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- The mosquito coil we generally see in ho...

Q. |
## The mosquito coil we generally see in house hold purposes and heating coils in electrical heater etc are generally which spiral. |

A. | logarithmic spiral |

B. | equiangular spiral |

C. | fibonacci spiral |

D. | archemedian spiral |

Answer» D. archemedian spiral | |

Explanation: archemedian spiral is a curve traced out by a point moving in such a way that its movement towards or away from the pole is uniform with the increase of the vectorial angle from the starting line. the use of this curve is made in teeth profiles of helical gears, profiles of cam etc. |

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Engineering Graphics

- Logarithmic spiral is also called Equiangular spiral.
- Which of the following represents an Archemedian spiral?
- Which of the following does not represents an Archemedian spiral?
- Fermat’s spiral iv. r=Ɵ1/2
- Cyclone iv. Lituus spiral
- In logarithmic Spiral, the radius vectors are in arithmetical progression.
- The object we see in our surrounding usually without drawing came under which projection?
- The objects we see in nature will be in Isometric view.
- A line AB is placed in such a way that the distance from A and B to vertical plane are 5 and 10 cm and distances from A and B to horizontal plane are 4 and 8 cm each. The traces would present
- A line AB is placed in such a way that the distance from A and B to vertical plane are 5 and 10 cm and distances from A and B to horizontal plane are 5 and 10 cm each. The traces would present

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