A proposal has been submitted to replace a group of assembly workers, each workingindividually, with an assembly line. The following table gives the individual work elements.Element Te (min) Immediate predecessors11.020.530.81,240.351.230.23,470.5481.55,6,7The demand rate for this job is 1600 units/week (assume 40 h/week) and the current numberof operators required to meet this demand is eight using the individual manual workers.a) Construct the precedence diagram from the data provided on work elements.b) Use the (i) Kilbridge and Wester rule and (ii) ranked positional weights method to assignwork elements to stations, respectively.c) What is the balance delay for the solutions?d) The initial cost to install the assembly line is $2,000,000. If the hourly rate for workers is$50.00/h, will the assembly line be justified using a 3-year service life? Assume 50weeks/yr. Use a rate of return of 10%.2.

Precedence diagram is a diagram that visually represents what activities must be completed before…

Answered: a) Construct the precedence diagram…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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True, False or Uncertain. Explain your answer. Own wage elasticity JELLlincrease if product demand elasticity n? is high. In short run, when there is an increase in wage rate, each firm will hire less labor and so the industry labor demand is simply the horizontal summation of firm's labor demand. а. b. Labor demand is represented by the marginal revenue produce schedule (MRP) when we have competitive product market while it will be represented by the value of marginal product schedule (VMP) when we have a product market monopolist. When elasticity of substitution, SLK, increase that means the L and K are less substitutable, and the isoquant will be L-shaped. Minimum wage imposed by the government is always bad for the economy because it increase unemployment and deadweight loss. с. d. e. 3.
The gross requirements for item Z are specified for the beginning of weeks 1 through 8 in the table that follows. Gross Requirements for Item Z 1 2 3 6 7 8 Week 4 Gross Requirement 180 90 180 0 360 0 90 90 The lead time is 2 weeks. The current on hand inventory, at the beginning of week 1 is 360 units. If the order cost is $540 per order and the inventory cost is $3 per unit per period, and the order quantity is the computed part period (or a multiple of the computed part period) when it is necessary to place an order, what is the total cost for the 8 week period? Report as a whole number with no commas. Answer: The correct answer is: 4590
6. A die forge press operates an average of 1000 hr/yr. Under a minimal repair concept, machine failures generated a nonhomogenous Poisson process having the following intensity function with t measured in operating hours: p (t) = 0.0000391t 07. When the machine has failed, the repair time is lognormal with tmed -7.0 hours and as hape parameter of 0.8. a) Write the expression for and calculate the MTBF, mean time between failures, for the mission time of 5 yr = 5,000 hr. b) Using this information over the 5 yr mission time, write the expression for and calculate the average inherent, steady state, Availability, Ainh of the mission time of 5 yr operating life of the press.
An assembly line is to be designed to operate 71⁄2 hours per day and supply a steady demandof 300 units per day. Here are the tasks and their performance times: Performance Performance Preceding Time Preceding Time Task Tasks (Seconds) task Tasks (Seconds) a — 70 g d 60 b — 40 h e 50 c — 45 i f 15 d…
6. A die forge press operates an average of 1000 hr/yr. Under a minimal repair concept, machine failures generated a nonhomogenous Poisson process having the following intensity function with t measured in operating hours: p (t) = 0.0000391t 0.7. When the machine has failed. the repair time is lognormal with tmed -7.0 hours and a shape parameter of 0.8. a) Given the NHPP (Non-Homogeneous Poisson Process) time dependent parameter of this problem, p(t), does the system show reliability growth (decreasing rate of occurrence of failure) or aging (increasing rate of occurrence of failure)? b) Write the expression for and calculate the number of expected failures of the press during a mission time of 5 years, 5,000 hr, m(5,000). c) Write the expression for and calculate the MTTR, meantime to repair. Given s = 0.8, comment on the overall shape or skewness, low skew, high skew, - symmetric, of the Lognormal model. d) Write the expression for and calculate the MTBF, mean time between failures,…
