MCQ
1341. An isolated load W is acting at a distance a from the left hand support, of a three hinged arch of span 21 and rise h hinged at the crown, the horizontal reaction at the support, is--
Wa/h
Wa/2h
2W/ha
2h/Wa
1342. For a strongest rectangular beam cut from a circular log, the ratio of the width and depth, is --
0.303
0.404
0.505
0.707
1343. The maximum bending moment for a simply supported beam with a uniformly distributed load w/unit length, is --
W12
WF/4
WF/8
WP/12
1344. The force in CD of the truss shown in given figure, is--
3t compression
3t tension
Zero
1.5t compression
1345. In plastic analysis, the shape factor for rectangular section, is
1.4
1.5
1.6
1.7
1346. The greatest load which a spring can carry without getting permanently distorted, is called--
Stiffness
Proof resilience
Proof stress
Proof load
1347. For beams breadth is constant,--
Depth d M
Depth d
Depth d 3
Depth d 1/M
1348. A bar L metre long and having its area of cross- section A, is subjected to a gradually applied tensile load W. The strain energy stored in the bar is --
WL/2AE
WL/AE
WIL/AE
W^2L/2AE
1349. A masonry dam (density = 20,000 N/m3) 6 m high, one metre wide at the top and 4 m wide at the base, has vertical water face. The minimum stress at the base of the dam when the reservoir is full, will be --
75 N/m2
750 N/m2
7500 N/m2
75000 N/m
1350. In the truss shown in the given figure, the force in member BC is--
100 t compressive
100 t tensile
Zero
Indeterminate
1351. At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by--
Depth of the section
Depth of the neutral axis
Maximum tensile stress at the section
Maximum compressive stress at the section
1352. The ratio of maximum and average shear stresses on a rectangular section, is--
1
1.25
1.5
2.5
1353. The ratio of maximum shear stress to average shear stress of a circular beam, is--
2/3
3/2
3/4
4/3
1354. The force in BF of the truss shown in given figure, is--
4t tension
4t compression
4.5t tension
4.5t compression
1355. Pick up the correct statement from the following:
In a loaded beam, the moment at which the first yield occurs is called yield moment
In a loaded beam, the moment at which the entire section of the beam becomes fully plastic, is called plastic moment
In a fully plastic stage of the beam, the neutral axis divides the section in two sections of equal area
All the above
1356. The force in CD of the truss shown in given figure, is--
3t compression
3t tension
Zero
1.5t compression
1357. If a concrete column 200 x 200 mm in cross- section is reinforced with four steel bars of 1200 mm2 total cross-sectional area. Calculate the safe load for the column if permissible stress in concrete is 5 N/mm2 and Es is 15 Ec
264 MN
274 MN
284 MN
294 MN
1358. The force in AC of the truss shown in the given figure, is--
5t tension
4t tension
5t compression
4t compression
1359. For calculating the permissible stress 0 y/[(1+ a(l/r)]is the empirical formula, known as --
Straight line formula
Parabolic formula
Perry's formula
Rankine's formula
1360. The ratio of the area of cross-section of a circular section to the area of its core, is--
4
8
12
16