JNTU
JNTU B.Tech IV HUMAN ENGINEERING AND SAFETY Previous Question Paper (May - 2019 - R15)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.
Part A
Define human factors. Mention its importance in safety.
Answer
Human factors is the scientific discipline concerned with the understanding of interactions among humans and other elements of a system. Its importance in safety lies in optimizing human performance, reducing human error, and preventing accidents by designing systems that accommodate human capabilities and limitations.
Differentiate between fitting man job and fitting job man.
Answer
Fitting man to job involves adapting the work environment, tools, and tasks to match the physical and cognitive capabilities of the worker, thereby enhancing safety and efficiency. In contrast, fitting job to man (or selecting the man for the job) involves selecting individuals who already possess the specific traits, skills, or physical attributes required to perform a pre-defined task effectively.
What is the effect of dynamic work and static work on oxygen consumption?
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What is fatigue? Mention the reasons for the same.
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How the energy expenditure is calculated using basal metabolic rate?
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Define Physical work capacity. How it is related to oxygen uptake?
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Mention the Psychosocial aspects of noise-induced hearing loss.
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What is displacer? Mention its types and applications.
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What are green house gases? List the sources and effects of the same.
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Summarize the different components that make up the human information processing system.
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Part B
Discuss the machine factors and environmental factors related to safety aspects in industries.
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Describe the concept of ergonomics and its areas of application in the work system.
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Explain the International Standards Organization (ISO) list of anthropometric variables and their method of measurement.
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Name the three primary effectors in human – machine model.
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Summarize the important functions of the skeletal and muscular systems.
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Explain the guidelines and ergonomic concerns of a hand tool design.
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Discuss the conditions for the stability of body parts based on position of the feet.
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Explain the importance of cardio vascular system in physical work situation.
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Describe the various factors influencing a person’s capacity to carry out physical work.
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Discuss the calculation of work – rest schedules and timing based on physical workload.
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Explain the causes of accidents and safety precautions to be followed while working with machinery.
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Write notes about noise pollution monitoring and control.
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Describe the lighting design considerations for visual comfort and to meet visual demands in industries.
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Discuss the sources and effects of air pollution.
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Mention the significance of sensory memory systems in information processing.
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Explain the safety measures and guidelines followed for metal forming operations.
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Write the uses of cognitive models of the human operator.
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