單項(xiàng)選擇題

How can the chance of contaminating hydraulic fluid be decreased when working on hydraulic system?（）

A.clean the fittings before they are disconnected
B.Place drip pans under leaky fittings
C.Seal any cracks in lines with Permatex
D.Coat all threads with graphite oil

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單項(xiàng)選擇題

In the design of hydraulic piping and equipment consideration is given to minimize turbulence in the hydraulic fluid, as this will cause（）

A.molecular fluid vibration
B.energy losses
C.wide pressure variations
D.mechanical damage to control valves

單項(xiàng)選擇題

One function provided by a hydraulic accumulator is to（）

A.provide an area where air can separate from the oil
B.provide an area to separate solid contaminants from the oil
C.act as an oil and water separator
D.absorb shocks occurring in the system

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How can the chance of contaminating hydraulic fluid be decreased when working on hydraulic system?（）

你可能感興趣的試題

In the design of hydraulic piping and equipment consideration is given to minimize turbulence in the hydraulic fluid, as this will cause（）

One function provided by a hydraulic accumulator is to（）

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