Site Execution Practice interview questions

1. A.planned stop in concreting placed at one-third span of beams and slabs where shear is low, roughened and cleaned before the next pour
2. B.transfer of grid lines from drawings to the ground by total station with reference pillars or batter boards, checked by measuring diagonals for squareness
3. C.steel tubular system of standards, ledgers and transoms locked by cup joints on base plates and sole boards, braced per IS 4014 for access and support
4. D.thick rafts use low-heat or GGBS blends, ice and cooling pipes with thermocouples to hold the core-surface differential under 20 °C and avoid thermal cracking

Answer + AI explanation with Pro

1. A.Mass concrete temperature control
2. B.Setting out
3. C.Hot weather concreting
4. D.Cold joint

Answer + AI explanation with Pro

1. A.Setting out — IS 7861 keeps concrete below about 30 °C at placing by chilled water, ice flakes, retarders and night pours to prevent slump loss and plastic shrinkage cracks
2. B.Setting out — concrete dropped no more than about 1.5 m, laid in 300 to 450 mm layers and compacted with a needle vibrator immersed 5 to 15 seconds at 450 mm spacing
3. C.Setting out — transfer of grid lines from drawings to the ground by total station with reference pillars or batter boards, checked by measuring diagonals for squareness
4. D.Setting out — thick rafts use low-heat or GGBS blends, ice and cooling pipes with thermocouples to hold the core-surface differential under 20 °C and avoid thermal cracking

Answer + AI explanation with Pro

1. A.unplanned plane of weakness formed when fresh concrete is placed on a layer that has already passed initial set, avoided by continuous pours, retarders and re-vibration
2. B.IS 7861 keeps concrete below about 30 °C at placing by chilled water, ice flakes, retarders and night pours to prevent slump loss and plastic shrinkage cracks
3. C.ponding for slabs, wet hessian for columns and beams, membrane compound where water is scarce, all begun after final set and kept up for 7 to 10 days
4. D.thick rafts use low-heat or GGBS blends, ice and cooling pipes with thermocouples to hold the core-surface differential under 20 °C and avoid thermal cracking

Answer + AI explanation with Pro

1. A.Cold joint
2. B.Construction joint
3. C.Hot weather concreting
4. D.Slab cycle

Answer + AI explanation with Pro

1. A.Cold joint — IS 7861 keeps concrete below about 30 °C at placing by chilled water, ice flakes, retarders and night pours to prevent slump loss and plastic shrinkage cracks
2. B.Cold joint — ponding for slabs, wet hessian for columns and beams, membrane compound where water is scarce, all begun after final set and kept up for 7 to 10 days
3. C.Cold joint — repeating sequence of shuttering, reinforcement, services, concreting and stripping per floor, 7 days with aluminium formwork and 10 to 14 with conventional
4. D.Cold joint — unplanned plane of weakness formed when fresh concrete is placed on a layer that has already passed initial set, avoided by continuous pours, retarders and re-vibration

Answer + AI explanation with Pro

1. A.planned stop in concreting placed at one-third span of beams and slabs where shear is low, roughened and cleaned before the next pour
2. B.thick rafts use low-heat or GGBS blends, ice and cooling pipes with thermocouples to hold the core-surface differential under 20 °C and avoid thermal cracking
3. C.repeating sequence of shuttering, reinforcement, services, concreting and stripping per floor, 7 days with aluminium formwork and 10 to 14 with conventional
4. D.concrete dropped no more than about 1.5 m, laid in 300 to 450 mm layers and compacted with a needle vibrator immersed 5 to 15 seconds at 450 mm spacing

Answer + AI explanation with Pro

1. A.Slab cycle
2. B.Cuplock scaffolding
3. C.Construction joint
4. D.Setting out

Answer + AI explanation with Pro

1. A.Construction joint — thick rafts use low-heat or GGBS blends, ice and cooling pipes with thermocouples to hold the core-surface differential under 20 °C and avoid thermal cracking
2. B.Construction joint — planned stop in concreting placed at one-third span of beams and slabs where shear is low, roughened and cleaned before the next pour
3. C.Construction joint — steel tubular system of standards, ledgers and transoms locked by cup joints on base plates and sole boards, braced per IS 4014 for access and support
4. D.Construction joint — repeating sequence of shuttering, reinforcement, services, concreting and stripping per floor, 7 days with aluminium formwork and 10 to 14 with conventional

Answer + AI explanation with Pro

1. A.IS 456 allows vertical faces off at 16 to 24 hours, slab props for spans up to 4.5 m at 7 days and beam props up to 6 m at 14 days
2. B.concrete dropped no more than about 1.5 m, laid in 300 to 450 mm layers and compacted with a needle vibrator immersed 5 to 15 seconds at 450 mm spacing
3. C.ponding for slabs, wet hessian for columns and beams, membrane compound where water is scarce, all begun after final set and kept up for 7 to 10 days
4. D.transfer of grid lines from drawings to the ground by total station with reference pillars or batter boards, checked by measuring diagonals for squareness

