Thermal Engineering

• Indicator Organism for Food Handlers' Personal Hygiene:
• Staphylococcus aureus:
• Gram-positive coccus that colonizes human anterior nares, facial skin, hands, and hair ($30 - 50\%$ carrier rate in adults).
• Presence in pasteurized dairy or processed foods serves as the primary microbiological index of poor personnel hygiene and direct manual contamination by food processing personnel.
• Conclusion: Staphylococcus auerus (Option 3).

Correct option: (3) Staphylococcus auerus

• Statement (I) is True: The family Enterobacteriaceae is a large, diverse family of Gram-negative, facultatively anaerobic, non-spore-forming rod-shaped bacteria that ferment D-glucose with the production of acid and/or gas, reduce nitrates to nitrites, and are oxidase-negative.
• Statement (II) is True: The majority of medically and agriculturally important members of Enterobacteriaceae are pathogens or opportunistic pathogens in animals and humans, including Salmonella, Escherichia coli (ETEC, STEC/EHEC), Shigella, Yersinia pestis, Klebsiella pneumoniae, and Proteus.
• Conclusion: Both Statement (I) and Statement (II) are true (Option 1).

Correct option: (1) Both Statement (I) and Statement (II) are true.

Arranging the sequence correctly for Transducers for measurement of process variables like temperature:

The correct chronological order is Option 1: 429-4235.

Correct option: (1) 429-4235