Example of projected A.V aid is-

Appeared in: RUHS, Jaipur, PB B.Sc Nursing Entrance-2024

Explanation

Projected AV aids are educational tools that require a device to project an image onto a separate surface, like a screen or wall.
An epidiascope (or opaque projector) is a machine specifically designed for this purpose, capable of projecting images from non-transparent materials like books and maps.
This direct function of projection places the epidiascope squarely in the category of projected aids.

Option A: A blackboard is a non-projected aid. Information is written or drawn directly onto its surface for viewing.
Option B: A diorama is a non-projected, three-dimensional model. It is a static visual representation and does not involve projection.
Option D: A globe is a non-projected, three-dimensional model of the Earth. It is used for direct observation and interaction, not projection.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification of Audio-Visual (AV) Aids in education as background academic context rather than a clinical decision trigger.
In nursing, AV aids are crucial for patient and family education, staff training, and community health programs.
Understanding the difference between projected and non-projected aids allows a nurse to select the most effective tool for the situation (e.g., a PowerPoint presentation for a large group vs. a flip chart for a small group).
Effective teaching improves patient understanding, adherence to treatment, and health outcomes.

How to Approach the Question

This is a factual recall question that requires knowledge of educational technology classification.
First, understand the core concept: 'Projected A.V. aid'. This means a tool that uses a machine to cast an image onto a screen.
Evaluate each option based on this definition.
A 'Black board' is a surface you write on directly; it does not project.
A 'Diorama' is a 3D model; it is viewed directly and does not project.
An 'Epidiascope' is a type of projector, which by definition is a projected aid.

Concept Tested & Keywords

QJbAyOTeo8mAcKipiDDPFG

E6 Nursing Education & Educational TechnologySuresh k Sharma (pp 21-557 of 572) pp. 291-293, 319-321

E6 Essentials of Educational Technology Nursing EducationL Gopichandran C Kanniammal (pp 39-344 of 355) p. 195-197

Practise the full RUHS, Jaipur, PB B.Sc Nursing Entrance-2024

Attempt every question from this paper in a timed mock, then review the full solution for each one.