Solution: Determine the number of fluorescent lamp required

Problem Statement: Electrical Engineering Professional Subjects

A hall 35 m x 20 m is to be provided with a general illumination of 130 lux. If the depreciation factor is 1.4 and the coefficient of utilization is 0.50, determine the number of fluorescent lamp required. Assume luminous efficiency of the fluorescent tube as 50 lumens per watt for 80-watt lamp.

A. 62 lamps

B. 65 lamps

C. 63 lamps

D. 64 lamps

Problem Answer:

The number of fluorescent lamp required is equal to 64 lamps.

More Questions in: Illumination Problem

Related Content

201 Terms and Definitions in Algebra for the Mathematics Engineering Board Exam

This offer has expired! SubscribePREMIUM PROMO: Remove Ads!! Get Freebies!!! and Get EXTRA MONTHS before Time EXPIRED! Introduction If there is one subject that cuts across every engineering discipline in the Philippine licensure examinations, it is algebra. Whether you are reviewing for the ECE, EE, CE, ME, ChE, or any other PRC board exam, algebra is always there. It shows up in the pure mathematics portion, in engineering sciences, and even embedded inside problems that appear to be about something else entirely. A circuit analysis problem is really an algebra problem in disguise. A beam loading problem reduces to a

Solution: Determine the simple interest rate and the corresponding discount rate

Problem Statement: CHAPTER 2 Interest and Money-Time Relationship Solved Supplementary Problem 2.10 Mr. J. de la Cruz borrowed money from a bank. He received from the bank P1,342 and promises to repay P1,500 at the end of 9 months. Determine the simple interest rate and the corresponding discount rate or often referred to as the “Banker’s discount.” This offer has expired! SubscribePREMIUM PROMO: Remove Ads!! Get Freebies!!! and Get EXTRA MONTHS before Time EXPIRED! Problem Answer: The rate of discount is equal to 10.53% and the simple interest rate is equal to 11.77%. More Questions in: Engineering Economics (Annuity, Depreciation,

Solution: Determine the exact simple interest on P5,000

Problem Statement: CHAPTER 2 Interest and Money-Time Relationship Solved Supplementary Problem 2.4 Determine the exact simple interest on P5,000 for the period from Jan.15 to Nov.28, 1992, if the rate of interest is 22%. This offer has expired! SubscribePREMIUM PROMO: Remove Ads!! Get Freebies!!! and Get EXTRA MONTHS before Time EXPIRED! Problem Answer: The exact simple interest on P5,000 is P955.74. More Questions in: Engineering Economics (Annuity, Depreciation, Bonds, Breakeven, etc.) Also Questions in: Engineering Economics (Simple & Compound Interest) Online Questions and Answers in Engineering Economics Series of MCQ in Engineering Economics

Solution: M purchased a small lot in a subdivision, paying P200,000 down and promising to pay P15,000

Problem Statement: CHAPTER 2 Interest and Money-Time Relationship Solved Supplementary Problem 2.15 M purchased a small lot in a subdivision, paying P200,000 down and promising to pay P15,000 every 3 months for the next 10 years. The seller figured interest at 12% compounded quarterly. This offer has expired! SubscribePREMIUM PROMO: Remove Ads!! Get Freebies!!! and Get EXTRA MONTHS before Time EXPIRED! (a) What was the cash price of the lot? (b) If M missed the first 12 payments, what must he pay at the time the 13th is due to bring him up to date? (c) After making 8 payments,