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提问人：网友basestone1
发布时间：2022-01-07
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1. in the fluid are higher, making mass transfer in the fluid faster.
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第3题
Which of the following statements is true？A．The brain of an aged person shrinks 5% every 1
Which of the following statements is true？
A．The brain of an aged person shrinks 5% every 10 years.
B．The brain of an adult person shrinks 2.5% every 10 years.
C．The cerebrospinal fluid of a person with 4 years of education may increase only slightly.
D．The cerebrospinal fluid of a person with 8 years of education may increase by 17.7 millimeters.
第4题
节流过程是不可逆过程，在过程中流体处于非平衡状态，没...
节流过程是不可逆过程，在过程中流体处于非平衡状态，没有确定的状态参数。但可研究节流前后流体处于平衡状态的情况。例如：离节流足够远的两个截面1、2处，那里的气体已为平衡状态。Throttling process is an irreversible process, in which the fluid is in a non-equilibrium state and there are no determined state parameters. However, the equilibrium state of fluid before and after throttling can be studied. For example, two sections 1 and 2 far enough away from the throttle, where the gas is in equilibrium. Pressure: p1＞p2; Specific volume: v1＜v2; velocity:＞ A、压力 ：p1＜p2＜br＞ B、压力 ：p1＞p2
C、比体积：v1＜v2＜br＞ D、流速：w1＜w2＜br＞
第6题
Overheating of the hydraulic fluid in an electro-hydraulic anchor windlass can result
from a/an().
点击查看答案
A.overload on the pump motor
B.low fluid level in the reservoir
C.low fluid viscosity around the shaft seal
D.high oil level in the sump
第7题
In a shell-and-tube type hydraulic fluid cooler, the amount of heat transferred from the h
ydraulic fluid to the cooling water depends upon .
点击查看答案
A.the temperature of the hydraulic fluid
B.the flow rate of the hydraulic fluid
C.the temperature of the cooling water
D.all of the above
第8题
If you are given the job of adding hydraulic fluid to a mooring winch, and are not certain
as to the type of fluid to use, you should _____.
点击查看答案
A.add fluid that is the same color as the fluid in the reservoir
B.add turbine oil because it is always a good substitute
C.add any oil that has the same viscosity as the hydraulic fluid
D.check the winch manufacturers instruction book
第9题
An economic _______ followed, especially in housing and construction.
A.fluid
B.guideline
C.boom
D.stability
第10题
The most common contaminate of governor hydraulic fluid is _____.A.moistureB.dirtC.acidD.a
The most common contaminate of governor hydraulic fluid is _____.
A.moisture
B.dirt
C.acid
D.air
