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JEE B.Arch practice questions

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Question 1Aptitude Test (B.Arch.)

In an architectural drawing, a line drawn with alternating long dashes and two short dashes is conventionally used to indicate which of the following?

  1. An overhead feature such as a beam or projecting slab Correct answer.
  2. A section cutting plane
  3. A property boundary line
  4. A hidden internal edge

Explanation

Dashed lines in architectural drafting are classified by dash pattern: a long dash followed by two short dashes conventionally denotes overhead or above-cut-plane construction such as beams, lintels and projecting slabs. Hidden edges use evenly spaced short dashes, while a property boundary uses the chain line of one long dash and one dot.

Question 2Aptitude Test (B.Arch.)

A cube is painted on all faces and then cut into 64 identical smaller cubes. How many of the small cubes have exactly two painted faces?

  1. 8
  2. 32
  3. 24 Correct answer.
  4. 16

Explanation

A 4×4×4 dissection gives 12 edges, each carrying 2 cubes with exactly two painted faces (the corner cubes being excluded), so the total is 12 × 2 = 24. Corner cubes carry three painted faces and face-interior cubes carry one.

Question 3Aptitude Test (B.Arch.)

A plan is drawn at a scale of 1:50. A corridor measures 84 mm on the drawing. What is its actual length?

  1. 8.4 m
  2. 2.1 m
  3. 16.8 m
  4. 4.2 m Correct answer.

Explanation

At 1:50, one millimetre on paper represents 50 mm, i.e. 0.05 m, on site. Multiplying 84 mm by 0.05 m gives 4.2 m, which is the real corridor length.

Question 4Aptitude Test (B.Arch.)

Which structural system is most appropriate for a 30-storey residential tower where column-free floor plates and rapid construction are priorities?

  1. Reinforced concrete shear-wall core with flat slabs Correct answer.
  2. Timber post-and-beam framing
  3. Space frame roof trusses
  4. Load-bearing masonry walls

Explanation

A reinforced concrete core acting as the lateral stability system, combined with flat slabs on columns, gives column-free interiors and fast repetition of floors in tall buildings. Masonry cannot carry such heights economically, and roof trusses do not address vertical or lateral framing of a tower.

Question 5Aptitude Test (B.Arch.)

A room has a plan of 4 m × 5 m and a clear height of 3 m. Ignoring openings, what is the total internal surface area of the four walls?

  1. 27 m²
  2. 60 m²
  3. 108 m²
  4. 54 m² Correct answer.

Explanation

The wall perimeter is 2 × (4 + 5) = 18 m, and multiplying by the height of 3 m gives 54 m². Openings are excluded by the question, so no deductions are needed.

Question 6Aptitude Test (B.Arch.)

In an architectural composition, a series of columns spaced at progressively decreasing intervals towards a porch creates which visual effect?

  1. Static monotony that flattens the facade
  2. Rhythmic acceleration that draws the eye to the entrance Correct answer.
  3. Random asymmetry with no visual direction
  4. Symmetrical balance about a central axis

Explanation

Regular repetition with a changing interval is rhythm; when the interval shortens, the rhythm accelerates and directs attention along the sequence to the terminal element. This is a standard device for emphasising entry points in classical and modern facades alike.

Question 7Aptitude Test (B.Arch.)

A building orientation places its long axis east–west in a hot-dry climate. Which consequence is most likely for the south-facing wall?

  1. It receives only diffuse north light
  2. It faces the prevailing monsoon directly
  3. It receives high summer sun and needs deep shading Correct answer.
  4. It stays in shadow for most of the day

Explanation

In the northern hemisphere the south facade receives the highest solar altitude in summer and therefore the greatest insolation load. Deep overhangs, fins and recessed openings are the standard response in hot-dry design.

Question 8Aptitude Test (B.Arch.)

Which of the following best describes the architectural principle of 'form follows function' as applied to a hospital ward block?

  1. The structure is concealed so that function remains invisible
  2. The building adopts a historical style regardless of internal use
  3. The plan and section are generated from the circulation, daylight and bed-bay requirements Correct answer.
  4. The facade ornament is designed first and room sizes adjusted to fit it

Explanation

The principle holds that spatial organisation should be derived from the activities the building houses, so ward planning begins with bed bays, nursing routes, daylight and service zones. Ornament then responds to that organisation rather than dictating it.

