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The lines representing the sections of ships or the boundaries of waterplanes are in
general fair curves which cannot be represented by a single mathematical equation.
To apply various arithmetical methods, it is assumed that the curved boundaries
consist of a series of parabolic curves. Which among the following methods is mainly
used for specific calculations such as stability ?

A) Trapezoidal rule B) Simpson’s rule

©) Tchebycheff’s rule D) Midpoint rule

The power available in the crank shaft of an engine after deducting the frictional loss
in the working of an engine is known as

A) Shaft horse power B) Effective horse power

C) Indicated horse power D) Brake horse power

The form is used to describe the shape of ship’s hull. Comparison of one ship’s form
with another is made using a number of coefficients. The ratio between the actual
volume of the underwater form to the volume of a block with length equal to the length
between perpendiculars, breadth equal to the breadth of the vessel and depth equal
to the draft of the vessel is known as

A) Mid ship section area coefficient

B) Block coefficient

C) Prismatic coefficient
D) Waterplane area coefficient

Choose the odd one among the following otter boards
A) Suberkrub B) Rectangular flat
C) Rectangular curved D) V-form

ர 9000 m of a single yarn weigh 10g, which among the following is the correct
designation of this yarn ?

A) 10 Tex 8) 10 Td

0) 10Nm D) 10 Ne

The triangular piece of webbing used in a trawl to give a smooth catenary curve to
the head rope of the trawl is known as

A) Overhang B) Quarter

C) Flapper D) Jib