Mechanical Systems Quiz

What is the main benefit of converting energy into useful work through mechanical systems?

• It saves time

• It reduces noise

• It enables tasks that are difficult or impossible for humans alone

• It increases the cost

Why is a car jack used to lift a vehicle?

• It reduces the weight of the car

• It multiplies the applied force

• It changes the car's shape

• It decreases the car's size

What is the benefit of using a car jack according to the explanation?

• It makes the car lighter

• It makes lifting easier

• It makes the car faster

• It makes the car smaller

In a third class lever, where is the effort applied?

• Between the load and the fulcrum

• At the fulcrum

• At the load

• On the opposite side of the fulcrum

Which lever class has the load between the fulcrum and the effort?

• First class lever

• Second class lever

• Third class lever

• Fourth class lever

What class of lever principle does a Dolly belong to?

• First class

• Second class

• Third class

• Fourth class

What class of lever principle does a Dolly belong to?

• First class

• Second class

• Third class

• Fourth class

What class of lever principle does a dolly belong to?

• First-class lever

• Second-class lever

• Third-class lever

• Fourth-class lever

What are levers classified into based on?

• Material

• Size

• Fulcrum position

• Color

What is a wedge typically made of?

• Plastic

• Wood or metal

• Glass

• Rubber