1.

Which of the following statement is/are correct?a) Penetration test on bitumen is carried out at 27°C.b) Ductility test in bitumen is carried out at 27°C.c) In softening point test on bitumen rate of increase of temperature is 2°C per minute.d) The rate of pulling of standard briquette mould specimen in ductility test is 15 mm per minute.

A. (a) only
B. (b) only
C. (c) only
D. (a) and (d) only
Answer» C. (c) only


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