Engineering, 12.07.2019 21:20 xbeatdroperzx
Afour cylinder, with a capacity of 2.4 liter, operates on four stroke, runs at 3200 r. p.m. the bore and the stroke are related as: stroke=1.06 bore. determine: (a)-clearance volume of one cylinder (ec). (b) -bore and stroke (em). (e)-average piston speed (m/sec).
Answers: 1
Engineering, 03.07.2019 14:10
Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.
Answers: 3
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, 06.07.2019 04:10
Along steel shaft of 10 cm diameter is austenised at 870°c and then quenched in a liquid at 30oc. the average surface heat transfer coefficient is 2000 w/m2. °c. the relevant thermophysical properties of the shaft are: p=7800 kg/m", k=20 w/mk, cp=0.46 kj/kg.k calculate: a)-the time required for the center temperature to drop to 200°c. b)-the temperature at half-radius at that moment. c)-the amount of heat that had been transferred to the liquid by that time per meter length of the shaft
Answers: 1
Engineering, 06.07.2019 06:10
Abritle material made of astm grade 30 cast iron has ultimate strength in tension of 31 kpsi and altimate strength in compression of 109 kpsi and undergoes the following plane of stress te 20 lepst and ry10 kpsi (cw). a) using the 3d mohr's circle, find all three principal normal stresses. b) using the brittle-coulomb-mohr theory and modified-mohr theory. ind the factors of safety for the given plane of stress state.
Answers: 1
Afour cylinder, with a capacity of 2.4 liter, operates on four stroke, runs at 3200 r. p.m. the bore...
English, 30.04.2021 20:20
Mathematics, 30.04.2021 20:20
Chemistry, 30.04.2021 20:20
English, 30.04.2021 20:20
Mathematics, 30.04.2021 20:20
Mathematics, 30.04.2021 20:20
Mathematics, 30.04.2021 20:20
Mathematics, 30.04.2021 20:20