Will upvote.
1- Silica is a common substance found in building materials . It releases dangerous crystalline silica dust into the air. Expalin/discuss some ways that workers in Construction expose themselves to respirable silica hazards.
2- Phosgene oxime, with a military designation of CX, is different than the pulmonary irritant________, with a military designation of CG.
a) Phosgene
b) Sarin
c) Lewisite
d) Cyanide
3- For those at high risk of exposure to ________, prophylactic treatment can be provided with pyridostigmine at 30 mg three times a day.
a) Phosgene oxime (CX)
b) Mustard agents
c) Nerve gas
d) Ammonia
4- Nerve agents inhibit the enzyme _________ at nerve endings or synapses and cause the excess accumulation of the _________ acetylcholine.
a) acetylcholinesterase; neurotransmitter
b) cytochrome oxidase; neurotransmitter
c) hemoglobin; neurotransmitter
d) phosphatase; hormone
5- Which military grade nerve agent was used as a terrorist weapon in an attack on subway passengers in Tokyo, killing 11 people and injuring 5,500.
a) VX
b) Sarin
c) Somin
d) TEPP
6- An accidental gas leak in Bhopal India exposed people to __________; and resulted in the deaths of more than 5,000 people within 5 days and adverse health effects in greater than 170,000 survivors.
a) Methyl isocyanate
b) Sulfur dioxide
c) Hydrogen fluoride
d) Phosgene
7- Arsine is the most acutely toxic form of arsenic, acting much faster than any solid arsenide or even pure arsenic. It is known as a blood gas agent because it binds preferentially to __________ and prevents oxygen exchange within the body.
a) cytochrome oxidase
b) hemoglobin
c) acetylcholinesterase
d) None of the above
8- Hydrocyanic acid and its derivative cyanogen chloride, their military designations are HCN and CK are toxic due to their ability to inhibit oxidizing enzymes containing ferric iron, particularly cytochrome oxidase, which results in interference with aerobic respiration. These chemicals belong to which group:
a) Cyanides
b) Organophosphates
c) Mustard agents
d) None of the above