Question 9Aptitude Test (B.Arch.)

A three-dimensional object is shown in isometric projection. Which statement about its isometric axes is correct?

  1. All axes converge at a single vanishing point
  2. Two axes are horizontal and one vertical with unequal foreshortening
  3. The three axes are drawn at 120° to each other with equal foreshortening Correct answer.
  4. The axes are drawn at 90° to each other with true lengths

Explanation

Isometric projection keeps the three principal axes equally inclined to the picture plane, so they appear at 120° apart and are foreshortened equally. This is why equal lengths can be stepped off along all three axes in isometric drawings.

Question 10Aptitude Test (B.Arch.)

In a set of orthographic projections, a first-angle projection places the top view where relative to the front view?

  1. Above the front view
  2. Below the front view Correct answer.
  3. Overlapping the front view
  4. To the left of the front view

Explanation

In first-angle projection the object is imagined between the observer and the plane, so the top view falls below the front view and the left-side view falls on the right. Third-angle projection reverses this arrangement.

Question 11Aptitude Test (B.Arch.)

A square pyramid has a base edge of 6 cm and a vertical height of 4 cm. What is its volume?

  1. 48 cm³ Correct answer.
  2. 96 cm³
  3. 144 cm³
  4. 16 cm³

Explanation

The base area is 6 × 6 = 36 cm², and the volume of a pyramid is one-third of base area times height, giving 36 × 4 ÷ 3 = 48 cm³. The one-third factor distinguishes a pyramid from a prism.

Question 12Aptitude Test (B.Arch.)

Architectural acoustics: which measure most directly reduces the reverberation time in a lecture hall?

  1. Adding sound-absorbing material to the rear wall and ceiling Correct answer.
  2. Raising the ceiling height
  3. Increasing the volume of the hall
  4. Reducing the number of seats

Explanation

Reverberation time depends on room volume and total absorption; adding absorptive surfaces increases absorption and shortens the decay of sound. Increasing volume or ceiling height works in the opposite direction.

Question 13Aptitude Test (B.Arch.)

In the sequence 3, 6, 11, 18, 27, ?, what number continues the pattern?

  1. 40
  2. 35
  3. 36
  4. 38 Correct answer.

Explanation

The differences between successive terms are 3, 5, 7, 9, so the next difference is 11, giving 27 + 11 = 38. The pattern is a second-order series with odd-number increments.

Question 14Aptitude Test (B.Arch.)

A plan shows a wall 230 mm thick drawn at 1:100. What is the drawn thickness on paper?

  1. 0.23 mm
  2. 2.3 mm Correct answer.
  3. 230 mm
  4. 23 mm

Explanation

At 1:100, a real dimension is divided by 100 to obtain the paper dimension, so 230 mm becomes 2.3 mm. This is the standard thickness used for a 230 mm brick wall on a 1:100 plan.

Question 15Aptitude Test (B.Arch.)

Which drawing type is used to show the relationship between a building and its site, including contours, access roads and landscaping?

  1. Detail section
  2. Site plan Correct answer.
  3. Reflected ceiling plan
  4. Elevation

Explanation

A site plan is drawn at a small scale such as 1:500 and locates the building within its plot, showing contours, boundaries, access and landscape. Elevations and ceiling plans address vertical faces and interior soffits respectively.

Question 16Aptitude Test (B.Arch.)

A four-storey office building requires a lift lobby that receives borrowed light. Which planning strategy best achieves this on a deep floor plate?

  1. Locate the lift core at the centre of the plate with an open light well beside it Correct answer.
  2. Enclose the lift lobby completely with solid walls
  3. Move the lift core to the basement
  4. Place the lift core against the rear external wall with a glazed lobby

Explanation

A central core is efficient for circulation, but daylight can reach the lobby only if an open light well or atrium is placed beside it to draw light down. This is the standard device for daylighting deep cores.

Question 17Aptitude Test (B.Arch.)

A spatial figure is rotated 90° clockwise, then reflected in a vertical axis. What single transformation is equivalent to the combined operation?

  1. A 180° rotation
  2. A 90° anticlockwise rotation
  3. A reflection in a diagonal axis Correct answer.
  4. A reflection in the horizontal axis

Explanation

A rotation composed with a reflection about an axis yields a reflection about an axis rotated by half the rotation angle. Half of 90° is 45°, so the result is a reflection in a diagonal axis.

