190204d Emissions

Question 1

During perfect compilation. What would be produced.

Answer 1

Carbon dioxide and water

Question 2

Carbon monoxide (CO) is produced in combustion. There is more when?

Answer 2

Not enough oxygen

Question 3

NOx + hydrocarbons =?

Answer 3

Smog

Question 4

What is opacity?

Answer 4

The degree that smoke blocks light.

Question 5

EGR targets what gas

Answer 5

NOx

Question 6

EGR creates more?

Answer 6

Carbon monoxide (CO) and hydrocarbons (HC)

Question 7

DOC targets what gas

Answer 7

Carbon monoxide (CO)
Hydrocarbons (HC)

Question 8

What metal is in a DOC?

Answer 8

Platinum or palladium

Question 9

Reactions occur in a DOC at what temp?

Answer 9

316-371 degrees C

Question 10

DPF trap what?

Answer 10

Particulate matter (soot)

Question 11

Passive regeneration is done when?

Answer 11

During normal operation.

Question 12

SCR targets what gas

Answer 12

NO and NO2 notirc oxides

Question 13

Where is DEF injected

Answer 13

Between the DPF and the SCR

Question 14

What % of DEF is urea

Answer 14

32.5%. Rest is water

Question 15

How long should it take to thaw a DEF tank

Answer 15

Within 1 hour of start up

Question 16

High sulphur causes what to after treatment?

Answer 16

Poisons or plugs filters

Question 17

Low ash oil is called what?

Answer 17

CJ-4

Question 18

What monitors and controls EGR flow

Answer 18

Exhaust gas temp and pressure

Question 19

DPF regeneration converts carbon into?

Answer 19

CO2 ( carbon dioxide) and NO (nitric oxide)