Directions (Q. No. 1 to 5): |
Read the following text and answer the following questions on the basis of the same: |
Bottle Dynamo: A bottle dynamo is a small generator to generate electricity to power the bicycle light. |
Is is not a dynamo. Dynamo generates DC but a bottle dynamo generates AC. Newer models are now available with a rectifier. The available DC can power the light and small electronic gadgets. This is also known as sidewall generator since it operates using a roller placed on the sidewall of bicycle tyre. |
When the bicycle is in motion, the dynamo roller is engaged and electricity is generated as the tyre spins the roller. When engaged, a dynamo requires the bicycle rider to exert more effort to maintain a given speed than would otherwise be necessary when the dynamo is not present or disengaged. |
Bottle dynamos can be completely disengaged during day time when cycle light is not in use. In wet conditions, the roller on a bottle dynamo can slip against the surface of the tyre, which interrupts the electricity generated. This cause the lights to go out intermittently. |
A) It generates AC only
B) It generates DC only
C) It looks like a bottle
D) It requires no fuel to operate
Correct Answer: A
Solution :
Option [a] is correct Explanation: Dynamo generates DC. But bottle dynamo generates AC. So it is not a dynamo in that sense. But, it generates electricity for bicycle light.You need to login to perform this action.
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