JNTU Ananthapur Basic civil and mechanical engineering first unit multiple choice questions and answers

1. 1.The deformation in unit original dimension is
termed as strain.
• A.stress.
• B.Strain
• C.Force
• D.Youngs Modulus
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3. 2.This internal resistance offered by the body to
counteract the applied load is called
• A.stress.
• B.Strain
• C.Force
• D.Youngs Modulus

4. 3.When an external force produces elongation of
the body in its direction, it is termed as
• A.Tensile force.
• B.Compresive force
• C.Stress
• D.Starin

5. 4.When an external force causes shortening of
the body in the direction of force, it is termed
as a…………..
• A.Tensile force.
• B.Compresive force
• C.Stress
• D.Starin

6. 5.When a body is subjected to two equal and
opposite forces acting tangentially across the
resisting section, as a result of which the body
tends to shear off across the section, then this
tangential force is termed as
• A.Shear strain
• B.Shear stress
• C.A &B
• D.NONE

7. 6.The change in volume of an elastic body due to
external force in unit original volume is called
as the volumetric strain
• A.Shear strain
• B.Shear stress
• C. Volumetric strain
• D.NONE

8. • 7.The property by which a body returns to its
original shape after the removal of external
load is elasticity.
• A.Shear strain
• B.Shear stress
• C. Volumetric strain
• D.Elasticity

9. • 8.………… states that when an elastic material
is stressed within elastic limit, the stressis
proportional to the strain.
• A.Hooke’s
• B.Elasticity
• C.Plasticity
• D.none

10. • 9.The ratio of the axial stress to the
corresponding axial strain, with in elastic limit
is called the young’s modulus
• A.Young’s Modulus
• B. Shear modulus

11. 10.The ratio of the shear stress to the
corresponding shear strain is a constant,
which is called shear modulus Then symbol of
shear modulus is ---------
• A.G
• B.C
• C.C
• D.R

12. 11.When a body is subjected to uniform direct
stress in all the three mutually perpendicular
• direction, the ratio of the direct stress to the
corresponding volumetric strain is found to
• be a constant which is called the bulk modulus
• A. Bulk Modulus
• B.Young’s Modulus
• C. Shear modulus
• D.NONE

13. 12.Poisson’s ratio =
• A. Lateral strain/ Longitudinal Strain
• B. Longitudinal Strain/ Lateral strain
• C.Change in length /original length
• D.none

14. • 13.Factor of safety
• A.Ultimate stress/ Allowable stress
• B. Ultimate stress/ Bulk modulus
• C. Ultimate stress/ Shear modulus
• D. Ultimate stress/ Young’s modulus

15. Bending moment
14.------------acts about the axes of the members
that are perpendicular to the member
(vertical and horizontal).
• A. Bending moment
• B. Stress
• C. strain
• D. None

16. 15.In case of simply supported beam, bending
moment will be zero at
• A. supports
• B.Middle
• C.Center
• D.none

17. • 16.U.D.L stands for?
a) Uniformly diluted length
b) Uniformly developed loads
c) Uniaxial distributed load
d) Uniformly distributed load

18. • 17.A beam which extends beyond it supports
can be termed as __________
a) Over hang beam
b) Over span beam
c) Isolated beams
d) Tee beams

19. • 18.Example for cantilever beam is ______
a) Portico slabs
b) Roof slab
c) Bridges
d) Railway sleepers

20. • 19.The relationship between Young’s modulus
(E), Bulk modulus (K) and Poisson’s ratio (µ) is
given by
• A.E=2K(1-2µ)
• B.E=3K(1-2µ)
• C.E=2K(1-2µ)
• D.E=2K(1-3µ)

21. 20.Which of the following is not a basic type of
strain?
• A.Compressive strain
• B.Shear strain
• C.Area strain
• D.Volume strain