G R Infraprojects Senior Project Manager Interview Questions, Process, and Tips

Q1. Two types road 1 Flexible pavement 2 Rigid pavement Before new project start Surveying, NGL,Encroachment , OGL
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Q2. Flexible pavement:- 1:- EMBANKMENT:- Take thicknesses 3m approximately as per site conditions 95% compaction 1:- large size soil particles 75mm lumps and cloud. Liquid limit <50%, plastic limit<25% Swel...read more
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The question is about the specifications of different layers in a flexible pavement.
• The embankment layer has a thickness of 3m and is compacted at 95% with large size soil particles and effective CBR as per design.

• The subgrade layer has a total thickness of 500mm and is compacted at 97% with large size soil particles and effective CBR as per design.

• The GSB layer has a total thickness of 300mm and is a mixture of aggreg...read more
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Q3. Emulsion:- Prime coat:- low viscous cut back bitumen on wmm surfaces area and filling pores and void. Tackcoat:- Light application bitumen , asphalt, emulsion and diluted water on wmm surfaces area.
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Q4. DBM:- it total thickness of 150mm compacted two layer 75mm and 75mm It mix with aggregate 20mm to 28mm and bitumen VG30 GRADE.apply on si
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Q5. Tackcoat;- light application bitumen, asphalt,emulsion and dilute water on DBM Surfaces area. BC:- It is total thickness of 50mm compacted ,aggregate size 13.1mm and bitumen VG30 grade on DBM. Seal co...read more
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Q6. Laying of bitumen concete. :-130 degree celceious to 150 degree celceious. Rolling on bitumen concete :-80 degree celceious 100 degree celceious
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Q7. Rigid pavements:- 1 :- DLC= 150MM 2:-PQC = 300MM
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Q8. DLC:-Material sutabilitey 1:- Aggregate size 26.5 mm 2:- water absorption max2% 3:- Soundness test Naso4 - 12% Mgso4-18% 4:- Angle of abr...read more
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Q9. DESINGN PROCEDURE :- 1:- Use M15 grade concrete. Aggregate and cement ratio 1:2 2:- The minimum cement content 150kg percum. If flayash is more than 20% the minimum cement contents 120 kg percum. 3:- T...read more
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Design procedure for laying M15 grade concrete with specific requirements for cement content, compressive strength, and compaction.
• Use M15 grade concrete with aggregate and cement ratio of 1:2

• Minimum cement content of 150kg per cum, or 120kg per cum if flyash is more than 20%

• Ensure compressive strength of 10MPA after 7 days curing, with no sample below 7.5MPA

• Ensure DLC premix batching plant material is homogeneous and ...read more
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Q10. PQC:- Material sutabilitey 1:- Aggregate size 31.5mm Material sutabilitey of pqc from Soundness test to sand equivalent
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Q11. Design procedure of PQC:- Use M40 grade concrete. 1:- The minimum cement content 360kg percum. If flyash more than 20% the minimum cement contents 310 kg percum. 2:-The flexuar strength of cement ...read more
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Design procedure for PQC using M40 grade concrete
• Minimum cement content of 360kg per cum

• Flexural strength of 4.5MPA and compressive strength of 40MPA after 28-day curing

• Dowel bars and tie bars provided for load transfer and prevention of cracking and deflection

• PQC mix prepared in pre-mix batching plant and transported to site

• Separation membrane and texturing and sawing operations performed for proper finishing

• 28-day cu...read more
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Q12. DIFFERENT TYPES OF CARRIAGE WAY 1 :- Single lane- 3.75 m 2:- Multlane;- 3.50m 3:- Inter mediate lane:- 5.5m 4 Two lane :- 7.5 m 5:- Thee lane:- 10.50m 6:- Four lane:- 7.5m+ 7.5m
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Different types of carriage way include single lane, multilane, intermediate lane, two lane, three lane, and four lane.
• Single lane has a width of 3.75m

• Multilane has a width of 3.50m

• Intermediate lane has a width of 5.5m

• Two lane has a width of 7.5m

• Three lane has a width of 10.50m

• Four lane has a width of 7.5m + 7.5m
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Q13. TYPES CAMBER 1 :- STRIGTH CAMBER 2:- PAROBOLIC CABER 3 STRAIGHT AND PARABOLIC CAMBER cc amber 1 in 50 to 1in60 Bitumen CAMBER 1in40 to 1in 50 camber Wmm camber 1in30 to 1in40
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Q14. CBR;- Developed by the California division State of high way to classify and evaluting 1: soil subgrade 2:-GSB CBR-=3% TO 15% Clay=<8% Sand 15% to 35% Gravel >25% THICKNESSES OF PAVEMENT T= (1.75P/...read more
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Q1. Why we are use lap in centre of column or Zone B?
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Lap is used in the center of a column or Zone B for structural stability and reinforcement.
• Lap joints provide additional strength and stability to the column.

• They help in distributing the load evenly across the column.

• Lap joints prevent the column from cracking or failing under heavy loads.

• Zone B is a critical area where the maximum bending moment occurs, and lap joints help in reinforcing this zone.

• By using lap in the...read more
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Q2. Where are construction joint is provide in simply supported slab?
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Construction joints are provided at mid-span of simply supported slabs.
• Construction joints are provided to allow for differential movement between adjacent sections of the slab.

• They are typically located at mid-span of the slab, where the bending moment is zero.

• The joint should be designed to transfer shear and moment between the two sections of the slab.

• Proper reinforcement detailing is necessary to ensure the joint f...read more
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Q3. L/6 or L/ 3 where L is sapan of slab
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L/6 or L/3 is the ratio used to determine the maximum allowable deflection of a slab.
• L/6 is used for residential buildings while L/3 is used for commercial buildings.

• The ratio determines the maximum amount of deflection that a slab can have without causing damage or discomfort to occupants.

• For example, if the span of a slab is 12 feet, the maximum allowable deflection for a residential building would be 2 inches (12/6)...read more
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Q1. DDUGJY Project;- 33/11 KV New PSS ,33 KV Line ,11 KV Line and LT Line
Ans. Rerea of New PSS 60*40 mtr control room 1700 sqft road 60 mtr width 3.75 mtr footpath 15 mtr , fencing 40 mtr cable trench 130 mtr , 2 no 5 MVA PTR, 800Amp VCB and 800 Amp rating isolator in switch yards area. cost of civil work by sub cotractor 1.15 cr and electrical work 9.85 lac.
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Q2. RGGVY 12th Plan , HVDS Project, and Segrigation
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Q3. ADB Project 33/11 KV New PSS R&M 33&11 KV line LT Line
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Q1. Final negotiation of salary
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Project Management , Production Management and HSE

Q1. Very understanding and initiate. Motivated HR Department
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