MHADA Exam Technical 100+ MCQ Question Mock Test 46

1➤ The forces in the members of simple trusses, may be analysed by

Graphical methodMethod of sectionsMethod of jointsAll the above

2➤ The moment of inertia of a triangular section (height h, base b) about its base, is

bh²/12bh³/12b²h/12b³h/12

3➤ Maximum shear stress theory for the failure of a material at the elastic limit, is known

Guest's or Trecas' theorySt. Venant's theoryRankine's theoryHaig's theory

4➤ Total strain energy theory for the failure of a material at elastic limit, is known

St. Venant's theoryRankine's theoryHaig's theoryGuest's or Trecas' theory

5➤ Maximum principal stress theory for the failure of a material at elastic point, is known

Guest's or Trecas' theoryRankine's theoryVon Mises' theorySt. Venant's theory

6➤ The locus of reaction of a two hinged semi-circular arch, is

Straight lineCircleParabolaHyperbola

7➤ The ratio of maximum shear stress to average shear stress of a circular beam, is

2/33/43/24/3

8➤ P = 4π² EI/L² is the equation of Euler's crippling load if

Both the ends are fixedBoth the ends are hingedOne end is fixed and other end is freeOne end is fixed and other end is hinged

9➤ The shape factor of standard rolled beam section varies from

1.10 to 1.201.30 to 1.401.40 to 1.501.20 to 1.30

10➤ In plastic analysis, the shape factor for a circular section, is

1.51.61.71.75

11➤ A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the joist will be,

10 m16 m14 m12 m

12➤ The stiffness of the close coil helical spring is

d4N/8D3n4D3N/d4nd4N/4D3n8D3N/d4n

13➤ Pick up the correct statement from the following:

In a loaded beam, the moment at which the first yield occurs is called yield momentIn a fully plastic stage of the beam, the neutral axis divides the section in two sections of equal areaIn a loaded beam, the moment at which the entire section of the beam becomes fully plastic, is called plastic momentAll the above

14➤ Maximum strain theory for the failure of a material at the elastic limit, is known as

Guest's or Trecas' theorySt. Venant's theoryRankine's theoryHaig's theory

15➤ A body is said to be in equilibrium if

It moves horizontallyIt rotates about its C.G.It moves verticallyNone of these

16➤ A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is

4WD²n/d4N4W²D3n/d4N4W²Dn/d4N4W²D3n²/d4N

17➤ A two hinged parabolic arch of span l and rise h carries a load varying from zero at the left end to ? per unit run at the right end. The horizontal thrust is

ωl²/4hωl²/12hωl²/8hωl²/16h

18➤ The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is

WL²/2EIWL3/2EIWL²/3EIWL3/3EI

19➤ The ratio of moments of inertia of a triangular section about its base and about a centroidal axis parallel to its base, is

1.02.03.01.5

20➤ Inertia of a rectangular section of width and depth about an axis passing the moment of through C.G. and parallel to its width is

BD²/6BD³/12BD³/6B²D/6

21➤ The degree of static indeterminacy of a pin-jointed space frame is given by (where m is number of unknown member forces, r is unknown reaction components and j is number of joints)

m + r – 2j3m + r – 3jm + r – 3jm + r + 3j

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

234unrestricted

23➤ When a load crosses a through type Pratt truss in the direction left to right, the nature of force in any diagonal member in the left half of the span would

Change from compression to tensionAlways be compressionAlways be tensionChange from tension to compression

24➤ Pick up the incorrect statement from the following:

The gross section of the web of rolled I-beams is the depth of the beam multiplied by the web thicknessThe gross section of the web of plate girders is the depth of the web plate multiplied by its thicknessThe gross section of the web of channels is the depth of the web multiplied by its thicknessNone of these

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

2346

26➤ Which of the following is not the displacement method?

Equilibrium methodMoment distribution methodColumn analogy methodKani's method

27➤ Which of the following methods of structural analysis is a displacement method?

Moment distribution methodColumn analogy methodThree moment equationNone of the above

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

01/23/41

29➤ The degree of kinematic indeterminacy of a pin-jointed space frame is (where m, r and j have their usual meanings)

2j-rj-2r3j-rj-3r

30➤ The degree of static indeterminacy of a rigid-jointed space frame is (where m, r and j have their usual meanings)

m + r – 3j3m + r – 3j6m + r – 6j m + r – 2j

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