Engineering, 06.09.2019 21:10 josh7049
Air in a piston-cylinder device is compressed from 25 c and 100 kpa to 500 kpa during a polytropic process for which pv.3- constant. the air temperature after compression (in c) is : (a) 182 (b) 156 (c) 1207 (d) 115
Answers: 2
Engineering, 04.07.2019 18:10
The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false
Answers: 1
Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Engineering, 04.07.2019 18:10
The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length
Answers: 2
Engineering, 04.07.2019 18:10
Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.
Answers: 1
Air in a piston-cylinder device is compressed from 25 c and 100 kpa to 500 kpa during a polytropic p...
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