QUES: The tests carried out for each of the industry limits were 1 API CJ4 Valve train wear test Soot abrasive wear 2 MB 22831 Severe engine wear test 3

correct the punctuation.

CORRECTED: The tests carried out for each of the industry limits were: 1. API CJ-4 Valve train wear test Soot abrasive wear 2. MB 228.31 Severe engine wear test 3.

QUES: Lighting Lighting in rooms

correct the punctuation.

CORRECTED: Lighting + , Lighting in rooms

QUES: In 1852 when only 37 years of age Ada died of cancer

correct the punctuation.

CORRECTED:
In 1852, when only 37 years of age, Ada died of cancer.