单项选择题

The primary hazard of liquefied petroleum gas and liquefied natural gas is（）.

A.pressure
B.toxicity
C.temperature
D.flammability

相关考题

The amount of LFG that may be loaded into a given tank ...

单项选择题The amount of LFG that may be loaded into a given tank is determined by（）.

A.checking the loading sheet
B.loading to within 1 percent of outage
C.loading to within 10 percent of the safety relief valve setting
D.filling to the maximum level indicated on the liquid level gaging device

The airborne concentrations of substances (such as H2S)...

单项选择题The airborne concentrations of substances (such as H₂S) under which nearly all workers may be repeatedly exposed without adverse effects are called（）.

A.exposure limits
B.concentration limits
C.threshold limit values
D.substance limit values

Storage batteries should be charged in a well ventilate...

单项选择题Storage batteries should be charged in a well ventilated area because（）.

A.they generate heat
B.they emit hydrogen
C.of the toxic fumes they emit
D.they recharge faster in a well ventilated space

液化气体与IGC规则

The primary hazard of liquefied petroleum gas and liquefied natural gas is（）.