Question

Name the instrument which can measure accurately the internal diameter of the neck of a water bottle.
A. Vernier calipers
B. Screw gauge
C. Meter scale
D. All of the above

Answer 1

Hint: Vernier caliper can be used to measure the diameter of any object.
A Screw gauge is used to measure the thickness of wires because of the preciseness of this.

Complete step by step answer:
You have to measure the internal diameter of the neck of the water bottle.
Option A: Vernier calipers are used to measure the diameter of the object. It has two jaws whose flat faces direct one another on one side of the scale. They are used to measure the outer diameter of the object. On the other side of the scale, the other two jaws flat face directly opposite to one another. They are used to measure the inner diameter of the object. Therefore, this is the correct option.
Option B: A screw gauge is used to measure the thickness of objects. Therefore, this is the incorrect option.

Option C: A Meter scale is used to measure the distance between two points on a straight line. For your purpose, this may be used. But this does not give you an accurate measurement. Therefore, this is the incorrect option.

Option D: As only one option is correct, therefore, this is the incorrect option.

So, your correct option is A Vernier caliper.

So, the correct answer is “Option A”.

Note:
Always use the best instrument for your measurement. Like here, you can use the meter scale to measure the diameter because you have to calculate the distance between two endpoints. But there could be errors in the measurement.