Question

say if its true ir false

Indicate the True (1) or False statement in the following 1. ( The vernier scale (on the smaller moving portion of the caliper) gives the most significant digits in the reading 2. ) Abbe's principle states that the minimum accuracy may obtain when the standard scale and the work piece being measured are aligned on the same line measurement 3. (' ) Thermocouples can be made smaller in size than most RTD's so they can be formed to fit a particular application 4. ( 1) An external micrometer is typically used to measure wires, spheres, shafts, opening of holes, and blocks. 5. ( The Reading of the micrometer shown in the figure is 12.66 mm. 6. ( ) Vernier calliper is a line standard and a direct reading instrument. 7. ( T )The discharge coefficient for orifice flow meter varies considerably with changes in area ratio and the Reynolds number 8. The accuracy of the dial calliper is lower than that of the vemier 9. ( T ) The micrometer used in linear measurement has non-rotating spindle to reduce the wear. 10. Not all fluid particles travel at the same velocity within a pipe. II. 1 ) For metric dial caliper one revolution of the hand represents 2mm of travel, depending on the manufacturer. Therefore, cach dial graduation represents 0.05mm maximum discrimination 12. (1) Gauge blocks are good examples of end standards. 13.( F ) Gauge blocks are available in four grades of accuracy. 14. (F) Calibration grade block gauges are less accurate than 0 grade. 15.( 1 ) Phenomenon wringing takes place when two lapped surfaces are placed in contact with sliding movement. 16. ( T ) In comparative measurements, if the standard reading is greater than specimen reading, then the difference is added for the standard to have the true specimen reading 17.( T ) If the flow in a pipe is turbulent, the velocity distribution at a cross section will be parabolic in shape. 18. The reading of Rotometer in flow measurements increases linearly with flow rate. 19. (T) If the flow in a pipe is laminar, the velocity distribution at a cross section will be parabolic in shape with the maximum velocity at the center being about the average velocity in the pipe

Answer 1

1) True.

2) True.

3) True.

4) True.

5) True.

6) True.

7) True.

8) False.

9) True.

10) True. Velocity of fluid particles depends on laminar or turbulent flow in pipe.

11) True.

12) True.

13) False.

14) False.

15) True.

16) True.

17) True.

18) False.

19) True.