The condilion for a lifting machine to be reversible is that its efficiency should be
A). less than 50%
B). more than 50%
C). more than 66.67%
D). equal to 100%
1. Shingle is
3. The floor area includes the area of the balcony up to
5. In primary sedimentation, the 0.2 mm inorganic solids get separated if specific gravity is
6. In Froude model law, the scale ratio for velocity (i.e. Vm/Vp) will be (Consider Lr = Lm/Lp)
8. Castigliano’s first theorem is applicable
9. Cash money and credit necessary to establish and operate an enterprise are generally called ______.