Skip to main content

Questions Set 1 (Harbor Docks)

Get a questionnaire ride in a minutes.It will provide you a better way to study,learn and succeed




All question on Harbor Docks are asked in previous exams and here they are provided to get a access to it to apply it in your exam


1. When a ship floats at its designed water line, the vertical distance from water line to the bottom of the ship is known as 
A. Beam
B. Depth
C. Freeboard
D. Draft

2. The maximum harbour depth below lowest low water is generally equal to
i. Loaded draft + 1.2m when bottom is rock
ii. Loaded draft + 1.8m when bottom is soft
iii. Loaded draft + 1.2m when bottom is soft
iv. Loaded draft + 1.8m when bottom is rock
Of these statements :
A. i and ii are correct
B. i and iii are correct
C. ii and iv are correct
D. iii and iv are correct

3. The minimum diameter of the turning besin, where ships turn by going ahead and without tug assistance should be 
A. L
B. 1.5L
C. 2.0L
D. 4.0L 
Where L is the length of the largest ship to use the port.

4. 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 :
A. i and ii are correct
B. ii and iii are correct
C. i and iii are correct
D. Only iii is correct

5. In the basins subjected to strong winds and tide, the length of berthing area should not be less than :
A. the length of designed vessel
B. the length of designed vessel + 10% clearance between adjacent vessel
C. the length of designed vessel + 20% clearance between adjacent vessel
D. twice the length of designed vessel

6. As per Stevenson's empirical formula, the approximate value of the height of the wave in metres is given by :
A. 0.34√F 
B. 0.5√F 
C. 1.5√F 
D. 3.4√F 
where F is the fetch in km.

7. As per Berlin's formula, the length of the wave in metres is given by :
A. 1.34 t²
B. 1.56 t²
C. 1.74 t²
D. 1.94 t²
where 't' is the period in seconds for two successive waves to pass the same section.

8. 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 smallesr and for hurricane is highest.
Of these statements :
A. i and ii are correct
B. ii and iii are correct
C. i and iii are correct
D. i, ii and iii are correct

9. 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


10. In a two lane channel, bottom width of channel is given by 
A. Manoeuvring lane + 2 x Bank clearance lane
B. 2 x Manoeuvring lane + 2 x Bank clearance lane
C.  2 x Manoeuvring lane + 2 x Bank clearance lane + ship clearance lane
D. Manoeuvring lane + 2 x Bank clearance lane + ship clearance lane.

11. Minimum width of ship clearance shall be 
A. B or 30m
B. 1.5 B or 50m
C. 1.5 B
D. 50m
wher B is the beam of design vessel

12. Littoral draft as bed load is proportional to 
A. V^5/(G-1)²
B. V⁴/(G-1)²
C. V³/(G-1)
D. V²/(G-1)
where V = velocity
G = specific gravity of transported material.

13. Select incorrect statement
A. The process of work in low level method of mound construction is very slow.
B. Barge method of mound construction is economical.
C. In low level method of mound construction, the area of working is limited.
D. In staging method of mound construction, the work is not interrupted even during stormy weather.

14. The most popular method of construction of wall breakwaters is 
A. Barge method
B. Staging method
C. Low level method
D. None of the above

15. As compared to the wall type breakwater, mound type breakwater 
A. Requires skilled labour
B. Requires low maintenance cost
C. Requires less material
D. Results in less damage due to gradual failure.


Labels:

Comments

Post a Comment

Popular posts from this blog

METHOD OF TUNNELING IN SOFT ROCK

A Key article to learn " Method of Tunneling in Soft Rock " providing easy access to learn     Classification of  Method of tunneling in soft rock  1)Hard rock or fully self supporting 2)Soft soils  requiring temporary support during and after construction. Forepoling Method      Sequence of operation The shaft is sunk from surface to the grade level and properly protected with timber sheeting A wooden bent properly braced is setup a few inches from sheeting Small holes at close interval are drilled through the sheeting to facilitate section being cutout.The pattern of holes are 3 inches apart above the cap and other lines of holes below the cap A peice of sheeting is cutout along the top lines of the holes Forepoles or spiles consists of planks with wedge end are entered one at a time and driven through cut,into the ground for half their lengths with an upward inclination of 2 inch per foot. After all the roof and part of side spiles are driven to half their length a timber
Post a Comment
Read more

Previously Asked Question

Here you will get to know on which way we are going and how we will reach the destination 1. Pick up the explosive used for tunneling in soft rocks from the following :  A. Special gelatine B. Blasting gelatine C. Ammonia dynamite D. Semi-gelatine 2. Which one of the following tunnelling method is used for lying underground sewers ? A. Needle beam method B. German method  C. Army method D. English method 3. To attain the required shape of tunnel we use : A. Cutholes B. Chisels C. Erasers D. Trimmers 4. For initial surveys of tunnel, the following activities are involved :  a. Marking portal points with concrete pillars on the ground.  b. Marking tunnel obligatory points on the topograpical maps. c. Driving lines between the fixed obligatory points. d. Preliminary setting of the tunnel on the topograpical survey of Indian maps. The correct sequence of the activities are :  A. b,a,d,c B. a,b,c,d C. d,b,c,a D. c,b,d,a 5. If 'D' is a diameter of the tunnel in meters, then the thick
Post a Comment
Read more

How to Reduce Carbon dioxide from cement?

Get an overview to learn the Basics of properties of cement and know how the carbon dioxide is being removed                          ABSTRACT Concrete is the most widely used building material in the world because of its beauty, strength, and  durability, among other benefits. Concrete is used in nearly every type of construction, including  homes, buildings, roads, bridges, airports, and subways. And in an era of increased attention to the  environmental impact of construction, concrete performs well when compared to other building  materials. As with any building product, the production of concrete and its ingredients does require energy  that in turn results in the generation of carbon dioxide, or CO2. The amount of CO2 produced during  manufacturing and the net impact of using concrete as a building material is relatively small. The  following features of concrete construction help minimize its carbon footprint. Atmospheric concentrations of CO2 are expressed in units of parts per
Post a Comment
Read more