Vernier Caliper Measurement Techniques

The video tutorial explains how to read a vernier caliper, focusing on the main and vernier scales. It details the graduations on the main scale, which represent hundred-thousandths of an inch, and how to interpret the vernier scale for precise measurements. The tutorial also covers calculating the total measurement by combining readings from both scales. Finally, it provides tips for ensuring accuracy, such as cleaning the measuring faces and checking for light between them, emphasizing the importance of calibration for reliable results.

What is the accuracy of the vernier caliper discussed in the video?

• 0.1 inches

• 0.01 inches

• 0.001 inches

• 0.0001 inches

What do the small numbers next to the zero on the main scale represent?

• Hundred thousandths of an inch

• Tenths of an inch

• Hundredths of an inch

• Thousandths of an inch

How many unmarked graduations are there between 0 and 1 on the main scale?

• Two

• Three

• Four

• Five

What is the value of each unmarked graduation between 0 and 1 on the main scale?

• 25,000

• 10,000

• 20,000

• 15,000

When reading the vernier scale, what does each graduation represent?

• One thousandth of an inch

• One hundredth of an inch

• One inch

• One tenth of an inch

If the vernier scale shows two graduations past 15, what is the measurement?

• 0.017

• 0.015

• 0.018

• 0.016

What is the final measurement if the main scale reads 1 inch 150 thousandths and the vernier scale reads 17 thousandths?

• 1.177 inches

• 1.150 inches

• 1.167 inches

• 1.170 inches

What should you do to clean the measuring faces of the vernier caliper?

• Use a cloth

• Use a brush

• Use water

• Use a piece of paper

What should you check to ensure the measuring faces are tightly together?

• Check for rust

• Check for scratches

• Check for light between them

• Check for dust

What is the recommended trust level for the vernier caliper's accuracy in a machine shop?

• 11 to 15 thousandths

• 5 to 10 thousandths

• 3 to 4 thousandths

• 1 to 2 thousandths