Practice Test: Question Set - 03
1. The shape of cantilever for uniformly distributed load will be
- (A) Straight line
- (B) Parabolic
- (C) Elliptical
- (D) Cubic
2. For a simply supported beam of length ‘l’, when a concentrated load W is applied in the center of the beam, the maximum deflection is
- (A) 5WL³/ 384EI
- (B) WL³/384EI
- (C) WL³/ 348EI
- (D) WL³/ 48EI
3. The point of contra flexure is a point where
- (A) Shear
force changes sign
- (B) Shear
force is maximum
- (C) Bending
moment changes sign
- (D) Bending
moment is maximum
4. The maximum stress produced in a bar of tapering section is at
- (A) Smaller end
- (B) Larger
end
- (C) Middle
- (D) Anywhere
5. The ultimate tensile stress of mild steel compared to ultimate compressive stress is
- (A) Same
- (B) More
- (C) Less
- (D) Unpredictable
6. The energy stored in a body when strained within elastic limit is known as
- (A) Resilience
- (B) Proof
resilience
- (C) Strain
energy
- (D) Impact energy
7. Modular ratio of two materials is the ratio of
- (A) Strains
- (B) Stress
and strain
- (C) Shear
stress and shear strain
- (D) Moduli
and elasticity
8. In compression test, the fracture in cast iron specimen would occur along
- (A) The
axis of load
- (B) An
oblique plane
- (C) At
right angles to the axis of specimen
- (D) Would
not occur
9. A coil is cut into two halves, the stiffness of cut coil will be
- (A) Double
- (B) Half
- (C) Same
- (D) None
of these
10. The bending stress in a beam is _________ section modulus.
- (A) Inversely
proportional to two times
- (B) Directly proportional to
- (C) Inversely proportional to
- (D) None
of these
11. When shear force at a point is zero, then bending moment is _________ at that point.
- (A) Zero
- (B) Minimum
- (C) Maximum
- (D) Infinity
12. Elasticity of Mild Steel specimen is defined by
- (A) Hooke’s law
- (B) Yield point
- (C) Plastic flow
- (D) Proof
stress
13. When a bar is cooled to -5°C, it will develop
- (A) No
stress
- (B) Shear
stress
- (C) Tensile
stress
- (D) Compressive
stress
14. If the radius of wire stretched by a load is doubled, then its Young’s modulus will be
- (A) Doubled
- (B) Halved
- (C) Becomes
four times
- (D) None of the above
15. In order to know whether a column is long or short, we must know its
- (A) Ultimate
shear stress of the column
- (B) Factor
of safety
- (C) Torque
resisting capacity
- (D) Slenderness
ratio
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