For sloping requirements, Class $C$ soil should have a $$ degree angle.

A$).34$

B$.45$

C$.53$

D$.60$

Which soil type is the most cohesive and least likely to cave$-$in$?$

type A

Type B

Type C

Type D

Under the Excavation standards, a competent person must be capable of $$

A$.$ Designing roadways

B$.$ Classifying soil

C$.$ Inspecting erosion and sediment control measures

D$.$ Monitoring water distribution

The thumb penetration test is used to quickly estimate the compressive strength of cohesive soil. Your thumb will sink in soil up to the end of your thumbnail for a $$ soil.

A$.$ Type A

$($B$)$ Type B

C$.$ Type C

D$.$ Type D

Trench cave$-$in prevention equipment or procedures are $n$ anytime the excavation depth is $q,$ feet or deeper.

A$.20$ feet

B$.15$ feet

C$.10$ feet

$5$ feet