NEEPCO Engineer Previous Papers – NEEPCO Placement Papers, Study Material

6. A soil sample has a void ratio of 0.5, and its porosity will be close to
(a) 50%
(b) 66%
(c) 100%
(d) 33%

7. A borrow pit soil has a dry density of 17 kN/m 3. How many cubic meters of this soil will be required to construct an embankment of 100 m 3 volume with a dry density of 16 kN/m 3.
(a) 94 m 3
(b) 106 m 3
(c) 100 m 3
(d) 90 m 3

8. The group efficiency of a pile group
(a) will be always less than 100%.
(b) will be always greater than 100%
(c) may be less than 100% or more than 100%.
(d) will be more than 100% for pile groups in cohesionless soils and less than 100% for those in cohesive soils.

9. The two criteria for the determination of the allowable bearing capacity of a foundation are
(a) tensile failure and compression failure.
(b) tensile failure and settlement.
(c) bond failure and shear failure.
(d) shear failure and settlement.

10. If duty (D) is 1428 hectares/cumec and base period (B) is 120 days for an irrigated crop, then delta ( D ) in meters is given by
(a) 102.8    (b) 0.73

(c) 1.38       (d) 0.01

11. Cavitation is caused by
(a) high velocity
(b) low pressure
(c) high pressure
(d) high temperature

12. If the pump head is 15m, discharge is 0.464 m 3/s, and the motor speed is 1440 rpm at rated condition, the specific speed of the pump is about
(a) 4
(b) 26
(c) 38
(d) 1440

13. The BOD removal efficiency, in percentage, during primary treatment, under normal conditions is about
(a) 65%
(b) 85%
(c) 30%
(d) Zero

14. Critical factors for the activated sludge treatment process are
(a) maximum hourly flow rate.
(b) maximum and minimum flow rate.
(c) the maximum hourly flow rate and maximum daily organic load.
(d) the minimum hourly flow rate and minimum daily organic load.

15. Use of coagulants such as alum
(a) results in the reduction of pH of the treated water.
(b) results in the increase of pH of the treated water.
(c) results in no change in pH of the treated water.
(d) may cause an increase or decrease of pH of the treated water.

16. The disinfection efficiency of chlorine in water treatment
(a) is not dependent on pH value.
(b) is increase by increased pH value.
(c) remains constant at all pH values.
(d) is reduced by increased pH value.

17. The standard plate size in a plate bearing test for finding modulus of subgrade reaction (k) value is
(a) 100 cm diameter
(b) 50 cm diameter
(c) 75 cm diameter
(d) 25 cm diameter

18. Width of carriageway for a single lane is recommended to be
(a) 7.5 m
(b) 7.0 m
(c) 3.75 m
(d) 5.5 m

19. Stopping sight distance is the minimum distance available on a highway that is the
(a) distance of sufficient length to stop the vehicle without collision.
(b) distance visible to a driver during night driving.
(c) the height of the object above the road surface.
(d) a distance equal to the height of the driver’s eye above the road surface.

20. Bituminous materials are commonly used in highway construction because of their good
(a) tensile and compression properties.
(b) binding and waterproofing properties.
(c) shear strength and tensile properties.
(d) bond and tensile properties.

21. A deep cut of 1m has to be made in clay with unit weight 16 kN/m 3 and a cohesion of 25 kN/m 2. What will be the factor of safety if one has to have a slope angle of 30°? Stability number is given to be 0.178 (from Taylor’s chart) for a depth factor of 3.
(a) 0.80
(c) 1.25
(b) 1.1
(d) 1.0

22. In a drained triaxial compression test, a saturated specimen of a cohesionless sand fails under a deviatoric stress of 3 kgf/cm 2 when the cell pressure is 1 kgf/cm 2. The effective angle of shearing resistance of sand is about
(a) 37°
(b) 45°
(c) 53°
(d) 20°

36Two footings, one circular and the other square, are founded on the surface of a purely cohesionless soil. The diameter of the circular footing is same as that of the side of the square footing. The ratio of their ultimate bearing capacities is

(a) 3/4
(b) 4/3

(c) 1.0
(d) 1.3

37. To have zero active pressure intensity at the tip of a wall in cohesive soil, one should apply a uniform surcharge intensity of

(a) 2 c tan a
(b) 2 c cot a
(c) – 2 c tan a
(d) – 2 c tan a

38. Water flows at a depth of 0.1m with a velocity of 6 m/s in a rectangular channel. The alternate depth is

0.30 m
0.40 m
0.86 m
0.81 m

39. In an area of 200 hectares, the water table drops by 4 m. If the porosity is 0.35 and the specific retention is 0.15, change in volume of storage in the aquifer is.

