Engineering > QUESTIONS & ANSWERS > CVEN 9824: ADVANCED MATERIALS TECHONOLOGY; QUIZ #2__SOLUTIONS-Already Graded A+ (All)

CVEN 9824: ADVANCED MATERIALS TECHONOLOGY; QUIZ #2__SOLUTIONS-Already Graded A+

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THE UNIVERSITY OF NEW SOUTH WALES SEMESTER 2 2017 CVEN 9824: ADVANCED MATERIALS TECHONOLOGY Quiz #2 (From Water and Aggregates to Shrinkage) (1) TIME ALLOWED – 45 minutes (2) THIS QUIZ PAPER HA ... S 5 PAGES, INCLUDING THE COVER PAGE (3) THIS IS A CLOSED BOOK EXAMINATION (4) TOTAL MARKS AVAILABLE : 70 MARKS (5) TOTAL NUMBER OF QUESTIONS : 8 (6) ALL ANSWERS MUST BE GIVEN IN THE SPACES PROVIDED IN THIS QUIZ PAPER (7) THIS PAPER MAY NOT BE RETAINED BY CANDIDATE (8) CANDIDATES MAY BRING TO THE QUIZ UNSW APPROVED CALCULATORSNAME: STUDENT ID: 2 MARK The total marks will be normalized based on 15 marks. /70 Question 1 (30 Marks) Answer the following true-false questions. Correct response = 3 Marks / No response = 0 Marks / Wrong Response = 0 Marks. True False 1 When using the same content of water, an angular and rough textured aggregate generally less workable than a rounded and smooth one. X 2 Aggregate moisture condition is not a critical factor when batching concrete because the amount of absorption is negligible compared to the water content in mix design. X 3 We can generally use water reducing admixture to improve both workability and strength at the same time. X 4 Air entraining agent can not only increase the air content but also workability. X 5 Water content is the most important factor to control the workability. X 6 Plastic settlement cracking occurs due to the fast evaporation of water on the surface. X 7 Chemical shrinkage includes the autogenous shrinkage. X 8 Immersing a hardened concrete in water should be avoided because it changes water-to-cement ratio. X 9 Both plastic shrinkage and drying shrinkage is [Show More]

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