Understanding Vernier Calipers

The video tutorial introduces measurement tools, highlighting the limitations of simple rulers. It discusses the invention of Vernier Calipers by Pierre Vanya in 1630, which offer greater accuracy. The tutorial explains the uses of Vernier Calipers, such as measuring lengths, diameters, and depths. It describes the structure of Vernier Calipers, including the main scale, vernier scale, and various jaws. The functionality of the calipers is detailed, emphasizing the precision and versatility of the tool in various measurement tasks.

What is a common limitation of using a simple ruler for measurement?

• It cannot measure length.

• It is too expensive.

• It may not provide accurate measurements.

• It is difficult to use.

Who invented the Vernier Calipers?

• Isaac Newton

• Pierre Vanya

• Albert Einstein

• Galileo Galilei

Which of the following is NOT an application of Vernier Calipers?

• Measuring the outer diameter of a cylinder

• Measuring the length of an object

• Calculating the weight of an object

• Determining the depth of a hole

What is the main scale of a Vernier Caliper typically made of?

• Aluminum

• Steel

• Wood

• Plastic

What is the typical length of the main scale on a Vernier Caliper?

• 10 centimeters

• 15 centimeters

• 20 centimeters

• 25 centimeters

How many divisions does the Vernier scale have compared to the main scale?

• Ten divisions equal to nine on the main scale

• Nine divisions equal to ten on the main scale

• Nine divisions equal to nine on the main scale

• Ten divisions equal to ten on the main scale

What feature helps in fixing the Vernier scale at a desired position?

• A spring-supported button

• A rubber band

• A magnetic strip

• A locking screw

Which part of the Vernier Caliper is movable?

• Steel strip

• Vernier scale

• Main scale

• Fixed jaw

Which jaws are used to measure the internal dimensions of an object?

• Jaws J2 and J4

• Jaws J1 and J3

• Jaws J3 and J4

• Jaws J1 and J2

What is the purpose of the external jaws on a Vernier Caliper?

• To measure internal dimensions

• To measure external dimensions

• To measure temperature

• To measure weight