Preparing for the Boilermaker Trade

Transcription

1 Preparing for the Boilermaker Trade Sue Grecki Teresa Phillips

2 Library and Archives Canada Cataloguing in Publication Grecki, Sue, 1956 Preparing for the boilermaker trade / Sue Grecki, Teresa Phillips. ISBN Numeracy. 2. Workplace literacy. 3. Boiler-makers--Training of. 4. Mathematics-- Problems, exercises, etc. I. Phillips, Teresa, II. SkillPlan (Program) III. Title. QA G C X Copyright 2012 To order copies of this publication, please contact: SkillPlan - BC Construction Industry Skills Improvement Council Suite 405, 3701 Hastings Street Burnaby, BC, V5C 2H6 Order online: This material is intended for individual use. The price of this publication is below market value to make it affordable for individual apprentices and to encourage purchase of class sets. No part of this material may be reproduced, repackaged or used for any commercial purpose or sold by any organization without permission in writing from SkillPlan.

3 About SkillPlan SkillPlan, a joint labour and management initiative of the BC construction industry, was established as a not-for-profit society in March The Council is the industry s response to an evolving workplace that requires greater writing, numeracy, problem solving and oral communication skills. SkillPlan believes that a solid foundation of these skills are part of an adult s life not only at work but in their unions and the wider community. SkillPlan s Workplace Educators are privileged to tutor hundreds of building trades apprentices and interact with technical instructors, training coordinators and the contractors who employ them. SkillPlan publications are dependent on this network to accurately reflect the Essential Skills needed on the job. Our thanks are extended to those organizations who allowed us to reprint their materials. i

4 ii

5 Contents Introduction... v Section 1: Math Foundations Using Your Calculator... 1 Whole Numbers... 2 Decimals... 5 Fractions... 9 Ratio/Proportion...15 Percent...18 Averages...25 Measurement...26 Perimeter...41 Area...44 Volume...46 Estimating Weight Loads...49 Complex Shapes...52 Pythagorean Theorem...58 Answer Key...61 Section 2: Word Problems Using a Strategy to Solve Word Problems...82 Answer Key...89 Section 3: Problem Sets Problem Set 1: Chain Slings...92 Problem Set 2: Atmospheric Hazards...94 Problem Set 3: Hydrogen Sulphide MSDS...97 Problem Set 4: Personal Fall Protection Problem Set 5: Hazardous Process Chemicals in Pulp Processing Problem Set 6: Boiler Air Flow Answer Key iii

6 iv

7 Introduction Introduction Who Should Use This Publication? If you are interested in entering a Boilermaker apprenticeship and want to practice your skills in Reading, Document Use and Numeracy, then this workbook is for you. The purpose of this publication is to give you a quick review of these three Essential Skills. What are Essential Skills? Essential Skills are skills that allow workers in every occupation to get the job done. They are not technical skills but the foundation or underlying skills people need to acquire knowledge and complete workplace tasks and daily activities. The nine Essential Skills are Reading, Document Use, Numeracy, Writing, Oral Communication, Working with Others, Thinking Skills, Computer Use and Continuous Learning. What Skills Does This Publication Cover? Preparing for the Boilermaker Trade provides practice using Reading, Document Use and Numeracy skills for typical applications in Boilermaking. This publication will help you to successfully prepare for trade assessments which are part of intake requirements for further training. The Ironworkers Local 97 Apprenticeship and Training Society (DBA - Trade Improvement Committee) was established through the collective agreement process to provide training and skills upgrading to Local 97 members. The Trade Improvement Coordinator, on behalf of the Society, is responsible for recruitment of apprentices and trainees and for provision of trade counselling from intake to completion of registered apprenticeships. The Society also assists in the development, design and validation of new programs and curriculum, and participates in provincial and national committees that set standards for the Ironworker trade. The purpose of the Ironworkers Local 97 Apprenticeship and Training Society is to develop and promote apprenticeship and training of Ironworkers within British Columbia. This assessment is intended to gauge the readiness of candidates for a registered apprenticeship. By participating in this process, candidates gain an awareness of expectations for the trade and have an opportunity to prepare for technical training. The Society is committed to the successful completion of every indentured apprentice in their programs. Copyright 2011 Boilermakers Apprenticeship and Training Society????????????????? Burnaby, BC V5C 3W5 >>>>>>>>>>>>>, Trade Improvement Coordinator For example, in one jurisdiction you may be asked to write the Boilermaker Trade Assessment. This assessment, like many others, does not require specific background knowledge about the boilermaker trade. No part of this assessment BOILERMAKER may be reproduced or used by any person other than the owner s representative. Trade Assessment SkillPlan, the BC Construction Industry Skills Improvement Council, in collaboration with the Boilermakers Apprenticeship and Training Society, designed Name:_ this assessment. For more information about the companion publication, _ Date:_ Preparing for the Boilermakers Trade visit BTA-1 After you have completed Preparing for the Boilermaker Trade, you are ready to write most assessment tests. If you need more practice, go to Publications at Measurement and Calculation for the Trades is a helpful resource. v

