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Q1. | Rich cement mortars are more liable to cracking as compared to lean mortars because rich mortars have |

A. | high shrinkage [Correct Answer] |

B. | less strength [Wrong Answer] |

C. | both (a) and (b) [Wrong Answer] |

D. | none of above [Wrong Answer] |

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Explanation:-
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**Also Read Similar Questions Below :**

⇒ The degree of static indeterminacy up to which column analogy method can be used is

2

3

4

unrestricted

⇒ Bending moment at any section in a conjugate beam gives in the actual beam

slope

curvature

deflection

bending moment

⇒ The fixed support in a real beam becomes in the conjugate beam a

roller support

hinged support

fixed support

free end

⇒ The moment distribution method in structural analysis can be treated as

Force method

Displacement method

Flexibility method

None of these

⇒ Independent displacement components at each joint of a rigid-jointed plane frame are

three linear movements

two linear movements and one rotation

one linear movement and two rotations

three rotations

⇒ When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that

the head of the load reaches the section

the tail of the load reaches the section

the load position should be such that the section divides it equally on both sides

the load position should be such that the section divides the load in the same ratio as it divides the span

⇒ A load 'W is moving from left to right support on a simply supported beam of span T. The maximum bending moment at 0.4 1 from the left support is

0.16 Wl

0.20 Wl

0.24 Wl

0.25 Wl

⇒ Which of the following methods of structural analysis is a force method ?

slope deflection method

column analogy method

moment distribution method

none of the above

⇒ The carryover factor in a prismatic member whose far end is fixed is

0

1/2

3/4

1

⇒ The width of the analogous column in the method of column analogy is

2/EI

1/EI

1/2 EI

1/4 EI

⇒ The moment area theorems in the structural analysis fall in the category of

Force method

Displacement method

Stiffness method

Iterative method

⇒ Unequal settlements in the supports of a statically indeterminate structure develop

Member forces

Reactions from supports

No reactions

Strains in some members only

⇒ The Castigliano's second theorem can be used to compute deflections

in statically determinate structures only

for any type of structure

at the point under the load only

for beams and frames only

⇒ 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

0.15 MPa

0.125 MPa

0.1 MPa

0.075 MPa

⇒ The horizontal thrust due to rise in temperature in a semicircular two-hinged arch of radius R is proportional to

R

R

^{2}

1/R

1/R

^{2}

⇒ Maxwell's reciprocal theorem in structural analysis can be applied in

All elastic structures

Plastic structures

Symmetrical structures only

Prismatic element structures only

⇒ The mode of failure of a very short masonry member having h/t ratio of less than 4 is by

shear

vertical tensile splitting

buckling

any of the above

⇒ The principle of virtual work can be applied to elastic system by considering the virtual work of

internal forces only

external forces only

internal as well as external forces

none of the above

⇒ The torsional stiffness of a member can be defined as

Torque for unit moment

Torque for unit twist

Moment for unit twist

Torsion for unit twist

⇒ When a uniformly distributed load, longer than the span of the girder, moves from left to right, then the maximum bending moment at mid section of span occurs when the uniformly distributed load occupies

less than the left half span

whole of left half span

more than the left half span

whole span

⇒ 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?

providing buttresses at certain intervals

providing a deeper foundation

using a richer mortar

using stronger bricks

⇒ The basic stress in masonry units having height to width ratio of 1.5 may be increased by a factor of

1.2

1.4

1.6

2.0

⇒ 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

0.4 kg/cm2

0.7 kg/cm2

1.0 kg/cm2

1.2 kg/cm2

⇒ The timber floor not spanning on the masonry wall but properly anchored to the wall gives

lateral restraint but not rotational restraint

rotational restraint but not lateral restraint

both lateral and rotational restraints

neither lateral nor rotational restraint

⇒ Number of unknown internal forces in each member of a rigid jointed plane frame is

1

2

3

6

⇒ In the displacement method of structural analysis, the basic unknowns are

displacements

force

displacements and forces

none of the above

⇒ The number of independent equations to be satisfied for static equilibrium in a space structure is

2

3

4

6

⇒ The deflection at any point of a perfect frame can be obtained by applying a unit load at the joint in

vertical direction

horizontal direction

inclined direction

the direction in which the deflection is required

⇒ Minimum compressive strength in N/mm2 for H1 type mortar used for masonry is

3

5

7.5

10

⇒ The thickness of each leaf of a cavity wall shall not be less than

5 cm

7.5 cm

10 cm

15 cm