InterviewSolution
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InterviewSolution
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State if the following statements are true or false.1. There are four types of simple machines.2. The load and effort can act at a single point in a lever.3. A screw is a special case of an inclined plane.4. The effort required to insert a screw into wood is less than that needed to insert a nail into wood.5. A single movable pulley is a pulley that has its axis of rotation fixed.6. A rotation spindle tap is an example of a wheel-and-axle arrangement.7. A sewing needle is a wedge type simple machine.8. Work done by a machine is always more than the work done on a machine. |
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Answer» 1. False. There are six types of simple machines. 2. False. The load and effort cannot act at a single point in a lever. 3. True 4. True 5. False. A single fixed pulley is a pulley that has its axis of rotation fixed. 6. True 7. True 8. False. Work done by a machine is always less than the work done on a machine. |
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