The inspection department in a factory is currently illuminated by eight overhead incan- descent lamps with...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
The inspection department in a factory is currently illuminated by eight overhead incan- descent lamps with reflectors. Each lamp is 100 watts and has a luminous efficacy of 16 lumens/watt. It is proposed that the incandescent lighting be replaced with three fluorescent lamps rated at 40 watts. The luminous efficacy of each fluorescent lamp is 85 lumens/watt. Compare (a) the illuminance levels and (b) annual electricity costs of the two alternatives, given that they will operate three shifts (24 hr/day), 250 days/year, and power cost is 6.5 cents per kW-hr. (c) Each incandescent lamp has a lamp life of 1500 hr and costs $0.60. Each fluorescent lamp has a lamp life of 15,000 hr and costs $6.00. Determine the annual cost of lamps for the two alternatives. The inspection department in a factory is currently illuminated by eight overhead incan- descent lamps with reflectors. Each lamp is 100 watts and has a luminous efficacy of 16 lumens/watt. It is proposed that the incandescent lighting be replaced with three fluorescent lamps rated at 40 watts. The luminous efficacy of each fluorescent lamp is 85 lumens/watt. Compare (a) the illuminance levels and (b) annual electricity costs of the two alternatives, given that they will operate three shifts (24 hr/day), 250 days/year, and power cost is 6.5 cents per kW-hr. (c) Each incandescent lamp has a lamp life of 1500 hr and costs $0.60. Each fluorescent lamp has a lamp life of 15,000 hr and costs $6.00. Determine the annual cost of lamps for the two alternatives.
Expert Answer:
Answer rating: 100% (QA)
To compare the illuminance levels and annual electricity costs of the two alternatives we need to calculate the relevant values for each option a Illuminance Levels The illuminance level is a measure ... View the full answer
Related Book For
Essentials Of Business Statistics
ISBN: 9780078020537
5th Edition
Authors: Bruce Bowerman, Richard Connell, Emily Murphree, Burdeane Or
Posted Date:
Students also viewed these mathematics questions
-
Managing Scope Changes Case Study Scope changes on a project can occur regardless of how well the project is planned or executed. Scope changes can be the result of something that was omitted during...
-
The finishing department in a factory has the following payroll data for the month just ended: Direct Workers Indirect Workers Total attendance time 2,640 hours 940 hours (Including overtime) ...
-
The maintenance department in a factory claims that the number of breakdowns of a particular machine follows a Poisson distribution with a mean of two breakdowns every 500 hours. Let x denote the...
-
Please complete the Web case that covers material discussed in this chapter at www.cengage.com/accounting/Gibson. Youll be using Thomson ONE Business School Edition, a powerful tool that combines a...
-
For the infinite slot (Ex. 3.3) determine the charge density (y) on the strip at x = 0, assuming it is a conductor at constant potential V0.
-
Hospital autopsies include which of the following? a. Inpatients only b. Inpatients and outpatients who die in the hospital c. Inpatients, outpatients, and home care patients d. Inpatients and any...
-
The final journal entry to record for bonds payable is b. Cash..... a. Bonds Payable Cash....... Bonds Payable... XXX XXX XXX XXX c. Interest Expense... XXX Cash......... XXX d. Discount on Bonds...
-
A 0.2-m-wide plate, 0.8 m long, is placed on the bottom of a shallow tank. The plate is heated, and maintained at a constant surface temperature of 60°C. Liquid water 12 cm deep flows over the...
-
Ontario's Evidence Act as well as the Canada Evidence Act . You will need to locate the appropriate section in both Acts that address the question. For each question, please answer the question for...
-
write a closed-research legal memo using the case cases given, addressing whether Mr. Adler can assert an adverse possession claim to Scrub Lot 40. Please write up your memo using the issue , brief...
-
Which of the following is an uncontrollable external variable that could most likely cause China Mobile to think about building a manufacturing plant in the United States (a BIG decision) instead of...
-
What information should be conveyed to investors when pitching the financial plan?
-
What is a schedule variance? What are the two ways a schedule variance is measured?
-
In your opinion, should prosecutors' offices have to explain to the public why they declined to file charges in cases? What would be some ramifications of such a requirement?
-
What is the difference between convertible preferred shares and participating preferred shares?
-
Of the three models of prosecuting cases-horizontal model, vertical model, and mixed modelwhich do you think would be most appropriate for the prosecutor's office where you attend school?
-
For the following table: Primary keys Eliminate duplicate data Eliminate unnecessary dependancies Apply 3 rules of normalization 1NF - 2 NF - 3NF ID Movie Title Mov01 Mov02 Mov03 Fast and Furious 1...
-
-x/2 x/4 If A = -x/2 and A-1 =6 then x equals
-
A bank manager has developed a new system to reduce the time customers spend waiting to be served by tellers during peak business hours. Typical waiting times during peak business hours under the...
-
Discuss how we use residual plots to check the regression assumptions for multiple regressions.
-
Consider the sample of 60 bottle design ratings given in Table 1.5 (page 10). Use these data to carry out a chi-square goodness-of-fit test to determine whether the population of all bottle design...
-
Why are auditors concerned with related parties during the planning process?
-
The auditor will not ordinarily initiate discussion with the audit committee concerning the a. Extent to which the work of internal auditors will influence the scope of the audit. b. Extent to which...
-
Which of the following should an auditor obtain from the predecessor auditor prior to accepting an audit engagement? a. Analysis of balance sheet accounts. b. Analysis of income statement accounts....
Study smarter with the SolutionInn App