Engineering, 14.04.2020 21:45 meganwintergirl
"Simplex locks are keyless locks that have a sequence of buttons. You press the proper combination of buttons, and the lock opens. A typical lock has five buttons. A combination might be set to three buttons, and then you need to press them in the same order. You never press the same button twice."
For example the lock for the restroom at the Rob Hill campground in the San Francisco Presidio is opened by the combination 425, as I figured out by trial and error. (They probably changed it by the time you read this.)It is also possible to define combinations with four or five buttons. Is that more secure? Would it be much better to have six buttons?
Answers: 2
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 18:20
Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent
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Engineering, 04.07.2019 19:10
What is the main objective of using reheat rankine cycle?
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Engineering, 04.07.2019 19:10
The proportional limit is always greater than the yield strength for a material. a)-trune b)- false
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"Simplex locks are keyless locks that have a sequence of buttons. You press the proper combination o...
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