Engineering, 03.08.2019 00:20 lanettejohnson355
The center aluminum rod cd (ea = 70 gpa, αa = 23 × 10−6/°c) of the assembly is heated from 30°c to 180°c using electrical resistance heating and the temperature in the two identical steel rods ab and ef(es = 200 gpa, αs = 12 × 10−6/°c) rises from 30°c to 50°c. each steel rod has a cross sectional area of 125 mm2 and the cross sectional area of the aluminum rod is 375 mm2. if there is a 0.7-mm gap between rod cdand the rigid top block bf at 30°c, determine the normal stresses in the rods caused by the increase in temperature.
Answers: 3
Engineering, 04.07.2019 18:10
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.
Answers: 1
Engineering, 04.07.2019 18:10
Condition monitoring is a major component of. (clo4) a)- predictive maintenance. b)-preventive maintenance c)-proactive maintenance d)-reactive maintenance.
Answers: 1
Engineering, 04.07.2019 19:10
Asteel wire of 2 mm diameter is fixed between two points located 2 m apart. the tensile force in the wire is 250n, if its density of steel is given by 7830 kg/m3 the fundamental frequency of vibration hz? ?
Answers: 3
Engineering, 04.07.2019 19:20
Acircular pipe of 30mm outside diameter is placed in an airstream at 30 c and latm pressure. the air moves in cross flow over the pipe at 20 m/s, while the outer surface of the pipe is maintained at 110 c. what is the drag force exerted on the pipe per unit length? what is the rate of heat transfer from the pipe per unit length?
Answers: 1
The center aluminum rod cd (ea = 70 gpa, αa = 23 × 10−6/°c) of the assembly is heated from 30°c to 1...
Mathematics, 20.09.2020 14:01
Computers and Technology, 20.09.2020 14:01
Mathematics, 20.09.2020 14:01
Chemistry, 20.09.2020 14:01
English, 20.09.2020 14:01
Mathematics, 20.09.2020 14:01
History, 20.09.2020 14:01
History, 20.09.2020 14:01
Computers and Technology, 20.09.2020 14:01
Biology, 20.09.2020 14:01