The observed standard penetration test value in a deposit of fully submerged sand was 45 at a depth of 6 m. The average submerged unit weight of the soil is 9.7 kN/m3. The corrected N value is : (consider only overburden correction) (a) 43.76 (b) 67.14 (c) 54.63 (d) 58.95

43.54

Explanation:

Effective overburden pressure  will be

Overburden correction is given by

Where and are effective overburden pressure and overburden correction

Substituting the value of overburden pressure then

Taking hammer efficiency of 0.8,  drill rod length correction factor of 0.9 and  borehole correction factor of 1.05 then corrected SPT value will be

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.