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MCQs

Total Questions : 605 | Page 55 of 61 pages
Question 541. The shape factor of standard rolled beam section varies from
  1.    1.30 to 1.40
  2.    1.40 to 1.50
  3.    1.20 to 1.30
  4.    1.10 to 1.20
 Discuss Question
Answer: Option D. -> 1.10 to 1.20
Question 542. The ratio of lateral strain to axial strain of a homogeneous material, is known
  1.    Yield ratio
  2.    Hooke’s ratio
  3.    Plastic ratio
  4.    Poisson’s ratio
 Discuss Question
Answer: Option D. -> Poisson’s ratio
Question 543. Maximum principal stress theory for the failure of a material at elastic point, is known
  1.    St. Venant's theory
  2.    Guest's or Trecas' theory
  3.    Von Mises' theory
  4.    Rankine's theory
 Discuss Question
Answer: Option D. -> Rankine's theory
Question 544. The maximum deflection of a simply supported beam of span L, carrying an isolated load at the centre of the span; flexural rigidity being EI, is
  1.    WL3/3EL
  2.    WL3/8EL
  3.    WL3/24EL
  4.    WL3/48EL
 Discuss Question
Answer: Option D. -> WL3/48EL
Question 545. Pick up the correct statement from the following:
  1.    In a loaded beam, the moment at which the entire section of the beam becomes fully plastic, is called plastic moment
  2.    All of these
  3.    In a fully plastic stage of the beam, the neutral axis divides the section in two sections of equal area
  4.    In a loaded beam, the moment at which the first yield occurs is called yield moment
 Discuss Question
Answer: Option B. -> All of these
Question 546. A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the joist will be,
  1.    14 M
  2.    15 M
  3.    13 M
  4.    16 m
 Discuss Question
Answer: Option D. -> 16 m
Question 547. The stiffness of the close coil helical spring is
  1.    4D3N/d4n
  2.    d4N/8D3n
  3.    d4N/4D3n
  4.    8D3N/d4n
 Discuss Question
Answer: Option B. -> d4N/8D3n
Question 548. Maximum strain theory for the failure of a material at the elastic limit, is known as
  1.    Rankine's theory
  2.    St. Venant's theory
  3.    Haig's theory
  4.    Guest's or Trecas' theory
 Discuss Question
Answer: Option B. -> St. Venant's theory
Question 549. A body is said to be in equilibrium if
  1.    It moves vertically
  2.    It rotates about its C.G.
  3.    It moves horizontally
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Question 550. A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is
  1.    4W²Dn/d4N
  2.    4W²D3n/d4N
  3.    4W²D3n²/d4N
  4.    4WD²n/d4N
 Discuss Question
Answer: Option B. -> 4W²D3n/d4N

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