CIVE 401 SDSU INITIAL TEST SCRIPT 2026 QUESTIONS WITH SOLUTIONS GRADED A+

CIVE 401 SDSU INITIAL TEST SCRIPT 2026
QUESTIONS WITH SOLUTIONS GRADED A+

⩥ erosion by waves. Answer: - waves it rocks, causing it to erode
- regional scale issue
ie scarborough bluffs
- large water breaks put in place


⩥ transported soil. Answer: deposits of rivers, glacier and other surficial
processes


⩥ residual soils. Answer: developed in place by weathering
- soils form in response to physical, chemical and biological activities


⩥ soil forming factors. Answer: 1. climate
2. parent material
3. organisms
4. relief (topography)
5. time


⩥ what is soil made of?. Answer: 1. mineral matter
2. air

,3. water
4. organic matter


⩥ three phases of soil. Answer: 1. solid mineral particles
2. water
3. air


⩥ conservation of volume. Answer: Vt = Va + Vw + Vs
volume total = volume of air + volume of water + volume of solid


⩥ water content formula (moisture content). Answer: 0w = Mw/Ms
- mass of water/mass of solid


⩥ water saturation formula. Answer: Sw = Vw/Vv
- volume of water/volume of void
- in the range of 0 to 1


⩥ air saturation. Answer: Sa = Va/Vv
- volume of air/volume of void
- in the range of 0 to 1


⩥ void ratio. Answer: e = Vv/Vs

, - volume of void/volume of solid


⩥ void porosity. Answer: n = Vv/Vt
- volume of void/total volume


⩥ alternate e (void ratio). Answer: n/1-n


⩥ alternate n (porosity ratio). Answer: e/1+e


⩥ bulk density. Answer: pb = Mt/Vt
- mass total/volume total


⩥ bulk unit weight. Answer: yb = (Mt*g)/Vt
- mass total * gravity/volume total


⩥ specific gravity. Answer: Gs = Ms/Vs*pw
- mass of solid/volume of solid*mass density of water


⩥ volume of water. Answer: Vw = Sw*n*Vt
- water saturation * porosity * total volume


⩥ volume of air. Answer: Va = Sa*n*Vt