Answer + AI explanation with Pro

1. A.Placing and compaction
2. B.Curing methods
3. C.Cuplock scaffolding
4. D.Construction joint

Answer + AI explanation with Pro

1. A.Placing and compaction — thick rafts use low-heat or GGBS blends, ice and cooling pipes with thermocouples to hold the core-surface differential under 20 °C and avoid thermal cracking
2. B.Placing and compaction — ponding for slabs, wet hessian for columns and beams, membrane compound where water is scarce, all begun after final set and kept up for 7 to 10 days
3. C.Placing and compaction — concrete dropped no more than about 1.5 m, laid in 300 to 450 mm layers and compacted with a needle vibrator immersed 5 to 15 seconds at 450 mm spacing
4. D.Placing and compaction — repeating sequence of shuttering, reinforcement, services, concreting and stripping per floor, 7 days with aluminium formwork and 10 to 14 with conventional

Answer + AI explanation with Pro

1. A.unplanned plane of weakness formed when fresh concrete is placed on a layer that has already passed initial set, avoided by continuous pours, retarders and re-vibration
2. B.ponding for slabs, wet hessian for columns and beams, membrane compound where water is scarce, all begun after final set and kept up for 7 to 10 days
3. C.IS 456 allows vertical faces off at 16 to 24 hours, slab props for spans up to 4.5 m at 7 days and beam props up to 6 m at 14 days
4. D.IS 7861 keeps concrete below about 30 °C at placing by chilled water, ice flakes, retarders and night pours to prevent slump loss and plastic shrinkage cracks

Answer + AI explanation with Pro

1. A.Curing methods
2. B.Cold joint
3. C.Placing and compaction
4. D.Hot weather concreting

Answer + AI explanation with Pro

1. A.Curing methods — planned stop in concreting placed at one-third span of beams and slabs where shear is low, roughened and cleaned before the next pour
2. B.Curing methods — unplanned plane of weakness formed when fresh concrete is placed on a layer that has already passed initial set, avoided by continuous pours, retarders and re-vibration
3. C.Curing methods — repeating sequence of shuttering, reinforcement, services, concreting and stripping per floor, 7 days with aluminium formwork and 10 to 14 with conventional
4. D.Curing methods — ponding for slabs, wet hessian for columns and beams, membrane compound where water is scarce, all begun after final set and kept up for 7 to 10 days

Answer + AI explanation with Pro

1. A.IS 7861 keeps concrete below about 30 °C at placing by chilled water, ice flakes, retarders and night pours to prevent slump loss and plastic shrinkage cracks
2. B.ponding for slabs, wet hessian for columns and beams, membrane compound where water is scarce, all begun after final set and kept up for 7 to 10 days
3. C.planned stop in concreting placed at one-third span of beams and slabs where shear is low, roughened and cleaned before the next pour
4. D.repeating sequence of shuttering, reinforcement, services, concreting and stripping per floor, 7 days with aluminium formwork and 10 to 14 with conventional

Answer + AI explanation with Pro

1. A.Slab cycle
2. B.Construction joint
3. C.Placing and compaction
4. D.Mass concrete temperature control

Answer + AI explanation with Pro

1. A.Slab cycle — unplanned plane of weakness formed when fresh concrete is placed on a layer that has already passed initial set, avoided by continuous pours, retarders and re-vibration
2. B.Slab cycle — repeating sequence of shuttering, reinforcement, services, concreting and stripping per floor, 7 days with aluminium formwork and 10 to 14 with conventional
3. C.Slab cycle — ponding for slabs, wet hessian for columns and beams, membrane compound where water is scarce, all begun after final set and kept up for 7 to 10 days
4. D.Slab cycle — concrete dropped no more than about 1.5 m, laid in 300 to 450 mm layers and compacted with a needle vibrator immersed 5 to 15 seconds at 450 mm spacing

Answer + AI explanation with Pro

1. A.IS 456 allows vertical faces off at 16 to 24 hours, slab props for spans up to 4.5 m at 7 days and beam props up to 6 m at 14 days
2. B.ponding for slabs, wet hessian for columns and beams, membrane compound where water is scarce, all begun after final set and kept up for 7 to 10 days
3. C.IS 7861 keeps concrete below about 30 °C at placing by chilled water, ice flakes, retarders and night pours to prevent slump loss and plastic shrinkage cracks
4. D.unplanned plane of weakness formed when fresh concrete is placed on a layer that has already passed initial set, avoided by continuous pours, retarders and re-vibration

Answer + AI explanation with Pro

1. A.Curing methods
2. B.Cold joint
3. C.Formwork stripping periods
4. D.Construction joint

Answer + AI explanation with Pro

1. A.Formwork stripping periods — unplanned plane of weakness formed when fresh concrete is placed on a layer that has already passed initial set, avoided by continuous pours, retarders and re-vibration
2. B.Formwork stripping periods — concrete dropped no more than about 1.5 m, laid in 300 to 450 mm layers and compacted with a needle vibrator immersed 5 to 15 seconds at 450 mm spacing
3. C.Formwork stripping periods — steel tubular system of standards, ledgers and transoms locked by cup joints on base plates and sole boards, braced per IS 4014 for access and support
4. D.Formwork stripping periods — IS 456 allows vertical faces off at 16 to 24 hours, slab props for spans up to 4.5 m at 7 days and beam props up to 6 m at 14 days

