Discussion
Consider the following statements about the barium activity number.
1. It compares barium hydroxide uptake against an unmercerised control.
2. A value of about 115 or more indicates good mercerisation.
3. A value of 100 indicates complete mercerisation.
Answer: D
Correct answer: 1 and 2 only
Statements 1 and 2 are correct: the test compares barium hydroxide uptake against an unmercerised sample of the same cloth, and 115 or above indicates a good result. Statement 3 has the scale wrong - 100 is the unmercerised control by definition, so a value of 100 means no mercerisation has taken place at all. Full mercerisation is usually taken as 150 or more.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development