This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
[{'content': 'High Air velocity is measured by - \nSelect and explain. \nA. Psychrometer, B. Anemometer, C. Kata thermometer, D. Hygrameter', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e.. Anemometer", 'role': 'assistant'}]