(a) 160 m 3
(b) 1.6 x 106 m
(c) 8 x 106 m 3
(d) 1.6 x 103 m 3

40. A tube well having a capacity of 4 m 3/hour operates for 20 hours each day during the irrigation season. How much area can be commanded if the irrigation interval is 20 days and depth of irrigation is 7 cm?

(a) 1.71 x 10 4 m 2
(b) 1.14 x 10 4 m 2
(c) 22.9 x 10 4 m 2
(d) 2.29 x 10 4 m 2

41. The parameters in Horton’s infiltration equation [f(t) = f c + (f o – f c ) e -kt] are given as, f o = 7.62 cm/hour, f c = 1.34 cm/hour and k = 4.182/hour.
For assumed continuous ponding the cumulative infiltration at the end of 2 hours is

(a) 2.68 cm
(b) 1.50 cm
(c) 1.34 cm
(d) 4.18 cm

42. Water flows at a rate of 10 m 3/s in a rectangular channel 3 m wide. The critical depth of flow is
1.13 m
2m
1.45 m
1.04 m

43. A circular sewer 2m diameter has to carry a discharge of 2 m 3/s when flowing nearly full. What is the minimum required slope to initiate the flow? Assume Manning’s n = 0.015.
(a) 0.00023
(b) 0.000036
(c) 0.000091
(d) 0.000014

44. The following characteristics pertain to the sand filters used in the water industry.

Filtration rate is 1 to 4 m 3/(m 2 day).
The typical duration of operation in one run is 24 to 72 hours.
Operating cost is low.

Which of the above characteristics pertain to slow sand filters?(a) I, II and III

(a) I, II and III

(b) I and II

(c) II and III

(d) I and III

45 The ruling minimum radius of horizontal curve of a national highway in plain terrain for a ruling design speed of 100 km/hour with e = 0.07 and f = 0.15 is close to
(a) 250 m
(b) 360 m
(c) 36 m
(d) 300 m

46. Design rate of super elevation for horizontal highway curve of radius 450 m for a mixed traffic condition, having a speed of 125 km/hour is

(a) 1.0
(b) 0.05
(c) 0.07
(d) 0.1.54

1. If REASON is coded as 5 and BELIEVED is coded as 7, what will be coded for GOVERMENT?

A.6
B.8
C.9
D.10
Ans: C
Ex: Code for the given word = (number of letter in the word) – 1.
So, the code for GOVERNMENT= 10 – 1 = 9

2. In a certain code language

MALLONPIML means BLUE LIGHT

MALLONTIFL means BLUEBERRY

ARPANTIFL means RASPBERRY

Which word could mean LIGHTHOUSE?

A.TIFLMALLON
B.PIMLARPAN
C.MALLONARPAN
D.PIMLDOKEN
Ans: D
Ex: MALLON means BLUE
PIML means LIGHT
TIFL means berry and ARPAN means RASP in RASPBERRY. The word PIML, which means LIGHT, is required for the word LIGHTHOUSE. Hence, choice D the only possible answer.

3. Sanjana’s brother-in-law is the son of Ramya. How is Sanjana’s husband related to Ramya’s husband if Sanjana had no siblings?
A.nephew
B.son
C.son-in-law
D.father-in law
Ans: B
Ex: Sanjana’s brother-in-law is the son of Ramya means Ramya is Sanjana’s mother-in-law.
Sanjana’s husband is Ramya’s son i.e. Sanjana’s husband is Ramya’s husband’s son.

4. If A is the brother of B; B is the sister of C; and C is the father of D, how D is related to A?

A.Brother
B.Sister
C.Nephew
D.Cannot be determined
Ans: D
EX: If D is Male, the answer is Nephew.
If D is Female, the answer is Niece.
As the sex of D is not known, hence, the relation between D and A cannot be determined.

5. Statement: There is an unprecedented increase in migration of villagers to urban areas as repeated crop failure has put them into precarious financial situation.

