Q2. A meeting hall in an organization is to be provided with a lighting installation. The hall is 30 m × 20 m × 8 m (high). The mounting height is 5 m and the required level of illumination is 144 Im/m². Design a lighting system for the hall with the given data. Lumens/watt for 200-W lamp = 12 and Lumens/ watt for 500-W lamp = 16. Utilization coefficient = 0.6 Maintenance factor = 0.75 space/height ratio=1 Using metal filament lamps, estimate the following: 1. Flux 2. Luman output per 200 W lamp 3. Luman output per 500 W lamp

Q2. A meeting hall in an organization is to be provided with a lighting installation. The hall is 30 m × 20 m × 8 m (high). The mounting height is 5 m and the required level of illumination is 144 Im/m². Design a lighting system for the hall with the given data. Lumens/watt for 200-W lamp = 12 and Lumens/ watt for 500-W lamp = 16. Utilization coefficient = 0.6 Maintenance factor = 0.75 space/height ratio=1 Using metal filament lamps, estimate the following: 1. Flux 2. Luman output per 200 W lamp 3. Luman output per 500 W lamp

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Vdc0 U=12 V Circuit #1 Ried V LED www Ried_series 0.05 Vdc0 U = 12 V 0,04 Circuit 0.03 0.02 0.01 RED LED GREEN LE Set current to 10 mA LED voltages Given the circuit #1 presented above, answer the following questions: BLUE_LEC Red 0.5 1) Determine the value of the V₁ (voltage forward of the LED) for the LEDS RED, VDRED GREEN, VREEN and BLUE, VOBLUES when the current through the LEDs is 10mA, 2) Is the LED in Circuit #1, connected in the way that will be lighting up or not - Justify your answer Green 3) Calculate the value of the resistance Rled in Circuit #1, to ensure that a RED LED will have a current of 10 mA 1.5 2 25 Voltage across LED (V) 4) Calculate the value of the resistance Rled in Circuit #1, to ensure that a GREEN LED will have a current of 10 mA Blue 5) Calculate the value of the resistance Rled in Circuit #1, to ensure that a Blue LED will have a current of 10 mA 6) Given three LEDs, connected in series as shown in the Circui # 2 (below), calculate the value of the…
This multiple choice Questions from MEASUREMENTS INSTRUMENTATION course.
Module 10 Section Review 3.0.0.png Additional Resources Electronics Fundamentals: Circuits, Devices, and Applications, Principles of Electric Circuits, Thomas L. Floyd. New York: Prent 3.0.0 Section Review 1. The letter designation SL on an electrical draw- ing indicates a 4. A a. a. limit switch b. low-voltage switch c. load switch d. light switch b. C. d. 2. Existing power lines on an electrical site plan may be indicated by the letter 5. In t safe a. E b. I a. b. 2 С. Р d. V C. 2 d. 2: 3. The specific types of luminaires required in an installation can be found on the a. power plan b. electrical site plan c. schematic diagram d. lighting fixture schedule P Search for anything
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A crystal frequency of 8 MHz is used for the 8284. What is the clock frequency?
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