Engineering, 27.12.2019 00:31 katiepotter
Which one of the following statements is true? explain whether each is true or false.
a] pearlite and bainite are examples of phases that can be formed by austenite if the cooling rate
is controlled appropriately.
(b)
when austenite containing 1.2 percent carbon by weight (and no significant amounts of anyother alloying elements) is cooled slowly, hypereutectic fe3c will form above 727�c.
(c)1040 plain carbon steel cannot be spheroidized.
(d)when a metal exhibits a single, well defined freezing temperature, all the crystals formed on cooling will have the same composition.
(e)the hardenability of 1060 plain carbon steeldoes not depend on the hardness of the sample at room temperature prior to heat treatment.
Answers: 3
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
Engineering, 03.07.2019 23:20
Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct
Answers: 3
Engineering, 04.07.2019 18:10
The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false
Answers: 1
Engineering, 04.07.2019 18:10
Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer
Answers: 2
Which one of the following statements is true? explain whether each is true or false.
a...
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