A Drain Cleaner-Restricted Registrant may use his or her Plumber's Apprentice registration to assist in the
installation of plumbing only under the direct supervision of a licensed: (refer to Board Rule, Chapter
365.1)
A. Master Plumber.
Journeyman Plumber.
Tradesman Plumber-Limited.
any of the above.
دن

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.