Kerala PSC Previous Years Question Paper & Answer

Title : NAVAL ARCHITECT PORT
Question Code : A

Page:9


Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'NAVAL ARCHITECT PORT' And exam conducted in the year 2018. And Question paper code was '050/2018/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.

page: 9 out of 13
Excerpt of Question Code: 050/2018/OL

A:-0°, Transfer

B:-270°, Tactical diameter

C:-(1) and (2}

D:-None of the above

Correct Answer:- Option-A
Question70:-Inside a LNG cargo ship tank due to heat ingress the cargo density variation is present. This induces a
convective flow in Z direction. In which of the following motions Coriolis acceleration will act on the fluid: roll, pitch and yaw.

A:-Roll and Pitch

B:-Roll and Yaw

C:-Yaw and Pitch

೧:-(1), (2), (3)

Correct Answer:- Option-A
Question71:-A fighter jet is speeding on the flight deck of an aircraft camier (in X axis direction of the ship) at a constant
speed of 150 kmyhour. The ship is steadily yawing to port side at 5°/sec. the magnitude of Coriolis acceleration acting on the
fighter jet. Please ignore all other dynamical effects.

7272 "00/572
8:-9.8 "52"
78 "ಗೂ
D:-None of the above
Correct Answer:- Option-A
Question72:-Time derivative of unit vector in rotating coordinate system will be
A:-"doti = omega xx i
B:-'dotk = omega xx k™
C:-*dotj = omega जद |
D:-All of the above
Correct Answer:- Option-D
Question73:-The Euler angles used in ship dynamics are orthogonal.
A:-Commutative and orthogonal
B:-No
C:-Yes
D:-None of the above
Correct Answer:- Option-B
Question74:-During a sway harmonic test, 3 complete oscillation cycles are required. The camiage is towed at a steady
forward speed of 4.0 mys. The time period of one complete sway oscillation 15 10 sec. The minimum tank length required ഡി
be ಗ
A:-40
B:-120
C:-80
D:-None of the above
Correct Answer:- Option-B
Question75:-In the 6 DoF motion of the ship, which degrees of freedom have the stiffness or restoring term present?
A:-Roll
B:-Pitch
C:-Heave
D:~(1), (2) and (3)
Correct Answer:- Option-D
Question76:-The following procedure will be followed during crash stop maneuver execution in a ship fitted with (i} fixed
pitch propeller (ii} controllable pitch propeller.
A:-(i} Stop and reverse main engine
(i) Only reverse the propeller pitch
8:-1) 500 800 reverse main engine
(ii) Stop and reverse main engine, thereafter reverse the propeller pitch
C:-(i} Give full ahead rpm

D:-None of the above
Correct Answer:- Option-A
Question77:-The following parameters are measured during crash stop maneuver execution in a ship
A:-Stopping Ability
B:-Head Reach
C:-Track Reach

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