CHAPTER-8

WORKING DRAWINGS

• Q1: Define Working Drawings.
  Ans:Working drawings are detailed technical drawings used on-site to guide the construction process. They include dimensions, materials, and specifications required to execute the project accurately.
• Q2: Define Technical Drawings.
  Ans:Technical drawings are graphical representations of objects or structures that convey all the necessary information for construction, fabrication, or assembly.
• Q3: Define Vetting of drawings.
  Ans:Vetting of drawings in construction is the process of reviewing the drawings to ensure they are accurate, complete, compliant with codes, and suitable for construction. It helps prevent errors and ensure smooth project execution.
• Q4: How many types of working drawings are in building design?
  Ans:Some of the types are:

  • ➔ Architectural drawings
  • ➔ Structural drawings
  • ➔ Electrical drawings
  • ➔ Plumbing drawings
  • ➔ HVAC (Mechanical) drawings
  • ➔ Interior and finishing drawings
  • ➔ Shop drawings
  • ➔ Landscape drawings
• Q5: Name the set of drawings that fall under Architectural drawings.
  Ans:The set of drawings are as follows:

  • ➔ Site plan
  • ➔ Location plan
  • ➔ Floor plans
  • ➔ Elevations
  • ➔ Sections
  • ➔ Roof plan
  • ➔ Door and window schedule
  • ➔ False ceiling layout
  • ➔ Interior layout
  • ➔ Furniture layout
• Q6: Define Shop Drawings.
  Ans:Shop drawings are detailed drawings provided by contractors, fabricators, or manufacturers to show how specific components will be manufactured or installed, such as doors, windows, cabinets, or structural steel elements.
• Q7: Define Site plan.
  Ans:A site plan is a top-view drawing showing the layout of buildings, roads, parking, landscaping, drainage, and other features on a plot of land.
• Q8: Define Location plan.
  Ans:A location plan shows the site of the proposed building in relation to surrounding features like roads, landmarks, and nearby structures. It helps in identifying the site geographically.
• Q9: Define Section.
  Ans:A section is a vertical cut-through drawing of a building or structure that shows internal components, materials, and heights that are not visible in plan or elevation views.
• Q10: Define Elevation.
  Ans:An elevation is a flat representation of one side of the building showing the exterior view, architectural features, and vertical dimensions.
• Q11: Which types of detail can be shown in a false ceiling plan?
  Ans:Following details can be shown:

  • ➔ Ceiling grid layout
  • ➔ Lighting fixtures
  • ➔ AC ducts and diffusers
  • ➔ Access panels
  • ➔ Material specifications
  • ➔ Levels and heights
• Q12: Define Excavation Drawings.
  Ans:Excavation drawings show the dimensions, levels, and areas to be excavated for foundations, basements, trenches, and other substructures.
• Q13: Define Electrical Drawings.
  Ans:Electrical drawings show the layout and details of the electrical system including wiring, switches, light fixtures, sockets, DB boxes, and circuiting.
• Q14: Define Plumbing Drawings.
  Ans:Plumbing drawings show the layout of the water supply and drainage system, including pipe sizes, locations, fittings, valves, and sanitary fixtures.
• Q15: What do you understand about the Plinth beam layout?
  Ans:Plinth beam layout shows the placement, dimensions, and reinforcement details of beams constructed at plinth level to distribute loads and bind the foundation and superstructure.
• Q16: Define Roof Slab Layout.
  Ans:A roof slab layout shows the arrangement and detailing of the roof slab, including beam placement, reinforcement details, openings for ducts or skylights, and slopes for drainage.
• Q17: Which types of detail can be shown in Mechanical Drawings?
  Ans:Mechanical drawings can show:

  • ➔ HVAC system layout
  • ➔ Ductwork and piping
  • ➔ Ventilation details
  • ➔ Firefighting system
  • ➔ Equipment location and specifications
• Q18: Define General Notes.
  Ans:General notes are a collection of instructions, specifications, and references provided on the drawing sheet to guide the construction team on standards, materials, and codes.
• Q19: What do you know about Miscellaneous Drawings?
  Ans:Miscellaneous drawings include all other drawings not covered under main categories, such as stair details, railing, signage, parking layout, boundary walls, or custom features.
• Q20: State the diameters used in plumbing pipes.
  Ans:Following diameters are used:

  • ➔ Soil Pipe – 4” dia.
  • ➔ Waste Pipe – 3” dia.
  • ➔ Sewer Pipe – 6” dia.
  • ➔ Vent Pipe – 4” dia.
  • ➔ Manhole – 2’ x 2’
• Q21: Define Septic Tank.
  Ans:A septic tank is an underground chamber used for the treatment of wastewater through biological decomposition and drainage. It is commonly used in areas without a centralized sewage system.
• Q22: Define O.H.W.T.
  Ans:O.H.W.T. stands for Over Head Water Tank, which is a storage tank placed above building roof level to supply water by gravity to the building.