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Oil and Natural Gas Corporation is the government undertaking that works under the Ministry of Petroleum and Gas.We have given the ONGC Graduate Trainee previous papers of civil below.Read the ONGC graduate trainee previous year question papers to analyze the exam pattern and important topics in the subject for the better preparation to get good score in the examination.
ONGC Model Question Paper
Civil Engineering
1. Which one of the following tests is performed in the laboratory to determine the extent of weathering of aggregates for road works?
(a) Soundness test
(b) Crushing test
(c) Impact test
(d) Abrasion test
Ans. (a)
2. Which one of the following geometric features requires the magnitudes of weaving angle and weaving distance for its design?
(a) Rotary design
(b) Right-angle intersection
(c) Roundabout
(d) Grade-separated junction
Ans. (a)
3. Which one of the following methods is used in the design of rigid pavements?
(a) CBR method
(b) Group index method
(c) Westergaardâs method
(d) McLeodâs method
Ans. (c)
4. In which one of the following yards, are reception, sorting and dispatch of railway wagons done?
(a) Loco yard
(b) Marashalling yard
(c) Goods yard
(d) Passenger yard
Ans. (b)
5. Which one of the following is not a desirable property of the subgrade soil as a highway meterial?
(a) Stability
(b) Ease of compaction
(c) Good drainage
(d) Bitumen adhesion
Ans. (d)
6. Consider the following statements:
In surverying operations, the word âreciprocalâ can be associated with
1. ranging
2. levelling
3. contouring
Which of the above statements is/are correct?
(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
Ans. (b)
7. How many- sidereal days are there in a solar year?
(a) 365.2840
(b) 366.2422
(c) 360.2500
(d) 365.0000
Ans. (b)
8. Consider the following statements
A sidereal year can be defined as the time interval:
1. between two successive transits .of the sun through the meridian of any of the fixed stars
2. between two successive passages of the sun through perigee
Which of the above statements is/are correct?
(a) 3 only
(b) 1and 2
(c) 2 and 3
(d) 1 only
Ans. (b)
9. Which one of the following methods of computing area assumes that the short, lengths of the boundary between the ordinatesm are parabolic ares?
(a) Average ordinate rule
(b) Middle ordinate rule
(c) Simpsonâs rule
(d) Trapezoidal rule
Ans. (c)
10. Which one the following errors is more severe in plane-table surveying?
(a) Defective sighting
(b) Defective orientation
(c) Movement of board between sights
(d) Non-horizontality of board when points sighted are at large differences of their elevation .
Ans. (b)
11. Which one of the following sets of factors is related to design of thickness rigid pavement by Westergaard method?
(a) CBR value and stiffness index of soil
(b) Deflection factor and traffic index
(c) Swelling index and bulk modulus
(d) Radius of relative stiffness and modulus of subgrade reaction
Ans. (d)
12. Consider the following in relation to group index of soil:
1. Liquid limit
2. Sandy loam
3. Plasticity index
4. Per cent passing 75 microns sieve
Which of the above is/are used for estimating the group index?
(a) 1 only
(b) 1and 2
(c) 2 and 3
(d) 1, 3 and 4
Ans. (d)
13. Which set of traffic functional design as well as for âhighway capacityâ design?
(a) Origin and destination studies
(b) Parking and accident studies
(c) Speed and volume studies
(d) Axle load studies
Ans. (a)
14. Which one of the following traffic survey schemes is most relevant when deciding on locating major âroutesâ in a city?
(a) Traffic volume survey
(b) Origin and destination survey
(c) Speed survey
(d) Traffic capacity survey
Ans. (b)
15. Which one of the following equipments is useful in determining spot speed in traffic engineering?
(a) Endoscope
(b) Periscope
(c) Radar
(d) Tachometer
Ans. (c)
16. Hot bitumen is sprayed over freshly constructed bituminous surface followed by spreading of 6.3 mm coarse aggregates and rolled. Which one of the following is indicated by this type of construction?
(a) Surface dressing
(b) Gravel-bitumen mix
(c) Liquid seal coat
(d) Seal coat
Ans. (a)
17. Radius of relative stiffness of cement concrete pavement does not depend upon which one of the following?
(a) Modulus of subgrade reaction
(b) Wheel load
(c) Modulus of elasticity of cement concrete
(d) Poissonâs ratio of concrete
Ans. (b)
18. For conditions obtaining in India, at which location in a cement concrete payement will the combined stresses due to traffic wheel studies is needed for well as for âhighway load and temperature have to be critically checked during design?
(a) Corner
(b) Corner and interior
(c) Corner and edge
(d) Corner, edge and interior
Ans. (d)
19. Consider the following factors:
1. The change in the shape and size of the channel cross-section
2. The change in the slope of the channel
3. The presence of obstruction
4. The change in the frictional forces at the boundaries
Which of the above factors would cause a gradually varied flow?
(a) 1, 2, 3 and 4
(b) 1, 2 and 3 only
(c) 2 and 4 only
(d) 3 and 4 only
Ans. (a)
20. Under which one of the following categories is the river Ganga classified in the reach through UP and Bihar?
(a) Straight river
(b) Meandering river
(c) Braided river
(d) Deltaic river
Ans. (b)
21. Which of the following categories best describes the Hirakud reservoir?
(a) Reservoir for irrigation and power
(b) Reservoir for flood control, power and irrigation
(c) Reservoir for irrigation and water supply
(d) Reservoir for recreation and fishery
Ans. (b)
22.. During a particular stage of the growth of a crop, consumptive use of water is 2.8 mm/day. If the amount of water available in the soil is 25% of 80 mm depth of water what is the frequency of irrigation?
