SSC JE Mechanical Engineering 2014 Set 1 Paper

Question : 139 of 200

Marks: +1, -0

A liquid flows from low level

Z_1

, pressure

P_1

to a higher level

Z_2

, pressure

P_2

. It can be concluded

first law of thermodynamics has been violated
second law of thermodynamics has been violated
$Z_2< Z_1$
$P_2< P_1$

Validate

Solution:

Liquid from low level to higher level can flow only because of pressure difference. So, the pressure at starting (at low level side) will be more.
Thus

P_1 > P_2 \or P_2 < P_1

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