Answer + AI explanation with Pro

1. A.IS 7861 keeps concrete below about 30 °C at placing by chilled water, ice flakes, retarders and night pours to prevent slump loss and plastic shrinkage cracks
2. B.IS 456 allows vertical faces off at 16 to 24 hours, slab props for spans up to 4.5 m at 7 days and beam props up to 6 m at 14 days
3. C.planned stop in concreting placed at one-third span of beams and slabs where shear is low, roughened and cleaned before the next pour
4. D.steel tubular system of standards, ledgers and transoms locked by cup joints on base plates and sole boards, braced per IS 4014 for access and support

Answer + AI explanation with Pro

1. A.Placing and compaction
2. B.Setting out
3. C.Cuplock scaffolding
4. D.Cold joint

Answer + AI explanation with Pro

1. A.Cuplock scaffolding — transfer of grid lines from drawings to the ground by total station with reference pillars or batter boards, checked by measuring diagonals for squareness
2. B.Cuplock scaffolding — concrete dropped no more than about 1.5 m, laid in 300 to 450 mm layers and compacted with a needle vibrator immersed 5 to 15 seconds at 450 mm spacing
3. C.Cuplock scaffolding — thick rafts use low-heat or GGBS blends, ice and cooling pipes with thermocouples to hold the core-surface differential under 20 °C and avoid thermal cracking
4. D.Cuplock scaffolding — steel tubular system of standards, ledgers and transoms locked by cup joints on base plates and sole boards, braced per IS 4014 for access and support

Answer + AI explanation with Pro

1. A.transfer of grid lines from drawings to the ground by total station with reference pillars or batter boards, checked by measuring diagonals for squareness
2. B.steel tubular system of standards, ledgers and transoms locked by cup joints on base plates and sole boards, braced per IS 4014 for access and support
3. C.IS 7861 keeps concrete below about 30 °C at placing by chilled water, ice flakes, retarders and night pours to prevent slump loss and plastic shrinkage cracks
4. D.planned stop in concreting placed at one-third span of beams and slabs where shear is low, roughened and cleaned before the next pour

Answer + AI explanation with Pro

1. A.Placing and compaction
2. B.Mass concrete temperature control
3. C.Hot weather concreting
4. D.Construction joint

Answer + AI explanation with Pro

1. A.Hot weather concreting — thick rafts use low-heat or GGBS blends, ice and cooling pipes with thermocouples to hold the core-surface differential under 20 °C and avoid thermal cracking
2. B.Hot weather concreting — planned stop in concreting placed at one-third span of beams and slabs where shear is low, roughened and cleaned before the next pour
3. C.Hot weather concreting — IS 7861 keeps concrete below about 30 °C at placing by chilled water, ice flakes, retarders and night pours to prevent slump loss and plastic shrinkage cracks
4. D.Hot weather concreting — ponding for slabs, wet hessian for columns and beams, membrane compound where water is scarce, all begun after final set and kept up for 7 to 10 days

Answer + AI explanation with Pro

1. A.concrete dropped no more than about 1.5 m, laid in 300 to 450 mm layers and compacted with a needle vibrator immersed 5 to 15 seconds at 450 mm spacing
2. B.IS 7861 keeps concrete below about 30 °C at placing by chilled water, ice flakes, retarders and night pours to prevent slump loss and plastic shrinkage cracks
3. C.planned stop in concreting placed at one-third span of beams and slabs where shear is low, roughened and cleaned before the next pour
4. D.thick rafts use low-heat or GGBS blends, ice and cooling pipes with thermocouples to hold the core-surface differential under 20 °C and avoid thermal cracking

Answer + AI explanation with Pro

1. A.Mass concrete temperature control
2. B.Construction joint
3. C.Formwork stripping periods
4. D.Cuplock scaffolding

Answer + AI explanation with Pro

1. A.Mass concrete temperature control — thick rafts use low-heat or GGBS blends, ice and cooling pipes with thermocouples to hold the core-surface differential under 20 °C and avoid thermal cracking
2. B.Mass concrete temperature control — steel tubular system of standards, ledgers and transoms locked by cup joints on base plates and sole boards, braced per IS 4014 for access and support
3. C.Mass concrete temperature control — repeating sequence of shuttering, reinforcement, services, concreting and stripping per floor, 7 days with aluminium formwork and 10 to 14 with conventional
4. D.Mass concrete temperature control — unplanned plane of weakness formed when fresh concrete is placed on a layer that has already passed initial set, avoided by continuous pours, retarders and re-vibration

Answer + AI explanation with Pro