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MCQs

Total Questions : 189 | Page 15 of 19 pages
Question 141. An isobar diagram consists of __________The vertical pressure distribution on any horizontal plane at a depth z below the ground due to concentrated load is ___________
  1.    family of isobars of various intensities\(σ_z=K_B \frac{Q}{z} \)
  2.    single isobar only\(σ_z=K_B \frac{Q}{z^2} \)
  3.    two isobars only\(σ_z=K_B \frac{z}{Q} \)
  4.    isobars of same intensities\(σ_z=K_B \frac{Q}{z^3} \)
 Discuss Question
Answer: Option A. -> family of isobars of various intensities\(σ_z=K_B \frac{Q}{z} \)
Answer: family of isobars of various intensities\(σ_z=K_B \frac{Q}{z^2} \)
Question 142. An isobar diagram consists of __________
  1.    family of isobars of various intensities
  2.    single isobar only
  3.    two isobars only
  4.    isobars of same intensities
 Discuss Question
Answer: Option A. -> family of isobars of various intensities
Answer: (a).family of isobars of various intensities
Question 143. An isobar is a curved surface of the shape of _________
  1.    circular
  2.    rectangle
  3.    bulb
  4.    hexagon
 Discuss Question
Answer: Option C. -> bulb
Answer: (c).bulb
Question 144. The zone of soil in isobar is called __________
  1.    stress diagram
  2.    contour
  3.    pressure bulb
  4.    isotherm
 Discuss Question
Answer: Option C. -> pressure bulb
Answer: (c).pressure bulb
Question 145. The vertical stress is proportional to __________
  1.    \(\frac{z^2}{K_B} \)
  2.    \(\frac{K_B}{z^2} \)
  3.    \(\frac{K_B}{z^3} \)
  4.    \(\frac{z^3}{K_B} \)
 Discuss Question
Answer: Option B. -> \(\frac{K_B}{z^2} \)
Answer: (b).\(\frac{K_B}{z^2} \)
Question 146. The vertical stress is proportional to __________The maximum value of σz on vertical line is obtained at the point of intersection of vertical plane with radial line at the angle of ____________The maximum value of σz on vertical line is ____________
  1.    \(\frac{z^2}{K_B} \)39°30’\((σ_z)_{max}=\frac{0.0888Q}{r^2} \)
  2.    \(\frac{K_B}{z^2} \)39°45’\((σ_z)_{max}=\frac{0.0844Q}{z^4} \)
  3.    \(\frac{K_B}{z^3} \)35°15’\((σ_z)_{max}=\frac{0.2733Q}{z^3} \)
  4.    \(\frac{z^3}{K_B} \)39°15’\((σ_z)_{max}=\frac{0.4775Q}{z^3} \)
 Discuss Question
Answer: Option B. -> \(\frac{K_B}{z^2} \)39°45’\((σ_z)_{max}=\frac{0.0844Q}{z^4} \)
Answer: \(\frac{K_B}{z^2} \)39°15’\((σ_z)_{max}=\frac{0.0888Q}{r^2} \)
Question 147. When the maximum vertical stress is 0.111 kN/m² at a radial distance of 4m from the point load is __________ kN.
  1.    0
  2.    10
  3.    20
  4.    30
 Discuss Question
Answer: Option C. -> 20
Answer: (c).20
Question 148. What will be the intensity of vertical stress at a depth of 4m directly below the concentrated load of 20 kN?
  1.    0.4356 kN/m²
  2.    0.244 kN/m²
  3.    0.652 kN/m²
  4.    0.597 kN/m²
 Discuss Question
Answer: Option D. -> 0.597 kN/m²
Answer: (d).0.597 kN/m²
Question 149. The maximum vertical stress is _______ when a concentrated load of 20 kN acts at a radial distance of 2m.
  1.    0.444 kN/m²
  2.    0.555 kN/m²
  3.    0.666 kN/m²
  4.    0.777 kN/m²
 Discuss Question
Answer: Option A. -> 0.444 kN/m²
Answer: (a).0.444 kN/m²
Question 150. If r/z ratio is 2 and load of 20 kN is acting at a point, then the vertical pressure at a depth 6m is ____________
  1.    0.4356 kN/m²
  2.    0.244 kN/m²
  3.    0.1518 kN/m²
  4.    4.72*10¯³ kN/m²
 Discuss Question
Answer: Option D. -> 4.72*10¯³ kN/m²
Answer: (d).4.72*10¯³ kN/m²

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