For grade IT7, value of tolerance is equal toa)7 ib)10 ic)16 id)25 iCo...
**Explanation:**
In the context of grade IT7, the value of tolerance refers to the allowable deviation or variation from a specified dimension or measurement. Tolerances are important in engineering and manufacturing as they ensure that the finished product or component will fit and function properly within the desired parameters.
The value of tolerance for grade IT7 is equal to 16i. This means that the tolerance allowed for a dimension or measurement in grade IT7 is 16 times the basic unit of measurement, which is denoted by 'i'. In this case, 'i' represents the basic unit of measurement, such as millimeters or inches.
To understand this concept better, let's break down the options provided in the question:
a) 7i: This option suggests that the tolerance value is 7 times the basic unit of measurement. However, the correct value for grade IT7 is 16i, not 7i.
b) 10i: Similarly, this option suggests a tolerance value of 10 times the basic unit of measurement. However, the correct value for grade IT7 is 16i, not 10i.
c) 16i: This is the correct answer. It indicates that the tolerance value for grade IT7 is 16 times the basic unit of measurement.
d) 25i: This option suggests a tolerance value of 25 times the basic unit of measurement. However, the correct value for grade IT7 is 16i, not 25i.
Therefore, the correct answer is option 'C', which states that the value of tolerance for grade IT7 is equal to 16i.
For grade IT7, value of tolerance is equal toa)7 ib)10 ic)16 id)25 iCo...
It is standard value
it7= 16i