Analytical instruments/Analytical Instrumentation MCQ Question Set 26 Sample Test,Sample questions

Question:
 Aperture time, holding time and acquisition time are equal in magnitude.

1.True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-04-30 07:48:03


Question:
 Balanced and double balanced modulators produce ________

1.Amplitude modulated signal

2.Frequency modulated signal

3. Both AM and FM

4.None of the mentioned

Posted Date:-2022-04-30 07:15:38


Question:
 Indirect FM generators uses ______

1.Crystal oscillator

2.Wien bridge oscillator

3. LC oscillator

4. RC tuned circuit

Posted Date:-2022-04-30 07:26:36


Question:
 Internal torque of the coil, while operation is _______

1.M.r

2. M.r2

3.M.r2.x’’(t)

4.M.r.x(t)

Posted Date:-2022-04-30 07:05:17


Question:
 Output signal of electromagnetic flow meter inversely proportional to ________

1.Magnetic flux density

2.Diameter of tube

3.Velocity of flow

4.None of the mentioned

Posted Date:-2022-04-30 07:09:50


Question:
 Sampling is the process of conversion of _________

1.Continuous signal to discrete signal

2.Discrete signal to continuous signal

3. Continuous signal to amplified continuous signal

4. None of the mentioned

Posted Date:-2022-04-30 07:45:28


Question:
 Single tuned circuit is used for _______

1. Narrow band operation

2.Wide band operation

3.Specific band operation

4.None of the mentioned

Posted Date:-2022-04-30 07:30:38


Question:
 System is much unstable at _____

1. Very low value of gain of amplifier

2.High gain of amplifier

3.Gain specific to a range

4.None of the mentioned

Posted Date:-2022-04-30 07:07:22


Question:
 The whole feedback accelerometer system will be _________

1.Zero order system

2.First order system

3.Second order system

4.Third order system

Posted Date:-2022-04-30 07:06:31


Question:
 Which of the following act as a slope detector?

1.FM detector

2.Tuned FM detector

3.AM detector

4. Tuned AM detector

Posted Date:-2022-04-30 07:29:46


Question:
AM signals are the _____ of data signal and carrier signal.

1.Difference

2.Sum

3.Product

4.Ratio

Posted Date:-2022-04-30 07:14:52


Question:
Amstrong modulator is _________

1. Direct modulator

2. Indirect modulator

3.Unbalanced modulator

4.Balanced modulator

Posted Date:-2022-04-30 07:26:58


Question:
Demodulation is the process of _______

1.Extraction of analog signal

2.Multiplication with carrier wave

3.Extraction of carrier wave

4.None of the mentioned

Posted Date:-2022-04-30 07:28:57


Question:
Discriminators are also known as _______

1. Modulators

2.Demodulator

3.Converters

4.Incriminators

Posted Date:-2022-04-30 07:29:23


Question:
During sampling hold capacitor is isolated.

1.True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-04-30 07:48:35


Question:
Electromagnetic flow meter is based on ________

1.Coulomb’s law

2.Law of electromagnetic induction

3.Kirchhoff law

4.Newton’s law

Posted Date:-2022-04-30 07:11:39


Question:
Feedback system draws current from the main circuit.

1. True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-04-30 07:10:50


Question:
Feedback system in electromagnetic flow meter is applied to ______

1.Overcome fluctuation of B

2.Reduce measuring time

3.Reduce excitation supply

4.None of the mentioned

Posted Date:-2022-04-30 07:10:34


Question:
Feedback torque developed due to the application of LVDT will be _______

1.Equal to inertial torque

2.Greater than inertial torque

3.Less than inertial torque

4.No relation with inertial torque

Posted Date:-2022-04-30 07:05:42


Question:
FM generators for communication has frequency _______

1.Less than 10MHz

2.Between 10MHz and 100MHz

3.Between 100MHz and 300MHz

4. Above 500MHz

Posted Date:-2022-04-30 07:25:56


Question:
Foster-seely detector is _____

1.AM detector

2.FM detector

3. AM demodulator

4.None of the mentioned

Posted Date:-2022-04-30 07:42:40


Question:
Foster-seely detector is used for carrier frequency________

1.Below 1 KHz

2.Below 1MHz

3.Above 1MHz

4.Above 5MHz

Posted Date:-2022-04-30 07:43:10


Question:
Frequency of AC electromagnets are independent of magnetic flux density.

1. True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-04-30 07:10:06


Question:
Gate is equivalent to _____

1. Feedback circuit

2.Switch

3.Amplifier

4.Diode

Posted Date:-2022-04-30 07:46:36


Question:
Modulation index for music broadcasting ___________ with increasing frequency.

1. Increases

2.Decreases

3.Constant

4.None of the mentioned

Posted Date:-2022-04-30 07:27:44


Question:
Modulation index is the product of Δfc and fm.

