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Test an automobile battery for its serviceability. OBJECTIVE The objective of this practical is to perform different test on battery. By this practical student get knowledge about testing, maintenance & its service. INTRODUCTION The battery is the heart of the automobile electrical system. The battery serve to store electric energy when there is little or no damage for current acts a secondary source of a electrical when the engine is hot running alternatively to meet full requirement of the load on the system. A wide range of batteries varying from 5 to 200hr. Capacity is necessary to meet the requirement of motor industries.

Determine absolute viscosity of diesel fuel using u- tube viscometer Kinematic viscosity is absolute units. The determination is made in a U- Tube viscometer as illustrated in figure. Five tubes, numbered from 0 to 4, are specified and their dimensions are given. The ranges covered are: No. 0-0.5 to 2.0, No. 1-1.5 to 6.0, No. 2-5.4 to 43, No. 3-32 to 260 and No. 4-190 to 1500 centistokes respectively.