Step-by-Step Engineering Tutorials for Easy Learning

5.20 necking in a tensile specimen begins at an engineering strain of 0.20. the corresponding engineering stress at this point is 1000 mpa. determine the work hardening rate at the beginning of necking.
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Service entrance cables must be supported by straps or staples within __________ inches of any electrical enclosure or weatherhead and at intervals not exceeding __________ inches.
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a pressure cooker cooks a lot faster than an ordinary pan by maintaining a higher pressure and temperature inside. the lid of the pressure cooker is well sealed, and steam can escape only through an opening in the middle of the lid. a separate piece of certain mass, the petcock, sits on top of this opening and prevents steam from escaping until the pressure force overcomes the weight of the petcock, forcing it to rock and releasing steam. the periodic escape of the steam in this manner prevents only potentially dangerous pressure buildup and keeps the pressure inside at a constant value. determine the mass of the petcock of a pressure cooker whose operation pressure is 100 kpa gage and has an opening cross-sectional area of 5 mm2 . assume an atmospheric pressure of 101 kpa
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flexural strength is a measure of a material's ability to resist failure in bending. the accompanying data are from an article and are on flexural strength of concrete beams (in megapascal, mpa, where 1 pa (pascal)
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a pwm signal has a pwm frequency of 50 hz and a 20% duty cycle. how long (in milliseconds) is the signal high during each period?
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The metallurgical process in which a metal is obtained in a fused state is called.
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a simple steam power cycle receives 100,000 kj/min as heat transfer from hot combustion gases and rejects 66,000 kj/min as heat transfer to the environment. if the pump power required is 1400 kj/min, determine: a) the thermal efficiency of the cycle. b) the turbine power output in kilowatts.
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8. a metal has a yield strength of 30.5 kpsi at its elastic limit and the strain at that point is 0.00000177. what is the modulus of elasticity? assume that the test specimen is 0.505-in dia and has a 2-in gage length. what is the strain energy at the elastic limit? can you define the type of metal based on the given data?
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The _______ model is characterized by a multistep process in which the steps follow each other in a linear, one-way fashion.
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When three firefighters work together to raise a ladder, one is at the tip, one is at the butt, and the third is positioned:_____.
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2-derive the outputs' boolean equations (written in simplified forms) for decimal to bcd priority encoder such that the smallest digit has the highest priority. show all the steps for the simplification.
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