8 Introduction Reading Reading means reading material that is in the form of sentences and paragraphs. Some examples of Reading are memos, bulletins, textbooks, detailed work orders, reports, journals and manuals. Different trades use specialized trade terms, vocabulary and jargon which makes the reading boilermakers are required to do more complex. Boilermakers: read brief summaries of toolbox safety meetings to review the issues discussed. read Material Safety Data sheets (MSDS) to locate information about the safe handling of a substance. read reference books (e.g. IPT s Metal Trades Handbook) to review technical procedures, mathematical explanations, first aid instructions, and safety guidelines. The following box is an example of the kind of text a boilermaker might have to read on the job or during technical training. PERSONAL FALL PROTECTION below the work must include an adequate fixed support; the harness must be connected to it via a lifeline, or via a lanyard and a lifeline must prevent a falling worker from hitting the ground or any object or level below the work must not subject a falling worker to a peak fall-arrest force greater than 8 kilonewtons. The construction regulation (O. Reg. 213/91) requires that all fall protection equipment must be inspected for damage, wear, and obvious defects by a competent worker before each use any worker required to use fall protection must be trained in its safe use and proper maintenance. Any defective component should be replaced by one that meets or exceeds the manufacturer s minimum performance standards for that particular system. The regulation also requires that any fall-arrest system involved in a fall be removed from service until the manufacturer certifies all components safe for reuse. For any worker receiving instruction in fall protection, the manufacturer s instructions for each piece of equipment should be carefully reviewed, with particular attention to warnings and limitations. Components minimum load capacity. In practical terms, anchorage should be strong enough to support the weight of a small car (about 3600 pounds). Lifelines There are three basic types of lifelines: 1) vertical 2) horizontal 3) retractable. All lifelines must be inspected daily to ensure that they are - free of cuts, burns, frayed strands, abrasions, and other defects or signs of damage - free of discolouration and brittleness indicating heat or chemical exposure. 1) Vertical Lifelines Vertical lifelines must comply with the current edition of the applicable CSA standard and the following minimum requirements: - Only one person at a time may use a vertical lifeline. - A vertical lifeline must reach the ground or a level above ground where the worker can safely exit. - A vertical lifeline must have a positive stop to prevent the rope grab from running off the end of the lifeline. Vertical lifelines are typically 16-millimetre (5/8-inch) synthetic rope (polypropylene blends). Infrastructure Health & Safety Association. Reprinted with permission. vi

9 Document Use Introduction Document Use tasks involve different information displays. Words, numbers and icons are given meaning by their spatial arrangement. Some examples of Document Use are reading prints, drawings, signs, labels, lists and tables. Boilermakers: read tables showing the weights and sizes of steel bars to locate a specific bar size. interpret American Welding Society standard welding symbols on blueprints to identify the recommended welding technique. interpret blueprints to determine what tasks must be completed and to review material lists. The following box is an example of the kind of document a boilermaker might refer to on the job or during technical training. Precipitator Scrubber Air Heater ITP Publishing & Training Ltd. Reprinted with permission. vii

10 Introduction Numeracy Numeracy refers to using numbers and thinking in quantitative terms on the job and during technical training. On the job, math is used to solve problems that get the work done accurately the first time. Boilermakers: compare pressure gauge readings to stated norms to determine whether pressure adjustments must be made. calculate the Working Load Limit for a variety of wire and fibre rope types using a formula to determine which size and type of rope to use when hoisting a load. use geometry, such as bisecting angles and constructing a circle from chords, to lay out materials for pressure vessels. estimate the load weight to ensure safe rigging operations are being used. The following box is an example of a document a boilermaker uses to estimate the weight of the load on the sling legs. Chain Size (inches) Single Vertical Hitch Chain Slings Grade A (8) Alloy Steel Single Choker Hitch Working Load Limit (WLL) in Pounds Single Basket Hitch (Vertical Legs) 2-Leg Bridle Hitch & Single Basket Hitch with Legs Inclined Sling Angle ,800 2,100 5,600 4,850 3,959 2,800 5,680 4,260 11,360 9,838 8,032 5,680 9,600 7,200 19,200 16,627 13,574 9,600 14,480 10,860 28,960 25,079 20,475 14,480 22,640 16,980 45,280 39,212 32,013 22,640 27,360 20,520 54,720 47,388 38,687 27,360 viii

11 Introduction How is Preparing for the Boilermaker Trade Organized? There are three sections in Preparing for the Boilermaker Trade. Each section is followed by an Answer Key for that section. Section 1: Math Foundations Section 1 provides a review of basic math foundations and examples of whole numbers, decimals, fractions, ratio/proportion, percent, averages, measurement, perimeter, area, volume, estimating weight loads and Pythagorean Theorem that you will need during technical training and on the job. There are practice questions for each topic. The Answer Key gives step by step solutions. The material in this section provides practice of skills that you may have forgotten because you have not used them in a long time. You may need to refer to other resources to relearn some topics. Section 2: Word Problems Section 2 demonstrates how to solve word problems. A strategy for locating information and rearranging numbers to set up the problem is included. Practice questions are provided. The Answer Key gives step by step solutions. Section 3: Problem Sets Section 3 provides practice in Reading, Document Use, and Numeracy. Questions are grouped with documents you might encounter during technical training or in a work situation. All the information needed to answer the questions can be located in the document provided. The Answer Key is included at the end of the section. ix