Physics
Viscosity (1.)Essential property of good lubricant (a)High viscosity (b)High surface tension (c)High density (d)none of them....
SSB INTERVIEWS & WRITTEN EXAMS
NDA, CDS, TEC, TGC, NCC(SPL ENT), JAG, UES, SSC(TEC), AEC, TA, ACC, AFCAT, X&Y GROUP, NAVY (AA, SSR, MR), CPF, COAST GUARD