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SRI SIVANI COLLEGE OF ENGINEERING Department of Civil Engineering
Viva Questions for Laboratory Construction Technology Department of Civil Engineering
Academic year: 2016-17 Year: II
SEM-II
Experimet1: Fineness of cement & Normal consistency 1) What do you mean by fineness? 2) Which type of sieve used in fineness test? 3) According to IS, How munch fineness of cement is preferred? 4) According to IS, How munch residue of cement is preferred? 5) What is the key role of fineness of cement in strength? 6) What is the advantage of fineness? 7) What you mean by normal consistency? 8) Which type of apparatus used in consistency test? 9) Based on which principle vicat apparatus worked? 10) Which type of needle used in consistency test? 11) What is the diameter of Plunger? 12) How many needles present in vicat apparatus? 13) According to IS, How much consistency of cement is preferred?
Experiment 2: Initial & Final setting time of cement 1) What do you mean by setting time? 2) What do you mean by initial setting time? 3) What do you mean by final setting time? 4) Which type of apparatus used in cement setting test? 5) Which type of needle used in intial setting test? 6) Which type of needle used in final setting test? 7) What is the diameter of initial setting time needle? 8) What is the diameter of final setting time needle? 9) How much of water added to cement in setting time of cement test? 10) According to IS, How much of initial setting time of cement is preferred? 11) According to IS, How much of final setting time of cement is preferred? 12) How can you determined intial setting time as per experiment? 13) How can you determined final setting time as pe r experiment?
Experiment3: Specific gravity of cement & Soundness of cement 1) 2) 3) 4) 5)
What do you mean by specific gravity? Why we have to done specific gravity experiment of cement by using kerosene? Which type of apparatus used in specific gravity of cement test? What is the capacity of pycnometer? According to IS, How much of specific gravity of cement is preferred?
6) What do you mean by soundness? 7) Which type of apparatus used in soundness of cement test? 8) According to IS, How much of soundness of cement is preferred? 9) What is the disadvantage, if soundness is too high? 10) Which components enhance the soundness property in cement? 11) Why we have to test the soundness of test?
Experiment4: Fineness modulus of fine aggregate 1) What do you mean by fine aggregates? 2) What is the purpose of grain size distribution? 3) What do you mean by fineness modulus? 4) How can you calculate FM? 5) What do you understand by Index of FM? 6) What indicates %finer value? 7) According to IS, how much FM value for fine aggregate is needed?
Experiment 5: Fineness modulus of coarse aggregate 1) What do you mean by coarse aggregates? 2) What is the purpose of grain size distribution? 3) What do you mean by fineness modulus? 4) How can you calculate FM? 5) What do you understand by Index of FM? 6) What indicates %finer value? 7) According to IS, how much FM value for coarse aggregate is needed?
Experiment6: Bulking of sand
1) What do you mean by bulking of sand? 2) Why you have to estimate bulking? 3) What is the purpose of calculate bulking of sand? 4) What is the key role, bulking plays in mixing design of concrete? 5) Initially how much sand have to taken in bulking experiment? 6) According to IS, How much of maximum bulking is preferable? 7) For sea sand, how much of bulking of sand will occur? 8) W hat is the practical significance of bulking sand?
Experiment7: Compressive strength of cement 1) What do you mean by compressive strength? 2) Why we have to estimate compressive strength? 3) What are the units for compressive strength? 4) Standard dimensions for cement cubes? 5) What of proportion of cement and sand have to use? 6) How much of water have to added to prepare mix? 7) What do you mean by curing? 8) Why we have to do curing? 9) What are the method to do curing process? 10) How much of strength will get for 3days,7days,28days? 11) What are the IS recommendation for compressive strength of cement?
Experiment8: Compressive strength of concrete 1) What do you mean by compressive strength? 2) Why we have to estimate compressive strength?
3) What are the units for compressive strength? 4) Standard dimensions for concrete cubes? 5) What of proportions of concrete have to use? 6) How much of water have to added to prepare for different mixes? 7) What do you mean by curing? 8) Why we have to do curing? 9) What are the method to do curing process? 10) How much of strength will get for 3da ys,7days,28days for different mixes? 11) What are the IS recommendation for compressive strength of concrete? 12) What is the difference between nominal mixes and design mixes? 13) What do you mean by characteristic strength? 14) What are the different mix proportions? 15) Which code book have to consider for water adding in concrete?
Experiment9: Workability of concrete by Slump cone test 1) What do you mean by workability? 2) What are the factors, which are influenced workability? 3) What are the method to check workability? 4) What is the practical significance of workability? 5) What are the limitations of workability of concrete? 6) What is the height of sliump cone? 7) What are the upper and lower diameters of slump cone? 8) What are the uses of slump rod? 9) What is the diameter of slump rod? 10) How many layers have to laid in slump cone test? 11) How many blows have to give in slump test? 12) How can you analyse workability nature by slump values? 13) What do you mean by slump? 14) What are the different types of slumps? 15) What do you mean by true, shear, and collapsible slump? 16) What do you mean by segregation?
17)
What do you mean by bleeding?
Experiment10: Workability of concrete by Compaction factor test 1) What do you mean by workability? 2) What are the factors, which are influenced workability? 3) What are the method to check workability? 4) What is the practical significance of workability? 5) What are the limitations of workability of concrete? 6) What is the height between hopers of compaction factor test? 7) What are dimensions of compaction factor cylinder? 8) What is the compaction factor? 9) What do you mean partially compacted concrete? 10) What do you mean by fully compacted concrete? 11) How can you analyse workability nature by CF values? 12) What do you mean by segregation?
13)
What do you mean by bleeding?
Experiment11: Specific gravity of fine aggregate 1) 2) 3) 4) 5) 6)
What do you mean by specific gravity? Which devise have to use to calculate specific gravity of sand? Which parameter can analyse by using specific gravity? What is the capacity of pycnometer? How can you derive formula for specific gravity of fine aggregate? What are the IS recommendations for Specific gravity of fine aggregate?
Experiment12: Specific gravity of coarse aggregate 1) 2) 3) 4) 5) 6)
What do you mean by specific gravity? Which devise have to use to calculate specific gravity of coarse aggregate? Which parameter can analyze by using specific gravity? What is the capacity of iron bucket? How can you derive formula for specific gravity of fine aggregate? What are the IS recommendations for Specific gravity of co arse aggregate?
