Which of the following factors are associated with the behaviour of sand mass during earthquake to cause liquefaction? 1. Number of stress cycles 2. The frequency, and amplitude of vibration of waves generated by an earthquake 3. Characteristics of sand 4. Relative density Select the correct answer using the codes given below :
Options
A. 1, 2 and 3
B. 1, 2, 3 and 4
C. 2 and 4
D. 3 and 4
Correct Answer
1, 2, 3 and 4
More questions
1. The minimum horizontal distance between two parallel main reinforcing bars, is
Options
A. the diameter of the bar if their diameters are same
B. the diameter of the longer bar if their diameters are unequal
C. 5 mm more than nominal maximum size of the coarse aggragate
Correct Answer: both longitudinal and cross sections are required
7. An R.C.C. column of 30 cm diameter is reinforced with 6 bars 12 mm ? placed symmetrically along the circumference. If it carries a load of 40, 000 kg axially, the stress is