MCQ
281.
Which of the following option is correct about given statements about micrometer? Statement 1: The anvil should not protrude from the frame. Statement 2: An adjusting nut is present in micrometer to compensate wear.
Only stalement 1 is true
Only statement 2 is true
Both the statements are true
Both the statements are false
282.
What is the value of total error for grade 1 micrometer when micrometer is tested at 20°C?
4+(L/100)µm
6+ (L/100)µm
5+ (L/100)µm
7+(L/100)µm
283.
Which of the following is correct about micrometer?
Plastic insulating grips are used on the frame
Satin chrome finish increase the reading enors
A uniform and maximum measuring force is applied
Bartel is the removable part of the frame
284.
Vernier calipers is an instrument of-
precision
high precision
non-precision
none of there
285.
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
286.
What is the use of ratchet stop in micrometer?
Prevent motion of spindle
Maintain uniform measuring pressure
Provide measuring surface
Forms measuring tip
287.
Which of the following option is correct for the given statements about vernier height gauge? Statement 1: The projection of scriber beyond the jaw should be 10 mm. Statement 2: Flatness of working surface of scriber can be checked by the knife edge.
Only statement I is correct
Only statement 2 is correct
Both the statements are correct
Both the statements are incorrect
288.
What is the standard reference temperature for the measurement of the accuracy of vernier height gauges?
20K
20°C
40K
40°C
289.
What is the least count of clinometer which is used to check reading of column rotation used for setting of helix angles in universal micrometer?
4”
2”
3”
1”
290.
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
291.
What is the total error in micrometer?
Positive and negative deviation from the zero point
Error in parallelism
Deviation from measurement of a nominal dimension
Maximum difference between ordinates of cumulative error
292.
What are the functional dimensions?
Have to be machined and fit with other mating components
Which have no effect on the performance of quality
Need not to be machined to an accuracy of the high degree
Function is more important than accuracy
293.
Why tolerances are given to the parts?
Because it's impossible to make perfect settings
To reduce weight of the component
To reduce cost of the assembly
To reduce amount of material used
294.
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
295.
Which of the following is used for checking the perpendicular distance from the graduated face of a beam to the graduated face of Vernier-
Angle gauge
Vernier depth gauge
Feeler gauge
Slip gauge
296.
What is the accuracy range of stric micrometer?
± 0.005µm
±0.5µm
±0.05µm
±0.0005µm
297.
Which of the following is incorrect?
V-Artvil micrometer caliper is used to check out of roundness
Blade type micrometer has a non-rotating spindle
Tube wall thickness can be measured by an ordinary micrometer
Self-centering inside micrometer has an interchangeable measuring head Vernier
298.
Which of the following is incorrect about micrometer?
Thimble and barrel should have a dull finish
Total travel of the measuring spindle is called measuring range
Graduated surface diameter of barrel should be 5mm
Screw has 10 or 20 threads per cm
299.
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
300.
What is the least count of a micrometer?
0.01µm
0.02µm
0.35µm
0.2µm