Cargo Handling. Gear. Test 3 – Online Maritime Tests

Your crane is designed for Grab Service with a hoisting load of 16 tons including grab weight. Grab weight: 8 tons, Grab cubic: 10 m3. You are going to discharge a cargo of dry minerals having a stowage factor of 0,7 - 0,8 t/m3. What will be the maximum weight of the cargo you are allowed to have in each grab?

8 tons.
7 tons.
15 tons.
16 tons.

Vessel's cranes have various safety devices and interlocks to maintain a safe and regulated operation. Several 'Bypass' switches are fitted for this purpose and these are locked by keys. During crane operations, what would be the appropriate routines in respect of these 'Bypass' switches/keys?

Keep the keys in the crane cabin in order to unlock 'Bypass' switches whenever necessary.
Keep the keys with the Duty Officer/Electrician and call one of them when 'Bypassing' is required.
Have all 'Bypass' switches unlocked in order to have a smooth and fast operation.
All the alternativs will be acceptable.

A combined vessel (wet/dry) is equipped with 2 Gantry Cranes and certified to carry HC petroleum products. Crane No.1 is dedicated for hose handling and crane No. 2 has all functions interlocked when in 'Wet cargo Mode'.The vessel is at anchor having a cargo of naphtha onboard, Chief Eng. is requesting to have one of the cranes prepared in order to take onboard spares. What will be the best crane to use?

Crane No.1
Crane No.2 if spares are going to the engine room.
None of the gantry cranes.
Any of the cranes depending on where spares are going.

The vessel's cranes are marked: 'SWL 29,5 tons x 22 M/R (including lifting beam weight 1,5 tons)'. You like to lift onboard a load of steel coils being placed on the berth. Distance from C/L of crane to the steel coils is 22 meters. What will be the maximum weight of the coils (in one lifting) in order to have a 'safe' lifting?

29,5 tons.
31,0 tons
30,0 tons.
28,0 tons

Cargo Gear/Cranes should at regular intervals be thoroughly examined and load tested by a recognised company/yard. How often should such examination/load test take place?

Annually.
Every 4th year.
Every 5th year.
Every 2 1/2 year.

Your ship is equipped with 2 different types of grabs, small and large, with cubic capacities of 5m3 and 10m3 respectively. Maximum crane load for grab service is 16 tons including grab weight. You are going to discharge a dry commodity having a stowage factor of 1,4 T/m3. What will be the suitable grab for this operation?

None of the mentioned alternatives.
Small.
Any of them.
Large.

According to regulations cranes and other lifting appliances onboard should, at regular intervals, be examined by ship's personnel and the result recorded in Cargo Gear Book. How often should such examinations take place?

Biannually.
Prior to loading/discharging.
Annually.
Every 6 months.

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