The GATE Grind

GATE 2023 CE (CE1) – Question 51

Highway Pavements · Highway materials and tests · 2 marks · Multiple select

Which of the following options match the test reporting conventions with the given material tests in the table?

Test reporting conventionMaterial test
(P) Reported as ratio(I) Solubility of bitumen
(Q) Reported as percentage(II) Softening point of bitumen
(R) Reported in temperature(III) Los Angeles abrasion test
(S) Reported in length(IV) Flash point of bitumen
(V) Ductility of bitumen
(VI) Specific gravity of bitumen
(VII) Thin film oven test
  1. (P) - (VI); (Q) - (I); (R) - (II); (S) - (VII)
  2. (P) - (VI); (Q) - (III); (R) - (IV); (S) - (V)
  3. (P) - (VI); (Q) - (I); (R) - (II); (S) - (V)
  4. (P) - (VI); (Q) - (III); (R) - (IV); (S) - (VII)

Practise this question in The GATE Grind →

Show answer and explanation

Correct answer: (B) (P) - (VI); (Q) - (III); (R) - (IV); (S) - (V); (C) (P) - (VI); (Q) - (I); (R) - (II); (S) - (V)

Explanation

The specific gravity is a ratio (VI). Solubility of bitumen and the Los Angeles abrasion value are both percentages (I and III). The softening point and the flash point are temperatures (II and IV). The ductility is the length the bitumen stretches (V). The thin film oven test is reported as the percentage loss in mass, so it is not a length (this rules out A and D). Options B and C both match every item correctly.