- Measure the properties of bodies of water, such as water levels, volume, and flow.
Occupations with related tasks Save Table: XLSX CSV
- Read draft markings to determine depths of vessels in water.
- Measure vessels' holds and depths of fuel and water in tanks, using sounding lines and tape measures.
- Measure heights and widths of loads to ensure they will pass over bridges or through tunnels on scheduled routes.
- Calculate gross and net tonnage, hold capacities, volumes of stored fuel and water, cargo weights, and vessel stability factors, using mathematical formulas.
- Prepare and submit reports after completion of freight shipments.
- Inspect shipments to ensure that freight is securely braced and blocked.
- Record details about freight conditions, handling of freight, and any problems encountered.
- Advise crews in techniques of stowing dangerous and heavy cargo.
- Observe loading of freight to ensure that crews comply with procedures.
- Recommend remedial procedures to correct any violations found during inspections.
- Inspect loaded cargo, cargo lashed to decks or in storage facilities, and cargo handling devices to determine compliance with health and safety regulations and need for maintenance.
- Notify workers of any special treatment required for shipments.
- Direct crews to reload freight or to insert additional bracing or packing as necessary.
- Check temperatures and humidities of shipping and storage areas to ensure that they are at appropriate levels to protect cargo.
- Determine cargo transportation capabilities by reading documents that set forth cargo loading and securing procedures, capacities, and stability factors.
- Issue certificates of compliance for vessels without violations.
- Write certificates of admeasurement that list details such as designs, lengths, depths, and breadths of vessels, and methods of propulsion.
- Post warning signs on vehicles containing explosives or flammable or radioactive materials.
- Time rolls of ships, using stopwatches.
- Determine types of licenses and safety equipment required, and compute applicable fees such as tolls and wharfage fees.
- Visually inspect cargo for damage upon arrival or discharge.
- Read draft markings to determine depths of vessels in water.
- Measure vessels' holds and depths of fuel and water in tanks, using sounding lines and tape measures.
- Measure heights and widths of loads to ensure they will pass over bridges or through tunnels on scheduled routes.
- Calculate gross and net tonnage, hold capacities, volumes of stored fuel and water, cargo weights, and vessel stability factors, using mathematical formulas.
- Lower gauge rods into tanks or read meters to verify contents, temperatures, and volumes of liquid loads.
- Perform general warehouse activities, such as opening containers and crates, filling warehouse orders, assisting in taking inventory, and weighing and checking materials.
- Seal outlet valves on tank cars, barges, and trucks.
- Verify tank car, barge, or truck load numbers to ensure car placement accuracy based on written or verbal instructions.
- Start pumps and adjust valves or cables to regulate the flow of products to vessels, using knowledge of loading procedures.
- Check conditions and weights of vessels to ensure cleanliness and compliance with loading procedures.
- Observe positions of cars passing loading spouts, and swing spouts into the correct positions at the appropriate times.
- Monitor product movement to and from storage tanks, coordinating activities with other workers to ensure constant product flow.
- Operate ship loading and unloading equipment, conveyors, hoists, and other specialized material handling equipment such as railroad tank car unloading equipment.
- Record operating data such as products and quantities pumped, gauge readings, and operating times, manually or using computers.
- Operate industrial trucks, tractors, loaders, and other equipment to transport materials to and from transportation vehicles and loading docks, and to store and retrieve materials in warehouses.
- Connect ground cables to carry off static electricity when unloading tanker cars.
- Copy and attach load specifications to loaded tanks.
- Remove and replace tank car dome caps, or direct other workers in their removal and replacement.
- Test samples for specific gravity, using hydrometers, or send samples to laboratories for testing.
- Test vessels for leaks, damage, and defects, and repair or replace defective parts as necessary.
- Unload cars containing liquids by connecting hoses to outlet plugs and pumping compressed air into cars to force liquids into storage tanks.
- Clean interiors of tank cars or tank trucks, using mechanical spray nozzles.
- Operate conveyors and equipment to transfer grain or other materials from transportation vehicles.
