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WorkShop Calculation and Science
LEVERS AND SIMPLE MACHINES
Set 1
Set 1
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Q12824
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What is the ratio between the distance moved by the effort to the distance moved by the load?
A
Mechanical advantage
B
Velocity ratio
C
Efficiency
D
Fulcrum
Q12825
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What is the mechanical advantage, if a load of 1000 kg is lifted by a simple machine and effort applied is 250 kg?
A
6
B
8
C
3
D
4
Q12826
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What is the velocity ratio of a wheel and axle if the radii of wheel and axle are 375 mm and 75 mm respectively?
A
3
B
4
C
5
D
6
Q12827
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What is the velocity ratio of a simple machine of a mass 120 kg is lifted to a height of 5 metres by a force of 60 kg moving 15 metre. Calculate velocity ratio?
A
1
B
2
C
3
D
4
Q12828
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What is the efficiency of a simple screw jack having velocity ratio is 314.2 and mechanical advantage is 220?
A
0.6
B
0.65
C
0.7
D
0.75
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