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This set of Metrology and Measurements Multiple Choice Questions & Answers (MCQs) focuses on Metrology And Measurements Set 11
Q1 | What is the tolerance of the straightness of a line?
- maximum deviation from the straight line joining two extremities
- maximum deviation from the middle point of straight line joining two extremities
- minimum deviation from the straight line joining two extremities
- minimum deviation from the middle point of straight line joining two extremities
Q2 | For checking straightness, straight edge is placed over a surface and these two are viewed against the light. Which of the following option true if colour of light is red?
- gap between 0.12 to 0.17 mm
- gap between 0.2 to 0.7 mm
- gap between 1.7 to 2 mm
- gap between 0.0012 to 0.0017 mm
Q3 | What is the name of a pair of straight edges?
- drum sticks
- lower pair
- winding sticks
- self closed pair
Q4 | What is the position of straightness interferometer in straightness measurement optics?
- before laser head
- after straightness reflector
- between laser head and straightness reflector
- no need of interferometer
Q5 | What is the range of straightness measurement in straightness measurement optics?
- ±2.5 mm
- ±5 mm
- ±10 mm
- ±20 mm
Q6 | Which of the following is not the factor affecting the accuracy of straightness measurement by optics?
- air turbulence
- optics fixed rigidly
- slope error
- localised heat sources
Q7 | At which part of the precision straight edge is generally lapped?
- edges only
- base only
- base and edges both
- all over the surface
Q8 | What type of thread is formed on female screw gauge?
- external thread
- internal thread
- both internal and external
- major screw thread
Q9 | Which of the following option is true for truncation?
- thread can be tranculated at crest only
- thread can be tranculatd at root only
- thread can be tranculated at crest and root both
- thread can’t be tranculated at crest and root both
Q10 | What is dedendum for external threads?
- radial distance between pitch and minor cylinder
- radial distance between major and pitch cylinder
- radial distance between major and minor cylinder
- axial distance between major and pitch cylinder
Q11 | Which of the following is not a name of the major diameter of an external thread?
- outside diameter
- crest diameter
- full diameter
- cone diameter
Q12 | Which of the following is not true about the axial thickness of screw thread?
- measured in direction perpendicular to the axis of thread
- measured on pitch cylinder
- distance between opposite faces of same thread
- measured at the same thread
Q13 | What is the alternative name of functional diameter?
- cone diameter
- virtual diameter
- root diameter
- inside diameter
Q14 | What is a thread per inch in screw thread?
- pitch in inches
- axial distance moved by threaded part
- reciprocal of pitch in inches
- radial distance moved by threaded part
Q15 | Which of the following is not true about effective diameter?
- also known as pitch diameter
- it decides quality of fit between nut and screw
- this is the diameter of minor cylinder
- it is a very important dimension for screw threads
Q16 | Which of the following is true for the multiple start screw threads?
- it is produced by a single helical groove
- grooves should be different in spacing
- it gives a quick transverse
- it is formed in a transverse section on a cylinder
Q17 | Flanks of the threads connect the crest with the roots.
- true
- false
Q18 | What is the effect of improper alignment of each tooth?
- tooth thickness increases
- face width decreases
- load will not distributed evenly
- pitch of teeth reduced
Q19 | Which of the following is not true about concentricity of teeth?
- fluctuating velocity will be noticed when not concentric
- can be checked by using projector
- inaccuracy of parts when not concentric
- should be tested to ensure the proper heat treatment
Q20 | Which of the following option is true about an analytical method of inspection of gears?
- analytical method is widely used for industries
- this method is fast
- all individual elements of gear teeth are checked
- more accurate
Q21 | Which of the following element is not determined by analytical inspection?
- profile
- composite vibrations
- spacing
- pitch
Q22 | Which of the following is not determined by the functional type of inspection?
- lead
- noise level
- variation in action
- vibration
Q23 | Which of the following statement is true about inspection of gear?
- profile is determined by functional inspection
- backlash is determined by analytic inspection
- analytic test require running test of gear
- thickness of tooth is measured by functional inspection
Q24 | Which of the following machine is used for rolling tests?
- parkson gear tester
- tooth caliper
- base pitch measuring instrument
- involute profile testing machine
Q25 | If reference circle of gear is eccentric then which error is reflected by this eccentricity?
- cyclic error
- periodic error
- pitch error
- undulation