know about the questions that are asked in the meo class 4b oral exam of motor
function. This function is also called as 4B function. The full name of this is
maintenance and Repair at Operational Level.
Class 4B Motor Oral Questions
why high voltage is used on ships, with proper answers.
of a piston. Draw it and what are the advantages.
the use of tie rod . Draw and show components of forces and how tie rod is
bearings used on ships.
between crankcase oil of 2 stroke and 4 stroke engines. Name of the oil we used
to have onboard.
high lift safety valve-improvements, compression ring, nut, materials etc.
type of ship you sailed in.
carrier so with electric propulsion system so he asked me about the propulsion
motors and entire system with converters, gas combustion units.
of DFE. How much pilot fuel is injected per cycle and in total? And plus some
Advantages of electric propulsion with DFE.
and alarms on MAC.
of pumps in steering gear system. Working of radial piston pump.
down pressure in safety valve and controlling.
have noticed one crank case door of m/e hot. What will be your action as a
watch keeping engineer-Just tell the sequence wise.
Scavenge temp high, what all checks you do?
type pump we use in boiler feed pump why? How balancing is achieved?
compressor taking more time to fill air bottle? What could be the reason?
type of steering has you in your ship? Can we have 2 ram system? Regulation for
having 2 ram system? How you steer ship if one ram cylinder leaking?
how it works, how connected to the engine/governor? Advance and late injection,
Value of ignition delay.
load. Effect if exhaust temp is low.
when one Ram is defective?
Compressor – Why drains are provided in it?
all from this post on oral questions.