1. Pipework Required performance: –

1. Pipework
Required performance:
– Determines minimum bend radius with regard to pipe diameter, thickness, material and process to be used
– Selects pipe filters/strainers in piping systems
– Observes safety precautions
– Bends pipes, using both cold and hot techniques
– Removes bulk filler and residue
– Checks for ovality, thinning and other defects
– Anneals, normalizes or stress-relieves as necessary
2. METHODS FOR CARRYING OUT SAFE EMERGENCY/TEMPORARY REPAIRS
Required performance:
– Explains what is meant by an emergency/temporary repair
– Explains the differences between an emergency/temporary repair and a permanent repair
– Explains what should be taken into account when carrying out emergency/temporary repair
– Explains how to carry out emergency/temporary repairs in accordance with situations and materials
– Explains what sort of materials can be used for emergency/temporary repairs of piping’s
– Explains what sort of materials can be used for emergency/temporary repairs of valves
– Explains what sort of materials can be used for emergency/temporary repairs of coolers
– Explains what sort of materials can be used for emergency/temporary repairs of boiler smoke tubes
– Explains methods for emergency/temporary repairs of overboard/sea water suction valves in case of leaking.
– Explains how to replace overboard/sea water suction valves under the afloat condition

3. SAFETY MEASURES TO BE TAKEN TO ENSURE A SAFE WORKING
ENVIRONMENT AND FOR USING HAND TOOLS, MACHINE TOOLS AND
MEASURING INSTRUMENTS
Required performance:
– States that a well-organized work shop must be most effective to ensure a safe working environment and for using hand tools, machine tools and measuring instruments
– States the importance that all the tools and measuring instrument should be kept in good order and shape to avoid accidents and to ensure safety of life
– States that proper use of tools enables successful completion of the tasks
– States the importance that a careful attitude is necessary when working on any tasks
– States that first-aid box, fire extinguishers, appropriate lighting and ventilation should be in the work shop
– Describes the necessary control over the power supply to a machine tool
– Describes the basic differences between 'stop' and 'start' buttons
– Describes the purpose and siting of 'emergency stop' buttons
– Describes the situations where the following should be worn
– safety helmets
– eye protection
– protective footwear
– skin protection
– States when hands and arms should be washed with soap and water
– Describes the care necessary for hands, including for any cuts or abrasions

USE OF HAND TOOLS, MACHINE TOOLS AND MEASURING INSTRUMENTS
Required performance:
4. Hand Tools
Required performance:
– Lists hand tools usually used for fabrication and repair on board ships, showing actual hand tools such as various types of spanners,
wrenches, pliers, drivers, nippers, benders, cutters, hacksaws, vices, gear pullers, files, drills, reamers, hammers, tap and dies, brushes, anvil, swage block, punches, scrapers, chisels, scissors and chucks
– Explains and demonstrates how to use hand tools usually used for fabrication and repair
– Explains and demonstrates correct selections of specific hand tools in accordance with their purposes of use
– Among others, describes the following with regard to thread cutting:
– the purpose of taper, second and plug taps
– what governs the diameter of the hole to be drilled prior to tapping
– the difference in use of a die nut and a stock and die
– the different techniques used when cutting:
– small-diameter threads
– large-diameter and fine threads
– internal threads in open-ended and blind holes and external threads on small-and large-diameter rod
– Explains and demonstrates safety precautions necessary when using specific hand tools (Supervised Student Activity)
– Uses various hand tools to acquire the fundamental skills of using them with sample materials provided



5. Powered Hand Tools
Required performance:
– Lists powered hand tools usually used for fabrication and repairs on board ships, showing actual powered hand tools such as various types of electrical/air driven grinders, sanders, drills, impact wrenches, portable jig saw, hand shear and nibbler
– Explains and demonstrates how to use powered hand tools usually used for fabrication and repair
– Explains and demonstrates safety precautions necessary in general when using electric/air driven hand tools
– Explains and demonstrates specific difficulties and necessary precautions when using electric/air driven hand tools
– Uses various powered hand tools to acquire the fundamental skills of using them with sample materials provided

6. Machine Tools
Required performance:
6.1 Drilling machines
– Lists the uses of a drilling machine
– Explains briefly how drills are held in a machine
– Explains how a work piece is held in place, emphasizing dangerous practice and the particular problem when drilling thin plate
– Describes the procedure for inserting and removing drills with parallel and with tapered shanks
– Describes the care necessary to avoid accidents when using a drilling machine
– Uses drilling machines to acquire the fundamental skills of using them with sample materials provided

6.2 Grinding machine
Required performance:
– Explains the purpose of a grinding machine
– Explains how to use a grinding machine
– Demonstrates an awareness of the dangers which exist when using a grinding machine
– Describes the procedure to ensure safety when using a grinding machine
– Uses grinding machine to acquire the fundamental skills of using it with sample materials provided







