更多"One disadvantage of using regular d"的相关试题:
[单项选择]（）is a space system using one or more artificial earth satellites.
A. Satellite network
B. Satellite link
C. GMDSS
D. Satellite system
[单项选择]One advantage of dry cylinder liners used in a diesel engine is the（）
A. lower thermal expansion rates than wet liners
B. greater heat transfer rate than wet liners
C. greater wear resistance than wet liners
D. procedure to replace dry liners is simpler than for wet liners
[单项选择]The cold and dry climate of Antarctica（）it one of the toughest places on Earth to live.
A. produces
B. manufactures
C. does
D. makes
[单项选择]One of the advantages in the use of a dry liner over a wet liner is（）
A. it is fitted with neoprene O-ring seals
B. the honing process makes it easier to maintain the desired oil film
C. there is likelihood of water leaking into the combustion space
D. it fits more loosely due to a decrease in heat transfer through the composite wall
[单项选择]When using the term limber system one is referring to a（）.
A. Cleaning system
B. Drainage system
C. Strengthening system
D. Weight reduction system
[单项选择]One of the disadvantages of using carbon dioxide to extinguish a fire in an enclosed space is （）.
A. the "snow" which is sometimes discharged along with the gas is toxic
B. prolonged exposure to high concentrations of C02 gas causes suffocation
C. rapid dissipation of the C02 vapor
D. the C02 gas is lighter than air and a large amount is required to extinguisha fire near the deck
[单项选择]This machine works very well so long as no one（）with it.
A. interferes
B. disturbs
C. upsets
D. interrupts
[单项选择]Using more than one label on a single packet is required in what context？（）
A. MPLS TE
B. MPLS VPN
C. When CEF switching and Label switching is done
D. In all the above circumstances
[单项选择]A portable dry chemical fire extinguisher discharges by（）.
A. gravity when the extinguisher is turned upside down
B. pressure from a small CO2 cartridge on the extinguisher
C. air pressure from the hand pump attached to the extinguisher
D. pressure from the reaction when water is mixed with the chemical
[单项选择]Dry chemical extinguishers extinguish class B fires to the greatest extent by（）.
A. cooling
B. smothering
C. oxygen dilution
D. breaking the chain reaction
[单项选择]Dry chemical fire extinguishers are effective on which type(s) of fire?（）
A. Burning oil
B. Electrical
C. Paint
D. All of the above
[单项选择]The pneumatic containers which store bulk dry mud additives and cement on a ship are called（）.
A. mud hoppers
B. bulk bins
C. P-tanks
D. mud tanks
[单项选择] You define the following regular expression of currency values: regex tx = new regex("^-?/d+(/./d{2})?$") You are required to write code that will be used to find whether a string in the variable named Bill matches the regular expression or not. You are also required to use this code as the expression in a conditional statement and need to know which code segment to use. What should you do?（）
A. The tx.Matches（Bill）
B. The tx.Equals（Bill）
C. The tx.Match（Bill）
D. The tx.IsMatch（Bill）
[单项选择]The time worked beyond regular hours is expressed in term of（）.
A. timeover
B. timeout
C. overtime
D. outtime
[单项选择]A whistle signal of one prolonged，one short，one prolonged and one short blast，is sounded by a vessel（）.
A. at anchor
B. towing a submerged object
C. being overtaken in a narrow channel
D. in distress
[单项选择]A signal of one prolonged，one short，one prolonged，and one short blast，in that order is given by a vessel（）.
A. engaged on pilotage duty
B. in distress
C. at anchor
D. being overtaken in a narrow channel
[单项选择]When must a dry chemical fire extinguisher be recharged?（）
A. After each use
B. When the air temperature exceeds 90°F
C. Every 6 months
D. Every 12 months