- Lower gauge rods into tanks or read meters to verify contents, temperatures, and volumes of liquid loads.
- Perform general warehouse activities, such as opening containers and crates, filling warehouse orders, assisting in taking inventory, and weighing and checking materials.
- Tend vessels that store substances such as gases, liquids, slurries, or powdered materials, checking levels of substances by using calibrated rods or by reading mercury gauges and tank charts.
- Monitor gauges and flowmeters and inspect equipment to ensure that tank levels, temperatures, chemical amounts, and pressures are at specified levels, reporting abnormalities as necessary.
- Record operating data such as products and quantities pumped, stocks used, gauging results, and operating times.
- Plan movement of products through lines to processing, storage, and shipping units, using knowledge of interconnections and capacities of pipelines, valve manifolds, pumps, and tankage.
- Turn valves and start pumps to start or regulate flows of substances such as gases, liquids, slurries, or powdered materials.
- Communicate with other workers, using signals, radios, or telephones, to start and stop flows of materials or substances.
- Connect hoses and pipelines to pumps and vessels prior to material transfer, using hand tools.
- Clean, lubricate, and repair pumps and vessels, using hand tools and equipment.
- Read operating schedules or instructions or receive verbal orders to determine amounts to be pumped.
- Test materials and solutions, using testing equipment.
- Tend auxiliary equipment such as water treatment and refrigeration units, and heat exchangers.
- Add chemicals and solutions to tanks to ensure that specifications are met.
- Collect and deliver sample solutions for laboratory analysis.
- Pump two or more materials into one tank to blend mixtures.
- Tend vessels that store substances such as gases, liquids, slurries, or powdered materials, checking levels of substances by using calibrated rods or by reading mercury gauges and tank charts.
- Check tire pressure and levels of fuel, motor oil, transmission, radiator, battery, or other fluids, adding air or fluids as required.
- Collect cash payments from customers, and make change or charge purchases to customers' credit cards, providing customers with receipts.
- Perform minor repairs, such as adjusting brakes, replacing spark plugs, or changing engine oil or filters.
- Clean parking areas, offices, restrooms, or equipment, and remove trash.
- Order stock, and price and shelve incoming goods.
- Sell and install accessories, such as batteries, windshield wiper blades, fan belts, bulbs, or headlamps.
- Grease and lubricate vehicles or specified units, such as springs, universal joints, or steering knuckles, using grease guns or spray lubricants.
- Rotate, test, and repair or replace tires.
- Prepare daily reports of fuel, oil, and accessory sales.
- Clean windshields.
- Activate fuel pumps and fill fuel tanks of vehicles with gasoline or diesel fuel to specified levels.
- Test and charge batteries.
- Maintain customer records and follow up periodically with telephone, mail, or personal reminders of services due.
- Provide customers with information about local roads or highways.
- Operate car washes.
- Check tire pressure and levels of fuel, motor oil, transmission, radiator, battery, or other fluids, adding air or fluids as required.
- Inspect vehicles and check gas, oil, and water levels prior to departure.
- Drive vehicles over specified routes or to specified destinations according to time schedules, complying with traffic regulations to ensure that passengers have a smooth and safe ride.
- Park vehicles at loading areas so that passengers can board.
- Announce stops to passengers.
- Assist passengers, such as elderly or disabled individuals, on and off bus, ensure they are seated properly, help carry baggage, and answer questions about bus schedules or routes.
- Collect tickets or cash fares from passengers.
- Handle passenger emergencies or disruptions.
- Report delays or accidents.
- Advise passengers to be seated and orderly while on vehicles.
- Regulate heating, lighting, and ventilating systems for passenger comfort.
- Record information, such as cash receipts and ticket fares, and maintain log book.
- Maintain cleanliness of bus or motor coach.
- Read maps to plan bus routes.
- Load and unload baggage in baggage compartments.
- Make minor repairs to vehicle and change tires.
- Inspect vehicles and check gas, oil, and water levels prior to departure.