Courses of Action:

I. The villagers should be provided with alternate source of income in their villages which will make them stay put.

II. The migrated villagers should be provided with jobs in the urban areas to help them survive.

A.Only I follows
B.Only II follows
C.Either I or II follows
D.Neither I nor II follows
E.Both I and II follows
Ans: A
Ex: Clearly, increased migration would add to the burden on city’s infrastructure. So, attempts should be made to make the villagers feel comfortable in the villages itself. So, only course I follows.

6. Statement: There has been a significant drop in the water level of all the lakes supplying water to the city.

Courses of Action:

I. The water supply authority should impose a partial cut in supply to tackle the situation.
II. The government should appeal to all the residents through mass media for minimal use of water.

A. Only I follows
B. Only II follows
C. Either I or II follows
D. Neither I nor II follows
E. Both I and II follow
Ans: E
Ex: The situation can be tackled by periodic cuts in supply, and urging people to conserve water. So both the courses follow.

7. Find the next number of the series.

563, 647, 479, 815,…?

A.672
B.386
C.279
D.143
Ans: D
Ex:In the sequence is +84 -168 +336…. i.e. +84, -(84 * 2), +(84 * 4)…
Therefore, 815 – (84 * 8) = 143
8. After walking 6 km, I turned to the right and then walked 2 km. After then I turned to the left and walked 10 km. In the end, I was moving towards the North. From which direction did I start my journey?

A.North
B.South
C.East
D.West
Ans: B
Ex: The journey was started from the South.

9. Choose the correct antonym from the given four alternatives.
PROFANE

A.Pious
B.Kitten
C.Energy
D.Wild
Ans: A

10. AUDACITY

A.Quivering
B.Patricide
C.Bravado
D.Cowardice
Ans: D

11. In the following the questions choose the word which best expresses the meaning of the given word.

VACILLATE

A.Amplify
B.Stimulate
C.Cheat
D.Waver
Ans: D

12. DIALECTIC

A.Argumentation
B.Instructive
C.Constructive
D.Destructive
Ans: A

13. Which of phrases given below each sentence should replace the phrase printed in bold type to make the grammatically correct.

Every time I go in a lift to my sixth-floor apartment, I remember the calm and serenity of my ancestral home in the village.

A.Move in a lift
B.Ascend in a lift
C.Take a lift
D.No improvement
Ans: C

14. The moment the manager came to know the fraudulent action of his assistant, he order immediately dismissed him.

A.Immediately ordered his dismissed
B.Ordered his immediate dismissal
C.Immediately order dismissal of his
D.Ordered for immediately dismissal of him
E.No correction required
Ans: B

15. Some proverbs/idioms are given below together with their meanings. Choose the correct meaning of proverb/idiom.

To hit the nail right on the head

A.To do the right thing
B.To destroy one’s reputation
C.To announce one’s fixed views
D.To teach someone a lesson
E.None of these
Ans: A
16. At one point, it looked as if an area of agreement would …… specially over the issue of productivity-linked wages.

A.Develop
B.Come out
C.Emerge
D.Grow
Ans: C

1. January 1, 2005 was Saturday. What day of the week lies on Jan. 1, 2006?

A.Wednesday
B.Tuesday
C.Saturday
D.Sunday
Answer: Option D
Explanation: The year 2005 is an ordinary year. So, it has 1 odd day.
1st day of the year 2005 was Saturday.
1st day of the year 2006 will be 1 day beyond Saturday.
Hence, it will be Sunday.

2. It was Monday on Jan 1, 2007. What was the day of the week Jan 1, 2011?

A.Monday
B.Friday
C.Saturday
D.Wednesday
Answer: Option C
Explanation: On 31st December 2006 it was Sunday.
Number of odd days from the year 2007 to the year 2010 = (1 + 2 + 1 + 1) = 5 days.
On 31st December 2010, it was Friday.
Thus, on 1st Jan 2011 it is Saturday.

3. If in a village the population decreases by 20%, increases by 10% and increases by 10%, the new population is what percentage of the original population?

