For measuring an unknown electrical quantity, select the meter with

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For measuring an unknown electrical quantity, select the meter with Highest range and work down.

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Before measuring an unknown resistance with an ohmmeter, you should _____________. A. adjust the meter's pointers to mid-scale B. change the meter's batteries C. center the meter's pointer at infinity D. short the test leads and calibrate the meter

Description : Before measuring an unknown resistance with an ohmmeter, you should _____________. A. adjust the meter's pointers to mid-scale B. change the meter's batteries C. center the meter's pointer at infinity D. short the test leads and calibrate the meter

Last Answer : Answer: D

Before measuring an unknown resistance with an ohmmeter, you should _____________. A. adjust the meter's pointer to mid-scale B. short the test leads and calibrate the meter reading to 'zero' C. change the meter's batteries D. center the meter's pointer at infinity

Description : Before measuring an unknown resistance with an ohmmeter, you should _____________. A. adjust the meter's pointer to mid-scale B. short the test leads and calibrate the meter reading to 'zero' C. change the meter's batteries D. center the meter's pointer at infinity

Last Answer : Answer: B

Measurement of a non -electrical quantity involves the following four subsystems:

Description : Measurement of a non -electrical quantity involves the following four subsystems:  a) amplifier block b) display block c) instrumentation block d) transducer block  The correct, sequence in which these block occur is  (1) d,a,c,b (2) d, c, a, b (3) a, c, b, d (4) a, b, c, d

Last Answer : Measurement of a non -electrical quantity involves the following four subsystems:  a) amplifier block b) display block c) instrumentation block d) transducer block  The correct, sequence in which these block occur is d,a,c,b

What electrical quantity is measured by a watt-hour meter?

Description : What electrical quantity is measured by a watt-hour meter?

Last Answer : Energy.

In an Anderson bridge, the unknown inductance is measured in terms of?

Last Answer : In an Anderson bridge, the unknown inductance is measured in terms of known capacitance and resistance.

What A unknown or changeable quantity is called a(n) .?

Description : What A unknown or changeable quantity is called a(n) .?

Last Answer : The answer is variable

What is an unknown quantity represented by a letter?

Description : What is an unknown quantity represented by a letter?

Last Answer : What is the answer ?

What Expressions that use a letter to represent and unknown quantity?

Description : What Expressions that use a letter to represent and unknown quantity?

Last Answer : An algebraic expression uses a letter to represent an unknownquantity.

What Expressions that use a letter to represent and unknown quantity?

Description : What Expressions that use a letter to represent and unknown quantity?

Last Answer : An algebraic expression uses a letter to represent an unknownquantity.

In a heterodyne-type frequency meter, what is the difference between the oscillator frequency and the unknown frequency?

Description : In a heterodyne-type frequency meter, what is the difference between the oscillator frequency and the unknown frequency?

Last Answer : Beat frequency.

In a standard multimeter for measuring AC voltage, parameter of _____ voltage is measured

Description : In a standard multimeter for measuring AC voltage, parameter of _____ voltage is measured

Last Answer : In a standard multimeter for measuring AC voltage, parameter of RMS voltage is measured

While measuring power in a three phase load by two wattmeter method, the reading of two wattmeter are

Description : While measuring power in a three phase load by two wattmeter method, the reading of two wattmeter are equal and opposite, when (a) load is balanced (b) power factor is unity (c) phase angle is between 60° to 90° (d) the load is purely inductive 

Last Answer :  Option (d)  Load is purely inductive 

The Maxwell bridge is used for measuring

Description : The Maxwell bridge is used for measuring (a) Capacitance (b) Dielectric loss (c) Inductance (d) Phase angle 

Last Answer : b)inductance

When measuring insulation resistance of cables using d.c. source, the galvanometer used should be initially

Description : When measuring insulation resistance of cables using d.c. source, the galvanometer used should be initially short circuited because  (A) Cables have a low value of capacitance which draws a high ... high value of charging current (D) Cables have a low value of capacitance and initial resistance

Last Answer : When measuring insulation resistance of cables using d.c. source, the galvanometer used should be initially short circuited because Cables have a high value of capacitance which draws a high value of charging current

Wien bridge is useful for measuring

Last Answer : Wien bridge is useful for measuring High frequency.

