Sketch of prismatic compass and label its component parts
State any eight component parts with its functions of prismatic compass. Answer : Component parts of prismatic compass are as follows. 1. Break pin - It is used to stop the oscillations of aluminum ring. 2. Lifting pin - It lifts the magnetic needle when sight vane is folded. ... and sighting vane when the compass is not in use to protect the compass from dirt, dust etc. ...
Draw labeled sketch of prismatic compass. Answer : Sketch of prismatic compass : ...
State the meaning of local attraction and state its effect on prismatic compass and how it taken care of. Answer : Local attraction: It is the deviation or deflection of magnetic needle from its normal position under influence of external magnetic forces is called as local attraction. Effect on prismatic compass: ... compass. 3) If local attraction still persists, it is corrected by mathematical calculation. ...
List any eight component parts of prismatic compass with their function in brief. Answer : Component parts of compass with their function. Sr.No Component Function 1 Circular metal box To protect needle and pivot. 2 Steel pivot To carry magnetic ... prism to eye sight of observer 14 Magnetic needle To obtain the north direction. ...
Define folds and draw neat sketch of a fold and label its different parts. Answer : Fold: Folds may be defined as undulations or bends that are developed in the rock of the Earth’s crust, as a result of stresses (commonly lateral compression) To which these rocks have been subjected to, from time to time in the past history of the Earth. ...
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