單項(xiàng)選擇題

Increasing the speed of a rotary pump above its rated speed will result in which of the following conditions to occur?（）

A.Loss of suction
B.Increased clearances
C.Decreased clearance
D.Decreased slippage

你可能感興趣的試題

The dew point of air is reached when the wet bulb temperature is （）.

A.Twice the dry bulb temperature
B.10℃ above the dry bulb temperature
C.5℃ above the dry bulb temperature
D.Equal to the dry bulb temperature

單項(xiàng)選擇題

Which of the listed problems could produce a high absolute pressure within a flash type evaporator?（）

A.Production of high salinity distillate
B.Seawater feed temperature below 165℃
C.A leak in the first stage demister
D.A cracked distillate pump vent line

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Increasing the speed of a rotary pump above its rated speed will result in which of the following conditions to occur?（）

你可能感興趣的試題

The dew point of air is reached when the wet bulb temperature is （）.

Which of the listed problems could produce a high absolute pressure within a flash type evaporator?（）