1
GATE CE 2017 Set 2
MCQ (Single Correct Answer)
+1
-0.3
Let the characteristic strength be defined as that value, below which not more than 50% of the results are expected to fall. Assuming a standard deviation of 4 MPa, the target mean strength (in MPa) to be considered in the mix design of a M25 concrete would be
A
18.42
B
21.00
C
25.00
D
31.58
2
GATE CE 2015 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Workability of concrete can be measured using slump, compaction factor and Vee bee time. Consider the following statements for workability of concrete:

(i) As the slump increases, the Vebe time increases

(ii) As the slum increases, the compaction factor increases

Which of the following is TRUE?
A
Both (i) and (ii) are True
B
Both (i) and (ii) are False
C
(i) is True and (ii) is False
D
(i) is False and (ii) is True
3
GATE CE 2015 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Consider the following statements for air-entrained concrete:

(i) Air-entrainment reduces the water demand for a given level of workability

(ii) Use of air-entrained concrete is required in environments where cyclic freezing and thawing is expected.

Which of the following is TRUE?
A
Both (i) and (ii) are True
B
Both (i) and (ii) are False
C
(i) is True and (ii) is False
D
(i) is False and (ii) is True
4
GATE CE 2014 Set 2
Numerical
+1
-0
The flexural tensile strength of M25 grade of concrete, in N/mm2, as per IS:456-2000 is __________.
Your input ____
GATE CE Subjects
Fluid Mechanics and Hydraulic Machines
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12