Engineering, 06.05.2020 05:04 mrsjenrucker
In Example 29.4 (solved in lecture class), the welder works alone, performing not only the welding but also loading and unloading the parts. Suppose a fitter is used in the work cycle to load the starting parts and unload the weldment, and a two-position fixture is installed so that the welder and fitter can work simultaneously. The fixture is designed to index (rotate) between the two positions at the end of each work cycle; indexing time = 0.15 min. The fitter performs the work handling elements, and the welder performs all elements related to welding and changing electrodes. Determine the (a) work cycle time and (b) the arc-on time as a fraction of the work cycle time. If the welder and fitter take 30 min of rest breaks during the 8-hr work shift, (c) how many weldments are produced during the shift, and (d) what is the arc-on time as a fraction of the 8-hr shift?
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
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Engineering, 04.07.2019 18:10
Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise
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Engineering, 04.07.2019 18:10
Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.
Answers: 1
Engineering, 04.07.2019 18:10
Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)
Answers: 3
In Example 29.4 (solved in lecture class), the welder works alone, performing not only the welding b...
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