For measuring emf of a standard cell we use:

Last Answer : For measuring emf of a standard cell we use: Potentiometer

An instrument that is capable of measuring only dc is:

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

The desirable static characteristics of a measuring system are?

Last Answer : The desirable static characteristics of a measuring system are accuracy, sensitivity and reproducibility.

For measuring a very high resistance we should use?

Last Answer : For measuring a very high resistance we should use Meggar.

For measuring current at high frequency we should use?

Last Answer : For measuring current at high frequency we should use thermocouple instrument.

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

Fill in the blank. There is _______ correlation between project complexity and project risk. Select one:a. an unknown b. a positive c. no d. a negative e. a general

Description : Fill in the blank. There is _______ correlation between project complexity  and project risk. Select one: a. an unknown b. a positive c. no d. a negative e. a general

Last Answer : b. a positive

An adult male living in nonmalarious area has to visit an area where chloroquine resistant P. falciparum is prevalent. He is intolerant to mefloquine and his G6PD status is unknown. Select the drug that you will prescribe for prophylaxis of malaria: A. Primaquine B. Doxycycline C. Amodiaquine D. Quinine

Description : An adult male living in nonmalarious area has to visit an area where chloroquine resistant P. falciparum is prevalent. He is intolerant to mefloquine and his G6PD status is unknown. Select the ... you will prescribe for prophylaxis of malaria: A. Primaquine B. Doxycycline C. Amodiaquine D. Quinine

Last Answer : B. Doxycycline

_____ instruments are those which measure the total quantity of electricity delivered in a particular time.

Last Answer : Integrating instruments are those which measure the total quantity of electricity delivered in a particular time.

Which instruments are those which measure the total quantity of electricity delivered in a particular time?

Last Answer : Integrating instruments are those which measure the total quantity of electricity delivered in a particular time.

A reading of 120 is obtained when a standard inductor was connected in the circuit of a Q-meter and the

Description : A reading of 120 is obtained when a standard inductor was connected in the circuit of a Q-meter and the variable capacitor is adjusted to a value of 300 pF. A lossless capacitor of unknown value Cx is then connected in ... value of 200 pF. The value of Cx in pF is  A) 100 B) 200 C) 300 D) 500

Last Answer : A reading of 120 is obtained when a standard inductor was connected in the circuit of a Q-meter and the variable capacitor is adjusted to a value of 300 pF. A lossless capacitor of unknown value Cx is ... when the variable capacitor is readjusted to a value of 200 pF. The value of Cx in pF is 100 

For measurement of radio frequency ac signals __________ type meter is used

Description : For measurement of radio frequency ac signals __________ type meter is used

Last Answer : For measurement of radio frequency ac signals thermo-couple type meter is used

A moving coil of meter has 100 turns, and a length and depth of 10mm and 20mm respectively. It is positioned

Description : A moving coil of meter has 100 turns, and a length and depth of 10mm and 20mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carrier current capacity is 50 mA. The torque on the coil is

Last Answer : A moving coil of meter has 100 turns, and a length and depth of 10mm and 20mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carrier current capacity is 50 mA. The torque on the coil is 200µNm

The meter which does not have any component in it to provide control torque is

Description : The meter which does not have any component in it to provide control torque is (A) Electrodynamometer for current measurement (B) Electrodynamometer for voltage measurement (C) Electrodynamometer for power measurement. (D) Electrodynamometer for power factor measurement.

Last Answer : The meter which does not have any component in it to provide control torque is Electrodynamometer for power factor measurement.

