6. 若要運送含有雜質或污濁之液體，使用下列何種泵最為恰當？ (A)離心式泵 (B)齒輪式泵 (C)抽射式泵 (D)螺旋式泵

12. The principal reason for turbocharging is to increase the power output of an engine of given size and speed, by enabling the cylinders to be charged with air at an elevated pressure and, therefore, at a higher density than air at atmospheric pressure. What is the main purpose to use a turbocharger？ (A)To elevate the density of air in order to decrease the pressure in cylinder. (B)To elevate the pressure of air in order to decrease the density in cylinder. (C)To improve the power output of an engine of given size and speed by increasing the compressed air intake temperature. (D)To improve the power output of an engine of given size and speed by increasing the density of charged air.

6. 若要運送含有雜質或污濁之液體，使用下列何種泵最為恰當？
(A)離心式泵
(B)齒輪式泵
(C)抽射式泵
(D)螺旋式泵

相關試題

相關試卷

6. 若要運送含有雜質或污濁之液體，使用下列何種泵最為恰當？(A)離心式泵(B)齒輪式泵(C)抽射式泵(D)螺旋式泵

相關試題

相關試卷

6. 若要運送含有雜質或污濁之液體，使用下列何種泵最為恰當？
(A)離心式泵
(B)齒輪式泵
(C)抽射式泵
(D)螺旋式泵