A kentometer is

A.A device used for measurement of kinetic energy
B.A device used for the measurement of mass
C.A device used for the measurement of temperature
D.A manometric device used for measurement of vacumms
E.A simple device used for measurements of kinetic energy

Marform is

A.A darwing process that forms metal sheet by using a movable steel punch and a rubber headed ram
B.Is a foming process on lathe in which movement of tool is neither governed by cross slide nor by compound slide
C.Is a forming tool and on lathe machine to generate spherical surfaces
D.A work holding device in which plane of rotation can be changed while working
E.Is a gauge used to check regular surfaces