ohm. It is to be converted to a 10 V voltmeter.
The value of multiplier resistance is

A D’Arsonval movement is rated at Its sensitivity is

The major advantage of electromagnet type meter over a permanent magnet meter is

A thermocouple

The major advantage of an electrostatic meter is

The change in the direction of a compass needle, when a current carrying wire is brought near, is called

Ammeter shunts are useful because

Suppose a certain current in a galvanometer causes the compass needle to deflect by 20 degree, then this
current is doubled while the polarity stays the same. The angle of the needle deflection will

The attraction or repulsion between two electrically charged objects is called

A utility meter’s reading indicates

The most useful transducer for displacement sensing with excellent sensitivity, linearity and resolution
is?

One of the following, which is not a transducer in the true sense, is ?

Choose the correct statement

An oscilloscope cannot be used to indicate

In two watt meter method of power measurement, if one of the watt meter shows zero reading, then it
can be concluded that

voltmeters should generally have

To measure the applied power supply voltage to the electrical circuit, the voltmeter should be placed

Which will not normally cause a large error in an ohmmeter reading?

Which is not function of the fuse?

The utility meter’s motor speed depends directly on

A typical frequency counter

A VU meter is never used to get a general indication of

In order that work may be done

The ohm is a unit of

Transient signals can be observed using

The meter movement in an illumination meter directly measures

Consider the following statements:
1.The main shortcomings of diaphragms are that they are prone to shock vibrations.
2.Diaphragms have the advantages of high accuracy and good dynamic response
3.Selection of material for diaphragms mainly depends upon temperature range and chemical nature
of fluid coming in contact with diaphragm during pressure measurement.
Which of the above statements is/are correct?

Consider the following statements: [IES2010]
Piezoelectric materials
1.Crystal can be shown as electrical equivalent circuit similar to an inductor and a capacitor(Tank
circuit).
2.Quartz,Rochelle salt,tourmaline.
3.Used in voltage stabilizers.
4.This exhibits the reverse effect of electrostriction.
Which of the above statements are correct?

Consider the following units for the measurement of pressure directly: [IES2010]
1.Rolta meter
2.Bourdon tube
3.Planti meter
4.Vanes
Of these, the pressure can be measured by

The measurement of Hall coefficient of a semiconductor with one type of charge carrier gives the
information about

The pressure coil of a dynamo meter type wattmeter is

A hot-wire ammeter

The device used to indicate the presence of an electric current is

A watt-hour meter measures

A voltmeter should have

The rate at which charge carriers flow is measured in

The main problem with bar-graph meters is that