Home
Class 12
PHYSICS
Statement-1: Machine parts are jammed in...

Statement-1: Machine parts are jammed in winter.
Statement-2: The viscosity of lubricant used in machine part decrease at low temperature.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reasonb is false

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A

Both assertion and reason are true and reason is the correct explanation of assertion. Both the assertion and the reason are correct. Special lubricants have to be used at low temperature.
Promotional Banner

Topper's Solved these Questions

  • AIIMS 2006

    AIIMS PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos
  • AIIMS 2008

    AIIMS PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

Machine parts are jammed in winter. Why?

Machine parts are jammed in winter due to

Statement I: Glass corners turns smooth when heated below melting point Statement II: Viscosity of glass is decreases with temperarue

Statement-1: If an annular disk is heated uniformly then outer radius increases but inner radius decreases. Statement-2: Temperature gradient of a rod is constant in steady state. Staement-3: Density of metal decreases with increase in temperature.

Statement-1 : Pendulum clocks go slow in summer and fast in winter. Statement-2 : The length of the pendulum used in clock increases in summer.

Statement-1: Coefficient of viscosity of liquid decreases while that of a gas increase, with increasing temperature. Statement-2: Density of a liquid and tht of a gas vary opposite manner with increase in temperature.

Statement-1: Specific heat capacities of all substance approach zero as T to O Statement-2: Molecular motion ceases at very low temperature.

AIIMS PREVIOUS YEAR PAPERS-AIIMS 2007-PHYSICS
  1. Assertion : Goggles have zero power. Reason : Radius of curvature of...

    Text Solution

    |

  2. Assertion : A white source of light during interference forms only whi...

    Text Solution

    |

  3. Assertion : A current continues to follow in superconducting coil even...

    Text Solution

    |

  4. Assertion : Heavy water is a better moderator than normal water. Rea...

    Text Solution

    |

  5. Assertion : Dipole oscillations produce electromagnetic waves. Reaso...

    Text Solution

    |

  6. Assertion : NAND is a universal gate. Reason : It can be used to des...

    Text Solution

    |

  7. Assertion : Ferro magnetic substances become paramagnetic above Curie ...

    Text Solution

    |

  8. Assertion : In a cavity within a conductor, the electric field is zero...

    Text Solution

    |

  9. Assertion : Voltmeter is connected in parallel with the circuit Reas...

    Text Solution

    |

  10. Assertion : Ohm's law is applicable for all conducting elements. Rea...

    Text Solution

    |

  11. Assertion : No power loss associated with pure capacitor in ac circuit...

    Text Solution

    |

  12. Assertion : In a metal all the free electrons have same energy. Rea...

    Text Solution

    |

  13. Assertion : Optical fibers are used for telecommunication. Reason : ...

    Text Solution

    |

  14. Assertion : A hollow metallic closed container maintained at a uniform...

    Text Solution

    |

  15. Statement-1: Machine parts are jammed in winter. Statement-2: The vi...

    Text Solution

    |

  16. Assertion : An astronaut experience weightlessness in a space satellit...

    Text Solution

    |

  17. Assertion : A brass tumbler feels much colder than a wooden tray on a ...

    Text Solution

    |

  18. Assertion : In free expansion of an ideal gas, the entropy increases. ...

    Text Solution

    |

  19. .^90 Sr from the radioactive fall out from nuclear bomb ends up in the...

    Text Solution

    |

  20. Assertion : Sound waves cannot propagate through vacuum but light wav...

    Text Solution

    |