The radiator in a car serves to

A. cool the engine

B. heat up the engine

C. start the car

D. moderate the speed

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. The velocity of sound in air
  2. The velocity required to place a vehicle in orbit round the moon is _________ that required to place…
  3. The device that is used to measure the electromotive force of a cell is
  4. A hydraulic brake in an automobile uses
  5. For viewing objects placed at a higher level from a position at a lower level, the instrument used'…
  6. When two similar sources vibrate with slightly different frequencies, a regular rise and fall occurs…
  7. The inability of a body to change its state of rest or uniform motion along a straight line is called…
  8. The audible range of a normal human ear is frequencies ranging from
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  10. Increase in pressure
  11. A star contains
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  13. When a particle in motion is acted upon by a force in a direction perpendicular to the direction of…
  14. A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water…
  15. Photoelectric cell is a device which converts
  16. A bullet is fired at a certain angle with the horizontal. Its path will be
  17. The power of a lens is
  18. Before the invention of geostationary satellites, television stations could not transmit their programmes…
  19. When a light ray is reflected repeatedly by a set of parallel plane mirrors, the intensity of light…
  20. A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because
  21. Which of the following is known as freon?
  22. The enormous energy released in nuclear and thermonuclear reactions is due to conversion of
  23. A piece of ice is Boating In water kept in a beaker. When all the ice melts the level of water will
  24. Bats flying in the dark avoid obstacles because
  25. The period of oscillation of a simple pendulum depends upon
  26. A spherical mirror is
  27. If you want to open a door with les difficulty you push it
  28. Warm air will hold more water vapour than cold air because
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