D54 CHECK YOUR LEVEL

Which RCC member is primarily designed to resist bending moments?

• Column
• Beam
• Footing
• Slab

Answer explanation

Beams are subjected to bending moment and shear force; hence designed for bending.

The diameter of rivet hole for a 16 mm rivet as per IS specifications is:

• 16 mm
• 17 mm
• 18 mm
• 19 mm

Answer explanation

Rivet holes are typically 1.5 to 2 mm larger than nominal diameter; hence 18 mm.

In a one-way slab, the minimum reinforcement using HYSD bars should not be less than:

• 0.10%
• 0.12%
• 0.15%
• 0.20%

Answer explanation

For HYSD bars, IS 456:2000 recommends minimum 0.12% reinforcement in slab.

Which AutoCAD command is used to remove objects from a drawing?

• TRIM
• ERASE
• DELETE
• REMOVE

Answer explanation

The ERASE command deletes selected objects from the AutoCAD drawing.

Which instrument is used in plane tabling for measuring elevation difference?

• Pantagraph
• Hand Level
• Tangent Clinometer
• Sextant

Answer explanation

Tangent Clinometer is commonly used for elevation measurement during plane tabling.

What is the typical water-cement ratio for achieving maximum strength in RCC?

• 0.85
• 0.6
• 0.5
• 0.3

Answer explanation

A water-cement ratio of 0.5 is commonly used for optimum strength in RCC.

Which road alignment principle ensures least excavation and embankment?

• Shortest path
• Straight alignment
• Minimum cost
• Balance of cut and fill

Answer explanation

Balancing cutting and filling minimizes earthwork cost and effort.

Which tool in AutoCAD is used to draw concentric circles?

• OFFSET
• CIRCLE
• COPY
• MIRROR

Answer explanation

OFFSET creates concentric circles or parallel lines.

Which survey instrument is used for accurate centering and angle measurement?

• Auto Level
• Prism
• Theodolite
• Plumb bob

Answer explanation

Theodolite is used for precise horizontal and vertical angle measurement.

Which AutoCAD command is used to combine two intersecting objects into one?

• JOIN
• TRIM
• INTERSECT
• UNION

Answer explanation

UNION merges two solids or regions into a single object.