Q1: What are Measuring Microscopes?
Ans: Measuring microscopes are optical instruments used to measure small dimensions of objects with high accuracy using magnification.
Q2: State the uses of Measuring Microscopes.
Ans: Uses of measuring microscopes are:
- ➔ Measuring small components
- ➔ निरीक्षण (inspection) of fine details
- ➔ Measuring angles and distances
- ➔ Tool and part inspection
Q3: State the classification of Measuring Microscopes.
Ans: Classification of measuring microscopes are:
- ➔ Filar Micrometer Microscope
- ➔ Scale Micrometer Microscope
Q4: What is a Filar Micrometer Microscope?
Ans: A filar micrometer microscope is a type of microscope that uses movable cross wires (filar lines) to measure small distances accurately.
Q5: What is a Scale Micrometer Microscope?
Ans: A scale micrometer microscope is a microscope that uses a fixed scale inside the eyepiece to measure dimensions.
Q6: What are Travelling Microscopes?
Ans: Travelling microscopes are microscopes that can move along a scale to measure distances precisely.
Q7: State some advantages of Measuring Microscopes.
Ans: Advantages are:
- ➔ High accuracy
- ➔ Magnification of small objects
- ➔ Non-contact measurement
- ➔ Useful for fine inspection
Q8: What is a Tool Maker’s Microscope?
Ans: A tool maker’s microscope is a precision instrument used to measure angles, dimensions, and profiles of small tools and components.
Q9: State some uses of Microscope.
Ans: Uses of microscope are:
- ➔ Inspection of small parts
- ➔ Measuring fine dimensions
- ➔ Checking tool profiles
- ➔ Quality control
Q10: What are Optical Flats?
Ans: Optical flats are highly polished flat glass surfaces used to check the flatness of a surface using light interference.
Q11: State some precautionary measures while working with Optical Flats.
Ans: Precautions are:
- ➔ Handle carefully to avoid scratches
- ➔ Keep surfaces clean
- ➔ Avoid dust and dirt
- ➔ Store properly after use
Q12: What is a Profile Projector?
Ans: A profile projector is an optical instrument that projects a magnified image of an object onto a screen for measurement and inspection.
Q13: State the importance of a Profile Projector.
Ans: Importance are:
- ➔ Accurate measurement of complex shapes
- ➔ Easy inspection of profiles
- ➔ Non-contact measurement
- ➔ Improves quality control
Q14: State the uses of a Profile Projector.
Ans: Uses are:
- ➔ Checking shape and profile
- ➔ Measuring angles and dimensions
- ➔ Inspection of small parts
- ➔ Tool inspection
Q15: State the two methods of projection.
Ans: The two methods of projection are:
- ➔ Diascopic Projection
- ➔ Episcopic Projection
Q16: What is Diascopic Projection?
Ans: Diascopic projection is a method in which light passes through the object to form an image on the screen.
Q17: What is Episcopic Projection?
Ans: Episcopic projection is a method in which light is reflected from the surface of the object to form an image.
