Methods of communication

Correct answer: D. Size and relationships may be misunderstood

Explanation: The governing concept is accuracy in visual communication. A diagram uses scale to represent the relative size or relationship of objects. If the scale is incorrect, viewers may compare items wrongly and form a misleading understanding of the information. It cannot make a message more formal, improve a voice, or guarantee immediate feedback. Hence, option D correctly identifies the effect.

Correct answer: A. Written minutes

Explanation: The governing concept is selecting a formal written method when information must be preserved. Meeting minutes record the main decisions, responsibilities, and sometimes deadlines so participants can review what was agreed and refer to it later. A verbal discussion, hand gesture, or joke does not provide a dependable permanent record. Therefore, option A is the suitable communication form.

Correct answer: B. Interaction and explanation for the audience decrease

Explanation: The governing concept is effective presentation communication, where slides support rather than replace the speaker. Reading every word can reduce eye contact, audience interaction, natural explanation, and attention because listeners may simply read along. It does not change the slide colour, remove the written record, or make the presentation non-verbal. Thus, option B gives the correct reason.

Correct answer: C. To increase the chance that the message is received and understood

Explanation: The governing concept is receiver-centred communication and suitable medium selection. A medium is effective only when the receiver can access it, use it, and understand the message. Considering convenience therefore increases the chance of successful delivery and meaningful feedback. It is not intended to change colour, silence the sender, or eliminate feedback. Hence, option C is correct.

Correct answer: A. Written message or sign language

Explanation: The governing concept is adapting communication to the receiver. A hearing-impaired person may not receive spoken or broadcast audio clearly, whereas written language and sign language can communicate without depending on hearing. Thus, option A is correct. A radio message, a phone call, and a verbal announcement remain primarily sound-based, so slowing them down does not remove the main accessibility barrier.

Correct answer: B. Both immediate clarification and a permanent record are available

Explanation: The governing concept is combining communication methods to improve clarity and usefulness. Verbal communication permits immediate questions, explanation, and clarification, while written communication preserves the exact information for later checking. Therefore, option B correctly identifies both benefits. The other choices describe neither a necessary result nor an advantage: using two forms need not cause confusion, remove the receiver’s role, or eliminate every non-verbal cue.

Correct answer: B. It may appear like shouting or a harsh tone

Explanation: The governing concept is digital communication etiquette, especially the way formatting conveys tone. In many online settings, an entire message in capital letters is conventionally read as shouting, anger, or unnecessary harshness, even if the writer did not intend that meaning. Therefore, option B is correct. Capital letters do not turn text into speech, erase its record, or automatically block images.

Correct answer: C. The professionalism and seriousness of the message may decrease

Explanation: The governing concept is choosing language and style according to the purpose and audience. Emojis can be helpful in informal conversations, but using too many in a formal email may make the message appear casual, less professional, or less serious. Hence option C is correct. Emojis do not necessarily reduce email size, prevent replies, or convert written email into verbal communication; those claims are unrelated.

Correct answer: A. Verbal instructions, a demonstration, and a written guide

Explanation: The governing concept is selecting suitable methods of communication for the audience and task. A complex machine benefits from spoken sequencing, a demonstration of actual actions, and a written guide that can be checked later. Option A is therefore the strongest combination. An emoji, an informal message, or a radio advertisement alone cannot provide enough precise, visual, and reusable instruction.

Correct answer: B. A mobile message and email

Explanation: The governing principle is choosing a communication medium according to urgency, reach, and the audience. A mobile message and email can be sent quickly to many students and parents, and the written record can be checked later. Therefore, option B is best. A classroom announcement reaches only some people, a private diary reaches one person, and telling one student cannot inform everyone reliably.

Correct answer: C. Audio-visual communication

Explanation: The governing concept is communication through more than one mode. In this presentation, spoken words provide the audio or verbal part, while the charts provide visual information. Together they form audio-visual communication, so option C is correct. It is not only verbal because charts are used, not only written because the student speaks, and not only non-verbal because speech is present.

Correct answer: C. Keeping a permanent record of official rules

Explanation: The governing concept is selecting a method according to the purpose of communication. Written communication is most useful when information must remain accurate, permanent, and available for future reference. Official rules therefore make option C correct. A casual greeting and an immediate question are faster verbally, while a game signal is usually visual or non-verbal rather than written.

Correct answer: C. Public one-way communication

Explanation: The governing concept is communication direction and audience. A speech delivered at an assembly is addressed to a public group, while the absence of an immediate reply makes the exchange mainly one-way at that moment. Therefore, option C is correct. It is not intrapersonal because more than one person is involved, not private two-way communication because immediate exchange is absent, and not written because the example is a spoken speech.

