Architecture and Planning Miscellaneous-topic

Architecture and Planning Miscellaneous-topic

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Architecture and Planning Miscellaneous

Architecture and Planning Miscellaneous-topic
  1. A lamp source of 3200 candela is mounted on a wall at a height of 2 meter from the work-plane. It subtends an angle of incidence of 60° with the center of the work plane. The illumination at the centre of the work plane in Lux is __________








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    Eθ E cosθ
    Eθ = 3200 cos 60θ = 1600

    Illumination =
    Eθ
    		 =
    1600
    		 = 100
    d²16

    Correct Option: B

    Eθ E cosθ
    Eθ = 3200 cos 60θ = 1600

    Illumination =
    Eθ
    		 =
    1600
    		 = 100
    d²16

  1. A four-story building with equal areas in each floor is required to be designed on a plot with FAR of 2.0. If the FAR is increased to 2.2, the percentage increase in ground coverage utilizing full FAR in both cases will be ___________








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    5 to 10
    Let area be 100 units.
    FAR = 2
    Which means, Built up area = 2 × 100 = 200 units.
    As each floor has equal area, so each floor area = 200/4 = 50 units.
    So, ground coverage will be 50 m².
    In second case,
    site area = 100 units.
    Therefore, Built up area = 220 units as FAR = 2.2
    Ground coverage = 220/4 = 55
    So ground coverage is increased from 50 to 55.

    Therefore, change in% =
    55 - 50
    		 × 100 = 10%
    50

    Correct Option: C

    5 to 10
    Let area be 100 units.
    FAR = 2
    Which means, Built up area = 2 × 100 = 200 units.
    As each floor has equal area, so each floor area = 200/4 = 50 units.
    So, ground coverage will be 50 m².
    In second case,
    site area = 100 units.
    Therefore, Built up area = 220 units as FAR = 2.2
    Ground coverage = 220/4 = 55
    So ground coverage is increased from 50 to 55.

    Therefore, change in% =
    55 - 50
    		 × 100 = 10%
    50

  1. The difference in invert levels between two pits separated by a distance of 30 meter is one meter. An intermediate pit is required to be constructed at a distance of 18 meter from the pit at higher level. Maintaining the same slope, the difference in invert levels of the new pit and the pit at lower level in mm will be _________








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    400 to 400

    30
    		 =
    12
    		 ⇒ x =
    12
    		 = 0.4 m = 400 mm
    1x30

    Correct Option: A

    400 to 400

    30
    		 =
    12
    		 ⇒ x =
    12
    		 = 0.4 m = 400 mm
    1x30

  1. The estimated number of bricks (unit size: 250 mm × 125 mm × 75 mm) for laying one course of a 250 mm thick brick wall using rat-trap bond for a running length of 3.9 meter will be ___________








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    36

    Length required for the 2 Corners (4 bricks in nos.) = 2 x (75 + 75) = 300 mm = 0.3m
    Length covered by the Penultimate headers laid on edge (2 bricks)= 0.25 m
    Thus effective brick wall length in the centre = 3.9 – (0.3 + 0.25) = 3.35 m
    The central part of the brick masonary will have a module of stretcher and header on edge (3 bricks in no.) taking up wall length = 75 + 250 = 325 mm = 0.325m
    Now, 3.35/0.325 = 10.3 nearly 10 modules = 30 bricks
    Total no. of bricks = bricks in the corners + bricks in the centre wall +bricks before the last corner = 4 + 30 + 2 = 36
    Total bricks required = 36

    Correct Option: A

    36

    Length required for the 2 Corners (4 bricks in nos.) = 2 x (75 + 75) = 300 mm = 0.3m
    Length covered by the Penultimate headers laid on edge (2 bricks)= 0.25 m
    Thus effective brick wall length in the centre = 3.9 – (0.3 + 0.25) = 3.35 m
    The central part of the brick masonary will have a module of stretcher and header on edge (3 bricks in no.) taking up wall length = 75 + 250 = 325 mm = 0.325m
    Now, 3.35/0.325 = 10.3 nearly 10 modules = 30 bricks
    Total no. of bricks = bricks in the corners + bricks in the centre wall +bricks before the last corner = 4 + 30 + 2 = 36
    Total bricks required = 36

  1. In a housing project, the number of LIG, MIG and HIG units are in the ratio of 1:1:2. The ratio of areas of the units is 3:5:8. Assume unit cost of construction is same for all the three types. For a no profit no loss situation, if 10% discount is offered to LIG and MIG units on sale price, extra charge in percentage payable per HIG unit will be ____________








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    5 to 5
    No. of LIG = 1,No. of MIG = 1,No. of HIG = 2
    Total area of LIG = 1 × 3 = 3 units
    Total area of MIG = 1 × 5 = 5 units
    Total area of HIG = 2 × 8 = 16 units
    We assume that,
    Cost of construction for all LIG = 3 units
    Cost of construction for all MIG = 5 units
    Cost of construction for all HIG = 16 units
    As 10% is on LIG, so 10% on 3 units = 0.3 would be burden on HIG
    As 10% is on MIG, so 10% on 5 units = 0.5 would be burden on HIG
    Total, 0.3 + 0.5 = 0.8 would be burden on HIG cost which totals 16 units
    So,% change in cost = (0.8/16) × 100% = 5%

    Correct Option: C

    5 to 5
    No. of LIG = 1,No. of MIG = 1,No. of HIG = 2
    Total area of LIG = 1 × 3 = 3 units
    Total area of MIG = 1 × 5 = 5 units
    Total area of HIG = 2 × 8 = 16 units
    We assume that,
    Cost of construction for all LIG = 3 units
    Cost of construction for all MIG = 5 units
    Cost of construction for all HIG = 16 units
    As 10% is on LIG, so 10% on 3 units = 0.3 would be burden on HIG
    As 10% is on MIG, so 10% on 5 units = 0.5 would be burden on HIG
    Total, 0.3 + 0.5 = 0.8 would be burden on HIG cost which totals 16 units
    So,% change in cost = (0.8/16) × 100% = 5%