1.True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-04-30 07:27:18


Question:
Phase sensitive detector is used as ______

1.Peak detector

2.Error detector

3.Threshold detector

4.Phase detector

Posted Date:-2022-04-30 07:44:20


Question:
PLL is a _______

1.Negative feedback system

2.Positive feedback system

3.Open loop system

4.None of the mentioned

Posted Date:-2022-04-30 07:43:58


Question:
PLL stands for _______

1.Phase loaded loop

2.Phase least loop

3.Phase locked loop

4.None of the mentioned

Posted Date:-2022-04-30 07:43:34


Question:
PMMC system is used for providing _____

1.Feedback torque

2.Damping

3.Feedback torque and damping

4.Sufficient magnetic field

Posted Date:-2022-04-30 07:04:52


Question:
Power level of FM signal in space telemetry and entertainment system are equal.

1.True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-04-30 07:26:12


Question:
Servo operated electromagnetic flow meter is _______

1.Zero order system

2. First order system

3.Second order system

4.Third order system

Posted Date:-2022-04-30 07:11:17


Question:
Tank circuit contains ________

1. Inductor

2.Capacitor

3.Both inductor and capacitor

4.None of the mentioned

Posted Date:-2022-04-30 07:28:16


Question:
Under steady state conditions, inertial torque will be ______ to output current (Io).

1.Equal

2.Directly proportional

3.Inversely proportional

4.In no relation

Posted Date:-2022-04-30 07:06:10


Question:
Which for the following represents condition for maximum emf?

1.Electrodes parallel to pipe length

2.Electrodes parallel to flow

3.Electrodes across flow

4.None of the mentioned

Posted Date:-2022-04-30 07:12:01


Question:
Which of the following application gating circuit used for?

1. For feed backing

2.For providing shot duration pulse

3.For amplification

4.For switching

Posted Date:-2022-04-30 07:46:13


Question:
Which of the following are not suitable with electromagnetic flow meter?

1. Steady flowing liquid

2.Slurries

3. Liquid containing particulate matter

4.None of the mentioned

Posted Date:-2022-04-30 07:09:27


Question:
Which of the following can perform as gating circuit?

1.Diode bridge

2.Transistor switch

3. IC circuit

4.All of the mentioned

Posted Date:-2022-04-30 07:46:58


Question:
Which of the following can produce an AM signal?

1.Any electronic device

2.Any electronic device with linear chara

3.Any electronic device with non-linear chara

4.None of the mentioned

Posted Date:-2022-04-30 07:15:17


Question:
Which of the following circuit limit amplitude in FM signal?

1.Amplitude limiter

2.Amplitude controller

3. Amplitude magnifier

4.None of the mentioned

Posted Date:-2022-04-30 07:30:13


Question:
Which of the following device is used for a sample circuit?

1. IC 741

2.IC 4047

3. IC 4041

4. IC 8870

Posted Date:-2022-04-30 07:48:59


Question:
Which of the following device is used for measuring emf between electrodes?

1.Low impedance type voltmeter

2.High impedance voltmeter

3.No specification for voltmeter

4. None of the mentioned

Posted Date:-2022-04-30 07:12:29


Question:
Which of the following factors electromagnetic flow meters are sensitive to?

1.Temperature of fluid

2.Viscosity of fluid

3. Density of fluid

4.None of the mentioned

Posted Date:-2022-04-30 07:12:53


Question:
Which of the following forms HOLD circuit?

1. Capacitor

2. Resistor

3.Inductor

4. Op-amp

Posted Date:-2022-04-30 07:47:21


Question:
Which of the following is measured in open loop accelerometer system?

1. Absolute displacement of a proof mass

2. Relative displacement between the proof mass and external environment

3.Relative displacement between the proof mass and housing

4.None of the mentioned

Posted Date:-2022-04-30 07:04:27


Question:
Which of the following methods are employed for improving the gain of amplifier?

1.Liquid damping system

2.Air damping system

3. By eliminating damping system

4.Cannot improve gain

Posted Date:-2022-04-30 07:07:00


Question:
Which of the following represents the charging time of capacitor to maximum input value?

1. Charging time

2.Acquisition time

3.Peak time

4. Threshold time

Posted Date:-2022-04-30 07:47:44


Question:
Which of the following represents the sampling frequency of signal frequency 50Hz?

1.110 Hz

2. 30 Hz

3.80 Hz

4.40 Hz

Posted Date:-2022-04-30 07:45:51


Question:
Which of the following will function as an integrator of input voltage?

1.Motor of speed inversely proportional to voltage

2.Motor of speed directly proportional to voltage

3. Motor of speed equal to voltage

4.None of the mentioned

Posted Date:-2022-04-30 07:07:49


Question:
Why feedback in accelerometer systems are applied to?

1.To increase the range

2.To increase accuracy

3.To increase accuracy and bandwidth

4.None of the mentioned

Posted Date:-2022-04-30 07:04:01


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