Related Questions

A head comprises of straight flange section, corner torus, section and central dished section. Crown radius and knuckle radius in a head is related respectively to the
A Central dished section and corner torus section
B Corner torus section and central dished section
C Central dished section and straight flange section
D Straight flange section and corner torus section
The radius of a dished head is taken approximately as
A One fourth
B Half
C One
D Two
Generally, elliptical dished heads
A Are manufactured on 2 : 1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m2
B Resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter
C Are approximately as strong as seamless cylindrical shell having the corresponding I.D. and O.D.
D All of the above
Experts say that 25% of all serious bicycle accidents involve head injuries and of all such head injuries, 80% are fatal. What percentage of all serious bicycle accidents involve fatal head injuries?
A 6%
B 20%
C 55%
D 105%
Expert says 25% of of serious bicycle accidents involved head injury and that of all head injuries 80% are fatal. What percentage of serious bicycle accidents involve fatal head injuries?
A 16%
B 20%
C 55%
D 105%
When they had a meeting seven company executives __ T, U, V, W, X, Y and Z ___ sit at a rectangular table .Three executives sit along one side of the table , and three sit along the other side, each directly opposite one of the other three. The seventh sits at the head of the table . There is no seat at the foot of the table . Ualways sits in one of te two seats farthest from the head of the table. Y and V always sit next to each other .V never sits next to Z . If Z does not sit at the head of the table, W sits there. If W sits directly opposite T, X must sit next to which of the following excutives?
A T
B U
C V
D Z
If Hg is the gross or total head and hf is the head lost due to friction, then net or effective head (H) is given by
A $${\text{H}} = \frac{{{\text{Hg}}}}{{{\text{hf}}}}$$
B H = Hg × hf
C H = Hg + hf
D H = Hg - hf
The static head of a centrifugal pump is equal to the _________ of suction head and delivery head.
A Product
B Difference
C Sum
D None of these
The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the
A Discharge
B Suction
C Suction minus vapor pressure of the liquid at suction temperature
D Discharge minus vapor pressure of the liquid at the discharge temperature
Khan observes that if flight 409 is cancelled, then the manager could not possible arrive in the time for the meeting . But the flight was not cancelled. Therefore, Khan concludes, the manager will certainly be on time . Halima replies that even if Khan's premises are true, his argument is fallacious. And therefore, she adds, the manager will not arrive on time after all. Which of the following is the strongest thing that we can properly say about this discussion ?
A Halima is mistaken in thinking Khan's argument to be fallacious, and so her own conclusion is unwarranted.
B Halima is right about Khan's argument, but nevertheless her own conclusion is unwarranted
C Since Halima is mistaken about Khan's argument , her own conclusion must be false.
D Halima is right about Khan's argument, but nevertheless her own conclusion is false

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