Question: The basic stress in masonry units having height to width ratio of 1.5 may be increased by a factor of_________________?

• 1. 1.2
• 2. 1.4
• 3. 1.6
• 4. 2.0

Question: For strengthening a 50 m long and 5 m high straight compound wall built in brick work, which one of the following would be most suitable?

• 1. providing buttresses at certain intervals
• 2. providing a deeper foundation
• 3. using a richer mortar
• 4. using stronger bricks

Question: For masonry built in 1:1:6 cement-lime-sand mix mortar or equivalent, the horizontal shear stress permissible on the area of a mortar bed joint is_______________?

• 1. 0.15 MPa
• 2. 0.125 MPa
• 3. 0.1 MPa
• 4. 0.075 MPa

Question: Rich cement mortars are more liable to cracking as compared to lean mortars because rich mortars have________________?

• 1. high shrinkage
• 2. less strength
• 3. both (A) and (B)
• 4. none of above

Question: Water retentivity for brick masonry should not be less than__________________?

• 1. 50%
• 2. 60%
• 3. 70%
• 4. 80%

Question: For earthquake resistant masonry buildings, where seismic coefficient is less than 0.08, the horizontal distance between two openings shall not be less than_________________?

• 1. Vt x height of shorter opening
• 2. Vt x height of longer opening
• 3. Ax height of shorter opening
• 4. Vi x height of longer opening

Question: Minimum thickness of stiffening wall for 1 to 3 storeys shall not be less than_______________?

• 1. 10 cm
• 2. 15 cm
• 3. 20 cm
• 4. 30 cm

Question: For designing masonry components of a structure, seismic forces provision in the design calculation is not necessary for buildings constructed in________________?

• 1. Zone I only
• 2. Zone I and II
• 3. Zone I, II and III
• 4. Zone I, II, III and IV

Question: The bending stress in a wall or column subjected to effective vertical load need not be considered, if the eccentricity ratio is_________________?

• 1. less than or equal to 1/24
• 2. less than or equal to 1/6
• 3. more than 1/24
• 4. less than or equal to 1/12

Question: If the horizontal cross-sectional area of a wall is 1200 cm2, then the basic stress shall be multiplied by a reduction factor equal to________________?

• 1. 0 6
• 2. 0.75
• 3. 0.85
• 4. 0.95