Correct answer: A. Smiling while saying thank you

Explanation: The governing concept is consistency between verbal and non-verbal communication. In option A, the spoken words “thank you” express appreciation and the smile gives a matching positive facial signal. The two forms reinforce one another, so the receiver gets a clearer message. Option B contains a contradiction between angry shouting and claimed happiness, while C and D do not show a meaningful verbal message supported by a related non-verbal cue.

Correct answer: B. Mass communication reaches a large audience while interpersonal communication occurs between individuals

Explanation: The governing concept is audience scale and interaction. Mass communication distributes a message to a large or broad audience through channels such as broadcasting or digital media. Interpersonal communication takes place between people, usually with more direct opportunity for personal feedback. Thus option B gives the correct distinction. Mass communication is not limited to writing, and interpersonal communication can include feedback, so options C and D are false; A describes neither form accurately.

Correct answer: B. As shouting or strong emphasis

Explanation: The governing concept is digital etiquette and the interpretation of written tone. In many online settings, writing an entire message in capital letters is conventionally read as shouting or unusually strong emphasis, even when the sender does not intend anger. Therefore, option B is correct. Capital letters do not indicate whispering, secrecy, or touch; those interpretations are unrelated to the usual convention of online text communication.

Correct answer: A. It attracts immediate attention over a wide area

Explanation: The governing concept is choosing a communication method according to urgency, reach and the receiver’s needs. A siren produces a loud audio signal that can attract many people immediately, even when there is no time to read. Therefore, option A is correct. Option B describes a written notice, while C and D are incorrect because a siren is intended for broad attention and must be heard.

Correct answer: A. The receiver may not understand the purpose immediately

Explanation: The governing concept is clarity in written and digital communication. An email subject gives the receiver a brief preview of the message’s purpose and helps the person prioritise, search and organise messages. Without it, the receiver may not understand the purpose immediately, so option A is correct. The other options describe effects that do not follow from an empty subject line.

Correct answer: A. Two-way exchange

Explanation: The governing concept is two-way communication, in which participants both send and receive messages. A group discussion cannot function well if one student only speaks, because listening is needed to understand others, respond appropriately and build a shared exchange. Therefore, option A is correct. Printed communication, visual symbols and tactile signals are particular forms or signs, not the principle violated in this situation.

Correct answer: A. To maintain an official record and clear reference

Explanation: The governing concept is formal written communication and its value as a record. A written office order can be checked later, shared with authorised staff and used as evidence of the instruction, reducing confusion about its wording or date. Therefore, option A is correct. A telephone call may be quick, but it is harder to verify afterward. Options B, C and D are not valid reasons for issuing a formal order in writing.

Correct answer: A. Written instructions

Explanation: The governing concept is matching a communication medium to the receiver’s abilities. Written instructions require the receiver to recognise letters, read words and understand the language used, so their effectiveness depends strongly on literacy. Therefore, option A is correct. A siren is heard, facial expressions are seen, and picture symbols can often communicate basic ideas with less reliance on reading ability, although context may still matter.

Correct answer: A. A student thinks about preparation before an exam

Explanation: The governing concept is intrapersonal communication, which occurs within one person rather than between separate people. In option A, the student reflects and uses inner self-talk while planning exam preparation, so both the sender and receiver are within the same individual. Options B and C involve communication between people, while D is mass communication from a media source to an audience.

Correct answer: A. To receive different ideas and feedback

Explanation: The governing concept is participatory group communication. Giving each member an opportunity to speak brings in different ideas, questions, experiences, and feedback, which improves understanding and decision-making; therefore A is correct. A one-way discussion prevents participation, secrecy is unrelated to equal speaking opportunities, and removing written records does not improve group communication.

Correct answer: A. Audio messages and Braille

Explanation: The governing concept is inclusive and accessible communication. Audio conveys information through hearing, while Braille conveys written symbols through touch, so together they can provide meaningful access for a visually impaired student; therefore A is correct. Colourful posters, small pictures, and ordinary traffic signs depend mainly on vision and are not suitable as the only communication medium in this situation.

Correct answer: A. Verbal explanation with diagrams or demonstration

Explanation: The governing concept is multimodal communication: combining complementary methods can improve clarity. Verbal explanation supplies sequence and detail, while diagrams or a demonstration make steps and relationships visible; therefore A is most effective for a complex process. A bell gives little information, one word lacks necessary detail, and gestures without a clear message cannot adequately explain the procedure.