Technical Communication (AL-301) Unit 3 Notes

How unit 3 is examined

Writing and speaking skills. Most marks: report structure, audience awareness, letters.

Traits of Technical Writing

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Definition. <mark>Technical writing is factual, audience-oriented writing that conveys specialised information clearly, concisely and accurately so that the reader can understand or act on it.</mark> Business writing is workplace writing (letters, memos, proposals).

Role of language. Language is the only medium that carries specialised facts to the reader, so it must be precise and free of ambiguity. Its functions are to inform (a report), instruct (a manual), record (minutes) and persuade (a proposal). Standard terms, SI units and symbols (kW, MPa) give every reader the same meaning. Example: "tighten the bolt firmly" is ambiguous, while "tighten the bolt to 25 N·m" is precise and can be checked.

Key points.

Clarity: one meaning only, in simple words and short sentences.
Conciseness: no padding; every word must earn its place.
Accuracy: facts, figures, units and terms must be correct and verifiable.
Objectivity: an impersonal, evidence-based tone. Subjective: "The pump works very well"; objective: "The pump delivered 40 L/min at 2 bar".
Audience orientation: the detail and terminology match what the reader already knows.
Comprehensiveness and structure: all needed information, arranged with headings, lists and visuals, in a formal tone.
Technical writing is specialist, data-heavy and impersonal (a manual, a test report); business writing is shorter, courteous and aimed at a decision or action (an order letter, a memo).

Answer frame. Define both; give the role of language with the torque example; then traits 1-6; close with the contrast (7), the 7 Cs and ethical honesty.

Asked: [7 marks] (Jun 2024, Dec 2025) Describe the traits and principles of effective technical and business writing. Asked: [7 marks] (Jun 2024) What is the role of language in technical writing? Write the characteristics of technical writing. Asked: [7 marks] (Nov 2022) What are the traits of technical writing? And what are the principles of business writing?

Principles of Business Writing

Definition. <mark>Business writing is purposeful, reader-centred workplace writing guided by the 7 Cs.</mark>

Key points.

The 7 Cs: Clarity (one meaning, plain words); Conciseness (no padding: "now", not "at this point in time"); Correctness (right facts, grammar and figures); Concreteness (exact data: "on 5 June", not "soon"); Consideration (the reader's view: "you will receive", not "we have sent"); Courtesy (polite: "please send", not "send immediately"); Completeness (all facts the reader needs to act).
Clarity avoids misinterpretation, saves the reader's time and ensures compliance, since readers follow what they understand.
Achieve it with simple words, no jargon, one idea per sentence, the active voice ("The manager approved the plan"), and one topic per paragraph under clear headings and lists.
Before: "It is requested that the needful may kindly be done at the earliest regarding the machine." After: "Please repair Machine 3 by Friday, 10 May."
The tone is polite, positive and free of slang; ethics means honesty and credit for others' work.

Asked: [7 marks] (Dec 2024) Why is clarity important in business writing, and how can writers achieve it?

Style of Writing

Definition. <mark>Style is the way a writer chooses words, sentence patterns and tone to suit purpose and reader; technical style is objective, concise and precise.</mark>

Key points.

Expository style explains concepts or data, as in reports ("A transformer transfers energy between circuits by induction").
Descriptive style describes a mechanism, product or place part by part ("The laptop has a 14-inch screen").
Persuasive style convinces the reader, as in proposals ("We recommend solar panels, which repay their cost quickly").
Instructional style gives numbered imperative steps, as in manuals ("Switch off the power, then remove the cover").
Common attributes: impersonal, exact terms, a formal and ethical tone; active voice for a known doer ("The team tested the pump"), passive for an unimportant one ("The pump was tested at 5 bar").

Answer frame. Define style; take the four styles in order with use and example; close with the shared attributes.

Asked: [7 marks] (Dec 2023, Dec 2024) What are the (different) styles of writing in technical communication? Explain.

Writing Memos

Definition. <mark>A memorandum is a brief internal written communication used within an organisation; a memo has no salutation or complimentary close.</mark> Purposes: announce, instruct, request, remind and seek explanation.

Key points. Characteristics: brief, one subject only, direct and factual. Layout: MEMORANDUM; reference number; TO, FROM, DATE, SUBJECT; the body; the sender's initials instead of a signature; a CC line for copies.

Example (Dec 2023).

