Driver operator

Question 1

what does DPF do

Answer 1

collects particulates from exhaust and burns more completely

Question 2

driving downhill breaking

Answer 2

use service break and auxilliary breaks as well as manually shifting down gears to speed limit

Question 3

engine lugging

Answer 3

overthrottling (more diesel injected than can be burned)

Question 4

when does a vehicle outrun the audible warning sounds

Answer 4

80km

Question 5

when more than one emergancy vehicle is responding how far apart should they stay

Answer 5

300-500 ft

Question 6

when is engine brake retarder activated

Answer 6

after the driver releases pressure from accelerator

Question 7

what weight must have auxiliary breaking systems

Answer 7

GVW of 36000lbs or 18000kg

Question 8

what does teh driver controlled dif lock do

Answer 8

improves traction in bad weather by locking dif so that wheels turn at the same speed.

Question 9

interaxel dif lock

Answer 9

allows for difference speeds from the two rear axles

Question 10

fire apparatus training and maintenance follows which NFPA standard

Answer 10

NFPA 1451

Question 11

what does foam solution conductivity testing measure

Answer 11

quality of sythetic foam

Question 12

what pressure must be reached while doing hydrostatic testing

Answer 12

500psi

Question 13

pumps with a tank capacity of 500gallons or 2000L should be able to flow how much?

Answer 13

250gpm or 1000l/min