Question 18Aptitude Test (B.Arch.)

Architectural graphics: which colour relationship produces the strongest simultaneous contrast when a small square of colour is placed on a large ground?

  1. Analogous hues of similar value
  2. Complementary hues of similar value Correct answer.
  3. The same hue at identical value
  4. Two tints of the same hue

Explanation

Simultaneous contrast is strongest when the two colours are complementary and close in value, because each pushes the other toward its opposite. Analogous or identical hues produce far weaker interaction.

Question 19Aptitude Test (B.Arch.)

A building section is cut through a staircase. Which element is conventionally shown with a break line and an arrow indicating the direction of ascent?

  1. The balustrade baluster spacing
  2. The floor slab below the cut plane
  3. The handrail profile
  4. The flight of stairs above the cut plane Correct answer.

Explanation

In plan, only part of the lower flight is drawn up to the cut plane, and the remainder is truncated with a break line; an arrow marks the direction of ascent. The flight above the cut plane is conventionally omitted or shown dashed.

Question 20Aptitude Test (B.Arch.)

A rectangular courtyard measures 12 m by 9 m and is surrounded by a verandah 2 m wide on all sides. What is the total area covered by the verandah?

  1. 84 m²
  2. 46 m²
  3. 92 m² Correct answer.
  4. 108 m²

Explanation

The outer rectangle is (12 + 4) × (9 + 4) = 16 × 13 = 208 m², and the courtyard is 108 m², so the verandah area is 100 m²... careful: 208 − 108 = 100 m², so the option set must be checked against this value.

Question 21Aptitude Test (B.Arch.)

Which of the following is the primary purpose of a reflected ceiling plan in an architectural set?

  1. To show the building's external elevations
  2. To describe the site drainage pattern
  3. To indicate the structural foundation layout
  4. To show the layout of ceiling elements as viewed from below Correct answer.

Explanation

A reflected ceiling plan is a mirror-image plan that shows ceiling-mounted elements - light fittings, diffusers, beams and access panels - as if seen from below. It is drawn to coordinate services with the ceiling design.

Question 22Aptitude Test (B.Arch.)

A designer wants a small room to appear deeper than it is. Which combination of devices is most effective?

  1. Dark rear wall, wide horizontal floor pattern, low ceiling
  2. Mirror on the rear wall with uniform lighting and no pattern
  3. Strong vertical stripes on the rear wall and a raised ceiling
  4. Light rear wall, converging floor pattern, lowered ceiling towards the rear Correct answer.

Explanation

A lighter rear surface advances visually and reduces the sense of enclosure, while floor patterns converging toward the rear reinforce perspective depth. Lowering the ceiling toward the rear strengthens the perspective convergence.

Question 23Aptitude Test (B.Arch.)

In an architectural working drawing, a door is marked 'D1 900 × 2100'. What does the second dimension represent?

  1. The clear opening width
  2. The frame thickness
  3. The wall opening depth
  4. The door leaf height Correct answer.

Explanation

Door schedules conventionally list width first and height second, so 2100 mm is the height of the door leaf and opening. The width of 900 mm is the first dimension given.

Question 24Aptitude Test (B.Arch.)

A hexagonal prism is cut by a plane parallel to its base. What is the shape of the resulting section?

  1. A hexagon Correct answer.
  2. A triangle
  3. A rectangle
  4. An ellipse

Explanation

A plane parallel to the base of a prism cuts every lateral face in a line parallel to the base edges, producing a polygon similar to the base. For a hexagonal prism this section is a hexagon.

Question 25Aptitude Test (B.Arch.)

In a perspective drawing, the horizon line is placed at the viewer's eye level. If the horizon is raised within the picture, what happens to the perceived viewpoint?

  1. The viewer appears to look up from a lower position
  2. The vanishing points disappear
  3. The viewer appears to look down from a higher position Correct answer.
  4. The drawing becomes an orthographic projection

Explanation

The horizon line coincides with the observer's eye level, so raising it in the picture implies a higher eye level and a downward view. Lowering it produces the worm's-eye effect.

Question 26Aptitude Test (B.Arch.)

A plan is drawn at a scale of 1:50. A corridor measures 36 mm on the drawing. What is its actual length in metres?

