D44 CHECK YOUR LEVEL

A line inclined to both HP and VP appears foreshortened in:

• Plan only
• Elevation only
• Both plan and elevation
• Neither

Answer explanation

When inclined to both planes, the true length isn't seen in either view.

The minimum spacing between two dimension lines should be:

• 6 mm
• 8 mm
• 10 mm
• 12 mm

Answer explanation

Standard dimensioning practice recommends 10 mm spacing.

For a double Flemish bond, the number of headers in a 1 m length wall is approximately:

• 4
• 6
• 8
• 10

Answer explanation

In a 230 mm thick wall, approx. 8 headers fit in a 1 m span.

Which bond provides both strength and aesthetics in a 1½ brick wall?

• Stretcher
• Header
• English
• Zigzag

Answer explanation

English bond is ideal for strength and visual balance.

Which AutoCAD command converts objects into a single compound object?

• JOIN
• GROUP
• BLOCK
• POLYLINE

Answer explanation

POLYLINE merges line segments into one entity.

In doubly reinforced sections, the area of compression steel is provided to:

• Increase shear resistance
• Reduce moment
• Prevent crushing of concrete
• Enhance ductility

Answer explanation

Compression steel improves ductility and controls deflection.

What is the maximum area of tension reinforcement in beams as per IS 456?

• 2%
• 2.5%
• 4%
• 6%

Answer explanation

The limit is 4% of the cross-sectional area of the beam.

The hydraulic gradient in an earthen dam should not intersect the:

• Crest
• Toe
• Phreatic line
• Downstream slope

Answer explanation

If it intersects the toe, it may cause piping or failure.

Most suitable dam type for alluvial foundations is:

• Arch dam
• Gravity dam
• Buttress dam
• Earthen dam

Answer explanation

Earthen dams can be built on weaker foundations with proper design.

Afflux is the result of:

• Expansion of stream
• Contraction at bridge
• Weir effect
• Change in flow direction

Answer explanation

Contraction causes water level to rise upstream - called afflux.