30 real Transportation Engineering questions from the Civil Core bank, as asked in Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd — free to start.
1. What is Stopping sight distance?
Junior
A.length needed to perceive, react for 2.5 seconds and brake to a halt, equal to 0.278 V t + V²/(254 f) with V in km/h
B.equivalence factor for mixed traffic in which a bus or truck counts as roughly 2 to 3 cars and a two-wheeler as 0.5
C.bituminous mix design test at 60 °C giving stability, flow of 2 to 4 mm and air voids of 3 to 5 percent to fix optimum binder content
D.penetration test comparing the load to push a plunger 2.5 mm into soil against that for standard crushed stone, expressed as a percentage of subgrade strength
A.Stopping sight distance — maximum gradient normally adopted for design, 1 in 30 in plains, 1 in 20 in mountainous terrain and 1 in 16.7 in steep terrain
B.Stopping sight distance — penetration test comparing the load to push a plunger 2.5 mm into soil against that for standard crushed stone, expressed as a percentage of subgrade strength
C.Stopping sight distance — raising of the outer edge on a curve so that e + f = V²/(127 R), with friction f taken as 0.15 for design
D.Stopping sight distance — length needed to perceive, react for 2.5 seconds and brake to a halt, equal to 0.278 V t + V²/(254 f) with V in km/h
5. Which term means: "cross slope given for surface drainage, about 2 to 2.5 percent for bituminous surfaces and 1.7 to 2 percent for cement concrete"?
8. Which term means: "National Highways, State Highways, Major District Roads, Other District Roads and Village Roads, with expressways added as the top tier"?
A.Road classification — raising of the outer edge on a curve so that e + f = V²/(127 R), with friction f taken as 0.15 for design
B.Road classification — cross slope given for surface drainage, about 2 to 2.5 percent for bituminous surfaces and 1.7 to 2 percent for cement concrete
C.Road classification — National Highways, State Highways, Major District Roads, Other District Roads and Village Roads, with expressways added as the top tier
D.Road classification — additional carriageway width on horizontal curves, combining mechanical widening n l²/(2R) and psychological widening V/(9.5 √R)
A.Viscosity-graded bitumen — IS 73 grades VG-10 to VG-40 based on viscosity at 60 °C, replacing the old penetration grades such as 60/70 and 80/100
B.Viscosity-graded bitumen — bituminous mix design test at 60 °C giving stability, flow of 2 to 4 mm and air voids of 3 to 5 percent to fix optimum binder content
C.Viscosity-graded bitumen — additional carriageway width on horizontal curves, combining mechanical widening n l²/(2R) and psychological widening V/(9.5 √R)
D.Viscosity-graded bitumen — length needed to perceive, react for 2.5 seconds and brake to a halt, equal to 0.278 V t + V²/(254 f) with V in km/h
A.Superelevation — penetration test comparing the load to push a plunger 2.5 mm into soil against that for standard crushed stone, expressed as a percentage of subgrade strength
B.Superelevation — National Highways, State Highways, Major District Roads, Other District Roads and Village Roads, with expressways added as the top tier
C.Superelevation — length needed to perceive, react for 2.5 seconds and brake to a halt, equal to 0.278 V t + V²/(254 f) with V in km/h
D.Superelevation — raising of the outer edge on a curve so that e + f = V²/(127 R), with friction f taken as 0.15 for design
A.penetration test comparing the load to push a plunger 2.5 mm into soil against that for standard crushed stone, expressed as a percentage of subgrade strength
B.additional carriageway width on horizontal curves, combining mechanical widening n l²/(2R) and psychological widening V/(9.5 √R)
C.length needed to perceive, react for 2.5 seconds and brake to a halt, equal to 0.278 V t + V²/(254 f) with V in km/h
D.IS 73 grades VG-10 to VG-40 based on viscosity at 60 °C, replacing the old penetration grades such as 60/70 and 80/100
17. Which term means: "penetration test comparing the load to push a plunger 2.5 mm into soil against that for standard crushed stone, expressed as a percentage of subgrade strength"?
A.CBR test — additional carriageway width on horizontal curves, combining mechanical widening n l²/(2R) and psychological widening V/(9.5 √R)
B.CBR test — penetration test comparing the load to push a plunger 2.5 mm into soil against that for standard crushed stone, expressed as a percentage of subgrade strength
C.CBR test — IS 73 grades VG-10 to VG-40 based on viscosity at 60 °C, replacing the old penetration grades such as 60/70 and 80/100
D.CBR test — National Highways, State Highways, Major District Roads, Other District Roads and Village Roads, with expressways added as the top tier
20. Which term means: "bituminous mix design test at 60 °C giving stability, flow of 2 to 4 mm and air voids of 3 to 5 percent to fix optimum binder content"?
A.Marshall stability test — cross slope given for surface drainage, about 2 to 2.5 percent for bituminous surfaces and 1.7 to 2 percent for cement concrete
B.Marshall stability test — bituminous mix design test at 60 °C giving stability, flow of 2 to 4 mm and air voids of 3 to 5 percent to fix optimum binder content
C.Marshall stability test — length needed to perceive, react for 2.5 seconds and brake to a halt, equal to 0.278 V t + V²/(254 f) with V in km/h
D.Marshall stability test — IS 73 grades VG-10 to VG-40 based on viscosity at 60 °C, replacing the old penetration grades such as 60/70 and 80/100
A.cross slope given for surface drainage, about 2 to 2.5 percent for bituminous surfaces and 1.7 to 2 percent for cement concrete
B.additional carriageway width on horizontal curves, combining mechanical widening n l²/(2R) and psychological widening V/(9.5 √R)
C.penetration test comparing the load to push a plunger 2.5 mm into soil against that for standard crushed stone, expressed as a percentage of subgrade strength
D.equivalence factor for mixed traffic in which a bus or truck counts as roughly 2 to 3 cars and a two-wheeler as 0.5
A.Passenger car unit — equivalence factor for mixed traffic in which a bus or truck counts as roughly 2 to 3 cars and a two-wheeler as 0.5
B.Passenger car unit — cross slope given for surface drainage, about 2 to 2.5 percent for bituminous surfaces and 1.7 to 2 percent for cement concrete
C.Passenger car unit — raising of the outer edge on a curve so that e + f = V²/(127 R), with friction f taken as 0.15 for design
D.Passenger car unit — penetration test comparing the load to push a plunger 2.5 mm into soil against that for standard crushed stone, expressed as a percentage of subgrade strength
26. Which term means: "maximum gradient normally adopted for design, 1 in 30 in plains, 1 in 20 in mountainous terrain and 1 in 16.7 in steep terrain"?
29. Which term means: "additional carriageway width on horizontal curves, combining mechanical widening n l²/(2R) and psychological widening V/(9.5 √R)"?
A.Extra widening on curves — additional carriageway width on horizontal curves, combining mechanical widening n l²/(2R) and psychological widening V/(9.5 √R)
B.Extra widening on curves — cross slope given for surface drainage, about 2 to 2.5 percent for bituminous surfaces and 1.7 to 2 percent for cement concrete
C.Extra widening on curves — maximum gradient normally adopted for design, 1 in 30 in plains, 1 in 20 in mountainous terrain and 1 in 16.7 in steep terrain
D.Extra widening on curves — equivalence factor for mixed traffic in which a bus or truck counts as roughly 2 to 3 cars and a two-wheeler as 0.5
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