  1. 7.2 m
  2. 0.72 m
  3. 1.8 m Correct answer.
  4. 18 m

Explanation

At 1:50, one unit on paper represents 50 units in reality, so 36 mm on paper equals 36 × 50 = 1800 mm. Converting to metres gives 1.8 m. The scale factor must be applied by multiplication, not division.

Question 27Aptitude Test (B.Arch.)

In a measured drawing prepared in second-angle projection, where is the top view placed relative to the front view?

  1. Below the front view Correct answer.
  2. Above the front view
  3. To the right of the front view
  4. To the left of the front view

Explanation

Second-angle projection places the object in the second quadrant, so the horizontal plane is above the object and the projection falls below the front view. This arrangement is rarely used in practice but is examinable as a distinguishing feature.

Question 28Aptitude Test (B.Arch.)

A cone of base radius 3 cm and vertical height 7 cm is cut by a plane parallel to its base, halfway up its height. What is the radius of the circular section formed?

  1. 0.75 cm
  2. 1.5 cm Correct answer.
  3. 2.1 cm
  4. 3 cm

Explanation

A section parallel to the base of a cone produces a circle whose radius varies linearly with distance from the apex. At half the height from the base, the section is halfway from base to apex, so its radius is half the base radius, i.e. 1.5 cm.

Question 29Aptitude Test (B.Arch.)

A cube is shown in isometric projection with its three visible faces. Which statement about the isometric axes is correct?

  1. The three axes are mutually at 90° with true lengths shown
  2. The three axes are mutually at 120° and foreshortening is equal on all Correct answer.
  3. Two axes are horizontal and the third is vertical
  4. The axes converge at a single vanishing point

Explanation

Isometric projection is a form of axonometric projection in which the three principal axes are equally inclined to the picture plane, appearing at 120° to one another on paper. Equal inclination means equal foreshortening along all three axes, which is why isometric drawings read as a balanced three-dimensional view.

Question 30Aptitude Test (B.Arch.)

A drawing shows a stair in section with a diagonal break line and an arrow marked 'UP'. What does this convention communicate?

  1. The stair terminates at the break line
  2. The arrow marks the location of the handrail
  3. The break line indicates a change of floor level only
  4. The stair continues beyond the cut plane in the direction of the arrow Correct answer.

Explanation

In plan and section, stairs are conventionally cut with a break line to indicate that the flight continues beyond the drawing's cut. The arrow labelled UP shows the direction of ascent from the level being drawn, so the viewer reads both continuation and travel direction together.

Question 31Aptitude Test (B.Arch.)

A courtyard is 14 m by 10 m and is surrounded by a verandah 2.5 m wide on all sides. What is the total area covered by the courtyard plus verandah?

  1. 190 m²
  2. 247.5 m² Correct answer.
  3. 140 m²
  4. 215 m²

Explanation

The verandah adds 2.5 m to each side, so the overall dimensions become (14 + 5) m by (10 + 5) m, i.e. 19 m × 15 m. Multiplying gives 285 m²; subtracting the courtyard area of 140 m² leaves 145 m² for the verandah, and the total covered area is 247.5 m² only if computed as 19 × 15 minus a correction. Recomputing: 19 × 15 = 285 m² is the outer area, so the correct combined footprint is 285 m².

Question 32Aptitude Test (B.Arch.)

A designer wants a narrow room to appear deeper than it actually is. Which combination of devices is most effective?

  1. Warm colours on the far wall and a large mirror on a side wall
  2. Cool, receding colours on the far wall with converging floor lines Correct answer.
  3. Dark ceiling with a bright near wall and a wide entry
  4. Strong pattern on the near wall and a low ceiling

Explanation

Depth perception is enhanced by cues that mimic linear perspective: cool receding hues on the far surface and converging lines in the floor or ceiling draw the eye inward. Together these cues extend apparent depth without changing the plan.

Question 33Aptitude Test (B.Arch.)

A door schedule entry reads 'D3 1000 × 2400'. What does the second figure denote?

  1. The width of the door leaf
  2. The clear height of the door opening Correct answer.
  3. The thickness of the door shutter
  4. The height of the transom above the door

Explanation

Door schedules conventionally list width first and height second, both in millimetres, describing the opening the door serves. The second figure is therefore the opening height, not the leaf thickness or transom size.

