A. One pipe
B. Two pipes
C. Three pipes
D. Four pipes
A. Variable cost
B. Incremental cost
C. Fixed cost
D. Supplemental cost
A. are viscous
B. possess surface tension
C. are compressible
D. possess all the above properties
E. possess none of the above properties
A. 15 days
B. 30 days
C. 60 days
D. 90 days
A. meta center should be above e.g.
B. center of buoyancy and e.g. must lie on same vertical plane
C. a righting couple should be formed
D. all of the above
E. none of the above
A. Light in weight
B. Not structurally strong to bear large compressive stress
C. Susceptible to corrosion by sulphuric acid
D. All the above
A. 0.5
B. 0.4
C. 0.515
D. 0.5
E. none of the above