4. ____________is the gas exchange process in which the charge air passes straight up
through the length of the cylinder, forcing the exhaust gas through exhaust valve at
the top of the cylinder.
(A) Loop flow scavenging
(B) Cross flow scavenging
(C) Uniflow scavenging
(D) Standard flow scavenging
6. What following set of pumps is positive displacement type?
(A) Rotary pump and Reciprocating pump
(B) Centrifugal pump and Injection pump
(C) Centrifugal pump and Rotary pump
(D) Volute pump and Injection pump
9. It is obviously impossible to regulate the decreasing pressure by a single cock or
screw-down valve, when the steam pressure would decrease because the demand for steam
on the varied side. What equipment is above description?
(A) Globe valve
(B) Reducing valve
(C) Quick closing valve
(D) Gate valve
10. Two types of turbine stages are usual applied for steam turbine engines. What are
the two types?
(A) Force and Impulse Stages
(B) Impulse and Action Stages
(C) Impulse and Reaction Stage
(D) Action and Force Stage
26. _________ is the process of removing exhaust gases from the cylinder after
combustion and replenishing the cylinder with fresh air.
(A) Soot blowing
(B) Scavenging
(C) Surging
(D) Stripping
33. The engine logbook should normally be kept at a convenient place in _________.
(A) Wheel House.
(B) Ship's Library.
(C) Engine Control Room.
(D) Engine Store Room.
35. Stainless steel bellows expansion joints are commonly used since they will absorb
movement or vibration in several planes, eliminate maintenance and reduce friction and
heat loss. Which caution is not necessary to do when expansion joints are installed?
(A) The joint is installed at its length more than the limit.
(B) Maximum and minimum working temperatures must be considered when choosing the joint.
(C) The joint must be so installed that it is neither over-compressed nor over-extended.
(D) The installation length must be appropriate to the temperature at installation.
36. Which is not feature of rotary pumps?
(A) Wear decreases the clearances with consequent loss of efficiency, especially when
handing low viscosity fluids.
(B) They are self-priming.
(C) They are capable of producing high vacuum.
(D) They give a steady flow, but are less efficient than reciprocator because
differential pressure between suction and discharge.