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WorkShop Calculation and Science
LEVERS AND SIMPLE MACHINES
Set 2
Set 2
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Q12829
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How much load is lifted if an effort of 25 kg is applied to a simple machine having velocity ratio of 4 and efficiency 75%?
A
65 kg
B
70 kg
C
75 kg
D
80 kg
Q12830
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What is the name of fixed or supporting point of a lever?
A
Mechanical advantage
B
Fulcrum
C
Effort
D
Load
Q12831
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What effort required to lift a load of 150 kg in a wheel and axle, if the velocity ratio is 2.5 and the efficiency of the machine is 75%?
A
70 kg
B
80 kg
C
90 kg
D
100 kg
Q12832
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What is the distance of the load from the fulcrum called?
A
Effort arm
B
Load arm
C
Power arm
D
Effort
Q12833
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Which is example for first order lever?
A
A wheel barrow
B
A pair of scissors
C
Fire tongs
D
Lime squeezer
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