An advantage of aluminum pistons, when compared to cast iron pistons is （）.

[单选题]Aluminum pistons have （） coefficient of thermal expansion compared with those of cast iron.A . higherB . lowerC . the sameD . none of the above

[单选题]__________[A] tendency [B] advantage [C] inclination [D] priority

[单选题][A] priority [B] advantage [C] control [D] place

[试题](c) State one advantage to a business of keeping its working capital cycle as short as possible.(2 Marks)

[单选题]Aluminum lifeboats are subject to damage by electrolytic corrosion (the aluminum being eaten away). In working around boats of aluminum you must be very careful（）.A . to keep the boats covered at all timesB . not to leave steel or iron tools lying in

[单选题]An aluminum piston has lower inertia and higher coefficient of （） compared to that of cast iron.A . viscosityB . twisting momentsC . inertiaD . thermal expansio

[单选题]（） provide the water to the pistons.A . Pneumatic pipesB . Hydraulic pipesC . Telescopic pipesD . Operating gas pipe

[单选题]Which of the following statements best describes an advantage of a forward

[单选题]Pistons may be made in （） in order to keep the weight down for balancing purposes at high speed.A . cast ironB . forged steelC . stainless steelD . aluminum alloy

[单选题]Due to （） action of pistons some relative motion between parts in contact in the coolant supply and return system must occur.A . reciprocatingB . rotatingC . runningD . removing