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Question
a)tell density of steel , concrete, bricks , sand and 
aggregates.? b) what is knife test for wooden doors ? c) 
what is the meaning of term abrasion? what is tested in it? 
d) why pile foundation is provided in BCS?e) By total 
station what activities can be performed and on what 
principle it works? f) what is creep?
 Question Submitted By :: Civil-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
density of steel is 78.5 kN/m^3
density of concrete (light)-5 to 18 kN/m^3
(heavy)-18 to 25 kN/m^3
density of bricks: 15 to 18 kN/m^3
density of sand: 14.5 to 16.5 kN/m^3
density of aggregate:(gravel)-14 to 17 kN/m^3
(granite)-25 to 27 kN/m^3
 
Is This Answer Correct ?    32 Yes 8 No
Suresh
 
Answer
# 2
CREEP
When load acts on any structural member (ex: beam, slab) strains develops that produces both compressive and tensile stresses. Tensile stresses are resisted by steel and concrete takes all the compressive stresses. These compressive stresses in concrete is the cause of deflection. This deflection takes alot of time to occur and hence is referred to as long term deflection or Creep.
 
Is This Answer Correct ?    13 Yes 4 No
Sunshine
 
 
 
Answer
# 3
continution to the above answer.
the process of wearing down or rubbing away by means of friction is called abrasion.
the resistance to wearing is found by the loss of the material
through 1.7mm sieve.

the black cotton soil has a mineral named montmorillonite,which has extensive shrinkage and swelling
characteristics with the variation of the moisture content.
as this shrinkage and swelling reduces with the increase of
the depth (about 1.5m depth no variation) we adopt pile
foundation for such soils.

by total station the measurement of horizontal, vertical angles and the sloping distances can be measured.
it works on the principle of electronic distance
measurement which based on measuring the phase difference between transmitted and reflected waves.

the increase in deformation (strain) under sustained
load (stress) is called creep.
 
Is This Answer Correct ?    10 Yes 3 No
Suresh
 
Answer
# 4
steel 7769kg/m^3, concrete 2400kg/m^3, bricks 1794kg/m^3,
sand 1600kg/m^3, aggregates 1922kg/m^3,
abrasion is wearing down or rubbing away by means of friction.
test in abrasion is loss of material through 1.7mm sieve.
pile foundation is use in bcs because of the mineral (montmorillonite)which has extensive shrinkage and swelling.
total station is use in measurement of horizontal, vertical angle, and slope distance. it work with principle of electic distance, measuement which based on measuring the difference between transmitted and reflected waves.
Creep when load act on a structural member stain develops that produces both compressive and tensile stresses. tensile stresses are resisted by steel and concrete takes all the compressive stresses.
 
Is This Answer Correct ?    0 Yes 0 No
Amoo Abiodun
 

 
 
 
Other Civil Engineering Interview Questions
 
  Question Asked @ Answers
 
what is the procedure to make compressive strength test for concrete cube in lab   3
what grade of concrete to be used for lintel when reinforced with bamboo in place of steel?????????   1
how did find the quantity of cement ,sand , and aggregate in concreat which is givan by volume   2
what is the process of repair the structure in whitch reinforcement is open   4
If concrete fails in cube strength as well as non distactive test? what to do? for example grade of concrete is M35, cube strength is 26.1 n/mm2 after 28 days and non districtive test strength is 28.1 n/mm2 after 28 days. i am not distroying the rcc memeber.   2
among the strectcher, header, english and flemish bond which has greater strength? where these bonds are preferred?????   2
how to start basic designing in structure..procedure to knw basic start to do structural designs in civil field?   2
In IS:456-2000 the workability of concrete is given in mm (slump)in cl.7.1. In IS:10262-1982, cl.3.3.4 & table-6 says +/- 3 percent adjustment is required in the quantity of water (calculated as per table-4 or 5), for each increase or decrease in the value of compacting factor (i.e. workability of concrete) by 0.1. How it is possible to calculate the exact quantity of water required for a particular grade of concrete? What is the relation between Slump & Compacting factor of concrete? Unitech 1
which purpose we are provide groove at sides of door & window frames, columns & beams   1
suppose we have a tendency to make a hole on the surface of the beam, than where we goes to make it?   3
what is the max. dia of steel can be used in open footings? TCS 2
In beams why the depth is > width L&T 2
 
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