Engineering, 04.05.2021 01:10 aidenmanpig

Question 4 A steel rod of 20 mm diameter passes centrally through a copper tube of 50 mm external diameter
and 40 mm internal diameter. The tube is closed at each end by rigid plates of negligible thickness.
The nuts are tightened lightly home on the projecting parts of the rod. If the temperature of the
assembly is raised by 50°C, calculate the stresses developed in copper and steel. Take E for steel
and copper as 200 GN/m² and 100 GN/m² and α for steel and copper as 12x 10-6
per °C and 18 x
10-6
per °C

Answers: 3

Show answers

Another question on Engineering

Engineering, 03.07.2019 15:10

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Answers: 3

Answer

Engineering, 04.07.2019 18:10

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

Answers: 3

Answer

Engineering, 04.07.2019 18:10

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

Answers: 2

Answer

Engineering, 04.07.2019 19:10

What is a monomer? how do they form a ploymer from the view point of chemical bonding?

Answers: 1

Answer

You know the right answer?

Question 4 A steel rod of 20 mm diameter passes centrally through a copper tube of 50 mm external...

Questions