site engineer interview question | technical interview questions for civil site engineer|technical interview questions for civil site engineer pdf
site engineer interview question | technical interview questions for civil site engineer
FRESHERS ( LEVEL -2 ) Q & A
For Experienced Engineer Interview Question scroll down
Technical interview questions for civil site engineer
1. What is the Unit Weight of RCC?
2500 kg/ m³
2. One Acre = ____________Sq. ft.
43560 Sq. ft.
3. What is the Full Form of UTM?
Universal Testing Machine
4. One square meter = _________ Sq. ft?
10.76 Sq. ft
5. One Hectare = _______Acres
2.47 Acres
6. Maximum Free fall of concrete allowed is______?
1.5 m
7. A First Class Brick Should Absorb Water More than?
20 %
8. Number of Bricks used in 1 Cubic meter of Brickwork?
500 Nos.
9. List down the Ratio of Grades M5, M7.5, M10, M15, M20, M25, M30, M35, M40?
The grades are having the following ratios:
M5 – 1:5:10
M7.5 – 1:4:8
M10 – 1:3:6
M15 – 1:2:4
M20 – 1:1.5:3
M25 – 1:1:2
M30, M35, M40 – Design Mix Followed
10. What are the types of curing, what is membrane curing and what is the rate of application?
- Types of curing are the follows:
- Water curing.
- Membrane curing.
- Steam curing method.
- Cold weather curing method.
11. What do you know about “TMT”?
TMT stands for “Thermo Mechanically Treated”.
YESTERDAY JOBS
For Experienced Engineer Interview Question
12 What is BBS (Bar Bending Schedule)?
The process of cutting and bending of steel rods or reinforcement recommended by the structural engineer is known as a bar bending schedule (BBS).
13. Why BBS is important?
The main purpose of BBS is to clarify the location and
nature of steel rod in the structural member like a beam,
slab, column, stairs & Footing
14. Standard Size of steel bars in RCC Work?
15. Grades of TMT steel?
TMT bars are typically graded as Fe 415, Fe 500, Fe 550, Fe 600, etc. where the numbers indicate the level of stress that must be applied to deform it.
For example, Fe 500 starts to deform when a pressure of 500 Newton/mm 2 is applied to it.
16. Different grades of steel Application of TMT Steel?
Fe-415, Fe-500, Fe-550, and Fe-600 are the different grades of TMT Steel.
Fe - 415: Due to its higher uniform elongation, it can be used in RCC Constructions in corrosion and as well as an earthquake-prone zone.
Fe - 500: The high corrosion resistance, excellent bendability, and great resistance on dynamic loading of Fe - 500, it is used in RCC constructions in buildings, bridges, and other concrete structures.
Fe - 550: It has similar properties of Fe - 500, but differs in yield and tensile strength. It is also used in RCC construction that is exposed to coastal, marine, or underground environments.
Fe - 600: Since it provides better toughness and has more yield and tensile strength when compared to other TMT Steel grades, it is used for large RCC construction purposes
17. Why is steel used on concrete Structure?
Concrete is strong in compression but weak in tension. This is the reason we place the steel in concrete. It allows the concrete to withstand tensile forces that would otherwise crack apart unreinforced concrete. Concrete is said to be reinforced when it contains a steel bar. The reinforcing bar must be totally encased in concrete to a minimum depth of 50mm or 2″ to prevent contact with water and prevent from rusting of the steel.
18. What is a clear cover?
The clear cover is simply the small distance between the outside surface of concrete and the reinforcement. i.e. steel rod provided inside of that concrete structure. This clear cover for different structures depends upon the design of a structure and how much is its length, width, and load on the structure.
19. Types of Clear cover
1) Nominal Cover: It is the distance measured from the face of the member to the outermost face of the reinforcement including Stirrups or links. It is the dimension shown in drawings and detailing.
2) Effective Clear cover: This is the distance measured from the face of the member to the centre of the area of the main reinforcement, which is tension or compression reinforcement. This is the dimension usually used for design calculations.
Effective Cover = Clear cover + Also, 𝐷𝑖𝑎𝑚𝑒𝑡𝑒𝑟 𝑜𝑓 𝑆𝑡𝑖𝑟𝑟𝑢𝑝𝑠 𝑙𝑖𝑛𝑘𝑠 + Effective Cover = Overall depth - effective depth. 1 2 x Dia. of main bars
20. Why is clear cover important?
If I say you in one line, then it will be “clear cover is provided to make the RCC structure long-lasting".
But let us discuss some of the importance of clear cover,
It is provided to prevent steel rods inside the structure from corrosion due to weather and thermal effects.
For example, in the case of a fire in the building, the metal begins to melt and lose its strength. So, the clear cover acts as an insulator and prevents melting.
● Also in case of weather, it acts as a cover that does not let steel come in contact with the atmosphere and prevents it from corrosion.
● It makes the bond between the steel and concrete which makes it capable of bearing compression as well as tensile force.
21 How much should be a clear cover of the structure?
It depends on the types of structure but the minimum clear cover recommended for the different structures is given as,
- The minimum clear cover of the beam should be 25 mm and the column should be 40 mm.
- The minimum clear cover of the slab should be 15 mm. But, for safety rather than economical, we should provide 20 mm.
- The minimum clear cover for footing should be above 50 mm. because all the loads of superstructure are transferred to the ground through the footing. So, it should be more.
- The minimum clear of the column should be 40 mm.
- The minimum clear cover for the raft foundation should be 75 mm.
- The minimum clear cover for the staircase should be 15 mm.
- The minimum clear cover for a retaining structure or retaining wall should be 20 mm.
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