MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 124 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
_____________ is also known as halftone storage or mersh storage. |
| A. | Variable persistence storage |
| B. | Bistable storage |
| C. | Flat storage |
| D. | CRT |
| Answer» B. Bistable storage | |
| 102. |
A voltmeter has a resistance of G ohms and range V volts. The value of resistance required in series to convert it into voltmeter of range nV is ___________. |
| A. | nG |
| B. | G/n |
| C. | G/(n-1) |
| D. | (n-1)G |
| Answer» E. | |
| 103. |
An ammeter has a resistance of G ohms and range of I amperes. The value of resistance required in parallel to convert it into an ammeter of range nI is ___________. |
| A. | nG |
| B. | (n-1)G |
| C. | G/(n-1) |
| D. | G/n |
| Answer» D. G/n | |
| 104. |
Using mechanical chopper we cannot achieve high chopping rates due to their |
| A. | Input impedance |
| B. | Output impedance |
| C. | Response time |
| D. | Inertia |
| Answer» E. | |
| 105. |
The capacitance microphone is used for the detection of |
| A. | Heart rate |
| B. | Blood flow |
| C. | Heart sound |
| D. | Foot pressure |
| Answer» D. Foot pressure | |
| 106. |
Feedback in an amplifier always helps in |
| A. | Increasing its input impedance |
| B. | Increasing its gain |
| C. | Controlling its output |
| D. | Stabilizes its gain |
| Answer» D. Stabilizes its gain | |
| 107. |
The materil used to coat inside the face of CRT is ___________. |
| A. | Carbon |
| B. | Sulphur |
| C. | Silicon |
| D. | Phosphorous |
| Answer» E. | |
| 108. |
An inverse transducer is a device which converts |
| A. | An electrical quantity into a non electrical quantity |
| B. | Electrical quantity into mechanical quantity |
| C. | Electrical energy into thermal energy |
| D. | Electrical energy into light energy |
| Answer» B. Electrical quantity into mechanical quantity | |
| 109. |
A recorder is said to have good frequency response when the sensitivity of the system is _________ for all frequencies present in the signal. |
| A. | Unity |
| B. | Zero |
| C. | Infinity |
| D. | Constant |
| Answer» E. | |
| 110. |
Stress and strain curves are plotted using |
| A. | Magnetic tape recording |
| B. | X-Y recording |
| C. | Galvanometric |
| D. | PMMC writing systems |
| Answer» C. Galvanometric | |
| 111. |
When an ammeter is inserted in the circuit, the circuit current will ___________. |
| A. | Increase |
| B. | Decrease |
| C. | Remain the same |
| D. | None of the above |
| Answer» C. Remain the same | |
| 112. |
In strip chart recorders, the self balancing potentiometers plot emf as a function of |
| A. | Another emf |
| B. | Frequency |
| C. | Time |
| D. | Pressure |
| Answer» D. Pressure | |
| 113. |
In X-Y recorders, the self balancing potentiometers plot emf as a function of |
| A. | Another emf |
| B. | Frequency |
| C. | Time |
| D. | Pressure |
| Answer» B. Frequency | |
| 114. |
Silver chloride electrode is used as a reference electrode due to its |
| A. | Large half cell potential |
| B. | Stable half cell potential |
| C. | Stable resting potential |
| D. | Stable action potential |
| Answer» C. Stable resting potential | |
| 115. |
The resolution limit of electron microscope is |
| A. | 2 V |
| B. | 1 A.V |
| C. | 1.5 A.V |
| D. | 1.2 A.V |
| Answer» C. 1.5 A.V | |
| 116. |
pH value of venous blood is |
| A. | 7.30 |
| B. | 7.40 |
| C. | 7.35 |
| D. | 7.45 |
| Answer» D. 7.45 | |
| 117. |
The size of air cored transducers in comparison to the iron core parts is |
| A. | Smaller |
| B. | Larger |
| C. | Same |
| D. | Unpredictable |
| Answer» C. Same | |
| 118. |
A series ohmmeter circuit uses a 3 V battery and a 1 mA meter movement. What is the half-scale resistance for this movement? |
| A. | 3 kΩ |
| B. | kΩ |
| C. | kΩ |
| D. | 6 kΩ |
| Answer» B. kΩ | |
| 119. |
To reduce common mode interference during recording of bio signals one can use __________. |
| A. | Buffer amplifier |
| B. | Differential amplifier |
| C. | Single ended amplifier |
| D. | Chopper amplifier |
| Answer» C. Single ended amplifier | |
| 120. |
Which of the following is a digital transducer? |
| A. | Strain gauge |
| B. | Encoder |
| C. | Thermistor |
| D. | LVDT |
| Answer» C. Thermistor | |
| 121. |
Common mode rejection ratio is defined as ratio of |
| A. | Common mode gain to differential mode gain |
| B. | Differential mode gain to common mode gain |
| C. | Common mode gain at input to differential mode gain at input |
| D. | Common mode gain at output to differential mode gain at output |
| Answer» C. Common mode gain at input to differential mode gain at input | |
| 122. |
S1: In multimode fiber optics, intensity modulating schemes can be employed.S2: Schemes using polarizing techniques need birefringent fiber. |
| A. | S1 is true and S2 is false |
| B. | Both S1 and S2 are true |
| C. | S1 is false and S2 is true |
| D. | Both S1 and S2 are false |
| Answer» C. S1 is false and S2 is true | |
| 123. |
Pick the correct statement regarding functions of a transducerS1: Sense the magnitude, change in & / or frequency of same measurandS2: To provide electrical output that furnishes accurate, quantitative data about the measurand |
| A. | S1 is true & S2 is false |
| B. | S2 is true & S1 is false |
| C. | Both S1 & S2 are true |
| D. | Both S1 & S2 are false |
| Answer» D. Both S1 & S2 are false | |
| 124. |
The shorter wave length of the electron permits the detailed examination of tiny objects due to reduction of __________ effects |
| A. | Reflection |
| B. | Diffraction |
| C. | Refraction |
| D. | Polarization |
| Answer» C. Refraction | |