Draw a neat labeled diagram of vernier calipers. Name its main parts and state their functions.

Explanation:

Lower Jaws: The upper jaws of a vernier caliper are the most visible feature. These jaws are intended to grab things firmly between them in order to measure them.

Upper Jaws: The upper jaws are smaller in size and are coupled to the vernier caliper's upper section. One of these jaws is fixed and the other is movable, just like the lower jaws.

Depth Rod: Another valuable element of the vernier caliper is the depth rod, which can be used to measure the depths of holes or steps. The depth rod is a slender rod at the bottom of the main scale.

Main Scale: The main scale is the major scale that runs down the body of the vernier caliper. It is graduated in centimeters and millimeters or inches, depending on the type of units it is designed for.

Vernier Scale: The Vernier scale is the caliper's distinguishing feature and what gives it its name. The vernier caliper is a tiny scale attached to the main scale that moves along it as the jaws open and close.

Thumb Screw: The thumb screw is placed near the bottom of the vernier scale. Its aim is to offer a solid grip that allows the user to effortlessly slide the jaws and adjust the position of the jaws and depth rod.

Lock Screw: Once the object is appropriately positioned, the lock screw is used to secure the position of the jaws so that readings can be obtained without worry of ruining the position.

Final Answer:

Hence, Diagram of vernier calipers is attached below.