Depth Micrometer Functionality and Measurements

The video tutorial explains the operation of a depth micrometer, focusing on its components, how to adjust the rod, and how to read the scale. It highlights the unique backward scale reading and the process of calculating measurements using graduations on the thimble and sleeve. The tutorial concludes with a demonstration of determining the final measurement, emphasizing accuracy to three decimal places.

What is the primary function of the thimble in a depth micrometer?

• To turn and move the rod

• To adjust the sleeve

• To measure temperature

• To lock the rod in place

How can the rods in a depth micrometer be adjusted?

• By rotating the sleeve

• By pressing a button

• By loosening a nut and replacing the rod

• By using a screwdriver

What is the travel range of each rod in a depth micrometer?

• 2 inches

• 0.5 inch

• 1 inch

• 3 inches

What is the purpose of the rod extending out the back of the depth micrometer?

• To measure depth

• To balance the micrometer

• To adjust the sleeve

• To calibrate the device

How is the scale on a depth micrometer different from a regular micrometer?

• It is read from top to bottom

• It is read in metric units

• It is read from left to right

• It is read backwards

What does each main graduation on the thimble represent?

• One tenth of an inch

• One inch

• One hundredth of an inch

• One thousandth of an inch

How many unnumbered graduations are there between each main graduation on the thimble?

• Two

• Three

• Four

• Five

What is the final calculated size in the example provided in the video?

• 583 thousandths of an inch

• 358 thousandths of an inch

• 835 thousandths of an inch

• 538 thousandths of an inch

How accurate is the depth micrometer compared to a micrometer caliper?

• To three decimal places

• To two decimal places

• To one decimal place

• To four decimal places