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Hassan
1. 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 joi
A. 10 m
B. 12 m
C. 14 m
D. 10 m
2. A material is said to be perfectly elastic if
A. it regains its original shape on removal of the load
B. It regains its original shape partially on removal of the load
C. it does not regain its original shape at all
D. it regains its original shape on removal of the load
3.Beams composed of more than one material, rigidly connected together so as to behave as one piece, are known as
A. Compound beams
B. Indeterminate beams
C. Determinate beams
D. Compound beams
4.Pick up the correct statement from the following:
A. In a loaded beam, the moment at which the first yield occurs is called yield moment
B. In a loaded beam, the moment at which the entire section of the beam becomes fully plastic, is called plastic moment
C. In a fully plastic stage of the beam, the neutral axis divides the section in two sections of equal area
D. In a loaded beam, the moment at which the first yield occurs is called yield moment
5. The tangential component of stress on an plane inclined θ° to the direction of the force, may be obtained by multiplying the normal stress by
A. sin θ
B. cos θ
C. tan θ
D. sin θ
6. There are two hinged semicircular arches A, B and C of radii 5 m, 7.5 m and 10 m respectively and each carries a concentrated load W at their crowns. The horizontal thrust at their supports will be
A. 1 : 1 1/2 : 2
B. 2 : 1 1/2 : 1
C. 1 : 1 : 2
D. 1 : 1 1/2 : 2
7. If Q is load factor, S is shape factor and F is factor of safety in elastic design, the following
A. Q = S + F
B. Q = S - F
C. Q = F - S
D. Q = S + F
8. In plastic analysis, the shape factor for a triangular section, is
A. 1.5
B. 1.34
C. 2.34
D. 1.5
9. Pick up the correct statement from the following:
A. The point of intersection of the bending axis with the cross section of the beam, is called shear centre
B. For I sections, the shear centre coincides with the centroid of the cross section of the beam
C. For channels, the shear centre does not concide its centroid
D. The point of intersection of the bending axis with the cross section of the beam, is called shear centre
10. For determining the support reactions at A and B of a three hinged arch, points B and C are joined and produced to intersect the load line at D and a line parallel to the load line through A at D'. D
A. 30°
B. 45°
C. 60°
D. 30°
11.Pick up the incorrect statement from the following : The torsional resistance of a shaft is directly proportional to
A. modulus of rigidity
B. angle of twist
C. reciprocal of the length of the shaft
D. modulus of rigidity
12.Which of the following has more fire resisting characteristics?
A. Marble
B. Lime stone
C. Compact sand stone
D. Marble
13.The rocks which are formed due to cooling of magma at a considerable depth from earth's surface are called
A. Plutonic rocks
B. Hypabyssal rocks
C. Volcanic rocks
D. Plutonic rocks
14.Plywood has the advantage of
A. Greater tensile strength in longer direction
B. Greater tensile strength in shorter direction
C. Same tensile strength in all directions
D. Greater tensile strength in longer direction
15. Due to attack of dry rot, the timber
A. Cracks
B. Shrinks
C. Reduces to powder
D. Cracks
16. Excess of alumina in brick earth makes the brick
A. Impermeable
B. Brittle and weak
C. To lose cohesion
D. Impermeable
17. Pick up the correct statement from the following:
A. In stone arches, the stones are placed with their natural beds radial
B. In cornices, the stones are placed with their natural beds as vertical
C. In stone walls, the stones are placed with their natural beds as horizontal
D. In stone arches, the stones are placed with their natural beds radial
18. The constituent of cement which is responsible for all the undesirable properties of cement is
A. Di-calcium silicate
B. Tri-calcium silicate
C. Tri-calcium aluminate
D. Di-calcium silicate
19. Inner part of a timber log surrounding the pitch, is called
A. Sapwood
B. Cambium layer
C. Heart wood
D. Sapwood
20.For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of
A. 1 : 2
B. 1 : 3
C. 1 : 4
D. 1 : 2
21. If ‘P’ is the percentage of water required for normal consistency, water to be added for determination of initial setting time, is
A. 0.70 P
B. 0.75 P
C. 0.80 P
D. 0.70 P
22. The basic purpose of a retarder in concrete is
A. To increase the initial setting time of cement paste in concrete
B. To decrease the initial setting time of cement paste in concrete
C. To render the concrete more water tight
D. To increase the initial setting time of cement paste in concrete
23. Clay and silt content in a good brick earth must be at least
A. 50 %
B. 40 %
C. 30 %
D. 50 %
24. Which of the following is the purest form of iron?
A. Cast iron
B. Wrought iron
C. Mild steel
D. Cast iron
25.If the iron ore contains clay as an impurity, the flux added during calcination, is
A. Clay
B. Lime stone
C. Argillaceous iron ore
D. Clay
26.The stretcher bond in brick masonry can be used only when the thickness of wall is
A. 90 mm
B. 180 mm
C. 190 mm
D. 90 mm
27. Marble is an example of
A. aqueous rock
B. metamorphic rock
C. sedimentary rock
D. aqueous rock
28. Slate in the form of tiles is used
A. for paving
B. as road metal
C. as an excellent roof covering material
D. for paving
29.Granite is mainly composed of
A. quartz and mica
B. felspar and mica
C. quartz and felspar
D. quartz and mica
30.Sandstone consists of
A. quartz and lime
B. quartz and silica
C. quartz, lime and silica
D. quartz and lime
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