281. A beam of triangular section is placed with its base horizontal. The maximum shear stress occurs at
apex of the triangle
mid of the height
centre of gravity of the triangle
base of the triangle
✅ The correct answer is option B.
Strength of Materials MCQs
282. The layer at the centre of gravity of the beam as shown in the below figure, will be
in tension
in compression
neither in tension nor in compression
✅ The correct answer is option C.
283. In case of an over-reinforced beam, the depth of actual neutral axis is the same as that of the critical neutral axis.
TRUE
FALSE
✅ The correct answer is option B.
285. For a beam, as shown in the below figure, the maximum deflection lies at
from B
from A
from B
from A
✅ The correct answer is option C.
286. When a load on the free end of a cantilever beam is increased, failure will occur
at the free end
at the fixed end
in the middle of the beam
at a distance 2l/3 fro
✅ The correct answer is option B.
287. The distance between the centre of a rivet hole to the nearest edge of plate, is called
margin
pitch
back pitch
diagonal pitch
✅ The correct answer is option A.
288. Two closely-coiled helical springs ‘A’ and ‘B’ of the same matenal, same number of turns and made from same wire are subjected to an axial load W. The mean diameter of spring ‘A’ is double the mean diameter of spring ‘B’. The ratio of deflections in spring ‘B’ to spring ‘A’ will be
1-Aug
1-Apr
2
4
✅ The correct answer is option A.
289. The maximum shear stress is __________ the algebraic difference of maximum and minimum normal stresses.
equal to
one-fourth
one-half
twice
✅ The correct answer is option C.
290. A flitched beam is used to
change the shape of the beam
effect the saving in material
equalise the strength in tension and compression
increase the cross-sec
✅ The correct answer is option C.