Chartered Membership of IMechE (CEng MIMechE) Communication and Interpersonal Skills Syllabus

When should a data table be used instead of a chart, and vice versa?

Use a table when precise individual values matter or readers need to look up exact figures; use a chart when the message is a trend, comparison, proportion or pattern that is grasped visually.

Which chart type best shows a trend over continuous time?

A line chart (line graph), because it emphasises continuity and the direction/rate of change between successive time points.

Which chart type best shows the parts of a whole, and what is a key limitation?

A pie chart shows proportions of a single total. Limitation: it becomes hard to read with many slices or similar-sized segments — a bar chart is often clearer for comparing categories.

What is the 'data-ink ratio' principle in data visualisation (Tufte)?

The proportion of a graphic's ink devoted to displaying actual data should be maximised. Remove non-essential 'chart junk' (heavy gridlines, decoration, 3D effects) so data dominates.

What does a scatter plot reveal that a bar chart does not?

The relationship/correlation between two continuous variables, including the strength and direction of association and any outliers or clustering.

In statistics, what does a correlation coefficient $r$ of $-1$, $0$, and $+1$ indicate?

$r = -1$ is a perfect negative linear relationship, $r = 0$ indicates no linear relationship, and $r = +1$ is a perfect positive linear relationship. Values between indicate weaker associations.

Why must axis scales on a comparison chart usually start at zero?

A non-zero (truncated) baseline exaggerates differences between bars/values and can mislead the viewer about the true magnitude of the comparison.

What is the difference between accuracy and precision when presenting measured data?

Accuracy is closeness of a value to the true value; precision is the repeatability/closeness of repeated measurements to each other. A result can be precise but inaccurate, or accurate but imprecise.

How should significant figures be chosen when reporting an engineering result?

Report only as many significant figures as the precision of the data and measurement uncertainty justify — typically matching the least precise input value; over-quoting implies false precision.

Define negotiation in a professional engineering context.

A dialogue between two or more parties with differing interests aimed at reaching a mutually acceptable agreement or resolving a dispute through discussion and compromise.

What is the difference between a 'distributive' and an 'integrative' negotiation?

Distributive ('win-lose') divides a fixed resource so one party's gain is the other's loss; integrative ('win-win') seeks to expand value and satisfy both parties' underlying interests.

In negotiation theory, what does BATNA stand for and why does it matter?

Best Alternative To a Negotiated Agreement — your best course of action if no deal is reached. It defines your walk-away point and is the main source of negotiating power.

What is ZOPA in negotiation?

The Zone Of Possible Agreement — the range between each party's reservation (walk-away) point within which a deal that both accept is possible. If reservation points don't overlap, there is no ZOPA.

In principled negotiation (Fisher & Ury, 'Getting to Yes'), what are the four core principles?

Separate the people from the problem; focus on interests, not positions; invent options for mutual gain; and insist on using objective criteria.

What is the difference between a 'position' and an 'interest' in negotiation?

A position is what a party says they want (a demand); an interest is the underlying need, concern or motivation behind it. Resolving conflicts of interest, not positions, enables creative agreement.

Name Cialdini's six principles of persuasion/influence.

Reciprocity, Commitment & Consistency, Social Proof, Authority, Liking, and Scarcity.

Who are 'stakeholders' in an engineering project?

Any individuals or groups who affect, are affected by, or have an interest in the project — e.g. clients, users, employees, regulators, suppliers, the public, and shareholders.

Describe the power/interest grid used in stakeholder management and the four resulting strategies.

A 2x2 of stakeholder power (high/low) versus interest (high/low): Manage Closely (high power, high interest), Keep Satisfied (high power, low interest), Keep Informed (low power, high interest), and Monitor (low power, low interest).

What are the main stages of the stakeholder management process?

Identify stakeholders, analyse/prioritise them (e.g. power-interest mapping), plan engagement/communication, communicate and engage, and monitor/review relationships throughout the project.

What is a RACI matrix and what do its letters mean?

A responsibility assignment chart clarifying roles for each task: Responsible (does the work), Accountable (owns/sign-off, one person), Consulted (gives input, two-way), and Informed (kept updated, one-way).

Define 'multidisciplinary working' in engineering.

Collaboration between people from different engineering and professional disciplines (e.g. mechanical, electrical, software, civil) who contribute their specialist expertise toward a shared project goal.

What is the difference between 'multidisciplinary' and 'interdisciplinary' working?

Multidisciplinary: disciplines work in parallel, each contributing within their own boundaries. Interdisciplinary: disciplines integrate methods and knowledge to create a shared, blended approach across boundaries.

Name two common barriers to effective cross-cultural communication.

Language differences, differing non-verbal norms (e.g. eye contact, gestures), varying attitudes to hierarchy/directness, stereotyping/ethnocentrism, and differing concepts of time or decision-making.

In Hofstede's cultural dimensions, what does 'power distance' describe?

The extent to which less powerful members of a society/organisation accept and expect that power is distributed unequally. High power distance cultures accept steep hierarchy; low power distance favour flatter, more egalitarian relations.

What is the difference between 'high-context' and 'low-context' cultures (Edward Hall)?

High-context cultures convey meaning implicitly through context, relationships and non-verbal cues; low-context cultures convey meaning explicitly through direct, precise words. Misalignment causes misunderstanding.

What are Tuckman's five stages of team development?

Forming, Storming, Norming, Performing, and Adjourning (Mourning). Teams typically progress through these as relationships and effectiveness mature.

For the IMechE professional review interview, what is the candidate expected to present about their key project?

A concise account of a significant project/technical problem they led or contributed to — the engineering challenge, their personal role and decisions, the solution, and the outcomes — demonstrating UK-SPEC competences.

When responding to a reviewer's challenging question in a professional review, what is good practice?

Listen fully, clarify the question if needed, answer honestly and concisely with evidence, acknowledge limitations or what you would do differently, and avoid being defensive or bluffing.

When responding to written reviewer comments on a report or paper, what structure is recommended?

Thank the reviewer, address each comment point-by-point, state the change made (with location), provide justification where you disagree, and remain courteous and evidence-based throughout.

What does 'adapting communication style' mean and give two factors that should drive the adaptation?

Adjusting your message, vocabulary, tone, channel and level of detail to suit the situation. Drivers include the audience's technical knowledge, their role/seniority, cultural background, the purpose, and the chosen medium.