How often should air filters be replaced in a vehicle?

Explanation: Air filters should be replaced every 15,000–30,000 km to ensure engine efficiency.

Q: What helps by releasing chemicals that control other lymphocytes?
Ans: helper t cells

Q: A wheel with a rope wrapped around it, hanging over a building, is an example of what type of machine?
Ans: pulley

Q: Ribosomes are the site of what process?
Ans: protein synthesis

Q: Which of these is a source of water?
Ans: River

Q: Which High Court declared Section 77A unconstitutional on August 5, 2024?
Ans: Madras High Court

Q: In Charaka Samhita, which Chikitsa is indicated for Kaphaja Kasa?
Ans: Vamana

Q: Indian Railways completed the first trial run on the world's highest railway bridge 'Chenab Bridge'. On which river is it?
Ans: Chenab

Q: On May 17, 2024, which campaign was organized by the Dept. of Ex-Servicemen Welfare?
Ans: Samadhan Abhiyaan

Q: Who won the title of 'Miss Pink Nepal 2024'?
Ans: Anmol Rai

Q: A patient with a tracheostomy requires suctioning. When is this procedure indicated?
Ans: Excessive secretions

Q: Which modern drug is an example of an antiemetic?
Ans: Ondansetron

Q: Which Five-Year Plan focused on poverty alleviation?
Ans: Fifth

Q: How do optical fibers transmit data?
Ans: Total internal reflection

Q: What is the rule for driving near a school zone?
Ans: Reduce speed to 25 km/h

Q: The top of the saturated rock layer is called what?
Ans: water table