মেট্রোলজি MCQ
101. What is the accuracy range of stric micrometer?
± 0.005µm
±0.5µm
±0.05µm
±0.0005µm
102. Master height gauge is used to measure-
Groove widths
Concentricity
Pitches
Hole location
103. A universal measuring instrument can withstand up to which temperature for correct reading?
100°C
65°C
75°C
50°C
104. Which of the following option is correct for given statements about universal measuring instrument? Statement 1: There is a rack and pinion movement in measuring slide. Statement 2: An independent power supply unit is screwed to the base.
Only statement I is true
Only statement 2 is true
Both the statements are true
Both the statements are not true
105. To check the bending in micrometer, what is the difference between the measurement of loaded and unloaded conditions for micrometer range 0 to 25 mm?
1.5µm per kg
2.5µm per kg
2.0µm per kg
3.0µm per kg
106. Which of the following is incorrect about master height gauges?
Can provide a high precision standard
It has a digital readout
Has a sliding attachment
Built-in microprocessor
107. How much measuring capacity is increased by using riser blocks with master height gauge?
500mm
600mm
800mm
700mm
108. How many push buttons are needed for convenient and easy operations?
5
7
6
8
109. What is the least count of dial indicators which can be calibrated using passmeter?
0.01mm
0.05mm
0.03mm
0.07mm
110. How many divisions are graduated on thimble?
20
45
25
50
111. Which of the following is correct about Vernier height gauges?
The scriber should preferably be of more depth than jaw
The perpendicular distance between scale graduations and vernier graduations should be more than 0.01mm
The base is tapped up to an accuracy of 0.05mm
Width of interval between adjacent lines should be 1/2 or 1/3 times of the length of shortest graduations
112. What is the range of reading error for measuring a range of height gauges of 250 mm?
±0.02
±0.04
±0.03
±0.05
113. What is the permissible measuring speed in universal measuring instrument for error free reading?
1 m/sec
1 cm/sec
1 mm/sec
2 cm/sec
114. Which of the following option is correct for given statements? Statement 1: Master height gauge is useful in setting other height gauges, Statement 2: Can provide a BCD output.
Only statement 1 is true
Both the statements are true
Only statement 2 is true
Both the statements are not true
115. Which of the following option is incorrect about the universal measuring instrument?
Twin digital display is present
Highly skilled operator is required
Computation capabilities
Automatically sense diameter of bores
116. Which of the following is incorrect about precautions in using a micrometer?
Final movement is given by ratchet
Thimble is turned till the Measuring tip just touches the part to be measured
Part to be measured is held in right hand and micrometer in left hand for good results
Error is reading is may be due to lack of flainess of anvil । What is the accuracy range of stick
117. Vernier is at which position when the scriber is coplanar with the base?
Vernier is exactly at the middle position of the scale
Vernier reads 1/4th of the scale
Vernier is at 3/4th position
Vernier reads zero
118. Which of the following is true for master height gauges?
This is a stack of slip gauge blocks
Can store readings in memory
Less skilled labour
Has statistical production control
119. Which attachment is needed to check squareness and parallelism with master height gauge?
Dial test indicator
Slip rings
Gauge block
Micrometer
120. Which of the following is correct about electronic display unit of universal measuring instrument?
Sensitive to electrical interference
Non-removable
Cast iron protection cover
It is plug-in type