Question: A 2-station flow system operates with m = 1 each. Jobs arrive every 5 minutes on average with CV 1.2. The service rate of the first station is 15 per hour with CV 0.5, and the service rate of the second station is 20 per hour with CV 0.75. What is the wait time on average for the second station? a. b. - F Assume that the job arrival rate is now 15 per hour, and that the second station has a limited queue size of 6. What are the throughput and cycle time for the line now?
The data provided by a company for the year 2020 – 2021 to carry out Break Even Analysis and provide them the results, complete analysis and suggestions. The data is as follows:Building rent 20000 R.O Every month instalments 30000 R.OThe estimated sales are 750000.0 R.OMaterial Cost / unit 15.0 R.OProduction cost / unit 8.0 R. OTransportation & other Costs / unit (Approx) 4.00 R. O Maintenance cost / unit 1.5 R. O Salary of the employees / unit 0.8 R.OMarketing and advertisement cost / unit 0.7 R. OEach unit is sold at price 35.0 R. O Construct the B.E.P chart on a graph sheet and indicate, B.E.P, M.o.S and also indicate the new B.E.P & M.o.S after the improvement measures has been taken (With different colours). Show the calculations for the following parameters separately before and after the measures taken.1. Determine the B.E.P2. Determine the profit 3. Margin of safety.Also write your decisions taken to improve the profits of the company and to reduce the B.E.P.
1. A certain batch of parts is routed through six machines in a batch production plant. The setup and operation times for each machine are given in the table below. Batch size is 200 and the average nonoperation time per machine is15 hr. Determine (a) manufacturing lead time and (b) hourly production rate for operation 4.Machine 1 2 3 4 5 6Setup time (hr) 5 3 6 4 5 3Operation time (min) 3.0 3.3 8.2 3.9 4.5 2.3 a. 6(4.3+200(3.9/60)+15) = 193.8 hours 24.2 days if 8 hour shiftb. 4(60)+200(3.9)/200 =5.1 hourly production for operation 4 2. Suppose the part in the previous problem is made in very large quantities on a production line in which an automated work handling system is used to transfer parts between machines. Transfer time between stations is 30 sec. total time required to setup the entire line is 102 hr. Assume that the operation times at the individual machines remain the same as in the previous problem, Determine (a) manufacturing lead time for a part coming off the line,…
1) An electric motor’s torque is a function of the speed at which it rotates. Many brushed AC motors have a linear toque curve as shown below. If the power output of the motor is equal to the torque (T) multiplied by the rotational speed in rad/s (w), what is the maximum power you can get out of the motor if the stall torque (Tstall) is 0.001 Nm and the no load speed (wno load) of 10,500 RPM? Give answer in Watts.
Consider the following tasks that must be assigned to four workers on a conveyor-paced assembly line (i.e., a machine-paced line flow). Each worker must perform at least one task. There exists unlimited demand unless stated otherwise. Time to Complete Task (seconds): Task 1: 30 Task 2: 25 Task 3: 15 Task 4: 20 Task 5: 15 Task 6: 20 Task 7: 50 Task 8: 15 Task 9: 20 Task 10: 25 Task 11: 15 Task 12: 20 The current conveyor-paced assembly-line configuration assigns the workers in the following way: • Worker 1: Tasks 1, 2, 3 • Worker 2: Tasks 4, 5, 6 • Worker 3: Tasks 7, 8, 9 • Worker 4: Tasks 10, 11, 12 What is the capacity of the current line (in units per hour)?
Given the cost function C(x) and the revenue function R(x), find the number of units x that must be sold to break even. C(x) = 14x + 56,000 and R(x) = 18x. How many units must be produced and sold in order to break even? units Help me solve this View an example Get more help - Clear a
A dealer of white goods buys washing machines from Arçelik. In their next order, they plan to buy two models for which the related data are as follows: Washing machine model 2. Annual demand (units) 6800 8500 Ordering cost (TL) 125 125 Unit purchasing cost (TL) 2400 1900 Transportation cost per unit (TL.) 250 220 The dealer has allocated a budget of 23,000 TL for the transportation of the machines from the factory. Assume that the anmual invontory carrying cost rate is 30 percent. Calculate the unconstrained order quantities. Are these values optimal? If not, determine the optimal quantities to be stored from each model (Hint: is 0.337)

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