Both seamless mild steel and copper may be used for middle pressure steam
hpair means high pressure air
The feed piping of the boilers can be made of seamless mild steel
All oil pipings are made of mild steel
第1题:
What material is allowed in construction of the hull of a vessel with an integral diesel fuel tank ________.
A.Steel or aluminum
B.Sandwich style fibreglass with a natural rubber core
C.Copper-nickel or copper silicon alloys
D.Any or all of the above
第2题:
Most propellers on merchant vessels are constructed of______.
A.manganese bronze
B.cast iron
C.mild steel
D.improved plow steel
第3题:
Steel strapping is used for ______.
A.bracing
B.blocking
C.tomming down
D.lashing
第4题:
to carry cargoes of low density
when stowage space is limited
to carry cargoes such as steel products or drums
to double the stowage capacity of the vessel
第5题:
The varnish is used to paint the ()(木制品) and deck rail.
第6题:
A half-height container is used ______.
A.to carry cargos of low density
B.when stowage space is limited
C.to carry cargos such as steel products or drums
D.to double the stowage capacity of the vessel
第7题:
第8题:
______ is not usually used in liquid cargo systems.
A.Hydraulic drive systems
B.Electric drive systems
C.Steam drive systems
D.Man-powered drive systems
第9题:
The "1000" in 1000BaseT cabling represents which of the following?()
第10题:
the former
the first
the latter
the last