Docks & Harbours MCQ Questions Answers – Civil Engineering
1)The minimum diameter of turning basin, where ships turn by going ahead and without tug assistance should be
a) L
b) 1.5 L
c) 2.0 L
d) 4.0 L
2) At a given port, the fetch is 400 nautical miles, the maximum height of storm wave will be
a) 2.073 m
b) 8.169 m
c) 9.144 m
d) 6.8 m
3) Minimum width of ship clearance shall be
a) B or 30 m
b) 1.5 B or 50 m
c) 1.5 B
d) 50 m
4) A ship is berthed in a chamber and lifted by principles of buoyancy. Such a chamber is called
a) dry dock
b) wet dock
c) floating dock
d) refuge dock
5) Which one of the following is a component of a shield for tunneling ?
a) Liner plate
b) Trench jack
c) Stiffener
d) Cutting edge
6) The lowest tide which occurs in half lunar month is called
a) spring tide
b) neap tide
c) lunar tide
d) tidal bore
7) Ribs are used for strengthening and stiffening the liner plate for tunnels of diameter greater then
a) 2 m
b) 3 m
c) 4 m
d) 5 m
8) Quays are platforms provided
(a) along shore
(b) breakwaters
(c) perpendicular to shore
(d) both (a) and (b)
9) As per Berlin’s formula, the length of wave is meters is given by
a) 1.34 t2
b) 1.56 t2
c) 1.74 t2
d) 1.94 t2
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10) The total height of tides is about ______ times that of neap tides.
(a) 1.2 to 1.4
(b) 1.5 to 2.0
(c) 2 to 2.4
(d) 2.5 to 3.0