The stress-strain data from a tensile test on a cast-iron specimen are Engineering stress, kpsi 5 10 16 19 26 32 40 46 49 54 Engineering strain, ? • 10?3 in/in 0.20 0.44 0.80 1.0 1.5 2.0 2.8 3.4 4.0 5.0 Plot the stress-strain locus and find the 0.1 percent offset yield strength, and the tangent modulus of elasticity at zero stress and at 20 kpsi.
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A transaxle shifts easily into all the gears with the engine shut off, but with the engine running the shifts into all forward gears are hard and there is a clash when shifting into reverse. Technician A says that this problem could be caused by a worn shift fork. Technician B says that there could be worn countershaft bearings. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Which of the following is an example of an impulse turbine?
A. Pelton wheel turbine B. Kaplan turbine C. Curtis turbine D. Francis turbine
The Hollomon equation is:
What is the function of a purge unit?
A) A purge unit is used to purge the refrigeration oil out of the refrigerant. B) A purge unit is used to purge the superheat from the condenser. C) A purge unit will purge the air from the top of the condenser. D) A purge unit is used to purge the air out of the chilled water loop.