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اختبار قصير lesson 3
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آختبار قصير لمادة steam turbine operation
هذا الاختبار من ٥ درجات تضاف على ١٠٠ درجة
آجب على جميع الاسئلة بدقة
سم بأسم الله وتوكل على الله
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Q1
Score: 2
high thrust excessive movement trip device
Bearing metal temperature high
Differential expansion high
Turbine rotor position excessive high
Turbine pass-out steam pressure high-high
Q2
Score: 1
Not less than 55C superheat
Not more than 435C total temperature
Q3
Score: 1
WARM START-UP
HOT START UP
COLD STAR-TUP
Q4
Score: 1
Eccentricity should show a steady value of above 0.75 mm
when load 5% or 10% Hold at this load for at least 30 minutes in hot start up.
Rate” of speed, set 100 or 150 rpm per minute
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