- Take depth soundings in turning basins.
- Operate engine throttles and steering mechanisms to guide boats on desired courses.
- Direct safety operations in emergency situations.
- Secure boats to docks with mooring lines, and cast off lines to enable departure.
- Maintain desired courses, using compasses or electronic navigational aids.
- Organize and direct the activities of crew members.
- Follow safety procedures to ensure the protection of passengers, cargo, and vessels.
- Maintain equipment such as range markers, fire extinguishers, boat fenders, lines, pumps, and fittings.
- Report any observed navigational hazards to authorities.
- Oversee operation of vessels used for carrying passengers, motor vehicles, or goods across rivers, harbors, lakes, and coastal waters.
- Service motors by performing tasks such as changing oil and lubricating parts.
- Arrange repairs, fuel, and supplies for vessels.
- Issue directions for loading, unloading, and seating in boats.
- Clean boats and repair hulls and superstructures, using hand tools, paint, and brushes.
- Tow, push, or guide other boats, barges, logs, or rafts.
- Perform general labor duties such as repairing booms.
- Position booms around docked ships.
- Take depth soundings in turning basins.
- Observe water levels and oil, air, and steam pressure gauges to ensure proper operation of equipment.
- Observe and respond to wayside and cab signals, including color light signals, position signals, torpedoes, flags, and hot box detectors.
- Inspect engines before and after use to ensure proper operation.
- Apply and release hand brakes.
- Signal crew members for movement of engines or trains, using lanterns, hand signals, radios, or telephones.
- Confer with conductors and other workers via radiotelephones or computers to exchange switching information.
- Inspect track for defects such as broken rails and switch malfunctions.
- Couple and uncouple air hoses and electrical connections between cars.
- Drive engines within railroad yards or other establishments to couple, uncouple, or switch railroad cars.
- Inspect the condition of stationary trains, rolling stock, and equipment.
- Read switching instructions and daily car schedules to determine work to be performed, or receive orders from yard conductors.
- Receive, relay, and act upon instructions and inquiries from train operations and customer service center personnel.
- Spot cars for loading and unloading at customer locations.
- Operate track switches, derails, automatic switches, and retarders to change routing of train or cars.
- Report arrival and departure times, train delays, work order completion, and time on duty.
- Perform routine repair and maintenance duties.
- Drive locomotives to and from various stations in roundhouses to have locomotives cleaned, serviced, repaired, or supplied.
- Pull knuckles to open them for coupling.
- Provide assistance in aligning drawbars, using available equipment to lift, pull, or push on the drawbars.
- Ride on moving cars by holding onto grab irons and standing on ladder steps.
- Operate switching diesel engines to switch railroad cars, using remote controls.
- Record numbers of cars available, numbers of cars sent to repair stations, and types of service needed.
- Operate and control dinkey engines to transport and shunt cars at industrial or mine sites.
- Operate flatcars equipped with derricks or railcars to transport personnel or equipment.
- Provide assistance in the installation or repair of rails and ties.
- Observe water levels and oil, air, and steam pressure gauges to ensure proper operation of equipment.
- Measure depth of water in shallow or unfamiliar waters, using leadlines, and telephone or shout depth information to vessel bridges.
- Tie barges together into tow units for tugboats to handle, inspecting barges periodically during voyages and disconnecting them when destinations are reached.
- Attach hoses and operate pumps to transfer substances to and from liquid cargo tanks.
- Handle lines to moor vessels to wharfs, to tie up vessels to other vessels, or to rig towing lines.
- Read pressure and temperature gauges or displays and record data in engineering logs.
- Stand watch in ships' bows or bridge wings to look for obstructions in a ship's path or to locate navigational aids, such as buoys or lighthouses.
- Maintain government-issued certifications, as required.
- Examine machinery to verify specified pressures or lubricant flows.
- Maintain a ship's engines under the direction of the ship's engineering officers.
- Break out, rig, and stow cargo-handling gear, stationary rigging, or running gear.
- Lubricate machinery, equipment, or engine parts, such as gears, shafts, or bearings.
