i) Illumination is directly proportional to the luminous intensity of the source. ii) Inverse square law – The illumination of a surface receiving its flux from a point source is inversely proportional to the square of the distance between the surface and the source. iii) Lambert’s cosine law – The illumination of a surface at any point is proportional to the cosine of the angle between the normal at the point and the direction of the luminous flux.
(a) Nature of the work, (b) Architectual design, (c) Surroundings, (d) nature of light and (e) Maintenance.
The factors are as follows: i) Illumination level, ii) Glare, iii) Shadow, iv) Space height ratio, v) Mounting height of the lamp, vi) Area to be illuminated, vii) Colour of surrounding walls, viii) Movement of the object, ix) Utilization factor and x) Depreciation factor.
(a) Production factor increases, (b) Accident decreases, (c) Wastage of products decreases.
Multiple Choice Question (MCQ) of Transmission and Distribution page-3:21. ACSR conductor implies
Multiple Choice Question (MCQ) of Transmission and Distribution page-2:11. In overhead transmission lines the effect of capacitance can be neglected when the length of line is less than
Multiple Choice Question (MCQ) of Transmission and Distribution page-1:1. Which of the following is not the transmission voltage in India ?