Particulate Matter (PM) Emission Found During Idle Conditions from Some

question 55

Multiple Choice

Particulate matter (PM) emission found during idle conditions from some diesel engines can be as high as:

• A)0.2 g/bhp/hr"
• B)0.7 g/bhp/hr"
• C)0.8 g/bhp/hr
• D)0.4 g/bhp/hr"

---

Definitions:

Dark Lava Rock

Often basalt, this is a type of volcanic rock that is rich in iron and magnesium, giving it a dark coloration.

Continental Crust

The thick part of the Earth's crust that forms the continents and continental shelves, consisting mainly of granitic rocks.

Oceanic Crust

The thin, dense layer of the Earth's crust that underlies the ocean basins, composed primarily of basaltic rock.

Copper Mines

Sites where copper ore is extracted from the Earth, typically through open pit or underground mining methods.