To ensure the safety in operating hatch covers, oil the moving parts （）.A、monthlyB、every three monthsC、once monthlyD、every two months
To ensure the safety in operating hatch covers, oil the moving parts （）.
- A、monthly
- B、every three months
- C、once monthly
- D、every two months
相关考题：
______ of the following need NOT be entered in the Official Logbook？ _______.A.The testing of the internal combustion engine driven emergency generators at least once each month the vessel is navigatedB.The testing of storage batteries for emergency lighting and power systems once each 6 months the vessel is navigated．C.The actual draft when the vessel arrives in salt water after departing a portD.The testing of the line-throwing appliance once every 3 months
If your passenger vessel is fitted with a loudspeaker system，it must be tested at least once ______.A.every weekB.a dayC.every tripD.a watch or once a trip，whichever is shorter
What is the period of validity of the SOLAS required Cargo Ship Safety Construction Certificate?A.12 monthsB.24 monthsC.48 monthsD.60 months
Each life jacket light that has a non-replaceable power source must be replaced ______．A.every 6 months after initial installationB.every 12 months after initial installationC.every 24 months after initial installationD.on or before the expiration date of the power source
After four months in foreign parts, every hour at home was__________．A.valuableB.preciousC.costlyD.luxurious
Questions 46-48 refer to the following letter.Theater Digest125 Lake AveChicago, IL, 606i6Dear Subscriber,Your subscription to Theater Digest will end in two months. Please don't let that happen. Take time to renew your subscription today. By doing so, you will continue to receive every month theway latest in theater reviews, information on actors and directors, and up-to-date reports on newdramas and musical for the next year.I’ve attached an invoice for your renewal order. You will receive 12 issues for special lowprice of $35. Please send your payment in the reply envelop provided. Make any corrections to yourname or address right on the back of the invoice. Then visit our website at www.theaterdigest.comto read about contests for readers. You could win tickets to great show.Sincerely.Matthew ChambersCustomer Service RepresentativeHow often is Theater Digest published?A. Once a monthB. Every two monthsC. Twice a yearD. Once a year
救生艇下水每隔三个月进行一次。（）A、Lifeboat launching is operated at intervals of three months.B、Lifeboat launching is operated at intervals for three months.C、Fire drill is carried out once a month.D、Don’t operate two or more hatch covers at the same time.
Which of the following is an environmental server maintenance task that should be performed every three months?（）A、Replace the rubber mats in the server roomB、Clean the servers to limit dust buildupC、Wash the outside of the serversD、Replace the server fans
Which of the following are good examples of malware prevention in Windows XP?（） (Select TWO)A、Use a trusted aggressive pop-up blocker.B、Update the anti-spyware software after scanning the system.C、Re-install the operating system every six months.D、Avoid notorious websites and hyperlinks.E、Open and then scan all attachments in emails.
By default what is the interval for synchronization of the wallet with the IMS Server？（）A、once a dayB、once a weekC、every minuteD、every 30 minutes
单选题Inflatable liferafts shall be serviced at an approved servicing facility every 12 months or not later than the next vessel inspection for certification. However，the total elapsed time between servicing cannot exceed（）.A12 monthsB15 monthsC17 monthsD18 months
单选题Each lifeboat must be lowered and maneuvered in the water at least once every（）.A2 monthsB3 monthsC4 monthsD5 months
单选题Every oil tanker operating with dedicated clean ballast tanks shall be（）with a Dedicated Clean Ballast Tank Operation Manual detailing the system and specifying operational procedures.AcompliedBrepliedCdividedDprovided
单选题A lifeboat is weight tested by lowering to near the waterand loading to capacity with weight evenly distributed. Itis then lowered into the water and released. This test mustbe done at least once every（）.A6 monthsB12 monthsC18 monthsD24 months
单选题There will usually be summaries or daily account tables for heavy oil, diesel oil, lubricating oil, and fresh water, which will be compiled（）Aat the beginning of every watchBat the beginning of the first watch every dayCat the completion of every watchDat noon every day
单选题To ensure the safety in operating hatch covers, oil the moving parts （）.AmonthlyBevery three monthsConce monthlyDevery two months
单选题Cargo vessels being navigated，and fitted with emergency lighting and power systems，shall have their emergency systems tested at least once（）.Aa monthBin each weekCin every 6 monthsDin every 12 months
单选题A 200-meter vessel restricted in her ability to maneuver，at anchor，will sound a fog signal of（）.Aa 5 second ringing of a bell forward and a 5 second sounding of a gong aft at intervals of 1 minuteBone prolonged followed by two short blasts every 2 minutesCone prolonged followed by three short blasts every minuteDone prolonged followed by three short blasts every 2 minutes
单选题On a ship，firefighting equipment must be inspected once every（）.Athree monthsBsix monthsCtwelve monthsDeighteen months
单选题（）of the following need not be entered in the official logbook?AThe testing of the internal combustion engine driven emergency generator at least once each month the vessel is navigatedBThe testing of storage betteries for emergency lighting and systems once each 6 months the vessels is navigatedCThe actual draft when the vessel arrives in salt water after department a portDThe testing of the line-throwing appliance once every 3 months
单选题An emergency generator, driven by an internal combustion engine, shall be tested under load for a minimum of 2 hours at least once every （）AweekB2 weeksCmonthD3 months
单选题Shipboard Oil Pollution Emergency Plans must be reviewed（）.Aannually by the owner，with a letter submitted six months before expirationBonly once every five years，with a letter submitted six months before expirationCand the entire plan resubmitted for approval once every five years，six months before expirationDannually by the owner，with a letter submitted to the Coast Guard within one month of the anniversary date of the plan approval
多选题Which of the following are good examples of malware prevention in Windows XP?（） (Select TWO)AUse a trusted aggressive pop-up blocker.BUpdate the anti-spyware software after scanning the system.CRe-install the operating system every six months.DAvoid notorious websites and hyperlinks.EOpen and then scan all attachments in emails.
单选题Coast Guard regulations require a shipboard Oil Pollution Emergency Plan to be reviewed（）.AannuallyBonce every two yearsConce every four yearsDonce every five years