Engineering, 02.10.2019 06:00 jacamron
Consider a first come first served (fcfs) cpu scheduler with the following process profile: process arrival time cpu burstp1 t 5p2 t+2 7p3 t+4 3p4 t+6 9p5 t+8 1p6 t+10 5assume that the cpu is idle and there are no other processes in the ready queue when process p1 arrives. determine the schedule of process execution, and compute the wait times for each of the six processes. which of the following is true about the average wait time and the maximum wait time for the six processes? (points : 4) average wait time is less than 9.0 time units; maximum wait time is more than 15.0 time units average wait time is more than 7.5 time units; maximum wait time is more than 16.0 time units average wait time is less than 8.5 time units; maximum wait time is less than 16.5 time units average wait time is less than 9.0 time units; maximum wait time is less than 16.0 time units
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
Answers: 3
Engineering, 04.07.2019 18:10
For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater
Answers: 3
Engineering, 04.07.2019 18:10
Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1
Answers: 1
Engineering, 04.07.2019 18:20
Acertain flow of air (at stp) has a velocity distribution given by v i (in ft/s). if this flow is going through a 4 ft square area in the yz-plane (centered at the origin), what is the mass flow rate (in lbm/s)?
Answers: 2
Consider a first come first served (fcfs) cpu scheduler with the following process profile: process...
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