[单项选择]Before replacing a piston you should check the rings to see that all clearances and gaps are （） the permissible tolerances.
A. above
B. at
C. over
D. within

[单项选择]Before replacing a piston you should check the rings to see that all clearances and gaps are within the permissible （）.
A. deflection
B. discrepancy
C. error
D. tolerance

[单项选择]Before replacing a piston you should check that all rings are （）.
A. free
B. fastened
C. broken
D. stuck

[单项选择]Before letting the anchor go，you should check that the（）.
A. chain is clear
B. anchor is clear of obstructions
C. wildcat is disengaged
D. All of the above

[单项选择]Which publication should you check for complete information on Puget Sound weather conditions? （）
A. Sailing Directions
B. Light List
C. Coast Pilot
D. Chart of the area

[单项选择]Ship’s officers should check every cargo compartment after it is filled with bulk grain to ensure（）.
A. all lighting circuits are energized
B. all void spaces are filled
C. the correct grade of cargo has been loaded
D. the heavier grade is in the lower hold

[单项选择]

In a diesel engine, when installing new piston rings it is important to check（）
Ⅰ.ring gap clearance
Ⅱ.side clearance

A. Ⅰ only
B. Ⅱ only
C. both Ⅰ and Ⅱ
D. neither Ⅰnor Ⅱ

[单项选择]What should you do if you have transmitted a distress call a number of times on channel 16 and have received no reply?（）
A. Repeat the message using any other channel on which you might attract attention
B. Key the microphone several times before transmitting again
C. Turn up the volume on the receiver before transmitting again
D. Report the problem to the head electrician

[单项选择]When should you conduct a visual inspection of your towline? （）
A. Whenever its serviceability is in doubt
B. In accordance with the manufacturer's recommendation
C. At least once a month
D. All of the above

[单项选择]Which general weather conditions should you expect to find in a low pressure system（）.
A. Fair weather
B. Precipitation and cloudiness
C. Scattered clouds at high elevations
D. Gradual clearing and cooler temperatures

[单项选择]Which types of portable extinguisher should you watch for the reflash of the fire?（）
A. foam and water
B. CO₂ and dry chemical
C. dry chemical and water
D. foam and CO₂

[单项选择]Which emergency equipment should you keep near the towing bitts（）.
A. A self-contained breathing apparatus
B. A boat hook and a spanner wrench
C. A fire ax and/or cutting torch
D. A Stokes litter basket

[单项选择]Which command should you use to verify what networks are being routed by a given OSPF process（）
A. show ip ospf
B. show ip route
C. show ip protocol
D. show ip ospfdatabase
E. None of the other alternatives apply

[单项选择]To which switch or switches should you provide redundant links in order to achieve high availability with reliable fast convergence in the enterprise campus?（）
A. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 link
B. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 link
C. to two core switches from redundant distribution switches connected with a Layer 2 link
D. to two core switches from redundant distribution switches connected with a Layer 3 link
E. to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO

[单项选择]Which action should you take after sending a false distress alert on VHF?（）
A. Send a DSC cancellation message on Ch-70
B. Make a voice announcement to cancel the alert on Ch-16
C. Make a voice announcement to cancel the alert on Ch-13
D. Make a voice announcement to cancel the alert on Ch-22A

[单项选择]What action should you take to compensate for the abovecurrent?（）
A. Continue on the same course and speed
B. Alter your course to the right
C. Slow to 8.5 knots
D. Alter your course to the left

[单项选择]How should you signal the crane operator to lower the boom and raise the load?（）.
A. Extend arm and point finger in the direction to move the boom
B. Extend arm with the thumb pointing downward and flex fingers in and out
C. With f rearm vertical and forefinger pointing up,move hand in small horizond circles
D. With arm extended downwards and forefinger pointing down,move hand in small horizontal circles

[单项选择]How should you signal the crane operator to raise the boom?（）.
A. Extend arm with the thumb pointing up and flex the fingers in and out
B. Place both fists in front of the body with the thumbs pointing upward
C. With forearm vertical and forefinger pointing up,move hand in small horizond circles
D. Extend arm with the fingers closed and thumb upward