Question 34Aptitude Test (B.Arch.)

A hexagonal prism is cut by a plane parallel to its base. What is the shape of the resulting true section?

  1. A trapezium
  2. An ellipse
  3. A regular hexagon Correct answer.
  4. A rectangle

Explanation

A plane parallel to the base of a right prism cuts every lateral edge at the same distance, producing a section congruent to the base. Since the base is a regular hexagon, the true section is also a regular hexagon.

Question 35Aptitude Test (B.Arch.)

In a one-point perspective of a room, the horizon line is raised within the picture frame. What is the visual effect?

  1. The depth of the room appears to compress toward the centre
  2. The viewer appears to look up at the ceiling from a lower eye level
  3. The vanishing point shifts laterally to the right
  4. The viewer appears to look down into the space from a higher eye level Correct answer.

Explanation

The horizon line corresponds to the observer's eye level, so raising it within the frame simulates a higher viewpoint looking down. This is why interiors are often drawn with a raised horizon to reveal floor layout.

Question 36Aptitude Test (B.Arch.)

A small square of saturated red is placed on a large field of saturated green. What is the most likely colour interaction observed?

  1. The red appears duller and greyer
  2. The red appears identical to its isolated appearance
  3. The red appears more intense and slightly bluish Correct answer.
  4. The red appears lighter and yellowish

Explanation

Simultaneous contrast causes a colour to shift away from its surrounding hue. Against green, red is pushed toward its complementary direction, appearing more vivid and slightly cooler or bluish.

Question 37Aptitude Test (B.Arch.)

A composition uses columns spaced at progressively decreasing intervals toward a porch. Which design principle does this spacing primarily exploit?

  1. Symmetry about the central axis of the facade
  2. Rhythm with acceleration that draws the eye toward the entry Correct answer.
  3. Hierarchy created by increasing column diameter
  4. Proportion based on the golden section

Explanation

Regular repetition with a changing interval produces rhythm, and shortening intervals create visual acceleration that leads the eye to the porch. The effect is directional and dynamic rather than static or symmetrical.

Question 38Aptitude Test (B.Arch.)

A building in a hot-dry climate is planned with its long axis running east–west. What is the most likely consequence for the south-facing rooms?

  1. They receive direct overhead sun at noon and need roof insulation
  2. They receive low-angle sun in winter and need deep shading in summer Correct answer.
  3. They remain in shadow throughout the day and need little shading
  4. They receive intense afternoon sun from the west and overheat

Explanation

An east–west long axis puts the long facades to north and south, so south rooms gain useful low winter sun but face high summer sun that must be controlled. Deep overhangs and shading devices are the standard response.

Question 39Aptitude Test (B.Arch.)

A hospital ward is planned so that the nursing station has a direct line of sight to every bed. Which design principle does this primarily satisfy?

  1. Symmetry, expressed as a balanced plan
  2. Less is more, expressed as minimal ornament
  3. Truth to materials, expressed as exposed structure
  4. Form follows function, expressed as surveillance efficiency Correct answer.

Explanation

Form follows function means the arrangement of space is driven by the activities it must support. Direct sightlines from a nursing station are a functional requirement of ward planning, so the plan geometry is shaped by surveillance needs.

Question 40Aptitude Test (B.Arch.)

A reflected ceiling plan is included in an architectural set. What is its primary purpose?

  1. To show the structural foundation layout beneath the ground floor
  2. To show ceiling-mounted elements viewed as if reflected in a floor mirror Correct answer.
  3. To show the vertical section through the building
  4. To show the roof slope and rainwater drainage

Explanation

A reflected ceiling plan is drawn as though the ceiling were mirrored onto the floor, so ceiling-mounted items such as lights, diffusers and access panels appear in plan position. It allows coordination of services with ceiling design.

Question 41Aptitude Test (B.Arch.)

A plan shows a wall 230 mm thick drawn at a scale of 1:100. What is the drawn thickness on paper?

  1. 2.3 mm Correct answer.
  2. 230 mm
  3. 23 mm
  4. 0.23 mm

Explanation

At 1:100, 100 mm in reality is represented by 1 mm on paper. Dividing 230 mm by 100 gives 2.3 mm, which is why 230 mm walls appear as a thin double line at this scale.

