网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
The principal personnel hazard unique to Halon extinguishers is（）.
A
displacement of oxygen
B
skin irritation
C
inhaling toxic vapors
D
eye irritation
参考答案
参考解析
解析：
暂无解析
更多 “单选题The principal personnel hazard unique to Halon extinguishers is（）.A displacement of oxygenB skin irritationC inhaling toxic vaporsD eye irritation” 相关考题
考题
73/78防污公约附则Ⅵ对船舶使用消耗臭氧层物质规定，船上可能有的"消耗臭氧层物质"包括但不限于下列各项______。Ⅰ.Halon1211;Ⅱ.Halon1301;Ⅲ.Halon2402;Ⅳ.CFC-11;Ⅴ.CFC-12;Ⅵ.CFC-113;Ⅶ.CFC-114;Ⅷ.CFC-115。A.Ⅰ+Ⅱ+ⅢB.Ⅳ+ⅤC.Ⅵ+Ⅶ+Ⅶ+ⅧD.以上全部
考题
When will the fire department come to conduct a fire prevention inspection in our company?A. Next month. I’ve checked hydrants and fire-extinguishers on each floorB.Next day. The manager will check hydrants and other equipment in the building.C.Next week. But hydrants and fire extinguishers on each floor has already been checkedD.The day before yesterday. I had already checked hydrants and fire extinguishers on each floor.
考题
听力原文：There are primarily three principal parties involved: the trustor, the beneficiary and the trustee.(8)A．The trustor, the beneficiary and the settlor are primarily three principal parties.B．The trustor, the beneficiary and the trustee are primarily three principal parties.C．The trustor, the beneficiary and the grantor are primarily three principal parties.D．The trustor, the beneficiary and the donor are primarily three principal parties.
考题
某企业的数据库系统中有如下所示的员工关系和仓库关系，每个仓库可有多名员工，但只有一名负责人。员工关系(employee)：仓库关系(warehouse)：则创建仓库表结构的SQL语句为(58)。A．CREATE TABLE (employee ID CHAR(2)NOTNULL UNIQUE， name CHAR(30)NOT NULL， address CHAR(40)， principal ID CHAR(3))；B．CREATE warehouse(warehouse ID CHAR(2)PRIMARY KEY， name CHAR(30)， address CHAR(40)， principal ID CHAR(3))；C．CREATE TABLE warehouse(warehouse ID CHAR(2)PRIMARY KEY， name CHAR(30)NOT NULL， address CHAR(40)， principal ID CHAR(3)， FOREIGN KEY(principal ID)REFERENCES employee(employee ID))；D．CREATE TABIE warehouse(warehouse ID CHAR(2)， name CHAR(30)NOT NULL， address CHAR(40)， principal ID CHAR(3)， PRIMARY REY(warehouse ID)， FOREIGN KEY(employee ID)REFERENCES employee(employee ID))；
考题
You are cleaning the tanks after carrying a cargo of crude oil. Which statement is TRUE?A.Washing water should be recirculated if possible because it has the same electric potential as the cargo tank being cleanedB.The hoses to portable cleaning machines should be disconnected before the machines are removed from the tankC.The principal hazard with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residueD.Steam cleaning and water washing are both capable of generating electrostatic charges within a tank
考题
CO2 and Halon extinguishers are used for electrical fire, as well as （）fire.A、commonB、oilC、electricalD、chemical
考题
最基本的保护层是油漆。（）A、The principal protective coating is paint.B、The principal protective coating is cement wash.C、The principal protective coating is bitumen.D、The principal protective coating is varnish.
考题
单选题Halon fire extinguishers are NOT effective when used on which types of fires?（）A
Fires in electrical equipmentB
Flammable oils and greasesC
Class A fires in ordinary combustiblesD
Materials containing their own oxygen
考题
单选题How can vessel personnel detect the operation of a SART in its vicinity?（）A
A unique radar signal consisting of a blip code radiating outward from a SART's position along its line of bearingB
A unique two tone warbling signal heard on VHF-FM ch-70C
A unique two tone alarm signal heard upon the automatic unmuting of the 2182 kHz radiotelephone automatic watch receiverD
The SART signal appears as a target which comes and goes; the effect of heavy swells on the SART
考题
单选题You are cleaning the tanks after carrying a cargo of crude oil. Which statement is TRUE? （）A
Washing water should be recirculated if possible because it has the same electric potential as the cargo tank being cleanedB
The hoses to portable cleaning machines should be disconnected before the machines are removed from the tankC
The principal hazard with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residueD
Steam cleaning and water washing are both capable of generating electrostatic charges within a tank
考题
单选题最基本的保护层是油漆。（）A
The principal protective coating is paint.B
The principal protective coating is cement wash.C
The principal protective coating is bitumen.D
The principal protective coating is varnish.
考题
单选题73/78防污公约附则Ⅵ对船舶使用消耗臭氧层物质规定，船上可能有的"消耗臭氧层物质"包括但不限于下列各项（）。 Ⅰ．Halon1211； Ⅱ．Halon1301； Ⅲ．Halon2402； Ⅳ．CFC-11； Ⅴ．CFC-12； Ⅵ．CFC-113； Ⅶ．CFC-114； Ⅷ．CFC-115。A
Ⅰ＋Ⅱ＋ⅢB
Ⅳ＋ⅤC
Ⅵ＋Ⅶ＋Ⅶ＋ⅧD
以上全部
考题
单选题Fire extinguishers of sizes III，IV，and V are designated as（）.A
portableB
semi-portableC
fixedD
disposable
考题
单选题Halon extinguishes a fire by（）.A
breaking the chain reactionB
smothering the fireC
cooling the fireD
coating the fuel with a nonflammable surface
考题
单选题Halon extinguishers used on a class C fire should be directed at the（）.A
base of the equipmentB
top of the equipmentC
power sourceD
source of the fire
考题
单选题Halon extinguishes fire primarily by（）.A
coolingB
smotheringC
shielding of radiant heatD
breaking the chain reaction
考题
单选题Halon from extinguishers used on a class B fire，should be directed（）.A
at the top of the flamesB
at the base of the fire near the edgeC
in short quick burstsD
toward the upwind side of the fire
考题
单选题We are looking for a Principal Economist, who as well as advising managers and board members on environmental economic policy matters, will develop policy relating to cost benefit analysis at the upcoming review and beyond.A
The Principal Economist will become a board member.B
The Principal Economist will deal with environmental matters.C
The Principal Economist’s major responsibility is to make certain policy.
考题
单选题Which statement is TRUE concerning spare charges for portable fire extinguishers on unmanned tank barges?（）.A
Spare charges shall be carried for at least 50 percent of each size and variety required on boardB
If the unit cannot be charged by the vessel's personnel，one spare unit shall be carried in lieu of spare chargesC
Spare charges shall be stowed in watertight containers on deckD
Regulations concerning spare charges do not apply to unmanned barges
热门标签
最新试卷
