MCQOPTIONS
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MCQOPTIONS
This section includes 106 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering Questions knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
A rheostat differs from potentiometer in the respect that it_____________? |
| A. | has lower wattage rating |
| B. | has higher wattage rating |
| C. | has large number of turns |
| D. | offers large number of tapping |
| Answer» C. has large number of turns | |
| 102. |
A resistance having rating 10 ohms, 10 W is likely to be a__________? |
| A. | metallic resistor |
| B. | carbon resistor |
| C. | wire wound resistor |
| D. | variable resistor |
| Answer» D. variable resistor | |
| 103. |
A nichrome wire used as a heater coil has the resistance of 2 £2/m. For a heater of 1 kW at 200 V, the length of wire required will be_____________? |
| A. | 80 m |
| B. | 60 m |
| C. | 40 m |
| D. | 20 m |
| Answer» E. | |
| 104. |
A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is___________? |
| A. | 400 Q |
| B. | 600 Q |
| C. | 800 Q |
| D. | 1000 Q |
| Answer» D. 1000 Q | |
| 105. |
A glass rod when rubbed with silk cloth is charged because__________? |
| A. | it takes in proton |
| B. | its atoms are removed |
| C. | it gives away electrons |
| D. | it gives away positive charge |
| Answer» D. it gives away positive charge | |
| 106. |
A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is_____________? |
| A. | 6.4 A, 6.9 A |
| B. | 6.4 A, 9.6 A |
| C. | 4.6 A, 6.9 A |
| D. | 4.6 A, 9.6 A |
| Answer» C. 4.6 A, 6.9 A | |