6.3 Centre Lathe
Required performance:
– Explains the primary purpose of a centre lathe, its construction and Functions
– Explains the roles of each part, performing their functions of chucks, centres, face plates,
material removal, thread cutting and taper turning
– On a given diagram or machine, identifies the main features of a modern lathe
– On a given diagram or machine, indicates the features and dimensions which govern the capacity of a lathe
– Demonstrates an awareness of the dangers which exist when using a lathe
(Cutting tools)
Required performance:
– Explains various cutting tools in terms of materials
– Explains various cutting tools in terms of figures
– Explains various cutting tools in terms of functions
– Uses a centre lathe to acquire the fundamental skills of using it with sample materials provided
6.4 Welding and Soldering
Required performance:
a) Principles of electric arc welding
– Explains the suitability of low-, medium-and high-carbon steels for welding
– Sketches the relative positions of the electrode and the base metal when metallic arc welding manually
– States that A.C. welding is more common than D.C. welding
– Sketches the components and circuit necessary in arc welding
– Describes how welding electrodes are classified
– Describes the purpose of the electrode covering
– Explains how electrodes should be stored
– Explains how damp electrodes can be detected
– States how damp electrodes can be dried
– Identifies the tools commonly used when welding
– Describes the principle of metal arc gas-shielded welding
– Describes the principle of tungsten inert-gas welding





b) Principles of gas welding
Required performance:
– Explains the basic principles of gas welding
– Describes the principle features of a low-pressure system
– Explains what is meant by a high-pressure system
– Lists the fuel-oxygen/air mixtures
– Describes the flame produced when using oxygen and acetylene
– Explains the effect on the flame of mixing different proportions of oxygen and acetylene
– Describes the dangers of handling acetylene gas and the methods used for its storage in cylinders
– Explains why the maximum discharge rate should not be exceeded
– Identifies the safety fittings for an acetylene gas cylinder
– Compares the need for control of gas pressure for:
– welding
– cutting
– States that a two-stage gas pressure regulator gives a more precise control than a single-stage regulator
– Identifies the safety features of gas pressure gauges
– Sates that high-pressure blowpipes are unsuitable for use in a low-pressure system
– Identifies the principle parts of a high-pressure blowpipe
– Explains the care necessary for:
– blowpipe
– hoses
– Explains the purpose of hose check valves and flashback arresters
– Describes the sequence to be followed if a flashback arrester is triggered
– Explains the basic purpose of a cylinder manifold system
– Names the gas, states its approximate pressure and describes the cylinder outlet thread, given the colours of cylinders likely to be encountered
– Sketches the relative positions of the base metal, the filler wire and the welding nozzle when using:
– the leftward technique
– the rightward technique
– Demonstrates the welding procedure for both techniques in the above objective
– Explains the limitations of leftward welding
– Explains the advantage of the rightward technique


c) Welded joints in low-carbon steel
Required performance:
– Describes a butt weld
– Explains why plate edges are prepared
– Sketches cross-sections:
– of typical plate-edge preparations
– indicating the features of a good weld
– of a typical multi-run weld
– Describe a fillet weld
– Sketches cross-sections of fillet joints, showing:
– throat length with concave and convex reinforcement
– tee joint plate-edge preparations
– corner joints
– lap joint
– Makes welded butt and fillet joints, using manual electric arc and gas welding techniques

d) Common faults in welded joints
Required performance:
– Identifies the errors which can occur when lining up joints prior

ผลลัพธ์ (ไทย) 3:

1 . ท่อส่งงาน :

ต้องการและกำหนดรัศมีโค้งต่ำสุดเกี่ยวกับเส้นผ่านศูนย์กลางความหนาท่อ , วัสดุและกระบวนการที่จะใช้
–เลือกท่อกรอง / strainers ในระบบท่อและสังเกตความปลอดภัย

( โค้งท่อ ใช้ทั้งเย็นและร้อน และเอาเทคนิค
ตัวเป็นกลุ่มและการตรวจสอบสารตกค้าง
สำหรับรี ) , บางข้อบกพร่อง
anneals และอื่น ๆ ) ,ปกติหรือความเครียดบรรเทาเท่าที่จำเป็น
2 วิธีการดำเนินการซ่อมแซมชั่วคราวปลอดภัยฉุกเฉิน /
ต้องประสิทธิภาพ :
–อธิบายสิ่งที่หมายโดยฉุกเฉินชั่วคราว / ซ่อม
–อธิบายถึงความแตกต่างระหว่างฉุกเฉินชั่วคราว / ซ่อมและซ่อม
ถาวรและอธิบายถึงสิ่งที่ควรพิจารณาเมื่อดำเนินการซ่อม
ฉุกเฉินชั่วคราว