Question and Answers part -1
Q.1. What is the slope of staircase ?
Ans. 25 to 40° (As per IS 456 : 2000).
Q.2. Ring and ball test is conducted on which construction material ?
Ans. Bitumen
Q.3. The Normal Consistency of Portland Cement ?
Ans. 25% 
Q.4. What is the extra length in Bent up bars ?
Ans. 0.45X
Q.5. What is full form of EGL ?
Ans. Existing ground level.
Q.6. A first class brick should not absorb water more than ?
Ans. 20%
Q.7. Number of bricks used in 1 cubic meter of brickwork ?
Ans. 500 nos
Q.8. Minimum hook length as per IS Code ?
Ans. 75mm 
Q.9. The Expansion in Portland Cement is tested by.....
Ans. Soundness Test
Q.10. According to IS Code, Full Strength of Concrete is achieved after ?
Ans. 28 Days
Q.11. What is 53 in cement 53 - Grade ?
Ans. Strength of cement 53N/mm²
Q.12. What is full form of EIA ?
Ans. Environmental Impact Assessment.
Q.13. Full form of 1 BHK ?
Ans. 1 Bedroom, 1 Hall, 1 Kitchen
Q.14. Calculation weight of Steel Bar ?
Ans. Formula of weight of Steel Bar = (D²/162)✖L
Where D = Diameter of bar in mm
L = Length of bar in m
Q.15. Minimum Grade of concrete used for RCC ?
Ans. M20
Q.16. What should be the duration of shuttering removal ?
Ans. Shuttering removal period :
- Side of wall, column and outer side of beam - 24 to 48 hr
- Beam soffits - 7 days
- Slab - 3 days
- Removal of props of slab
span < or = 6m - 14 days
Q.17. What are the concrete tests ?
Ans. Slump test of concrete, compressive strength test, Water Permeability Test, Water Absorption Test.
Q.18. What is the unit weight of steel ?
Ans. The unit weight of steel is 78.5 KN/m³
Q.19. What is the unit weight of concrete ?
⇢ RCC - 25 KN/m³
⇢ PCC - 24 KN/m³
Q.20. Compressive Strength of Brick ?
Ans. First class brick - 105 kg/cm²
Second class Brick - 70 kg/cm²
Fire brick - 125 kg/cm²
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