c PV P V PVT P V T 5 A steel metre scale is to be ruled so

Last updated: 6/9/2023

c PV P V PVT P V T 5 A steel metre scale is to be ruled so that the millimetre intervals are accurate within about 5 x 10 5 mm at a certain temperature The maximum temperature variation allowable during the ruling of the millimetre marks is a for steel 11 x 10 6 C a 8 C c 4 5 C b 9 C d 10 C