Engineering

An Otto cycle with air as the working fluid has a compression ratio of 8.2. The ambient temperature is 298K. The maximum temperature of the Otto cycle is 2000K. Under cold air standard conditions, the thermal efficiency of this cycle is ____
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A steel component with ultimate tensile strength of 800 MPa and plane strain fracture toughness of 20 MPam is known to contain a tunnel (internal) crack of length 1.4 mm. This alloy is being considered for use in a cyclic loading application for which the design stresses vary from 0 to 410 MPa. Would you recommend this alloy for this application
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2 accidentes que puede sufrir un fontanero, instalando una tubera.
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determine the number of flipflops required to build a binary counter that count from 0 to 2043
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Consider the need to insulate a flat wall using three different insulating materials, each having the same thickness. The materials have constant thermal conductivities, k, of 1, 2, and 3 Wm-1 K-1 . You are asked to advise workers on the proper installation order of the three materials so that the final composite will be the most effective at reducing heat loss from the wall. Which statement is true
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what is an OTG USB? how is it useful
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The base of an aluminum block, which is fixed in place, measures 90 cm by 90 cm, and the height of the block is 60 cm. A force, applied to the upper face and parallel to it, produces a shear strain of 0.0060. The shear modulus of aluminum is . What is the displacement of the upper face in the direction of the applied force
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A steam turbine receives steam at 1.5MPa and 220oC, and exhausts at 50kPa, 0.75 dry. Neglecting heat losses and changes in kinetic and potential energy, estimate the work output per kg steam.If when allowance is made for friction, radiation and leakages losses, the actual work of that estimated in (a), calculate the power output of the turbine when consuming 600kg of steam per minute.
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answer this qustion plz
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Consider CO at 500 K and 1000 kPa at an initial state that expands to a final pressure of 200 kPa in an isentropic manner. Report the final temperature in units of K and using three significant digits.
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the heat treatment process depends on 3 steps according to the time-temperature cycle. Name and Briefly describe each one
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Question 1: Determine the maximum load P the steel bracket can withstand if the steel bracket has a circular cross section with a diameter of 1.2 in, and has an allowable normal stress of allow
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A 40-mm-diameter solid steel shaft, used as a torque transmitter, is replaced with a hollow shaft having a 40-mm outer diameter and a 36-mm inner diameter. If both materials have the same strength, what is the percentage reduction in torque transmission
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: 6
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Reducing the CFM through the evaporator will cause the amount of moisture removed from the air to ____________________. A. stay the same B. decrease C. increase
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A recessed luminaire bears no marking indicating that it is ""Identified for Through- Wiring."" Is it permitted to run branch-circuit conductors other than the conductors that supply the luminaire through the integral junction box on the luminaire?
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______ is not a type of digital signaling technique
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what is the term RF exiciter?
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5-2 discussion: the role of communication in success
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If a corporation is socially responsible, it will develop and implement a sustainability plan and communicate it to stakeholders.TrueFalse
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an atom that gained an electron is called
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Troy must keep track of the amount of refrigerant he uses from a 50-pound cylinder to ensure that accuraterecords are kept. He used 13 pounds on a systein for Ms. Jones and 9 pounds on a system for a commercialclient. How many pounds should he have left in the cylinder?tofTroy should havepounds of refrigerant left in the cylinder.baon naid Thamar basic 12
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Why are magnets been placed in speaker
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Maggie discovered that a pipe in her basement has sprung a leak. She calls a plumber but in the meantime she grabs a roll of duct tape and wraps it around the pipe to stop the water from leaking. The duct tape in this situation is similar to _____ in that it/they _____.
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