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Maths Group11
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The main purpose of this channel is to: 1. Print various Maths questions. 2. Publishing various books. 3. Print various short notes. Share it with your friends! Hirriyyoota keessaniif share godha!
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A 200N force is required to be applied at one end of 1m long lever. If the distance from the effort to fulcrum is 80cm, inorder to lift a load of 600N placed at the other end. What is the efficiency of the lever?
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If the efficiency of one machine is 100%, then which one of the following is not true?
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Which one of the following statement is true about simple machines?
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Which one of the following statement is true about the classes of lever in simple machines?
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If an inclined plane of 4m length and 1m height has an efficiency of 0.5, what is its mechanical advantage?
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A screw shaft has a diameter of 4cm and its adjacent threads are 0.314cm apart. What is the velocity ratio of the screw?
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A 10cm long and 2cm wide metal wedge is used to split a wood. What is the velocity ratio of the wedge?
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An effort is 200N is applied on to a wedge of 4cm thick and 12cm long to split a log of 500N into parts. Then what is the efficiency of the wedge?
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A simple machine has an efficiency of 0.75 and velocity ratio 12. Then what is the load that can be moved if an effort of 100N is applied?
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A simple machine is able to move a 400N load a distance of 20cm when a force of 20N is moved the distance of 5m, then what is the actual mechanical advantage and the efficiency of the machine ?
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Which one of the following statement is not true about the purposes of simple machines?
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