ABC LTD                MEMORANDUM          Ref: ABC/MD/2023/112
TO: Customer Relations Officer   FROM: Managing Director
DATE: 12 December 2023
SUBJECT: Failure to attend to a customer complaint
A complaint from Mr R. Sharma (ref. 231), received on 2 December
2023, has been pending for ten days without action. This harms
our reputation. Explain the delay in writing by 15 December
2023 and resolve the complaint immediately. Failure to act
will be recorded.                                       R.K.M.
CC: General Manager (Customer Service)

Asked: [7 marks] (Dec 2023) What is a memo? For what purpose are memos used? As managing director of ABC Ltd, draft a memo to the customer relations officer for not attending to a customer complaint.

Letters

Definition. <mark>A formal (business) letter is a written, structured message sent outside the organisation, following a fixed layout to enquire, order, complain or apply.</mark>

Key points.

Sender's address and date, then the receiver's designation and address.
Subject line and salutation ("Dear Sir/Madam").
The body gives the purpose, the details and a closing that invites action.
Complimentary close ("Yours faithfully"), signature, name and designation; "Enclosures" if any.
Tone is courteous and concise, one paragraph per idea, with no labels such as "Opening" inside the letter.
Do not invent facts (quotation numbers, prices): use the question's details or placeholders such as [date] and Rs [amount].

Example 1: order letter (14 marks).

XYZ Institute of Technology, [Address], Bhopal     [Date]
Ref: XYZ/PUR/[number]
The Sales Manager, Dell Technologies India Pvt. Ltd.
[Street address], Bengaluru - [PIN code]
Subject: Order for 200 desktop computers
Dear Sir/Madam,
With reference to your quotation no. [Q-number] dated [date],
we are pleased to place an order for the following:
Item: Dell OptiPlex desktop (model as quoted)     Qty: 200
Specification: Intel Core i7 (latest generation), 16 GB RAM,
  512 GB SSD, 4 GB graphics card, Wi-Fi and Gigabit LAN,
  Windows 11 Pro, 24-inch LED monitor, USB keyboard and mouse
Rate: Rs [rate] per unit        Amount: 200 x Rs [rate]
GST @ 18%: Rs [amount]          Total order value: Rs [total]
Item: 1 kVA UPS                                    Qty: 200
Terms and conditions:
1. Delivery within 30 days to our campus by road
   transport, insured at your cost.
2. Free installation and a 3-year on-site warranty.
3. Payment by cheque/NEFT within 15 days of installation.
4. Penalty of 1% per week of delay; order may be cancelled
   if over 15 days late. Defective units replaced free.
5. Invoice in duplicate in the name of XYZ Institute.
Kindly acknowledge and confirm the order.
Yours faithfully,
(Signature)
R. K. Verma, Purchase Officer

Example 2: enquiry letter (7 marks).

[Sender's address]                                [Date]
The Director, ABC Institute of Technology
[Street address], [City] - [PIN code]
Subject: Enquiry about the Computer Hardware course
Dear Sir/Madam,
I have completed a diploma in electronics and wish to build
a career in computer hardware and networking. Your institute
is known for its practical training and placement record,
so I wish to join your Computer Hardware course, preferably
in a weekend (or regular offline) batch.
Kindly send details of:
1. duration, fees and eligibility;  2. syllabus and certification;
3. hands-on lab and practical training; 4. hostel facility;
5. placement support;  6. next batch and last date of admission.
Please also send the prospectus and admission form.
Thanking you,
Yours faithfully,
(Signature) [Name]

Answer frame. Heading, subject, salutation; body (order: reference, items with rates and total, terms; enquiry: background, numbered queries, prospectus); close and signature.

Pitfall: Missing subject line, date or complimentary close loses format marks.

Asked: [14 marks] (Jun 2024) Write a letter to the DELL Company placing order for the supply of Two Hundred computers with latest features. Asked: [7 marks] (Jun 2025) You are interested in pursuing a course in Computer Hardware. Write a letter seeking information about the same.

Reports and Types of Technical Reports

Definition. <mark>A report is an organised, factual account of an event, investigation or work, written for a specific reader who must act on it.</mark> Informational reports present facts; analytical reports analyse them and recommend. Formal reports are long, with full front and back matter; informal reports are short memo or letter reports. Types:

A feasibility report judges whether a project is practicable (go or no-go).
A progress report tells management how much is done against schedule and budget; a periodic (routine) report is sent at fixed intervals, such as a monthly production report.
A research (investigation) report studies a problem in depth, with findings and recommendations.
An inspection report records the condition of equipment or a site, with defects found; a laboratory report records aim, apparatus, procedure, observations and result.
A project report documents a completed project; an incident report states what happened, where, when, the cause, the loss and the action taken.

