24) What is the lower limit of size, if dimension is stated as 25 (+0.25/-0.025) in a drawing?

25) Which part indicates the reading of dial test indicates?

26) Which scraper is used to scrape the centre portion of large flat surface?

27) Which instrument is used to magnify small variation in sizes by means of pointer on a graduated dial?

28) What is the number of fundamental deviation in the BIS system ?