MHADA Exam TOP 100 Technical Imp Question MCQ Mock Test 47

1➤ Castigliano’s first theorem is applicable

for statically determinate structures onlyonly when principle of superposition is validwhen the system behaves elasticallynone of the above

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

Slope deflection methodColumn analogy methodMoment distribution methodNone of the above

3➤ Principle of superposition is applicable when

Deflections are linear functions of applied forcesThe action of applied forces will be affected by small deformations of the structureMaterial obeys Hooke's lawNone of the above

4➤ The effective and actual lengths of a cantilever are same if continuous at the support,

Unstrained against torsion at the support and free at the endWith partial restraint against torsion of the support and free at the endRestrained against torsion at the support and free at the endNone of these

5➤ 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 spanWhole of left half spanMore than the left half spanWhole span

6➤ For a single point load W moving on a symmetrical three hinged parabolic arch of span L, the maximum sagging moment occurs at a distance x from ends. The value of x is

0.211 L0.25 L0.234 L0.5 L

7➤ If in a rigid-jointed space frame, (6m + r) < 6j, then the frame is

Stable and statically determinateUnstableStable and statically indeterminateNone of the above

8➤ In column analogy method, the area of an analogous column for a fixed beam of span L and flexural rigidity El is taken as

L/EIL/2EIL/4EIL/3EI

9➤ For under water concreting.

The volume of coarse aggregates shall not be less than one and half times and not more than twice that of fine aggregateAt least 10 percent more cement is required as compared to dry conditionsDe-watering by pumping is not done or until 24 hours thereafterAll the above

10➤ In moment distribution method, the sum of distribution factors of all the members meeting at any joint is always

zero1greater than 1less than 1

11➤ The weight of reinforced concrete, is generally taken as

2300 kg/m³2400 kg/m³2500 kg/m³2200 kg/m³

12➤ A pre-cast pile generally used, is

SquareOctagonalCircularSquare with corners chamfered

13➤ If d is the diameter of a bar, ft is allowable tensile stress and fb, is allowable bond stress, the bond length is given by

ft .d/4fb(π/4). (ft .d/fb)π ft .d²/fb(π/4). (ft .d3/fb)

14➤ As per IS : 1343, total shrinkage for a pre-tensioned beam, is

3.0 × 10⁻²3.0 × 10⁻⁵3.0 × 10⁻³3.5 × 10⁻⁵

15➤ The section of a reinforced beam where most distant concrete fibre in compression and tension in steel attains permissible stresses simultaneously, is called

Balanced sectionCritical sectionEconomic sectionAll the above

16➤ Based on punching shear consideration, the overall depth of a combined footing under a column A, is

(Area of the column A × Safe punching stress)/Load on column A(Perimeter of column A × Safe punching stress)/(Load on column A + Upward pressure × Area of the column)(Perimeter of column A × Safe punching stress)/(Load on column A × Upward pressure × Area of the column)None of these

17➤ According to load factor method, the permissible load ‘W’ on a short column reinforced with longitudinal bars and lateral stirrups, is

Stress in concrete × area of concreteStress in steel × area of steelStress in concrete × area of concrete + Stress in steel × area of steelNone of these

18➤ High strength concrete is used in pre-stressed member

To overcome high bearing stresses developed at the endsTo provide high bond stressesTo overcome bursting stresses at the endsAll the above

19➤ Design of R.C.C. cantilever beams, is based on the resultant force at

Free endFixed endMid spanMid span and fixed support

20➤ The diameter of longitudinal bars of a column should never be less than

8 mm10 mm12 mm6 mm

21➤ If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of rivets in tension will be taken as

120 mm160 mm200 mm300 mm

22➤ The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is

1.0 mm1.5 mm2.0 mm2.5 mm

23➤ The slenderness ratio of a column supported throughout its length by a masonry wall is

zero10100infinity

24➤ The external wind pressure acting on a roof depends on

degree of permeability of roofslope of roofboth (a) and (b)none of the above

25➤ If the loaded length of span in meters of a railway steel bridge carrying a single track is 6 m, then impact factor is taken as

00.5between 0.5 and 1.01.0

26➤ Minimum pitch provided in riveted steel tanks is (where d is diameter of rivets)

1.5 d2.5 d2.0 d3.0 d

27➤ The allowable tensile stress in structural mild steel plates for steel tank is assumed as

95.0 MPa on net area105.5 MPa on gross area105.5 MPa on net area150.0 MPa on gross area

28➤ Other conditions being same, the load factor in indeterminate structures is

Equal to load factor in determinate structuresLess than the load factor in determinate structuresMore than the load factor in determinate structuresUnpredictable

29➤ In case of timber structures, the simple bending formula M = fz may be applied for

all rectangular beamsrectangular beams up to 300 mm depthsolid circular beams onlyall square cross-section beams

30➤ As per IS : 875, for the purposes of specifying basic wind velocity, the country has been divided into

4 zones5 zones6 zones7 zones

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