Mechanical Aptitude 4

Mechanical Aptitude 4 - Pulleys

1.    Which one of the following has the greatest mechanical advantage (MA)?

Pulley system (block and tackle) with 2 support ropes.    Pulley system (block and tackle) with 1 support ropes.

Pulley system (block and tackle) with 4 support ropes.    Pulley system (block and tackle) with 3 support ropes.

2.    Which one of the following has the smallest mechanical advantage (MA)?

Pulley system (block and tackle) with 2 support ropes.    Pulley system (block and tackle) with 4 support ropes.

Pulley system (block and tackle) with 3 support ropes.    Pulley system (block and tackle) with 1 support ropes.

3.    Which one of the following has an MA of 4?

Pulley system (block and tackle) with 1 support ropes.    Pulley system (block and tackle) with 2 support ropes.

Pulley system (block and tackle) with 3 support ropes.    Pulley system (block and tackle) with 4 support ropes.

4.    Which one of the following has an MA of 2?

Pulley system (block and tackle) with 2 support ropes.    Pulley system (block and tackle) with 1 support ropes.

Pulley system (block and tackle) with 3 support ropes.    Pulley system (block and tackle) with 4 support ropes.

5.    Which one of the following requires an input force of 60N to lift the object?

Pulley system (block and tackle) with 1 support ropes.    Pulley system (block and tackle) with 3 support ropes.

Pulley system (block and tackle) with 2 support ropes.    Pulley system (block and tackle) with 4 support ropes.

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