Category: EK GENERAL

—

by

With reference to fixed installations for machinery space fires (a) Sketch a CO2 bottled system (5) (b) Explain how the system sketched in part (a) is protected from overpressure (2) (c) Describe the periodic maintenance required (3) Fire Mar 2021 (Q8)

EK General Mar 2021 (Q7)

—

by

Sketch a hydraulic circuit for a FOUR ram steering gear that allows FIVE different ram combinations to be used, identifying EACH ram and valve combinations (10) Steering & stabilizers Mar 2021 (Q7)

EK General Mar 2021 (Q6)

—

by

With reference to heat exchangers, describe how EACH of the following design aspects promote heat transfer (a) material selection (5) (b) flow patterns (3) (c) extended surface areas (2) Heat exchanger Mar 2021 (Q6)

EK General Mar 2021 (Q5)

—

by

With reference to centrifugal separators used for oily bilge duty (a) Explain why centrifugal oily water separators are superior to those rely on gravity (3) (b) Describe, with the aid of a sketch, how flow over the centrifugal separator plates can break down emulsion by encountering flocculation of particles and coalescence of droplets (5) (c) State…

EK General Mar 2021 (Q4)

—

by

(a) Define propeller slip, explaining how it is calculated (2) (b) State, with reasons, FOUR conditions which will affect the propeller slip (8) Propeller, shafting & thrusters Mar 2021 (Q4)

EK General Mar 2021 (Q3)

—

by

(a) Sketch an annotated block diagram of a closed loop control circuit (5) (b) Describe how the control loop sketched in Q(a) operates (5) Control system Mar 2021 (Q3)

EK General Mar 2021 (Q2)

—

by

(a) Describe, with the aid of a Strain versus Time diagram how a creep test is carried out to determine the strain rate of the material under test (6) (b) Explain EACH of the stages sketched in the diagram in part (a) (4) Materials Mar 2021 (Q2)

EK General mar 2021 (Q1)

—

by

Describe EACH of the following properties of materials: (a) Strength (2) (b) Hardness (2) (c) Ductility (2) (d) Toughness (2) (e) Brittleness (2) Materials Mar 2021 (Q1)

EK General Dec 2020 (Q8)

—

by

(a) The International Management Code for the Safe Operation of Ships and for Pollution Prevention, is commonly referred to as the ISM code. Explain the objectives of ISM and how they are achieved (5) (b) List FIVE emergency scenarios for which contingency plans may be developed under ISM with respect to the engine room. (5)…

EK General Dec 2020 (Q7)

—

by