Vernier Calipers
 1) What is vernier constant? zero correction least count least constant angular vernier

 2) What is the function of sliding strip or rod? to measure the radius of certain objects to measure the diameter of certain objects to measure the width of certain objects to measure the depth of certain objects

 3) Why is a slide callipers called a 'Vernier Callipers'? It is the Latin name for 'slide callipers' It was first designed by a French mathematician, Pierre Vernier. Its idea was first conceived at Vernier in southern Germany. None of the above

 4) Which of the following measurements cannot be made by a vernier calliper? Measuring the internal diameter of a cylindrical object or the depth of a vessel. Measuring the height of a tower. Measuring the outer diameter of a spherical or cylindrical object. Measuring the length of an iron nail.

 5) Which of the following is a true statement? All of the above. Zero correction is algebraically added to the observed reading Zero error is a algebraically subtracted from the observed reading. Negative of zero error is zero correction.

 6) Which of the following is incorrect with regard to zero error? It occurs if the zeros of main scale and vernier scale do not coincide. It is positive when vernier zero is to the left of main scale and negative if it is to the right. It arises due to wear and tear of the instrument. It is the error in the vernier callipers.

 7) Least count: metre scale - 1mm, vernier callipers - 0.1mm, screw guage and spherometer - 0.01mm. Which has the least accuracy? Metre scale Spherometer Vernier callipers Screw guage

 8) Vernier Constant is given by: V.C.= 1 V.S.D.-1 V.S.D V.C.= 1 M.S.D./1 V.S.D V.C.= 1 M.S.D.+1 V.S.D V.C.= 1 M.S.D.-1 V.S.D

 9) Principle of vernier callipers: N vernier scale division = (N/2) main scale divisions. N vernier scale division = (N-1) main scale divisions. N main scale division = (N-1) vernier scale divisions. N main scale division = N vernier scale divisions.

 10) A student used a vernier caliper to measure the length of his pencil.He found that the main scale showed a reading of 8.3 and vernier scale coincides with 5th position to the main scale.What was the correct measurement of the length of the pencil? 8.8 8.35 8.3 8.5

 11) The diagram below shows the part of a vernier caliper used to measure the diameter of a soft drink can.What is the reading shown? 6.37 6.34 6.47 6.44

 12) During the measurement of the inner diameter of a measuring jar, Arun got the reading as follows . What is the reading shown? 3.54 cm 3.5 cm 3.34 cm 3.03 cm