CuriousTab
Search
CuriousTab
Home
Aptitude
Computer
C Programming
C# Programming
C++ Programming
Database
Java Programming
Networking
Engineering
Biochemical Engineering
Biochemistry
Biotechnology
Chemical Engineering
Civil Engineering
Computer Science
Digital Electronics
Electrical Engineering
Electronics
Electronics and Communication Engineering
Mechanical Engineering
Microbiology
Technical Drawing
GK
Current Affairs
General Knowledge
Reasoning
Data Interpretation
Logical Reasoning
Non Verbal Reasoning
Verbal Ability
Verbal Reasoning
Exams
AIEEE
Bank Exams
CAT
GATE
IIT JEE
TOEFL
Jobs
Analyst
Bank PO
Database Administrator
IT Trainer
Network Engineer
Project Manager
Software Architect
Discussion
Home
‣
Civil Engineering
‣
Concrete Technology
Comments
Question
Joints in concrete structures, are provided
Options
A. to reduce the tensile stresses likely to be developed due to evaporation of water
B. to minimise the change in the dimensions of the slab
C. to minimise the necessary cracking
D. all the above.
Correct Answer
all the above.
Concrete Technology problems
Search Results
1. If the effective working time is 7 hours and per batch time of concrete is 3 minutes, the output of a concrete mixer of 150 litre capacity, is
Options
A. 15, 900 litres
B. 16, 900 litres
C. 17, 900 litres
D. 18, 900 litres
Show Answer
Scratch Pad
Discuss
Correct Answer: 18, 900 litres
2. The bulk density of aggregates, is generally expressed as
Options
A. tonnes/cubic metre
B. kg/cubic metre
C. kg/litre
D. g/cm
3
E. none of these.
Show Answer
Scratch Pad
Discuss
Correct Answer: kg/litre
3. Slump test of concrete is a meausre ofits
Options
A. consistency
B. compressive strength
C. tensile strength
D. impact value.
Show Answer
Scratch Pad
Discuss
Correct Answer: consistency
4. The grade of concrete M 150 means that compressive strength of a 15 cm cube after 28 days, is
Options
A. 100 kg/cm
2
B. 150 kg/cm
2
C. 200 kg/cm
2
D. 250 kg/cm
2
E. 300 kg/cm
2
Show Answer
Scratch Pad
Discuss
Correct Answer: 150 kg/cm
2
5. The type of aggregates of same nominal size, which contain less voids when compacted, are
Options
A. rounded spherical
B. irregular
C. flaky
D. none of these.
Show Answer
Scratch Pad
Discuss
Correct Answer: rounded spherical
6. The process of mixing, transporting, placing and compacting concrete using Ordinary Port land Cement should not take more than
Options
A. 30 minutes
B. 40 minutes
C. 60 minutes
D. 75 minutes
E. 90 minutes.
Show Answer
Scratch Pad
Discuss
Correct Answer: 30 minutes
7. If the average compressive strength is 4000 kg/cm
2
and standard deviation is 500, the co-efficient of variation is
Options
A. 10%
B. 12.5%
C. 15%
D. 18.5 %
E. 20%
Show Answer
Scratch Pad
Discuss
Correct Answer: 12.5%
8. Ordinary Portland cement is manufactured from
Options
A. lime stone and clay
B. gypsum and lime
C. pozzolana
D. lime, pozzolana and clay.
Show Answer
Scratch Pad
Discuss
Correct Answer: gypsum and lime
9. Pick up the incorrect statement from the following:
Options
A. Tricalcium silicate (C
3
S) hydrates rapidly
B. Tricalcium silicate (C
3
S) generates more heat of hydration
C. Tricalcium silicate (C
3
S) develops early strength
D. Tricalcium silicate (C
3
S) has more resistance to sulphate attack
E. None of these.
Show Answer
Scratch Pad
Discuss
Correct Answer: Tricalcium silicate (C
3
S) has more resistance to sulphate attack
10. Sand requiring a high water cement ratio, belongs to
Options
A. Zone I
B. Zone II
C. Zone III
D. Zone IV.
Show Answer
Scratch Pad
Discuss
Correct Answer: Zone I
Comments
There are no comments.
Enter a new Comment
Save
More in Civil Engineering:
Advanced Surveying
Airport Engineering
Applied Mechanics
Building Construction
Building Materials
Concrete Technology
Construction Management
Docks and Harbours
Elements of Remote Sensing
Engineering Economy
Estimating and Costing
GATE Exam Questions
Highway Engineering
Hydraulics
Irrigation
Railways
RCC Structures Design
SI Units
Soil Mechanics and Foundation Engineering
Steel Structure Design
Strength of Materials
Structural Design Specifications
Surveying
Theory of Structures
Tunnelling
UPSC Civil Service Exam Questions
Waste Water Engineering
Water Resources Engineering
Water Supply Engineering