metrology

Metrology is a science of

• measurement
• machines
• motors
• management

Metrology is classified in to ___________

• 3
• 4
• 2
• 5

Accuracy of measuring instrument is

• The clossness with which a measurement can be read directly from a measuring instrument
• A measur of how close the reading is to the true value
• The difference between measured value and actual value the smallest change in measurand that can be measured.
• The capability to indicate the same reading again and again for a given measured

Fig. 1 shows the dimensions obtained on a component by certain instrument. This instrument is

• precise but not accurate
• accurate but not precise
• both accurate and precise
• neither precsie nor accurate

_______________ is defined as the repeatability of a measuring process

• Accuracy
• Precision
• Range
• Reaptability

________________ represents the highest possible value that can be measured by an instrument

• Measurement
• Range
• Accuracy
• Precision

The ease with which observation can be made accurately is reffered to as ______________

• Readability
• Sensitivity
• Accuracy
• Precision

__________________ is defined as the closeness of agreement among the number of consecutive measurement of the output for the same value of input under the same operating conditions

• Accuracy
• Precision
• Range
• Reaptability

Prefix used for the multiplication factor 10 -9 is

• Mega
• Micro
• Nano
• Giga

The prefix ‘mega’ is used to denote

• 10 6
• 10 3
• 10 9
• 10 12