# The purpose of ratchet screw in micrometer screw gauge is to

1.  Lock a dimension

2.  Impart blow motion

3.  Maintain sufficient and uniform measuring pressure

4.  Take care of wear of screw threads

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Maintain sufficient and uniform measuring pressure

Explanation :
No Explanation available for this question

# External taper can be accurately measured with the help of

1.  Sine bar and slip gauge

3.  Combination set

4.   Clinometers

4

Sine bar and slip gauge

Explanation :
No Explanation available for this question

# Stick micrometers are designed for measuring

1.  Bore of cylinders

2.  Longer external lengths

3.  Cylindricity

4.  Longer internal lengths

4

Longer internal lengths

Explanation :
No Explanation available for this question

# A sine bar is specified by

1.  Its total length

2.  Centre distance between the two rollers

3.  Size of the rollers

4.  Weight of sine bar

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Centre distance between the two rollers

Explanation :
No Explanation available for this question

# The number of slip gauge in a set are

1.  87

2.  45

3.  103

4.  31

5.  All of these

5

All of these

Explanation :
No Explanation available for this question

# The essential requirement for accuracy of measurement with a sine bar is

1.  Flatness of upper surface

2.  Equality of size and roundness of rollers

3.  Exact distance between roller axes and mutual parallelism

4.  Parallelism of rollers to upper surface and equality of axis distance as from surface

5.  All of these

5

All of these

Explanation :
No Explanation available for this question

# In a sine bar the standard length is measured

1.  From edge to edge

2.  Between inner circumferences of two rollers

3.  Between outer circumferences of two rollers

4.  Between the centres of two rollers

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Between the centres of two rollers

Explanation :
No Explanation available for this question

# Accuracy of seeting a sine bar

1.  Decreases appreciably with steep angle

2.  Is poor for small angels

3.  Is maximum when angle of measurements is 450 C

4.  None of these

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Decreases appreciably with steep angle

Explanation :
No Explanation available for this question

# Figure below shows a case of error in relative location of surfaces. This case for

1.  Misalignment

2.  Axial run out

4.  Sureness error

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Explanation :
No Explanation available for this question

# The M-system and E-system in metrology are related with measurement of

1.  Gears

3.  Flatness

4.  Surface finish

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