Measurement And Instrumentation — Part 2 MCQs with Explanations

Full-scale value is the correct answer to “The error of an instrument is normally given as a percentage of”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

Standard deviation of error is the correct answer to “The repeat accuracy of an instrument can be judged from its”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

One international ohm is the correct answer to “The resistance offered to the passage of an in-varying current by a column of mercury at the temperature of melting ice of mass 14.4521 gms of uniform cross-sectional area and length 106.3cm is”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

Sine inverse of measurand is the correct answer to “In a gravity controlled instrument, the deflection angle is proportional”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

High frequencies is the correct answer to “The problem of Electrostatic coupling in a transformer is acute at”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

CRO is the correct answer to “Which meter is suitable for the measurement of 10mV at 50MHz”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

D.C. potentiometer is the correct answer to “Which of the following devices should be used for accurate measurement of low D.C. voltage”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

Linear output and fast response is the correct answer to “An instrument to be used for measurement and control should preferably have”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

High voltage measurements is the correct answer to “Electrostatic instruments are normally used for”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

99.99 K ohms is the correct answer to “The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100 ohms. This is to have full deflection when 100V is measured. What is the value of series resistor to be used”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

30° is the correct answer to “A spring controlled indicating instrument has a deflection of 90° for maximum current I. The corresponding deflection for a gravity controlled instrument is”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

Eddy current damping is the correct answer to “PMMC type instruments normally use”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

Bearing is the correct answer to “Jewels are used in instruments for the purpose of”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

Hot wire type is the correct answer to “Which instrument has identical calibration for ac as well as dc values”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

$$\frac{1}{{49.99}}{\text{ ohms}}$$ is the correct answer to “The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100 ohms. If this meter is to have full deflection at 5A, what is the value of the shunt resistance to be used”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

Logarithmic scale is the correct answer to “If the instrument is to have a wide range, the instrument should have”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

CT operates with considerably lower flux density than a PT is the correct answer to “It can be stated that”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

From the same source as the unknown voltage is the correct answer to “To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

100Hz is the correct answer to “With a sweep time 10ms across the screen the approx. horizontal sawtooth frequency will be”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

None of the above is the correct answer to “The thermocouple instrument will measure”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

High degree of measuring accuracy is the correct answer to “The thermocouple instruments do not have”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

Induction type ammeter is the correct answer to “Which of the following instruments can be used to measure AC current only”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

High frequency is the correct answer to “Wien bridge is useful for measuring”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

All right is the correct answer to “When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially and then slowly came to infinity position. This shows that capacitor is”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

quality factor of capacitor and inductor is the correct answer to “The function of the Q-meter is to measure:”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

1.00 V is the correct answer to “The expected value of the voltage across a resistor is 80 V. However, the voltmeter reads 79 V. The absolute error in the measurement is”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

climax ecosystem is the correct answer to “In final stage of ecological succession dynamic balance between species and physical environment takes place, which is called”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

a-2, b-3, c-4, d-1 is the correct answer to “Match List-I with List-II and select the correct answer by using the options given below: List-I List-II a. Digital Counter 1. Measurement of harmonic b. Scherring bridge 2. Measurement of frequency c. Meggar 3. Measurement of loss angle in a dielectric d. Spectrum Analyzer 4. Measurement of insulation resistance”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

piezoelectric transducer is the correct answer to “The active transducer in the measurement of pressure is”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

1500 is the correct answer to “An inductive pick-up is used to measure speed of a shaft on which a 120 tooth-wheel is attached. The number of pulses produced per second is 3000. What is the RPM of the shaft”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

LVDT is the correct answer to “Very small displacements are effectively measured using”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

Heaviside Campbell bridge is the correct answer to “The bridge best suited for measurement of mutual inductance is:”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

It has high torque-to-weight ratio is the correct answer to “For a dynamometer-type instrument, the incorrect statement from the following is:”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

photoconductive cell is the correct answer to “The device possessing the highest photosensitivity is a”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

directly proportional to angular speed is the correct answer to “Which one of the following is correct? The generated emf of tachogenerator is”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

1, 2 and 3 only is the correct answer to “Which of the following line telemetry systems are available? 1. Voltage telemetry system 2. Current telemetry systems 3. Positions telemetry systems 4. Resistivity telemetry systems”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

Manometer is the correct answer to “Which one of the following is not used for measurement of density”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

a straight line is the correct answer to “Input and output from a common-base amplifier are fed to an oscilloscope to see their phase relationship. The Lissajous figure is:”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

M-1L-3T4A2 is the correct answer to “The force between two charged particle is given by, $${\text{F}} = \frac{1}{{4\pi {\varepsilon _0}}}\frac{{{{\text{Q}}_{\text{1}}}{{\text{Q}}_{\text{2}}}}}{{{{\text{r}}^2}}},$$ where the symbols have their usual meanings. The dimensions of ∈ 0 in free space in SI system are:”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.

an ellipse in the first and third quadrant is the correct answer to “Lissajous pattern shown in double-beam cathode-ray oscilloscope screen for two sinusoidal voltages of equal magnitude and of the same frequency but of phase shift of 30° electrical is”. This question is standard in competitive examination syllabi for Measurement And Instrumentation.