单选题What will cause the ARPA to emit a visual alarm，audible alarm，or both?（）A An acquired target entering into a guard zoneB A tracked target lost for one radar scanC A tracked target entering your preset CPA-TCPA limitsD A target being initially detected

Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an _____.

A.over-speed trip

B.audible/visual alarm

C.the ships/boats general alarm

D.reserve oil storage tank

A. Dual Visual Interface

B. Display Vertical Interface

C. Digital Visual Interface

D. Digital Vision Interchange

What did the guards do when Peter started gathering the money?

A．They let him do what he wanted to.

B．They called the police.

C．They helped him find large bills.

D．They pressed the alarm.

What can cause a lack of oxygen in a chain locker ________．

A.Absorption

B.Osmosis

C.Evaporation

D.Oxidation

A feedback is an input ____

A.which governs the state of a variable

B.which provides a visual and audible alarm

C.which indicates values of controlled variables

D.which measures the state of the controlled variable

What alarm is NOT found on an inert gas system ________．

A.Low oxygen alarm

B.Low pressure alarm

C.Scrubber high water level alarm

D.Deck seal low water alarm

8．—__________ behind the chair?

—My alarm clock．

A． What ’s

B． Where’s ．

C． Who’s

D． Where are

Your ARPA has two guard zones．What is the purpose of the inner guard zone ________．

A.Alert the watch officer that a vessel is approaching the preset CPA limit

B.Warn of small targets that are initially detected closer than the outer guard zone

C.Guard against target loss during critical maneuvering situations

D.Sound an alarm for targets first detected within the zone