Docks And Harbor Engineering MCQs with Explanations

The length of design vessel + 20% clearance between adjacent vessels is the correct answer to “In basins subjected to strong winds and tide, the length of the berthing area should not be less than”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

Draft is the correct answer to “When a ship floats at its designed water line, the vertical distance from water line to the bottom of the ship is known as”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

(ii) and (iii) are correct is the correct answer to “Consider the following statements in regard to Beaufort scale for wind speeds, (i) The Beaufort number ranges from 1 to 12. (ii) Higher Beaufort number indicates higher speed of wind, (iii) Beaufort number for calm is smallest and for hurricane is highest Of these statements”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

(i) and (iii) are correct is the correct answer to “Dead weight tonnage of a ship (i) varies with latitude and season (ii) is more than displacement tonnage (iii) is the difference between displacement load and displacement light Of these statements”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

4.0 L is the correct answer to “The minimum diameter of turning besin, where ships turn by going ahead and without tug assistance should be”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

Sea walls, bulk heads and revetments is the correct answer to “Which of the following structures are constructed parallel to shore line to develop a demarcating line between land area and water area”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

one – third highest waves is the correct answer to “The significant wave height is defined is the average height of the”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

(2 × Manoeuvring lane) + (2 × Bank clearance lane + ship clearance lane) is the correct answer to “In a two lane channel, bottom width of channel is given by”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

When the dock is full of water is the correct answer to “Which of the following conditions of loading imposes the greatest load on the foundation in case of dry docks”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

(i) and (ii) are correct is the correct answer to “By increasing the rise of lock-gates, (i) The length of the lock gate will increase (ii) Transverse stress due to water pressure on the gate will increase (iii) Compressive force on the gate will increase”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

$$\frac{5}{8}$$ is the correct answer to “For designing the dock, the proportion of ship load assumed to be borne by keel blocks is”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

Results in less damage due to gradual failure is the correct answer to “As compared to wall type breakwater, mound type breakwater”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

(iii) and (iv) are correct is the correct answer to “The maximum harbour depth below lowest low water is generally equal to (i) loaded draft + 1.2 m when bottom is rock (ii) loaded draft + 1.8 m when bottom is soft (iii) loaded draft + 1.2 m when bottom is soft (iv) loaded draft + 1.8 m when bottom is rock”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

1.2 H to 1.25 H above the high water level is the correct answer to “If H is the height of the wave expected, then the height of the breakwater is generally taken as”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

groynes is the correct answer to “Which of the following structures protects the shore by trapping of littoral drift”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

Floating dock is the correct answer to “A ship is berthed in a chamber and lifted by principles of buoyancy Such a chamber is called.”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

B or 30 m is the correct answer to “Minimum width of ship clearance shall be (where “B” is beam of the design vessel)”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

1.5612 is the correct answer to “As per Berlin's formula, the length of wave in meters is given by (Where 't' is the period in seconds for two successive waves to pass the same section.)”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

Staging method is the correct answer to “The most popular method of construction of wall breakwaters is”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

Clapotis is the correct answer to “When a wave strikes a vertical breakwater in deep water, it is reflected back and on meeting another advancing wave of similar amplitude merges and rises vertically in a wall of water. This phenomenon is called”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

(i), (ii) and (iii) are correct is the correct answer to “Consider the following statements. (i) Fender is the cushion provided on the face of the jetty for ships to come in contact, (ii) Slip is the space of water area between two adjacent piers where ships are berthed, (iii) Pier head is a structure constructed near the tip of a break water near the harbour entrance. Of the statements”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

bollard is the correct answer to “Which of the following is a fixed type mooring accessory”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

10° with the face of the dock is the correct answer to “A ship strikes the berth generally at an angle”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

wet docks, floating docks, lift docks, marine railways is the correct answer to “Which of the following are repair docks”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

Four points is the correct answer to “In multiple point mooring system, vessel is secured to minimum of”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

sea wall with concave face is the correct answer to “Which of the following type of sea walls results in greatest protection of shore structures”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

Both A and R are true and R is the correct explanation of A. is the correct answer to “Assertion A : Large size stones are required in stone revetment in shore protection. Reason R : Resistance of stone to wave force is proportional to its volume and wave force is proportional to the exposed area of the stone. Select your answer based on the coding system given below.”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

Both A and R are true and R is correct explanation of A. is the correct answer to “Assertion A : Intervention of undulations in the sea bed reduces the depth of wave at the section. Reason R : No wave can have a height greater than the depth of water through which it passes. Select your answer based on the coding system given below:”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

Both A and R are true and R is the correct explanation of A. is the correct answer to “Assertion A : Marine structures are made specially bulky and strong. Reason R : Sea insects result in undermining of the hardest and the soundest building material. Select your answer based on the coding system given below:”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

Both A and R are true and R is the correct explanation of A. is the correct answer to “Assertion A : Basin walls have to be of much grater height than dock walls. Reason R : Tidal basins are subject to fluctuations of levels due to tidal variations. Select your answer based on the coding system given below:”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

Both A and R are true and R is the correct explanation of A. is the correct answer to “Assertion A : Depth and width required at the entrance to a harbour are more than those required in the channel. Reason R : The entrance to a harbour is usually more exposed to waves as compared to the harbour itself. Select your answer based on the coding system given below:”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

7 m is the correct answer to “If the maximum spring rise is 2 m and height of the waves expected is 4 m , then the breakwater height above the datum will be”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

0.34 VF is the correct answer to “As per Stevenson’s empirical formula, the approximate value of the height of the wave in metres is given by (where F is the fetch in km.)”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

9.144 m is the correct answer to “At a given port, the fetch is 400 nautical miles, the maximum height of storm wave will be”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

0.6 Hs and 1.87 Hs is the correct answer to “If ‘Hs’ is the significant wave height, then the average wave height and highest wave height respectively are given by”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.

Maximum range is the correct answer to “The difference in height between highest high water and lowest low water is called”. This question is standard in competitive examination syllabi for Docks And Harbor Engineering.