Q.1
The stress induced in a body, when suddenly loaded, is __________ the stress induced when the same load is applied gradually.
  • equal to
  • one-half
  • twice
  • four times
Q.2
A thick cylindrical shell having ro and ri as outer and inner radii, is subjected to an internal pressure (p). The maximum tangential stress at the inner surface of the shell is
  • [p (r₀² + ri²)] / (r₀² - ri²)
  • [p (r₀² - ri²)] / (r₀² + ri²)
  • 2pri²/ (r₀² - ri²)
  • (r₀² - ri²) / 2pri²
Q.3
A body is subjected to a tensile stress ofMPa on one plane and another tensile stress ofMPa on a plane at right angles to the former. It is also subjected to a shear stress ofMPa on the same planes. The maximum normal stress will be
  • 400 MPa
  • 500 MPa
  • 900 MPa
  • 1400 MPa
Q.4
A steel bar of 5 mm is heated fromC toC and it is free to expand. The bar Will induce
  • no stress
  • shear stress
  • tensile stress
  • compressive stress
Q.5
Euler's formula holds good only for
  • short columns
  • long columns
  • both short and long columns
  • weak columns
Q.6
The object of caulking in a riveted joint is to make the joint
  • free from corrosion
  • stronger in tension
  • free from stresses
  • leak-proof
Q.7
A vertical column has two moments of inertia (i.e. Ixx and Iyy ). The column will tend to buckle in the direction of the
  • axis of load
  • perpendicular to the axis of load
  • maximum moment of inertia
  • minimum moment of inertia
Q.8
Strain energy is the
  • energy stored in a body when strained within elastic limits
  • energy stored in a body when strained upto the breaking of a specimen
  • maximum strain energy which can be stored in a body
  • proof resilience per unit volume of a material
Q.9
Two shafts 'A' and 'B' transmit the same power. The speed of shaft 'A' isr.p.m. and that of shaft 'B' isr.p.m. The shaft 'B' has the greater diameter.
  • True
  • False
Q.10
Two non-collinear parallel equal forces acting in opposite direction
  • balance each other
  • constitute a moment
  • constitute a couple
  • constitute a moment of couple
Q.11
A framed structure is perfect if it contains members equal to (where n = number of joints in a frame)
  • 2n-3
  • n-l
  • 2n-l
  • n-2
Q.12
Forces are called concurrent when their lines of action meet in
  • one point
  • two points
  • plane
  • perpendicular planes
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