Example (Dec 2024): newspaper report of an incident witnessed.

FIRE GUTS [number] HUTS IN SLUM NEAR [COLONY]
By [Name], Staff Reporter
[City], [date]: A fire broke out in the slum near [colony] at
about [time] on Saturday night. I saw flames spread from hut
to hut as residents ran out with children.
Cause: a short circuit / cylinder blast is suspected.
Response: three fire tenders put out the fire in two hours;
police cordoned the area. Ambulances took [number] injured to
the district hospital, where they were treated for burns.
Relief: the administration set up a camp with food, clothing
and blankets and announced ex-gratia relief of Rs [amount]
per family; NGOs gave medicines and utensils.
Impact: [number] families lost homes, ration cards, Aadhaar
cards and school books; children's studies are disrupted.
Stagnant water and debris pose a risk of disease.
Recommendations: safe wiring, hydrants, document camps.

Pitfall: For numbers the question does not give, write [number]; never invent figures. Use one addressee ("To the Collector") or the newspaper format shown.

Asked: [7 marks] (Dec 2024) You observed a fire accident in a slum area near your colony on Saturday night. Write a detailed report on the accident, including cause, damages, response from authorities and impact on the affected community.

Characteristics, Format and Structure of Technical Reports

Definition. <mark>A technical report is a formal, factual document that presents the results of an investigation or project, with conclusions and recommendations, to a reader who has to decide or act.</mark>

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Key points.

Characteristics: factual, objective, clear, concise, formal and impersonal.
It is accurate and complete, with all data the reader needs.
Format: decimal headings (1, 1.1, 1.1.1), margins of about 1 inch (2.5 cm), 12 pt text, numbered and captioned figures and tables (Figure 1, Table 1).
Front matter: title page (title, author, recipient, date, report number) identifies the report; the transmittal letter hands it to the reader with purpose and scope; contents helps navigation; the abstract or executive summary (150-250 words) gives purpose, method, findings and recommendations to a busy reader. Optional: preface, acknowledgement (thanks helpers), list of figures, list of abbreviations.
Main body: introduction (purpose and scope), methodology (how data were obtained), findings (data and discussion), conclusions (what the findings mean), recommendations (what to do).
Back matter: references credit sources, appendices hold raw data and long calculations, and the glossary explains terms.
Tense: past for methods and findings ("The samples were tested"); present for general facts and conclusions ("The design is feasible").

Answer frame. Define; draw the tree; develop points 1-3, then 4-6 with each element's purpose; for "types" add the previous topic's list; close that the format makes the report easy to act on.

Asked: [7 marks] (Nov 2022, Dec 2023, Dec 2025) Explain the structure and characteristics of technical reports. Asked: [7 marks] (Nov 2022, Dec 2025) Explain format and structure of Technical Report. Asked: [7 marks] (Dec 2023) Enlist the features, types and structure and format of Technical reports.

Writing Research Papers

Definition. <mark>A technical research paper reports original research or analysis in a fixed structure so that other researchers can evaluate and reproduce it.</mark>

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Key points.

The title is short and specific; below it come the authors' names, affiliations (institute) and e-mail. The abstract is a 150-250 word summary of aim, method, results and conclusion; 4-6 keywords help indexing.
The introduction states the problem and objectives; the literature review summarises earlier work and shows the gap this paper fills.
The methodology gives materials, tools and procedure in enough detail to reproduce the work.
Results present data in tables and graphs and interpret them; the conclusion states what was found and suggests future work; acknowledgements thank funders and helpers.
References follow the journal's style: IEEE (numbered, "[1] A. Kumar, "Image denoising," IEEE Trans. Signal Process., vol. 5, no. 2, pp. 10-20, 2020."), APA (author-date) or MLA (author-page). A fixed style lets readers trace each source, gives credit, avoids plagiarism and keeps the paper consistent.

Asked: [7 marks] (Dec 2023) What is a technical research paper? What is the structure of a technical research paper?

Speaking Skills: Audience Awareness

Definition. <mark>Audience awareness is knowing who the listeners are (their age, background, knowledge, needs and attitude) and shaping the message to them; audience analysis is the study that gives this knowledge.</mark>

Key points.

