D71 CHECK YOUR LEVEL

Which method increases the bearing power of soil by removing excess water?

• Grouting
• Drainage
• Compaction
• Chemical treatment

Answer explanation

Drainage removes excess water, improving shearing strength and increasing bearing power.

In oblique drawings, lines along the receding axis drawn to half of true length are called:

• Cavalier projection
• Cabinet projection
• Isometric projection
• Perspective projection

Answer explanation

In cabinet projection, receding lines are drawn to half the true length (1:2 ratio).

Which type of projection makes the object look less distorted, cavalier or cabinet?

• Cavalier
• Cabinet
• Both equally
• Neither

Answer explanation

Cabinet projection looks less distorted compared to cavalier projection.

Which test determines the toughness of stone?

• Crushing test
• Impact test
• Attrition test
• Smith’s test

Answer explanation

Impact test determines the toughness of stone.

Which instrument is used for drawing irregular curves?

• Compass
• French curves
• Flexible curve
• Protractor

Answer explanation

French curves are used for drawing irregular curves that are neither circular arcs nor straight lines.

Flexible curves are made of lead bar enclosed in:

• Plastic
• Rubber
• Wood
• Metal

Answer explanation

Flexible curves are made of lead bar enclosed in rubber, allowing them to bend into desired shapes.

Columns with lengths more than 30 times their diameter are classified as:

• Short columns
• Medium columns
• Long columns
• None

Answer explanation

Columns with length more than 30 times diameter are called long columns.

What is the minimum diameter for main vertical bars in columns?

• 8 mm
• 10 mm
• 12 mm
• 16 mm

Answer explanation

The minimum diameter for main vertical bars in columns is 12 mm.

Live loads in building design refer to:

• Permanent structural weight
• Weight of occupants and movable items
• Wind and seismic forces
• Foundation loads

Answer explanation

Live loads are loads from occupants, furniture, and other movable items in a building.

In portal frames, hinged connection results in:

• No bending moment at the base
• High bending moment at the base
• Fixed base condition
• Semi-rigid joint

Answer explanation

Hinged connections have zero bending moment at the base, allowing rotation.