site layout and prep

Question 1

Good grounding in a substation yard is essential in order for relays to be activated to open switchgears during ground faults.

Answer 1

true

Question 2

The ideal location for a substation is ? , but out of public view.

Answer 2

close to the load center

Question 3

When an engineer plans for stormwater drainage or the flow of oil released accidentally, he or she will refer to a ? map.

Answer 3

topographical

Question 4

Soil resistivity is a factor in site selection because soil with a high resistance may require compensation measures so that the ?

Answer 4

ground grid operates properly

Question 5

Fill areas should be compacted in eight-inch layers to ? of the maximum density as mandated by ASSHTO Standard T180.

Answer 5

95%

Question 6

The definition of the term soil ? is to mechanically increase the density of the soil.

Answer 6

compaction

Question 7

Increasing soil density by putting particles in motion and moving them closer together is the ? method.

Answer 7

vibration

Question 8

The four types of compaction are further divided into two basic types. These basic types are the ? type and the vibratory type.

Answer 8

static

Question 9

In soil with too much moisture, the particles cannot move past each other, resulting in inadequate compaction.

Answer 9

false

Question 10

Rammers cover three types of compaction and operate within a range of ? blows per minute.

Answer 10

500 to 750

Question 11

A soil type with cohesive properties is ?

Answer 11

clay