Analysis has three kinds: demographic (age, education, profession), psychographic (attitudes, interests, expectations) and situational (size, venue, time).
It lets the speaker tailor content, language, visual aids and delivery to the listeners' level.
It engages interest through relevant examples.
It helps anticipate questions and objections.
It ensures the speech achieves its objective (inform, persuade, instruct).
Examples: a manual for lay users uses plain words and pictures, one for engineers uses specifications; management gets a one-page summary, engineers the full lab report.
Paralanguage is adjusted too: a slow, warm tone for beginners, brisk and precise for experts.

Dec 2022 (14 marks), add: (a) Voice: see the next two topics. (c) Body language: stand upright; open gestures (palms visible) build trust, folded arms look defensive; hold eye contact 3-5 seconds per section of the audience; smile naturally; never fidget or turn your back. (d) Subject knowledge from credible sources gives confidence and credibility, and in Q&A lets the speaker answer accurately or admit "I will check and get back to you".

Answer frame. Define audience analysis with its three types; give benefits 2-5 with an example each; close that knowing the audience makes communication effective. For the 14-mark question, give (a)-(d) 3-4 sentences each.

Asked: [7 marks] (Dec 2023, Dec 2024, Jun 2025, Dec 2025) What benefits does audience analysis provide you as the speaker? / Explain the importance of understanding the audience in technical communication. Provide two examples. Asked: [7 marks] (Dec 2025) Explain audience awareness and paralanguage in effective speaking. Asked: [14 marks] (Dec 2022) In speaking skills, explain the role of (a) voice/paralanguage, (b) audience awareness, (c) body language, (d) subject knowledge.

Voice

Definition. <mark>Voice is the speaker's vocal quality, and voice modulation is varying pitch, volume, pace and tone to avoid monotony.</mark>

Key points.

Pitch falls for statements and wh-questions ("Where is the lab?") and rises for yes/no questions ("Is it ready?").
Volume must reach the last row; pace should be moderate, with pauses for emphasis.
Articulation is clear pronunciation and enunciation of every syllable, so "thirty" is not heard as "thirteen".

Vocabulary and Paralanguage

Definition. <mark>Paralanguage is the vocal, non-word part of speech: tone, pitch, volume, pace and pause; vocabulary is the choice of words.</mark>

Key points.

Simple, familiar words help a general audience, while technical precision suits experts; adapting both prevents misinterpretation and keeps listeners engaged.
Tone: "Fine." in a flat tone signals indifference or reluctance, in a sharp, clipped tone annoyance, in a warm tone agreement.
Volume: raise it to stress a warning ("Do NOT touch the live wire"), lower it in a small room. Modulating pitch and pace avoids a monotonous, sleepy delivery.
Pause: "The result was... (pause) a failure"; a pause before a key point adds emphasis, after it lets listeners absorb it, and it replaces fillers ("um").
Context matters too: written text lacks tone, so needs exact words; a meeting is brief, a lecture longer. Example: tell management "the system was down for an hour" calmly, engineers "the database timed out"; tell patients "it may cause drowsiness" warmly, doctors "it causes sedation".

Asked: [7 marks] (Jun 2025) Why is it important to adapt vocabulary and paralanguage according to the audience and context? Provide a specific example.

Group Discussion

Definition. <mark>A group discussion is a structured exchange of views by a group on a topic, held to reach a conclusion and to judge communication and leadership.</mark>

Key points.

Objectives: collective problem solving and, in recruitment, judging candidates. Types: topic-based ("Is AI a threat to jobs?"), case-based, abstract ("Zero").
Roles: the initiator opens with a fact or definition; the moderator keeps it on track and brings in quiet members; the summariser states the main views and conclusion.
Techniques: speak clearly and briefly, listen actively and build on others' points. Enter: "May I add a point here?"; yield: "What do you think, Riya?"; disagree politely: "I see your point, but the data suggest otherwise."
Evaluation: knowledge, communication, listening, logic, leadership, teamwork and body language (sit upright, eye contact, nod). Don't shout, interrupt or dominate.
Overcome GD nervousness by reading current topics, practising mock GDs, opening with a simple point and thinking positively.

Asked: [7 marks] (Dec 2025) Discuss group discussion techniques and ways to overcome nervousness.

Combating Nervousness

Definition. <mark>Nervousness (stage fright) is the anxiety a speaker feels before or during a presentation, showing as a dry mouth, trembling and a racing heart.</mark>

Key points.

