McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Electrical Engineering .
| 101. |
The adjustment of position of shading bands, in an energy meter is done to provide |
| A. | friction compensation |
| B. | creep compensation |
| C. | braking torque |
| D. | none of the above |
| Answer» A. friction compensation | |
| 102. |
In an energymeter braking torque is produced to |
| A. | safe guard it against creep |
| B. | brake the instrument |
| C. | bring energy meter to stand still |
| D. | maintain steady speed and equal to driving torque |
| Answer» D. maintain steady speed and equal to driving torque | |
| 103. |
Various adjustments in an energy meter include |
| A. | light load or friction |
| B. | lag and creep |
| C. | overload and voltage compensation |
| D. | all of the above |
| Answer» D. all of the above | |
| 104. |
Dipsticks are used for the |
| A. | pressure measurement |
| B. | flow measurement |
| C. | displacement measurement |
| D. | level measurement |
| Answer» D. level measurement | |
| 105. |
In ultrasonic level gauge, the ultrasonic source is placed at the |
| A. | bottom of the vessel containing the liquid |
| B. | top of the vessel containing the liquid |
| C. | middle of the vessel containing the liquid |
| D. | far from the vessel containing the liquid |
| Answer» A. bottom of the vessel containing the liquid | |
| 106. |
What is the principle of operation of LVDT? |
| A. | mutual inductance |
| B. | self-inductance |
| C. | permanence |
| D. | reluctance |
| Answer» A. mutual inductance | |
| 107. |
LVDT used for measurement of |
| A. | temperature |
| B. | displacement measurement |
| C. | resistance |
| D. | voltage |
| Answer» B. displacement measurement | |
| 108. |
Electrical strain gauge works on the principle of |
| A. | variation of resistance |
| B. | variation of capacitance |
| C. | variation of inductance |
| D. | variation of area |
| Answer» A. variation of resistance | |
| 109. |
Commonly used elements for wire strain gauges are |
| A. | nickel and copper |
| B. | nickel and gold |
| C. | gold and brass |
| D. | silver and aluminium |
| Answer» A. nickel and copper | |
| 110. |
C.R.O gives |
| A. | actual representation |
| B. | visual representation |
| C. | approximate representation |
| D. | incorrect representation |
| Answer» B. visual representation | |
| 111. |
CRO is a |
| A. | fast x-y plotter |
| B. | slow x-y plotter |
| C. | medium x-y plotter |
| D. | not a plotter |
| Answer» A. fast x-y plotter | |
| 112. |
Gauge factor in a strain gauge must be |
| A. | high |
| B. | low |
| C. | medium |
| D. | small |
| Answer» A. high | |
| 113. |
Strain gauge measurement involves |
| A. | wheatstone bridge |
| B. | kelvin bridge |
| C. | de sauty’s bridge |
| D. | anderson bridge |
| Answer» A. wheatstone bridge | |
| 114. |
Strain gauge used for measurement of |
| A. | temperature |
| B. | resistance |
| C. | inductance |
| D. | displacement |
| Answer» D. displacement | |
| 115. |
Deflection system of a CRT consists of |
| A. | 4 plates |
| B. | 6 plates |
| C. | 2 plates |
| D. | 8 plates |
| Answer» C. 2 plates | |
| 116. |
Electrical transducers generate |
| A. | biological signals |
| B. | chemical signals |
| C. | physical signals |
| D. | electrical signals |
| Answer» D. electrical signals | |
| 117. |
How do passive transducers develop electrical signals |
| A. | using a transformer |
| B. | using internal source |
| C. | using external source |
| D. | using a diode |
| Answer» C. using external source | |
| 118. |
A transducer must be |
| A. | quick in response |
| B. | slow in response |
| C. | medium in response |
| D. | very slow in response |
| Answer» A. quick in response | |
| 119. |
McLeod gauge used for measurement of |
| A. | high pressure |
| B. | low pressure |
| C. | very high pressure |
| D. | pressure |
| Answer» B. low pressure | |
| 120. |
Temperature transducers make use of |
| A. | change in resistivity |
| B. | change in length |
| C. | change in area |
| D. | change in capacitance |
| Answer» A. change in resistivity | |
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