please i need the solution of the 3 problems clearly

Figure 1 represents a tachometer used in testing rotary equipment. The operational range is 50rpm. The operator must read the scale to the nearest. 5rpm (the scale unit is .5rpm ). Part A. Critically evaluate the instrument dial in Figure 1 on the following points, indicating poor design practices if present. 1. Number of scale markers: 2. Numerical progression: 3. Design of the pointer: 4. Other aspects of the dial: Part B. Redesign the dial in the space provided at the right in Figure 1 following recommended design practices. Put in all major and/or numbered markers., Minor markers need be illustrated only between the first two major or numbered markers. Flgure 1. Tachometer used in teatin rotary equipment. The scale unit is 0 . rpm. The operational range is 50rpm. Flgure 2. Steam gauge used to measure pressure in a boller. The scale unit is 1/20 th of a pound. The maximum pressure possible is two pounds. Problem 2 Figure 2 represents a steam gauge used to measure pressure in a boiler. The maximum pressure possible is two pounds. The scale must be read to the nearest 1/20 th or .05 of a pound. Part A. Critically evaluate the instrument dial in Figure 2 on the following points, indicating poor design practices if present. 1. Number of scale markers: 2. Numerical progression: 3. Design of the pointer: 4. Other aspects of the dial: Part B. Redesign the dial in the space provided in Figure 2 following recommended design practices. Put in all major and/or numbered markers. Problem 3 Illustrate how the quantitative instrument illustrated below in Figure 3 can be converted to a qualitative instrument by modifying its dial face. The desired interpretation of the quantitative readings are indicated in the space adjacent to the illustration. Flgure 3, Quantitative instrument to be con. verted to a qualitative instrument. (For this purpose, show the changes on the instrument. itsolt.)