Question

Which of the following statements is true?

a)Natural gas leaks will tend to hug the ground.

b)You should be concerned about a fire with a tanker truck placarded as 1202 is involved in an accident.

c)A truck carrying gasoline must always be placarded.

d)You should be concerned about HCN in a fire involving PET (poly ethylene terephthalate).

e)You should be concerned about SO₂ in a fire involving wool.

f)You should be concerned about NO₂ in a fire involving polyurethanes.

g)It is permissible to ship a small tank of ammonia (< 1 kg) on a passenger aircraft.

h)An accident involving transport of hazardous materials where a fatality is involved must be reported as soon as possible, but within no more than 12 hours.

i)The accident mentioned above should be reported to the Federal Emergency Management Agency.

j)If a driver leaves his truck, he should make sure that the shipping papers are with him at all times.

k)It is not permissible to ship carbon monoxide cylinders on a passenger aircraft.

l)Anhydrous hydrazine should be labeled as a corrosive, flammable liquid and poison.

m)The reportable quantity for acetonitrile is 1000 lbs.

n)A flash point of 50 ^oC is rated by DOT as a combustible liquid.

Answer 1

a)Wrong, because natural gas is lighter than air, so will rise.

b) True as placard 1202 is for flamable substances like gas, oil etc

c) True, as gasoline is flammable and is therefore hazardous, so required to be placarded.

d)Wrong, NH₃, CO and small amounts of HCN are produced in fire involving PET. Sine amount of HCN will be small so neen not be concerned.

e)Wrong,SO₂ percentage will be small, so not much of concern.

f)True as toxic amounts of NO₂ are produced in this fire.

g)Wrong, ammonia is not allowed on passanger aircraft.

h) True, under Under § 171.15 (a Law section)

i)False, the incident must be reported to National Response Centre.Federal Emergency Management Agency is for disasters beyond local or state authorities control capacity.

j) True so as to authenticate and help emergency response.

k)True becuase any leakage may create a mishap as CO is highly toxic gas.

l)True as these are its properties and are of concern.

m) False the reportable quantity is 5000lb

n)Ture, DOT considers substances with Flash point above 100°F as Combustible substances.