EASY
10th ICSE
IMPORTANT
Earn 100

The figure below shows a mango cutter in use. Mark the positions of load, effort and fulcrum in figure. Name the type of lever.

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Important Questions on Machines

MEDIUM
10th ICSE
IMPORTANT
What is a movable pulley? How it is different from a fixed pulley?
HARD
10th ICSE
IMPORTANT
Show a neat diagram to explain the working of a single fixed pulley. Calculate mechanical advantage and velocity ratio of this pulley.
EASY
10th ICSE
IMPORTANT
What is the use of single fixed pulley although its mechanical advantage is 1 or less than 1?
MEDIUM
10th ICSE
IMPORTANT
Show a neat diagram to explain the working of single movable pulley. Calculate mechanical advantage and velocity ratio of this pulley.
MEDIUM
10th ICSE
IMPORTANT
What effort is needed to lift a load of 100 kgf from a single movable pulley (in kgf)?
EASY
10th ICSE
IMPORTANT
State the only problem faced with a single movable pulley. How is this problem overcome?
HARD
10th ICSE
IMPORTANT
How many movable pulleys are there in a system of  3 pulleys? What is the mechanical advantage and velocity ratio of this system? If efficiency of system is 100%, what effort is needed to lift a load of 350 kgf attached to it?
MEDIUM
10th ICSE
IMPORTANT
How many movable pulleys are there in a system of 4 pulleys? What is the mechanical advantage and velocity ratio of this system? If the efficiency of the system is 80%, what effort is required to lift a load of 40 kgf from this system?