Engineering, 18.07.2019 22:30 alove1777
The compression ratio of an air-standard otto cycle is 9.5. prior to the isentropic compression process, the air is at 100 kpa, 35°c, and 600 cm3. the temperature at the end of the isentropic expansion process is 800 k. using specific heat values at room temperature, determine: (a) the highest temperature and pressure in the cycle; (b) the amount of heat transferred in, in kj; (c) the thermal efficiency; and (d) the mean effective pressure.
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
True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure
Answers: 2
Engineering, 04.07.2019 18:20
Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?
Answers: 3
Engineering, 04.07.2019 18:20
Agas mixture consists of 8 kmol of h2 and 2 kmol of n2. determine the mass of each gas and the apparent gas constant of the mixture.
Answers: 3
The compression ratio of an air-standard otto cycle is 9.5. prior to the isentropic compression proc...
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