179) According to I.B.R., the efficiency of a triple riveted butt joint with double straps of unequal width (5 rivets per pitch length) should be

180) When two non-parallel or intersecting but coplaner shafts are connected by gears, the arrangement is known as bevel gearing.

181) According to Indian standards, a bolt thread of 6 mm size of coarse pitch and with allowance on the threads and normal tolerance grade is designated as

182) When a beam of rectangular cross-section of width b and depth d, is subjected to a shear force F, the maximum shear stress induced will be

183) In designing a connecting rod, it is considered like __________ for buckling about Y-axis.