VERNIER CALIPER

Question 1

a device invented by Pierre Vernier in 1631 to get greater accuracy in measurement

Answer 1

VERNIER CALIPER

Question 2

Used to take external measures of objects

Answer 2

OUTSIDE JAWS (LARGER)

Question 3

Used to take internal measures of objects

Answer 3

INSIDE JAWS (SMALLER)

Question 4

Used to measure the depth of objects

Answer 4

DEPTH PROBE

Question 5

Used for adjusting the space between the jaws and the level is also used for locking the jaws

Answer 5

KNOBBED WHEEL/ RETAINER

Question 6

used to block movable part

Answer 6

KNOBBED WHEEL/ RETAINER

Question 7

TWO SCALES IN VERNIER CALIPER

Answer 7

Main Scale
Vernier Scale/ Auxiliary Scale

Question 8

smallest accurate reading that could be obtained directly from the vernier scale

Answer 8

LEAST COUNT

Question 8

n divisions on the vernier scale correspond to

Answer 8

division on the main scale

Question 9

It is equal to the ratio of the length of the smallest division in the main scale, S, and the number of divisions in the vernier scale, n.

Answer 9

LEAST COUNT

Question 10

main-scale reading before the zero mark of the vernier scale

Answer 10

p

Question 11

nth vernier-division that coincides with the main-scale division

Answer 11

q

Question 12

ACTUAL READING FORMULA

Answer 12

p + (q x least count)