As per IS (IS 12600 : 1989) specification for initial setting time of Low heat Portaland Cement (LHPC), when tested by the Vicat apparatus method described in IS 4031 (Part 5): 1988, of the following statement is given.
"The initial setting time of LHPC, shall not be less than 30 minutes"
Check whether the statement is correct. If incorrect, give the correct statement.
1
Incorrect statement ; "The initial setting time of LHPC, shall not be less than 60 minutes"
2
Incorrect statement ; "The initial setting time of LHPC, shall not be less than 20 minutes"
3
Correct statement. No modification
4
Incorrect statement ; "The initial setting time of LHPC shall not be greater than 60 minutes"
5
Question Not Attempted