GATE Naval Architecture and Marine Engineering Practice Quiz

Question 1

A vertical rectangular plate of width b and height h is fully submerged in a liquid with its top edge at the free surface. What is the magnitude of the resultant hydrostatic force on one side of the plate?

Accepted Answer

rho g b h^2 / 2

Question 2

A horizontal circular plate is submerged in a liquid at a uniform depth z below the free surface. Which statement is correct about the hydrostatic pressure distribution on the plate?

Accepted Answer

Pressure is uniform over the entire plate

Question 3

A vertical rectangular gate of width 1.5 m and height 2 m has its top edge 1 m below the free surface of water. Taking rho g = 9810 N/m^3, the hydrostatic force on the gate is closest to:

Accepted Answer

58.86 kN

Question 4

A vertical circular hatch of radius 0.5 m is mounted on a ship side with its center 2 m below the water surface. Taking rho g = 9810 N/m^3, the hydrostatic force on the hatch is closest to:

Accepted Answer

15.41 kN

Question 5

A vertical rectangular plate of width b and height h has its top edge at the free surface. The depth of center of pressure below the free surface is:

Accepted Answer

2h/3

GATE Naval Architecture and Marine Engineering

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