Question

Name the instrument which can measure accurately the thickness of a paper.
A) A vernier calliper
B) A screw gauges
C) A meter scales
D) All of the above

Answer 1

Hint: A measuring instrument is an apparatus for measuring a physical quantity. In the physical sciences, quality assurance, and engineering, measurement is the activity of obtaining and comparing physical quantities of real- world objects and events.

Complete answer:
A screw gauge:
Screw pitch gauges are used as a credential tool in finding the pitch of a thread that is on a screw or in a punctured hole. This tool is used as a correctness measuring instrument, it allows the user to find the profile of the given thread and quickly classify the thread by shape and pitch. This device also saves time, in that it removes the need for the user to measure and calculate the pitch of the threaded item.
A vernier calliper:
A vernier scale is a vision aid to take a precise estimated reading between two outset markings on a parallel scale by using mechanical incorporation; therefore, increasing the resolve and reducing the measurement unpredictability by using vernier acuteness to reduce human estimated error.
Therefore, the screw gauge is an instrument used for measuring accurately the diameter of a thin wire, thickness of a sheet of metal or the sheet of paper.

Hence, the option (B), a screw gauge is the correct answer.

Note: Measure just the radius of the circle if it is a very large object. The radius is denoted as the distance from the centre to any point on the circle to its end. Multiply the radius by two to obtain the measurement for the diameter. Screw gauge is used to find the thickness and the vernier calliper is used to measure the length.