Model Test Paper Geology
Geology MCQ Test Paper
1. A direct tensile stress on a specimen will induce
the shear stress on a plane inclined at 45° to its own plane
(a) Same as tensile stress
(b) Half of tensile stress
(c) Zero
(d) Two times the tensile stress
Answer. (b)
2. Dumpling capacity of material is its ability to
(a) Absorb shock
(b) Absorb vibrations
(c) Withstand compression
(d) Absorb impact loads
Answer. (b)
3. Principal stress in case of pure shear will be
equal in magnitude
(a) And similar in nature
(b) But opposite in nature
(c) To half the maximum shear stress and similar in nature
(d) To half the maximum shear stress but apposite in nature
Answer. (a)
4. Disruptive strength is the maximum strength of
a metal
(a) When subjected to three principal tensile stresses at
right angles to one another and all of equal magnitude.
(b) When loaded in tension
(c) When loaded in compression
(d) When loaded in shear
Answer. (a)
5. The stress at which extension of the material
takes place more quickly as compared to the increase
in load is called
(a) Elastic point of the material
(b) Plastic point of the material
(c) Breaking point of the material
(d) Yielding point of the material
Answer. (d)
6. Flow stress is
(a) The shear stress required to cause plastic
De-formation of solid metal
(b) Concerned with liquid
(c) Corresponding to breaking point
(d) None of the above
Answer. (a)
7. In eccentrically loaded members, a neutral axis
can be drawn by joining the points which represent
the greatest permissible eccentricity in each coordinate
direction. By symmetry, four neutral axes exist in the
section : these lines from the boundaries of a core known as kern.
Compressive forces acting within the kern of a section
(a) Cannot produce tensile stress
(b) Sometimes produce tensile stresses
(c) Always produces tensile stresses
(d) Are zero
Answer. (a)
8. Dilatometer is an instrument used for measuring
(a) Strain
(b) Expansion contraction due to change in temperature
(c) Stress
(d) Damping capacity
Answer. (b)
9. For eccentrically loaded struts
(a) Solid members are preferred
(b) Hollow members are preferred
(c) Both are equally good
(d) Reinforced members are preferred
Answer. (b)
10. For pure shear at a point, sum of normal stresses
on two orthogonal planes is equal to
(a) Maximum shear stress
(b) Twice the maximum shear stress
(c) Half the maximum shear stress
(d) Zero
Answer. (d)
11. The hoop stress for a thick cylinder at any point
at radius r, from centre is given by Lame’s equation is
(a) a+br
(b) a+b/2
(c) a + (2b)/r
(d) None of the above
Answer. (b)
12. Beam of uniform strength can be obtained by
(a) Keeping depth constant throughout the length
and varying in the width suitably
(b) Keeping the width constant throughout the
length and varying the depth suitably
(c) Varying both the depth and width suitably
(d) Any one of the above.
Answer. (d)
13. When it is indicated that member is elastic, it
means that when force is applied it will
(a) Not deform
(b) Be safest
(c) Stretch
(d) Not stretch
Answer. (c)
14. Flow stress corresponds to
(a) Fluids in motion
(b) Breaking point
(c) Plastic deformation of solids
(d) Rupture stress
Answer. (c)
15. In a thick walled spherical vessel, the Longtudinal
stress is
(a) Maximum at inner surface
(b) Maximum at outer surface
(c) Remains constant throughout the thickness
(d) None of the above
Answer. (c)
16. Value of shear stress induced in the shaft due
to applied couple varies
(a) From maximum at the centre to zero at the
circumference
(b) From zero at the centre to maximum at the
circumference
(c) From maximum at the centre to minimum at
the circumference
(d) From minimum at the centre to maximum at
the circumference
Answer. (b)
17. Ratio of maximum central deflection in a beam
of span L due to a u.d.l. to the deflection in a beam
fixed at both ends due to the same load is
(a) 8/5
(b) 2
(c) 1
(d) 5
Answer. (d)
18. In a beam stress and moment
(a) Are directly proportional
(b) Are inversely proportional
(c) Have curvilinear related
(d) Have unpredictable relationship
Answer. (a)
10. Steel bars in a concrete beam are embedded
(a) Uniformly
(b) Near bottom section
(c) In the centre
(d) Near top section
Answer. (b)
20. Radius of curvature of a stressed beam and
modulus elasticity
(a) Are directly proportional
(b) Are inversely proportional
(c) Are inversely related
(d) Have unpredictable relationship
Answer. (d)
21. Bending moment on a section is maximum where
shearing force
(a) Is maximum
(b) Is minimum
(c) Is equal
(d) Changes sign
Answer. (a)
(a) Is in the middle
(b) Passes through the c.g.
(c) Is one whose length remains unchanged during
the deformation
(d) Lies at bottom most fibre
Answer. (c)
23. Moment diagram for a cantilever beam subjected
to bending moment at end of beam will be
(a) Rectangle
(b) Triangle
(c) Parabola
(d) Cubic parabola
Answer. (a)
24. Design of thin cylindrical shells is based on
(a) Hoop stress
(b) Longitudinal stress
(c) Volumetric stress
(d) Average of hoop and longitudinal stress
Answer. (a)
25. The point of contra-flexure occurs only in
(a) Cantilever beams
(b) Overhanging beams
(c) Simply supported-beams
(d) Continuous beams
Answer. (b)
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