- Lower and man lifeboats when emergencies occur.
- Sweep, mop, and wash down decks to remove oil, dirt, and debris, using brooms, mops, brushes, and hoses.
- Splice and repair ropes, wire cables, or cordage, using marlinespikes, wire cutters, twine, and hand tools.
- Load or unload materials, vehicles, or passengers from vessels.
- Chip and clean rust spots on decks, superstructures, or sides of ships, using wire brushes and hand or air chipping machines.
- Provide engineers with assistance in repairing or adjusting machinery.
- Operate, maintain, or repair ship equipment, such as winches, cranes, derricks, or weapons system.
- Paint or varnish decks, superstructures, lifeboats, or sides of ships.
- Give directions to crew members engaged in cleaning wheelhouses or quarterdecks.
- Stand by wheels when ships are on automatic pilot, and verify accuracy of courses, using magnetic compasses.
- Steer ships under the direction of commanders or navigating officers or direct helmsmen to steer, following designated courses.
- Relay specified signals to other ships, using visual signaling devices, such as blinker lights or semaphores.
- Overhaul lifeboats or lifeboat gear and lower or raise lifeboats with winches or falls.
- Stand gangway watches to prevent unauthorized persons from boarding ships while in port.
- Record data in ships' logs, such as weather conditions or distances traveled.
- Clean and polish wood trim, brass, or other metal parts.
- Participate in shore patrols.
- Measure depth of water in shallow or unfamiliar waters, using leadlines, and telephone or shout depth information to vessel bridges.
- Measure depths of water, using depth-measuring equipment.
- Direct courses and speeds of ships, based on specialized knowledge of local winds, weather, water depths, tides, currents, and hazards.
- Prevent ships under navigational control from engaging in unsafe operations.
- Serve as a vessel's docking master upon arrival at a port or at a berth.
- Consult maps, charts, weather reports, or navigation equipment to determine and direct ship movements.
- Steer and operate vessels, using radios, depth finders, radars, lights, buoys, or lighthouses.
- Operate ship-to-shore radios to exchange information needed for ship operations.
- Dock or undock vessels, sometimes maneuvering through narrow spaces, such as locks.
- Stand watches on vessels during specified periods while vessels are under way.
- Inspect vessels to ensure efficient and safe operation of vessels and equipment and conformance to regulations.
- Read gauges to verify sufficient levels of hydraulic fluid, air pressure, or oxygen.
- Report to appropriate authorities any violations of federal or state pilotage laws.
- Provide assistance in maritime rescue operations.
- Signal passing vessels, using whistles, flashing lights, flags, or radios.
- Signal crew members or deckhands to rig tow lines, open or close gates or ramps, or pull guard chains across entries.
- Maintain boats or equipment on board, such as engines, winches, navigational systems, fire extinguishers, or life preservers.
- Maintain records of daily activities, personnel reports, ship positions and movements, ports of call, weather and sea conditions, pollution control efforts, or cargo or passenger status.
- Advise ships' masters on harbor rules and customs procedures.
- Observe loading or unloading of cargo or equipment to ensure that handling and storage are performed according to specifications.
- Calculate sightings of land, using electronic sounding devices and following contour lines on charts.
- Learn to operate new technology systems and procedures through instruction, simulators, or models.
- Direct or coordinate crew members or workers performing activities such as loading or unloading cargo, steering vessels, operating engines, or operating, maintaining, or repairing ship equipment.
- Arrange for ships to be fueled, restocked with supplies, or repaired.
- Supervise crews in cleaning or maintaining decks, superstructures, or bridges.
- Purchase supplies or equipment.
- Tow and maneuver barges or signal tugboats to tow barges to destinations.
- Perform various marine duties, such as checking for oil spills or other pollutants around ports or harbors or patrolling beaches.
- Assign watches or living quarters to crew members.
- Interview and hire crew members.
- Conduct safety drills such as man overboard or fire drills.
- Measure depths of water, using depth-measuring equipment.
