Which one of the following statements is not correct ? (a) A surveyor’s compass has two sight vanes (b) A prismatic compass has an object vane and an eye vane (c) A trough compass is an accessory to a plane table (d) In a prismatic compass the graduations on the aluminimum disc rotate and the index remains stationary

Which one of the following statements is not correct ?
 (a) A surveyor’s compass has two sight vanes
 (b) A prismatic compass has an object vane and an eye vane
 (c) A trough compass is an accessory to a plane table
 (d) In a prismatic compass the graduations on the aluminimum disc rotate and the index remains stationary
by

1 Answer

Answer :

(a) A surveyor’s compass has two sight vanes
by

Related questions

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