DESIGN OF MASONRY STRUCTURES QUIZ

Consider the following statements:A high lime content in a composite cement-lime mortar results in1. Slow hardening.2. Quick setting.3. Weaker mortar.

1 and 2 are correct

1, 2 and 3 are correct

1 and 3 are correct

2 and 3 are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

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

0.125 MPa

0.15 MPa

0.075 MPa

0.1 MPa

TRUE ANSWER : ?
YOUR ANSWER : ?

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

0.75

0.85

0.6

0.95

TRUE ANSWER : ?
YOUR ANSWER : ?

Full restraint is provided by(i) Foundation footing of a wall(ii) Timber floor spanning on the wall and anchored to the wall(iii) RCC slab with a minimum bearing of 10 cm on the wall

(i) and (iii) are correct

(ii) and (iii) are correct

(i), (ii) and (iii) are correct

(i) and (ii) are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

Cement mortars richer than 1 : 3 are not used in masonry because(i) There is no gain in strength of masonry(ii) There is high shrinkage(iii) They are prone to segregation

(ii) and (iii) are correct

(i) and (ii) are correct

(i), (ii) and (iii) are correct

Only (ii) is correct

TRUE ANSWER : ?
YOUR ANSWER : ?

Consider the following statements regarding provision of chases in masonry,(i) No chase should be permitted in a half brick load-bearing wall,(ii) Vertical chases should not be closer than 2 m in any stretch of a wall,(iii) Chases should be provided near to bearings of beams and lintels.

(i) and (iii) are correct

(i) and (ii) are correct

(ii) and (iii) are correct

(i), (ii) and (iii) are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

In the case of panel wall subjected to horizontal loads at right angles to the plane of the wall, with the mortar not leaner than Ml type, tensile stress in bending in the vertical direction may be allowed to the extent of

0.7 kg/cm²

0.4 kg/cm²

1.0 kg/cm²

1.2 kg/cm²

TRUE ANSWER : ?
YOUR ANSWER : ?

Consider the following statements regarding bands to be provided for strengthening masonry work in masonry buildings constructed in zone III, IV and V.<br/>(i) Lintel band is provided at lintel level on partition walls,<br/>(ii) Gable band is provided at top of gable masonry below the purlins,<br/>(iii) The bands shall be to full width of the wall and not less than 7.5 cm in depth,<br/>(iv) The bands shall be made of reinforced concrete only.<br/>of these statements, the correct statements are

(i) and (iii)

(ii) and (iv)

(i) and (ii)

(ii) and (iii)

TRUE ANSWER : ?
YOUR ANSWER : ?

Consider the following statements regarding bands to be provided for strengthening masonry work in masonry buildings constructed in zone III, IV and V. (i) Lintel band is provided at lintel level on partition walls, (ii) Gable band is provided at top of gable masonry below the purlins, (iii) The bands shall be to full width of the wall and not less than 7.5 cm in depth, (iv) The bands shall be made of reinforced concrete only.of these statements, the correct statements are

(ii) and (iv)

(i) and (iii)

(ii) and (iii)

(i) and (ii)

TRUE ANSWER : ?
YOUR ANSWER : ?

In a cavity wall, both leaves of which are load bearing, the effective thickness is taken as

Actual thickness of the stronger leaf

Two-third of the sum of thickness of both the leaves

Larger of (B) and (C)

Sum of thickness of both leaves

TRUE ANSWER : ?
YOUR ANSWER : ?

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