Causes: fear of negative evaluation (being judged or laughed at), and lack of preparation.
Causes: self-doubt and perfectionism (panic over one forgotten word).
Causes: the fight-or-flight response: the brain sees the audience as a threat and releases adrenaline, causing a racing heart, sweating and a shaky voice; also an unfamiliar venue, a past bad experience and high stakes.
Cure: prepare thoroughly, rehearse aloud and memorise the opening lines; use cue cards with key points instead of learning the text verbatim.
Cure: breathe deeply, stand confidently, visualise a successful talk, focus on friendly faces and on the message, not yourself.
Cure: reach early to check the venue and equipment; after a slip, pause, smile and continue calmly, since the audience rarely notices.
By type: seminar, rehearse with slides and time it; interview, research the company and practise questions; meeting, prepare agenda data; viva, revise your report and admit calmly what you do not know; GD, read current topics.

Answer frame. For causes, define stage fright and give points 1-3, explaining fight-or-flight. For ways, define, give causes in one line, then points 4-7, and close with "confidence grows with practice".

Asked: [7 marks] (Dec 2022) Discuss the ways to combat nervousness in different oral presentations. Asked: [7 marks] (Dec 2024) What are the common causes of nervousness during public speaking or communication?

Speaking to One and to One Thousand

Definition. <mark>Speaking to one is personal and conversational; speaking to a crowd is formal and projected.</mark>

Key points.

To one person, use a natural voice, eye contact and two-way talk.
To a crowd, use a stronger voice, clear structure, larger gestures and a microphone.

Mock Presentations

Definition. <mark>A mock presentation (dry run) is a practice presentation given to peers or a mentor before the final delivery.</mark>

Key points.

It builds confidence and reduces anxiety, because the speaker faces an audience beforehand.
It checks timing and exposes flaws in content, delivery, slides and equipment.
Constructive feedback from peers or a mentor, collected on a short checklist (content, voice, pace, slides, time), shows exactly what to improve; apply it and rehearse again.
Simulate real conditions: the same room, projector, standing position, dress and time limit.
Video-record the mock to see your own gestures, fillers and pace.
Hold a practice Q&A round in which peers ask likely questions, so answers are ready.

Answer frame. Define; points 1-2; feedback (3) as the key benefit; techniques 4-6; close that a mock is a dress rehearsal that lowers risk.

Asked: [7 marks] (Jun 2024, Jun 2025) What is mock presentation? Why is mock presentation important? / What do you understand by a mock presentation? Explain its significance.

Last-minute revision

Language: inform, instruct, record, persuade; "25 N·m", not "firmly".
Memo: Ref, TO, FROM, DATE, SUBJECT, initials, CC; no salutation.
Order letter: items, rate, GST, total, then terms.
Audience analysis: demographic, psychographic, situational.
Pitch falls for statements and wh-questions, rises for yes/no questions.
Nervousness: prepare, rehearse, breathe, visualise, know the venue.

Memory hooks

7 Cs: Clear, Concise, Correct, Concrete, Considerate, Courteous, Complete.
Report: FMB = Front, Main, Back. Styles: EDPI. Audience: DPS.
Paralanguage: PTPVP = Pitch, Tone, Pace, Volume, Pause.

Coverage checklist

Traits of Technical Writing, Principles of Business Writing, Style of Writing, Writing Memos, Letters: all above.
Reports, and Types of technical reports; Characteristics, format and structure of technical reports: Dec 2024, Nov 2022, Dec 2023, Dec 2025.
Writing Research Papers: Dec 2023.
Speaking Skills: Audience-awareness: Dec 2022 to Dec 2025.
Voice, Speaking to one and to one thousand: not asked.
Vocabulary and Paralanguage: Jun 2025.
Group Discussion: Dec 2025.
Combating Nervousness: Dec 2022, Dec 2024.
Mock Presentations: Jun 2024, Jun 2025.

Account

Technical Communication (AL-301) - Unit 3 Short Notes

How unit 3 is examined

Traits of Technical Writing

Principles of Business Writing

Style of Writing

Writing Memos

Letters

Reports and Types of Technical Reports

Characteristics, Format and Structure of Technical Reports

Writing Research Papers

Speaking Skills: Audience Awareness

Voice

Vocabulary and Paralanguage

Group Discussion

Combating Nervousness

Speaking to One and to One Thousand

Mock Presentations

Last-minute revision

Memory hooks

Coverage checklist