Test: Docks, Harbours & Tunnel Engineering - 1
10 Questions MCQ Test GATE Civil Engineering (CE) 2023 Mock Test Series | Test: Docks, Harbours & Tunnel Engineering - 1
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When a ship floats at its designed water line, the vertical distance from water line to the bottom of the ship is known as
Beam is the width of the midship section at water line. Free board is equal to difference between depth and draft.
The maximum harbour depth below lowest low water is generally equal to
The minimum diameter of turning basin, where ships turn by going ahead and without tug assistance should be
In "full face" method of constructing tunnel, the first operation relates to
Excavation of small sized heading (drift) is done centrally at top or bottom of the face in the drift method.
In heading and benching method the top portion is driven in advance of the bottom portion, in full face method the whole section is excavated once for all, It is suitable for tunnels of small cross- sections area say up to 3 m diameter.
Which one of the following is considered to be an advantage of the heading and benching method of tunnel construction?
Heading and benching method is used when the tunnel section is very large and quality of rock is not very satisfactory i.e., the rock is unstable. In self supporting rocks, the top heading advance are round ahead of the bottom heading. In unstable (broken or non self supporting rocks), the bench provides platform for timber Supports to the heading.
Consider the following statements in regard to Beaufort scale for wind speeds.
1. The Beaufort number ranges from 1 to 12
2. Higher Beaufort number indicates higher speed of wind
3. Beaufort number for calm is smalls and for hurricane is highest
Which of these statements are correct?
The Beaufort number ranges from 0 to 12. The Beaufort number for calm is 0 with 1.6 km/hr velocity and for hurricane, the Beaufort number is 12 with velocity greater than 120 km/hr.
At a given port, the fetch is 400 nautical miles, the maximum height of storm wave will be
It is given by,
where F is in nautical miles and h is in feet.
In a two lane channel, bottom width of channel is given by
Minimum width of ship clearance shall be where “B" is beam of the design vessel
Littoral draft as bed load is proportional to
Where V = Velocity, G = Specific gravity of transported material,
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