27. If one electrical generator is out of commission, the _____ should investigate whether
power is available to maintain essential and emergency services and should conduct tests.
(A) Class
(B) Safety Management Officer
(C) Ordinary Seaman
(D) Port State Control Officer
18. The weight, displacement, power, speed and several characteristics of the simulating
vessel by the model are accordingly approximated based on the series of data collected from the
tests of __________ .
(A) shop trial.
(B) mooring trial.
(C) model towing tank.
(D) sea trial.
31. Which type of response will be excited for a shafting system if the frequency of a vibratory
load is equal to a natural frequency of the connected structure or equipment of this shafting
system?
(A) Resonant response
(B) Static response
(C) External response
(D) Transmitting response
17. Although the liquid-level indicating system is installed, a ________ is generally installed for the
traditional tank level measurement.
(A) liquid sensing tube
(B) air purge tube
(C) sounding tube
(D) capillarity tube
30. While it is often technically possible to install a single generator of sufficient capacity to satisfy
all requirements, multiple generators are normally installed. One reason for multiple units is that a
single generator failure would otherwise incapacitate the entire electric plant； and other is that
part-load operation of a single generator would be at an excessively low power level. In what
follows, which is not the reason to install the multiple generators?
(A) The sufficient power capacity could not be satisfied by a single generator.
(B) A single generator can not provide reliable electrical power supply when a single generator
failure occurs.
(C) The part-load operation of a single generator at an excessively low power level is unlikely to
occur.
(D) The multiple generators could also provide electrical power supply even if a single generator
failure occurs.
7. An adjustment screw permits the valve to be set up for condensate release at a specific
temperature. Clearly in an application where the pressure varies there could be a board band of
operation in which the trap would be ether waterlogged or passing steam. What type of operated
traps is above description?
(A) Thermodynamic trap
(B) Mechanical trap
(C) Thermostatic trap
(D) Vacuum trap
5. Certain watch keeping duties are necessary for the continuous operation of equipment or
plan such as the ________.
(A) purifying oil
(B) transferring oil
(C) supplying fuel from rank to engine
(D) heating heavy oil
29. The products of combustion of marine fuels include sulfur dioxide, which, when combined with
water vapor, forms acids such as the sulfurous acid and sulfuric acid. These acids cause cold-end
corrosion if allowed to condense on boiler components of flue-gas ducting. Therefore, in order to
prevent the cold-end corrosion, which action is not to be taken?
(A) To ensure the temperature of exhaust gas is always above the condensation temperature level.
(B) To install more heat exchangers in the flue-gas ducting so that the temperature of exhaust gas
is further reduced.
(C) To prevent any chemical process that formulates the acid within the boiler components of fluegas ducting.
(D) To ensure there is no water-vapor condensate formed within the flue gas by controlling the flow
temperatures in the flue-gas ducting.
40. Which is one of major components of a steam turbine power plant generally working at a
vacuum pressure in order to gain a greater efficiency?
(A) Condenser
(B) Steam drum baffles
(C) Steam blanket
(D) Vacuumed distillation plant
寫作批改
VIP與詳解卡管理