A. 96.8
B. 98.8
C. 100
D. none

Ans: A

4. A square garden has fourteen posts along each side at equal interval. Find how many posts are there in all four sides:

A.56
B.52
C.44
D. 60

Ans: B

Ex:(B) Reqd no. of posts = 4 (at the corners) + 4 × 12 (in between on the sides)
= 4 + 48 = 52

5. The Average age of students of an adult school is 40 years. 120 new students whose average age is 32 years joined the school. As a result, the average age is decreased by 4 years. Find the number of students of the school after joining of the new students:

A.1200
B.120
C. 360
D. 240
Ans: D
Ex: Let the original no. of students be x A.T.S. 40x + 120 × 32 = (x + 120)36 ⇒ x = 120

∴ Reqd no. of students after joining the new students

= x + 120 = 240

6. The sum of two numbers is 45 and their product is 500. The G.C.M. of the numbers is:

A.5
B. 9
C. 10
D.15

Ans: A
Ex: Let the nos. be x, 45 – x A.T.S x(45 – x) = 500
x2 – 45x + 500 = 0 ⇒ x2 – 20x – 25x + 500 = 0
x(x– 20) – 25 (x – 20) = 0 ⇒ (x – 20) (x – 25) = 0
x = 25, 20. If one no. = 25 other no. = 45 – 25 = 20
G.C.M. of 25, 20 = 5

7. An alloy of zinc and copper contains the metals in the ratio 5 : 3. The quantity of zinc to be added to 16 kg of the alloy so that the ratio of the metal may be 3 : 1 is:

A.2 kg
B. 4 kg
C.3 kg
D.8 kg
Ans: D

8. A man on riding crosses a bridge in 5 minutes when riding is being done at 15 kmph. The length of the bridge is:

A. 125 m
B. 250 m
C. 1250 m
D. 2500 m
Ans: C

9. Ravi runs at 15.6 kmph. How many metres does he run in 2 minutes?

A. 260 m
B. 312 m
C. 520 m
D. 1040 m
Ans: C

10. A person borrowed Rs. 500 at the rate of 5% per annum S.I. What amount will he pay to clear the debt after 4 years ?

A. Rs. 200
B. Rs. 550
C. Rs. 600
D. Rs. 700
Ans: C

11. Vikas can cover a distance in 1hr 24min by covering 2/3 of the distance at 4 kmph and the rest at 5kmph.the total distance is?

A.5 km
B.6 km
C.4 km
D.8 km
Ans: B
EX: Let total distance be S total time=1hr24minA to T :: speed=4kmphdiistance=2/3ST to S :: speed=5kmdistance=1-2/3S=1/3S21/15 hr=2/3 S/4 + 1/3s /584=14/3S*3S=84*3/14*3= 6km

12. The average ages of three persons are 27 years. Their ages are in the proportion of 1:3:5.What is the age in years of the youngest one among them

A.10
B.12
C.11
D.9

Ans: D
Ex: Let the age of three persons be x, 3x and 5x — > 9x/3 = 27 — > x = 9

13. It being given that √ 15 = 3.88, the best approximation to √5/3 is
A.0.43
B.1.89
C.1.29
D.1.63
Ans: C

EX: x = √5/3 = √5*3/3*3 = √15 /√ 9 = √15/3 = 3.88/3 = 1.29

14. Of the two-digit numbers (those from 11 to 95, both inclusive) how many have a Second digit greater than the first digit?

A.37
B.38
C.36
D.35
Ans: C
Ex:12 to 19 — > 8
23 to 29 — > 7
34 to 39 — > 6
45 to 49 — > 5
56 to 59 — > 4
67 to 69 — > 3
78 to 79 — > 2
89 — > 1

15. The value of (0.625 * 0.0729 * 28.9)/(0.0017 * 0.025 * 8.1) is

A.3825
B.3.825
C.38.25
D.382.5

Ans: A
Ex: The sum of decimal places in numerator and denominator being the same, decimal point can be removed
(625*729*289) / (17*25*81) = 3825

16. The size of a wooden block is 5 * 10 * 20 cm3. How many whole such blocks you will take to construct a solid wooden cube of minimum size?

A.6
B.8
C.12
D.16

Ans: B
Ex: Size of each cube = 5 cm So number of blocks = (5 * 10 * 20)/(5*5*5) = 8

17. Find the odd man out – 1050, 510, 242, 106, 46, 16, 3

A.510

B.242

C.106

D.46
Ans: C

Ex:

2nd term = (Ist term – 30) / 2 = (1050-30)/2 = 510
3rd term = (2nd term – 26) / 2 = (510-26)/2 = 242
4th term = (3rd term – 22) / 2 = (242-22)/2 = 110
So 106 is the answer.

18. Six bells commence tolling together and toll at intervals 2,4,6,8,10 and 12 seconds respectively. In 30 minutes how many times they toll together.

A.4
B.10
C.15
D.16

Ans:D
Ex: L.C.M. of 2,4,6,8,10,12 = 120