(a) 9 days
(b) 13 days
(c) 21 days
(d) 25 days
Ans. (c)
23.. Consider the following statements:
Irrigation water has to be supplied to the crops when the moisture level falls
1. below field capacity
2. to wilting point
3. below wilting point
Which of the above statement is/are correct?
(a) 1 only
(b) 2 only
(c) 3 only
(d) 2 and 3
Ans. (a)
24.. A groundwater basin consists of 10 km2 area of plains. The maximum groundwater table fluctuation has been observed to be 1.5 m. Consider specific yield of the basin as 10%. What is the available groundwater storage in million cubic metres?
(a) 1.0
(b) 1.5
(c) 2.5
(d) 2.0
Ans. (b)
25. Consider the following chemical emulsions:
1. Methyl alcohol
2. Cetyl alcohol
3. Stearyl alcohol
4. Kerosene
Which of the above chemical emulsions is/are used to minimize the loss of water through the process of evaporation?
(a) 1 only
(b) 1 and 4
(c) 2 and 4
(d) 2 and 3
Ans. (d)
26. A catchment area of 60 ha has a runoff coefficient of 0.40. If a storm of intensity 3cm h and duration longer than the time of concentration occurs in the catchment, then what is the peak discharge?
(a) 2.0 m3/s
(b) 3.5 m3/s
(c) 4.5 m3/s
(d) 2.5 m3/s
Ans. (a)
27. Which combination of surface water quality parameters will indicate sweep coagulation as the preferred mechanism of coagulation?.
(a) High turbidity â low alkalinity
(b) High turbidity â high alkalinity
(c) Low turbidity â high alkalinity
(d) Low turbidity â low alkalinity
Ans. (b)
28. In a canal irrigation project, 76% of the culturable command area (CCA) remained without water during Kharif season; and 58% of CCA remained without water during Rabi season in a particular year. Rest of the areas got irrigated in each crop respectively. What is the intensity of irrigation for the project in that year?
(a) 134%
(b) 76%
(c) 66%
(d) 58%
Ans. (b)
29. What is the critical combination of vertical and horizontal earthquake accelerations to be considered for checking the stability of a gravity dam in reservoir full condition?
(a) Vertically upward and horizontally downstream
(b) Vertically upward and horizontally upstream
(c) Vertically downward and horizontally upstream
(d) Vertically downward and horizontally downstream
Ans. (d)
30. What is the height of wave which is likely to be generated by a wind of 80 km/hr in a reservoir having a fetch of 50 km:
(a) 0.5m
(b) 1.0 m
(c) 2.0 m
(d) 3.0 m
Ans. (c)
31. Consider the following statements:
1. Giving equal weightings to horizontal and vertical creeps for design of weir foundations is one of the drawbacks of Kennedyâs theory.
2. Khoslaâs theory of design of foundations for weirs is based on potential theory.
3. Piping problem can be reduced by increasing the length of floor.
4. In Laneâs weighted creep theory, horizontal creep is given less weightage compared to vertical creep.
Which of the above statements is/are correct?
(a) 1
(b) 2, 3 and 4
(c) 2 and 4 only
(d) 3 and 4 only
Ans. (b)
32. The power transmitted through a pipeline is maximum when the head lost due to friction in the pipe is equal to:
(a) the total supply head
(b) half of the total supply head
(c) one-third of the total supply head
(d) one-fourth of the total supply head
Ans. (c)
33. Consider the following with respect to the application of the Navier-Stokes equations:
1. Laminar flown in circular pipes
2. Laminar flow between concentric rotating cylinders
3. Laminar unidirectional flow between stationary parallel plates
4. Laminary unit directional flow between parallel plates having relative motion
Which of the above is/are correct?
(a) 1 only
(b) 2 and 3 only.
(c) 3 and 4 only
(d) 1, 2, 3 and 4
Ans. (c)
34. In a siphon system employed for carrying water from a reservoir A at a higher elevation to another reservoir B at lower elevation, both being separated by a higher hill, what will be the pressure at the âSummitâ (S)?
(a) Equal to the pressure at the water surface of reservoir A
(b) Higher than the pressure at the water surface of reservoir A
(c) Equal to the pressure at the water surface of reservoir B
(d) Less than the pressure at both A and B above
Ans. (d)
35. Consider the following statements related to undersluices provided in diversion weirs on permeable foundations:
I. They are fully gate-controlled and have crest at the same level as the weir crest when no silt excluders are provided.
2. They scour the silt deposited on the river bed in the pockets upstream of the canal head regulator.
3. It is not necessary to provide end pile line on the downstream end of the undersluice floor.
4. The discharge capacity of the undersluice is 10-15% of the maximum flood or two times the maximum discharge of the offtaking canal or maximum winter discharge, whichever is the highest.
Which of the above statements is/are correct?
(a) 1
(b) 2 and 4 only
(c) 2, 3 and 4
(d) 3 and 4 only
Ans. (b)
