lilacsalmon854Lv1in Mechanical Engineering·24 Mar 2020What should wheel bearing seals be checked for? A. Smoke B. Color changes C. Leaks D. Gasoline E. All of the above
blushclam517Lv1in Mechanical Engineering·27 Jan 2020Human factors is the study of which characteristics?
bronzewildebeest202Lv1in Mechanical Engineering·27 Jan 2020Inventory costing methods place primary reliance on assumptions about the flow of A) goods B) cost C) resale prices D) values
olivellama804Lv1in Mechanical Engineering·19 Feb 2020logistics is most closely related to which element of the marketing mix? a) Product b) Place c) Promotion d) Production
taupealpaca887Lv1in Mechanical Engineering·27 Jan 2020Share point analysis includes all of the following steps except: A) Estimate industry sales B) Compute gross margin per share point C) Estimate the firm's market share D) Estimate the firm's return on investment E) Compute sales revenue per share point
sapphiresquirrel785Lv1in Mechanical Engineering·17 Apr 2020Which of the following may occur during an annealing heat treatment? A. Stresses may be relieved. B. Ductility may increase. C. Toughness may increase. D. A specific microstructure may be produced E. All of the above.
burgundywoodchuck699Lv1in Mechanical Engineering·20 Apr 2020The otto-cycle engine in a Mercedes-Benz slk230 has a compression ratio of 8.8. What is the ideal efficiency of the engine? Use:
orangelouse824Lv1in Mechanical Engineering·25 Mar 2020Periodic tune-ups are important because they A. Extend the life of your cars B. Help you avoid costly repairs C. Prevent dangerous breakdowns d. All of the above
ochrebutterfly771Lv1in Mechanical Engineering·20 May 2020At the beginning of the compression process of an air standard otto cycle. P1= 1 bar, T1= 290k and V1= 400cm^3. The max Temperature in the cycle is 2200 K and the compression ratio is 8. Determine A) the heat addition in KJ B) the Net-work in kJ c) the thermal efficiency
pearlizard56Lv1in Mechanical Engineering·21 Apr 2020Which of the following may occur during annealing? A. Stresses may be relieved B. Toughness may increase C. Ductility may increase D. All of the above
aquamarinespider803Lv1in Mechanical Engineering·20 May 2020An ideal Otto cycle with Argon as the working fluid has a compression ratio of 6.8. The minimum and maximum temperatures in the cycle are 450 R and 2,260 R. Assuming constant specific heats, determine (a) the amount of heat transferred to the argon during the heat-addition process (b) the thermal efficiency (c) the thermal efficiency of a Carnot cycle operating between the same temperature limits
byzantiumoyster626Lv1in Mechanical Engineering·20 May 2020An ideal Otto cycle has a compression ratio of 10.5, takes in air at 90 kPa and , and is repeated 2500 times per minute. Using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kW of power.
greencheetah907Lv1in Mechanical Engineering·20 May 2020Calculate the theoretical efficiency for an otto cycle engine with γ=1.40 and r=9.50.
grayant846Lv1in Mechanical Engineering·28 May 2020The 2-lb brick slides down a smooth roof, such that when it is at A, it has a velocity of 5 ft/s. Determine the speed of the brick just before it leaves the surface at B, the distance d from the wall to where it strikes the ground, and the speed at which it hits the ground.