D53 FACE THE CHALLENGE

Assertion (A): Theodolite is more accurate than a compass in measuring angles. Reason (R): Theodolite can measure both horizontal and vertical angles precisely.

• Both A and R are true, and R is the correct explanation of A
• Both A and R are true, but R is not the correct explanation of A
• A is true, but R is false
• A is false, but R is true

Answer explanation

Theodolite measures both horizontal and vertical angles with high precision, unlike a compass.

Which instrument is used to transfer ground details directly onto a drawing sheet?

• Theodolite
• Dumpy Level
• Plane Table
• Clinometer

Answer explanation

Plane table surveying allows direct plotting of details on the sheet.

Which curve is provided in road design to connect straight and circular paths?

• Simple curve
• Transition curve
• Reverse curve
• Compound curve

Answer explanation

Transition curves provide gradual change in direction for safety and comfort.

Which RCC member generally resists flexure and shear together?

• Column
• Beam
• Footing
• Wall

Answer explanation

Beams are designed primarily for bending and also resist shear forces.

Which AutoCAD command helps reduce drawing clutter by hiding unwanted lines?

• LAYER OFF
• DELETE
• HIDE
• LAYISO

Answer explanation

LAYISO isolates selected layers and hides all others temporarily.

What is the main purpose of super elevation in roads?

• Drainage improvement
• Reduce gradient
• Prevent skidding
• Increase visibility

Answer explanation

Super elevation counters centrifugal force and prevents skidding on curves.

Which part of a survey instrument helps in leveling the device accurately?

• Tripod head
• Telescope
• Foot screws
• Vertical circle

Answer explanation

Foot screws are adjusted to ensure the instrument is level.

Which RCC element carries load from the beam to the footing?

• Column
• Slab
• Lintel
• Wall

Answer explanation

Columns transfer loads from beams and slabs to the footing.

Which AutoCAD feature helps create sloped lines between objects?

• SLOPE
• DRAFT
• DIMLINEAR
• LINE

Answer explanation

LINE command can be used with coordinates to draw sloped lines.

What is the angle between two legs of a 45-degree set square?

• 30°
• 45°
• 60°
• 90°

Answer explanation

A 45° set square includes 45°, 45°, and 90° angles.