MODULE 12: MICROMETER CALIPER

Question 1

device used for the precise measurement of very small distances

Answer 1

MICROMETER CALIPER

Question 2

the object to be measured in micrometer caliper is placed between

Answer 2

anvil space and spindle face

Question 3

C-shaped body that holds the anvil and barrel

Answer 3

Frame

Question 4

the shiny part that the spindle moves toward, and that the sample rests against

Answer 4

anvil

Question 5

the stationary round part with the linear scale

Answer 5

sleeve/ barrel/ stock

Question 6

knurled part that one can tighten to hold the spindle stationary

Answer 6

lock nut/ lock-ring/ thimble lock

Question 7

it is inside the barrel

Answer 7

screw

Question 8

In German, what does measuring screw mean?

Answer 8

Messschraube

Question 9

cylindrical part that thimble causes to move toward the anvil

Answer 9

Spindle

Question 10

the part that one’s thumb turns; graduated markings

Answer 10

thimble

Question 11

device on end of handle that limits applied pressure by slipping at a calibrated torque

Answer 11

ratchet

Question 12

linear scale

Answer 12

sleeve

Question 13

least count of the micrometer is obtained by dividing

Answer 13

pitch over number of divisions

Question 14

linear distance moved by the inner edge of the thimble

Answer 14

pitch of the spindle

Question 15

smallest linear scale division

Answer 15

pitch

Question 16

symbol for the exact linear-scale reading on the sleeve

Answer 16

p

Question 17

symbol for the nth division line on the thimble that coincides with the reference line on the linear

Answer 17

q

Question 18

thimble reads

Answer 18

q x LC

Question 19

What is p and the actual reading?

SLEEVE FULL EXPOSED:
12 mm

SLEEVE 1/2 mm:
0.50 mm

q = 16

smallest linear division: 0.50 mm
total number of divisions: 50

Answer 19

p = 12.50
Actual reading : 12.66