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Engineering, 04.07.2019 18:10
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Engineering, 04.07.2019 19:20
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List and describe in sequence the operation process steps for boxf machine?
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An inventor claims to have developed a reversed heat engine (ie. a heat pump) which is able to deliver 10 kj heat into the room at 20°c from outside ambient temperature of -10°c by consuming only 2 kj electricity in winter. this claim is a)-impossible b)-possible only if the heat pump is ideal c)-practically possible d)-unable to be assessed as it depends on the working fluid used in the heat pump.
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Never attempt to repair oxygen or acetylene cylinder:...
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