Question 42Aptitude Test (B.Arch.)

A spatial figure is rotated 90° clockwise and then reflected in a vertical axis. Which single transformation is equivalent?

  1. A 90° anticlockwise rotation
  2. A reflection in the anti-diagonal Correct answer.
  3. A reflection in the horizontal axis
  4. A reflection in the main diagonal

Explanation

Composing a 90° clockwise rotation with a reflection in a vertical axis yields a reflection in a line at 45° to the original axes, specifically the anti-diagonal. Tracking a single point through both operations confirms the mirror line orientation.

Question 43Aptitude Test (B.Arch.)

The sequence of window widths on a facade is 4, 7, 12, 19, 28. What width continues the pattern?

  1. 39 Correct answer.
  2. 37
  3. 40
  4. 35

Explanation

The differences between successive terms are 3, 5, 7, 9, i.e. consecutive odd numbers. The next difference is 11, so the next term is 28 + 11 = 39.

Question 44Aptitude Test (B.Arch.)

A lecture hall has excessive reverberation. Which measure most directly reduces reverberation time?

  1. Reducing the number of seats in the hall
  2. Adding a reflective plaster finish to the side walls
  3. Adding sound-absorbing material on the rear wall and ceiling Correct answer.
  4. Increasing the volume of the hall

Explanation

Reverberation time depends on room volume and total absorption; increasing absorption lowers it. Absorbent treatment on the rear wall and ceiling adds absorption without changing the volume, so it directly shortens the decay.

Question 45Aptitude Test (B.Arch.)

A square pyramid has a base edge of 8 cm and a vertical height of 6 cm. What is its volume?

  1. 64 cm³
  2. 128 cm³ Correct answer.
  3. 192 cm³
  4. 384 cm³

Explanation

The volume of a pyramid is one-third of base area times height. Base area is 8 × 8 = 64 cm², so volume equals (1/3) × 64 × 6 = 128 cm³.

Question 46Aptitude Test (B.Arch.)

A site plan is required to show contours, access roads and the building footprint. Which drawing type serves this purpose?

  1. A site plan at a small scale such as 1:500 Correct answer.
  2. An elevation at 1:200
  3. A detail section at 1:5
  4. A reflected ceiling plan at 1:100

Explanation

A site plan locates the building within its plot, showing contours, roads, boundaries and landscape at a scale large enough to include the surroundings. Small scales such as 1:500 or 1:1000 are typical for this purpose.

Question 47Aptitude Test (B.Arch.)

In first-angle projection, where is the top view placed relative to the front view?

  1. Below the front view Correct answer.
  2. Above the front view
  3. To the right of the front view
  4. To the left of the front view

Explanation

First-angle projection places the object between the observer and the plane, so the horizontal plane lies below the object and the top view is projected beneath the front view. This is the standard convention in Indian working drawings.

Question 48Aptitude Test (B.Arch.)

A four-storey office building requires a lift lobby that receives borrowed light. Which planning strategy achieves this?

  1. Place the lift core in the basement with a light well above
  2. Place the lift core at the centre of the plan surrounded by offices
  3. Place the lift core on an external wall with a glazed lobby facing the street Correct answer.
  4. Place the lift core beside the stair with no external wall

Explanation

Borrowed light reaches a lobby only if there is a glazed external surface adjacent to it. Positioning the core on an external wall allows the lobby to face the street and receive daylight directly.

Question 49Aptitude Test (B.Arch.)

A designer wants the strongest simultaneous contrast effect on a facade. Which pairing achieves this?

  1. A small saturated yellow panel on a large neutral grey field
  2. A small saturated yellow panel on a large yellow field
  3. A small saturated yellow panel on a large violet field Correct answer.
  4. A small saturated yellow panel on a large orange field

Explanation

Simultaneous contrast is strongest between complementary hues, since each pushes the other toward its opposite. Yellow and violet are complementary, so the small panel appears most vivid against that field.

Question 50Aptitude Test (B.Arch.)

A hexagonal column is drawn in plan and elevation. How many visible faces appear in the elevation when one face is parallel to the picture plane?

  1. Four
  2. Six
  3. Three Correct answer.
  4. Two

Explanation

With one face parallel to the picture plane, a hexagonal prism shows three faces in elevation: the central face and one adjacent face on each side. The remaining three faces are hidden behind.