WorksheetsQuiz: Angle Measurement (Chapter 9)
Total questions: 10
Worksheet time: 5mins
In SI units, the magnitude of a plane angle is defined as the ratio of:
Diameter to circumference
Radius to arc length
Arc length to radius
Chord length to radius
How many degrees are there in one full circle?
90°
180°
270°
360°
One degree (1°) is equal to:
100 minutes
60 minutes
60 seconds
100 seconds
The relationship between radians and degrees is given by:
π rad = 90°
π rad = 180°
π rad = 360°
π rad = 270°
Which of the following is NOT a fixed angle gauge?
Steel square
Knife-edge square
Angular end block
Steel squares commonly used in industry have which standard angles?
30°, 45°, 60°, 90°
45°, 60°, 90°, 120°
30°, 60°, 75°, 105°
15°, 30°, 60°, 120°
Which instrument is used to measure angles with high precision and has a vernier scale?
Profile projector
Universal bevel protractor
Dividing head
Angular end block
A sine bar is mainly used for:
Measuring radius of curvature
Measuring linear distances
Measuring and setting angles accurately
Measuring thickness of thin sheets
Angle measurement using sine bars typically involves the use of:
Micrometers
Vernier calipers
Gauge blocks
Feeler gauges
A profile projector is mainly used for:
Checking small angles with sine rule
Inspecting and measuring the profile of components
Dividing circular components into equal angles
Aligning steel squares at 90°
