Match List-I (Type of cement) with List-II (Characteristics) and select the correct answer using the codes given below the lists: List-I A. Rapidly hardening cement B. Low heat Portland cement C. Portland pozzolana cement D. Sulphate resisting cement List-II 1) Lower C3A content than that in OPC 2) Contains pulverized fly ash 3) Higher C3S content than that in OPC 4) Lower C3S and C3A contents than that in OPC
Question 2
Math List-I with List-II and select the correct answer using the codes given below the lists:
List-I(Type of cement)
P. Low heat cement
Q. Rapid hardening cement
R. High Alumina cement
S. Sulphate resisting cement
List-II (Uses)
1) Refractory bricks
2) Repair of concrete pavements
3) Concrete under water
4) Heavy raft footing
Question 3
Statement (I): Finer grinding of cement results in early development of strength.
Statement (II): The finer the cement, the higher is the rate of hydration.
Question 4
Direction: In the following question consists of two statements Assertion(A) and Reason(R). You have to read the statements carefully and select the answers to these questions using the options below.
Assertion (A): The amount of cement paste should be sufficient to cover the surface of all particles for proper workability and bond . Reason(R): the water cement ratio is fixed accordingly.
Question 5
Direction: In the following question consists of two statements Assertion(A) and Reason(R). You have to read the statements carefully and select the answers to these questions using the options below.
Assertion (A): Low heat Portland cement is used in dam construction. Reason(R): low heat Portland cement attains higher 28 days strength than ordinary Portland cement.
Question 6
From the pairs given below, select the one which is correctly matched.
Question 7
The bitumen is mixed with a volatile diluent to
Question 8
The properties bitumen should possess to be used as a highway material are
(i) High temperature susceptibility
(ii) Good adhesive properties
(iii) High softening point
(iv) Sufficient flexibility
Question 9
Statement 1: Higher the ductility of bituminous binder, more will be physical interlocking of aggregate – bitumen mixes.
Statement 2:The binder lacking ductility would crack and permit water to enter into the pavement.
Question 10
Statement 1: The load required to cause 2.5 and 5mm penetration in a CBR test is 66 kg and 85 kg, respectively. The CBR value of the material is 4.13%.
Statement 2: CBR is defined as the ratio of load required to penetrate a soil sample to the load required to penetrate a standard specimen by the same amount of penetration.
