更多"What is the primary disadvantage of"的相关试题:
[单项选择]What is the primary purpose for Digital Selective Calling (DSC)?（）
A. DSC provides reception of weather and navigational warnings plus search and rescue information
B. DSC provides low-cost，routine communications for the vessel operator
C. DSC is to be used for transmitting and receiving distress alerts to and from other ships or coast radio stations via radio
D. This aids SAR authorities in tracking a vessel's position by satellite
[多项选择]What are three primary activities in the cycle of building an enterprise security strategy?（）
A. activity audit
B. administration
C. policy establishment
D. technology implementation
[单项选择]What is the primary equipment for receiving MSI? （）
A. SART
B. EPIRB
C. NAVTEX
D. INMARSAT-B
[单项选择]What is the primary purpose of a splint applied in first aid?（）
A. Control bleeding
B. Reduce pain
C. Immobilize a fracture
D. Reset the bone
[简答题]what is the disadvantage of policing？
[多项选择]What functions do routers perform in a network (Choose two.)（）。
A. packet switching
B. access layer security
C. path selection
D. VLAN membership assignment
E. bridging between LAN segments
F. microsegmentation of broadcast domai
[单项选择]When towing，what is the main reason for using a chain bridle on a wire hawser（）.
A. It makes for an easy connection
B. It gives a spring effect to cushion the shock
C. It eliminates the necessity of a swivel
D. It does not chafe
[多项选择]What are three primary activities in the cycle of building an enterprise security strategy？（）
A. activity audit
B. administration
C. policy establishment
D. technology implementation
[单项选择]该化合物CH3CH2CH2CH（CH3）CH2CH3的系统名称是（）。
A. 庚烷
B. 3一甲基己烷
C. 4一甲基己烷
D. 异辛烷
[单项选择]CH≡CH、CH2=CH2、CH3CH3等三种物质中，（）毒性最大。
A. CH≡CH
B. CH2=CH2
C. CH3CH3
D. 三者毒性一样大
[单项选择]The disadvantage of using three strand nylon line for towing is its（）.
A. inherent weakness
B. tendency to rot if left damp
C. danger to crew if it parts
D. strength and shock absorbing abilities
[单项选择]Which characteristic of Halon is a disadvantage when it is used as a fire extinguishing medium?（）
A. Leaves a residue
B. Cost，relative to other agents
C. Breaks down while under prolonged storage
D. Conducts electricity
[单项选择]Which characteristic is a disadvantage of a controllable- pitch propeller as compared to a fixed-pitch propeller? （）
A. Slightly higher fuel consumption
B. Lack of directional control when backing
C. Inefficient at high shaft RPM
D. Some unusual handling characteristics
[单项选择]One disadvantage of using regular dry chemical (sodium bicarbonate) in firefighting is that（）.
A. it can break down under high heat and emit noxious fumes
B. it will decompose under prolonged storage and lose its effectiveness
C. fire has been known to flash back over the surface of an oil fire
D. it is ineffective in fighting fires in high-voltage electrical equipment
[单项选择]A disadvantage of using chain lashing on heavy vehicles aboard Ro-Ro vessels is that it is （）.
A. heavy
B. easily damaged
C. affected by temperature
D. costly relative to the strength ratio
[单项选择]化合物C（CH3）3一CH（CH3）CH—CH2的名称是（）。
A. 2，2，3一三甲基-4-戊烯
B. 2，2，3一三甲基-1-戊烯
C. 3，4，4一甲基-1-戊烯
D. 3，4，4一三甲基-1-戊烯
[单项选择]Which is a disadvantage of Halon as a fire extinguishing medium?（）
A. Conducts electricity
B. Difficult to store
C. Large volume necessary to be effective
D. Ineffective in powdered metal fires
[单项选择]The disadvantage of using a heaving line to pass a towline is that（）.
A. it increases the likelihood of collision between the towing vessel and the disabled vessel
B. recreational boaters tend to make the heaving line fast to the towed vessel as if it were the towline
C. the monkey fist may injure someone
D. it may reduce the catenary and increase yawing
