D62 CHECK YOUR LEVEL

In brick masonry, which type of bond is the strongest and most suitable for load-bearing walls?

• English bond
• Flemish bond
• Header bond
• Rat trap bond

Answer explanation

English bond provides maximum strength due to alternate headers and stretchers.

The rise and going of a step in a staircase must conform to which standard rule for comfort and safety?

• 2R + G = 500 mm
• 2R + G = 600 mm
• R + 2G = 600 mm
• R + G = 300 mm

Answer explanation

2R + G = 600 mm is the ergonomic rule for rise and going of steps.

Which method is most accurate for setting out right angles during building construction?

• Cross-staff method
• 3-4-5 Method
• Offset method
• Reciprocal method

Answer explanation

3-4-5 method gives accurate right angle layout in site work.

What is the main reason for providing 'through stones' in random rubble masonry?

• Improve aesthetics
• Bonding of masonry
• Prevent seepage
• Provide grip for mortar

Answer explanation

Through stones bond the two wall faces improving strength.

The diagonals in scaffolding used for lateral stability are called:

• Braces
• Ledgers
• Putlogs
• Standards

Answer explanation

Braces provide diagonal stability to scaffolding.

Which of the following is a common defect caused during seasoning of timber due to rapid drying?

• Rind galls
• Twisting
• Bowing
• Shakes

Answer explanation

Rind galls are outgrowths caused by drying stresses.

A 'frog' in a brick is provided to:

• Increase weight
• Provide bond
• Assist in stacking
• Drain water

Answer explanation

Frog holds mortar and helps better adhesion.

What type of foundation is recommended for black cotton soil?

• Raft foundation
• Grillage foundation
• Strip footing
• Well foundation

Answer explanation

Raft distributes loads and handles expansive soil movement.

Which bond uses headers and stretchers alternatively in the same course?

• Stretcher bond
• English bond
• Header bond
• Flemish bond

Answer explanation

Flemish bond has headers and stretchers in each course.

What tool is primarily used for transferring angles from plans to the site?

• Dumpy level
• Plumb bob
• Protractor
• Set square

Answer explanation

Protractor is used to transfer angles during field layout.