METROLOGY III

Which of the following is not an angle measuring device?

• Feeler Gauge

• Sine Bar

• Protractor

• Combination Set

What is the range of bevel protractor?

• 0-90°

• 0-180°

• 0-360°

• 90-270°

Where will be the vernier scale is present in bevel protector?

• Base Plate

• Circular Plate

• Adjustable Plate

• Main Body

What is the least count of vernier bevel protractor?

• 10’

• 5’’

• 5’

• 10’’

Accuracy of setting a sine bar

• is poor for smaller angles

• decreases appreciably with steep angle

• is dependent on accuracy of outer dimensions of sine bar

• None of these

External taper can be accurately measured with the help of

• sine bar and slip gauges

• dividing head

• height gauge

• clinometer

Which of the following is true?

• Ring gauge has a taper angle of 3 Φ

• Clinometer cannot measure angle between two adjacent surfaces

• Clinometer uses micrometer to measure small angles

• All of the above

The working principle of sine bar is

• optimetry

• trigonometry

• interferometry

• algebric

Which among the following is an optical instrument?

• angle dekkor

• autocollimator

• both of the above

• none of the above

Which one of the following is an angle measuring device?

• Trammel

• Hermaphrodite caliper

• Divider

• Sine bar