Match the following parts of prismatic compass with their functionalities.
|
|
List-I |
|
List-II |
|
A |
Metal box |
1 |
Heart of the compass |
|
B |
Pivot |
2 |
Protective casing against dust |
|
C |
Lifting pin |
3 |
Centrally located part |
|
D |
Magnetic needle |
4 |
Provided right below the sight vane |
A B C D
1. Metal box → b. Protective casing against dust:
The cylindrical metallic box protects the internal components of the compass from dust,
moisture, and damage.
2. Pivot c. Centrally located part: The pivot is fixed vertically at the center of the box to
support the magnetic needle.
3. Lifting pin d. Provided right below the sight vane: The lifting pin is located beneath the sight
vane; pressing or folding the sight vane activates it to lift the needle off the pivot to prevent
wear and tear.
4. Magnetic needle a. Heart of the compass: The magnetic needle aligns with the magnetic
meridian and is the core functional element (heart) of the compass.
Practice more questions and improve your performance with Zone Tech.
Access live classes, recorded lectures, quizzes and test series from your mobile.
