SSC JE Mechanical Engineering 25 Sep 2019 Shift 1 Paper

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Question : 148 of 200

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For an ideal diffuser in a steady flow, in

m_\CV

is the mass of air in its control volume (cv), then:

The velocity of the air at exit is higher than at the inlet of the diffuser
$Δm_\cv = 0$ , where $Δm_\cv$ = change in mass
The specific enthalpy of the air reduces from inlet to exit
$ΔE_\cv$ < 0, where, $ΔE_\cv$ = change in total energy

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