An induction type energy meter is found to run fast. Correction for this error can be made by

Description : An induction type energy meter is found to run fast. Correction for this error can be made by  (A) Over-load compensation. (B) Voltage compensation. (C) Moving the brake magnet away from the centre of the disc. (D) Moving the brake magnet towards the centre of the disc.

Last Answer : An induction type energy meter is found to run fast. Correction for this error can be made by Moving the brake magnet away from the centre of the disc.

A 200 V, 5 A d.c. energy meter is tested at its marked ratings. The resistance of the pressure circuit is 8000 Ω

Description : A 200 V, 5 A d.c. energy meter is tested at its marked ratings. The resistance of the pressure circuit is 8000 Ω and that of current coil is 0.1 Ω. The power consumed when testing the meter with phantom loading with current circuit excited by a 6 V battery is (A) 2.5 W (B) 5 W (C) 32.5 W (D) 35 W

Last Answer : A 200 V, 5 A d.c. energy meter is tested at its marked ratings. The resistance of the pressure circuit is 8000 Ω and that of current coil is 0.1 Ω. The power consumed when testing the meter with phantom loading with current circuit excited by a 6 V battery is 35 W

Identify the instrument that does not exist (A) Dynamo-meter type ammeter (B) Dynamo-meter type

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

The principle of operation of Q-meter is based on

Last Answer : The principle of operation of Q-meter is based on Series resonance.

An ideal meter should have

Last Answer : An ideal meter should have Absolutely no effect on the circuit being measured.

In a moving iron meter, the deflecting torque is proportional to

Last Answer : In a moving iron meter, the deflecting torque is proportional to Square of the current through the coil.

Why is a MISC meter not recommended for DC measurement?

Last Answer : MISC meter not recommended for DC measurement because the error is high due to the hysteresis effect.

For high accuracy the meter has

Last Answer : For high accuracy the meter has Hand drawn scale.

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

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

It is desired to convert a 0-1000A meter movement, with an internal ...

Description : It is desired to convert a 0-1000A meter movement, with an internal resistance of 100 ohms, into a 0-100mA meter. The required value of shunt resistance is about 

Last Answer : It is desired to convert a 0-1000A meter movement, with an internal resistance of 100 ohms, into a 0-100mA meter. The required value of shunt resistance is about 1 ohms.

In an energy meter braking torque is produced to

Last Answer : In an energy meter braking torque is produced to maintain steady speed and equal to driving torque

Various adjustments in an energy meter include

Last Answer :  Various adjustments in an energy meter include light load or friction, lag and creep, overload and voltage compensation.

Two holes in the disc of energy meter are drilled at the opposite sides of the spindle to

Last Answer : Two holes in the disc of energy meter are drilled at the opposite sides of the spindle to eliminate creeping at no load

To measure radio frequency, the suitable frequency meter is

Last Answer : To measure radio frequency, the suitable frequency meter is heterodoxy frequency meter.

In a dynamo-meter type of moving coil instrument a swamping resistance is provided in order to:

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

A Weston frequency meter is?

Last Answer : A Weston frequency meter is moving iron instrument.

In a Weston frequency meter, the magnetic axes of the two fixed coils are?

Last Answer : In a Weston frequency meter, the magnetic axes of the two fixed coils are perpendicular.

In a vibrating reed frequency meter the natural frequencies of two adjacent reeds have a difference of?

Last Answer : In a vibrating reed frequency meter the natural frequencies of two adjacent reeds have a difference of 0.5 Hz.

In a dynamometer 3-phase power factor meter, the planes of the two moving coils are at?

Last Answer : In a dynamometer 3-phase power factor meter, the planes of the two moving coils are at 120°.

In a single phase power factor meter the phase difference between the currents in the two pressure coils is?

Last Answer : In a single phase power factor meter the phase difference between the currents in the two pressure coils is exactly 90°.

The two pressure coils of a single phase power factor meter have?

Last Answer : The two pressure coils of a single phase power factor meter have the same dimensions and the same number of turns.