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The Crocodile's tail was three times as long as its head. Its body was half as long as its tail. The body and tail measured 13 feet 6 inches. How long was its head?

A. 13 feet 6 inches

B. 9 feet

C. 6 feet

D. 3 feet

E. 2 feet 6 inches


The portion of the earth that contains life is the -----------

A. Atmosphere

B. Hydrosphere

C. Lithosphere

D. Biosphere

E. None of the above


A numismatist decides to divide his coin collection between his children. The oldest gets 1/2 of the collection, the next gets 1/4, the next gets 1/5, and the youngest gets the remaining 49 coins. How many coins are in the collection?

A. 980

B. 1,080

C. 1,980

D. 2,000

E. None of the above
The correct answer is option [A] There are 980 coins in the collection: 490 + 245 + 196 + 49 = 980.
Quantitative Reasoning















Which of these is closest to earth?

A. Stratosphere

B. Ionosphere D layer

C. Sun

D. Ionosphere F2 layer

E. Troposphere

ENVIRONMENTAL AND SAFETY ENGINEERING



Find the difference between the values of six in 12687 and in 21867.

A. 9180

B. 660

C. 620

D. 540

E. 0

GENERAL PAPER


What comes next in this sequence: AAA, B, D, EEEE, FFF, G, HHH, I, J, KKK

A. M

B. MMM

C. L

D. LL

E. None of the above
The correct answer is option [D] LL: each term uses the number of straight lines in each letter. An L has two straight lines, therefore, two L's are shown.
Logical Reasoning


Half the graduating class of a college was accepted by a business school. one third of the class was accepted by a law school. If one-fifth of the class was accepted to both types of school. What fraction of the class was accepted only by a law school?

A. 1/60

B. 2/15

C. 1/3

D. 1/2

E. 4/5
The correct answer is [B]
Quantitative Reasoning


There are 200 questions on a 3 hr examination. Among these questions are 50 mathematics problems.It is suggested that twice as much time be spent on each maths problem as for each other question.How many minutes should be spent on mathematics problems?

A. 36

B. 60

C. 72

D. 86

E. 100
The correct answer is option [C]
Quantitative Reasoning


egg, _______ , pupa, butterfly

A. tadpole

B. larva

C. spawn

D. cocoon

E. None of the above
The correct answer is option [B] Here a life cycle is given according to stages from the initial stage to the adult stage. Larva is the stage between the egg and the pupa. Spawn is the term for fish eggs or frog's eggs. Cocoon is the covering in the pupa stage. Tadpole is an intermediate stage in the life cycle of a frog.
Verbal Reasoning





Complete the series, 2, 3, 5, 7, 11, 13, 17, 19, ____

A. 20

B. 21

C. 22

D. 23

E. 24

The correct answer is option [D] These are the prime numbers (i.e., numbers whose only factors are one and the number itself).
Quantitative Reasoning



Joe bought a bag of oranges on Monday, and ate a third of them. On Tuesday he ate half of the remaining oranges. On Wednesday he looked in the bag to find he only had two oranges left. How many oranges were originally in the bag?

A. 10

B. 8

C. 6

D. 4

E. 2
The correct answer is option [C] He had 6 oranges to start with, and ate 2 the first day and 2 the second day.
Logical Reasoning



Determine the number that should come next in the following series: 3 8 14 21 29 38 ?

A. 45

B. 46

C. 47

D. 48

E. 49
The correct answer is option [D] The differences between the numbers increases by 1, starting with 5 (3 to , so the answer is 48 because the difference has to be 10 between 38
Quantitative Reasoning



The Nigerian armed Forces Remembrance day is celebrated on ______.

A. 29th July

B. 27th August

C. 15th January

D. 1st October

E. 11th November

GENERAL PAPER



What kind of tax does the contractor in the Nigerian Risk Service Contract pay?

A. Property Tax

B. Company Income tax

C. Petroleum Profit Tax

D. Ground Tax

E. Production Tax



A chemical generally used for controlling water algae and another one for disinfecting swimming pools are ----------- and ------------- respectively.

A. Bleaching powder and Lime

B. Copper sulphate and chlorine

C. Copper sulphate and Alum

D. Alum and Copper sulphate

E. Chlorine and Copper sulphate


The ratio of horizontal to vertical permeability of an undisturbed soil sample is 1:1. This material is ______.

A. Anisotropic

B. Homogeneous

C. Isotropic

D. Homogeneous and isotropic

E. None of the above


An object whose mass is 200 kg moves with a velocity of 20 m/s at an altitude of 200 m, both measured relative to the surface of the earth. The acceleration of gravity is constant at g = 9.8 m/s2. If the kinetic energy increased by 240 kJ with no change in elevation, what would be the final velocity, in m/s?

A. 20.06

B. 22.45

C. 31.93

D. 34.52

E. 40.61



Two points respectively lie on the horizontal lines directly north and south of a tower 30 m high. The angles of elevation of the top of the tower from the points are 28oand 43o. The distance between the points is closest to ______.

A. 12 m

B. 90 m

C. 21 m

D. 25 m

E. 32 m



Specific water retention is least ____.

A. Coarse gravel

B. Silt

C. Coarse sand

D. Clay

E. Fine sand



If X>Y and Z are positive numbers, which of the following relationships is not true

A. XZ>YZ

B. Z-X>Z-Y

C. X+Z>Y+Z

D. X/Z >Y/Z

E. None of the above

GENERAL PAPER


If the void ratio of a soil sample is 25%, the porosity is

A. 0.20

B. 0.25

C. 0.50

D. 0.75

E. 1.00

ENGINEERING GEOLOGY


A Carnot engine with an efficiency of 52.7% operates between the temperature 28.96oC and ToC, producing 56kJ of work. Calculate the temperature T.

A. 65.40oC

B. 75.80oC

C. 79.60oC

D. 201.30oC

E. 365.80oC

PROCESS SYSTEM ENGINEERING



In the gravity method of geophysical prospecting, drift correction compensates for:

A. Elevation variation

B. Density variation

C. Variation in Latitude

D. Instrument drift

E. Variation in Longitude
The Correct Answer is Option []
EXPLORATION GEOPHYSICS AND STRUCTURAL GEOLOGY


Shales can act

A. As source and reservoir rock for gas

B. Only as source for gas

C. Only as aource for oil

D. Only as reservoir for gas

E. Only as seal for oil5
The Correct Answer is Option []
PETROLEUM GEOSCIENCES



In the electromagnetic (EM) prospecting, laboratory scale modeling aids the understanding and interpretation of anomalies. Establish the similitude equation that relates a full scale field situation (1) and the equivalent laboratory model (2) assuming the electric conductivity (s) and the linear dimension (l) are 1000 and 0.001 times the corresponding parameters of the field situation.

A. 103f1 = f2

B. f1 = 103f2

C. f1 = 10-3f2

D. 106f1 = f2

E. None of the above
The Correct Answer is Option []
EXPLORATION GEOPHYSICS AND STRUCTURAL GEOLOGY


If the void ratio of a soil sample is 25%, the porosity is

A. 0.20

B. 0.25

C. 0.50

D. 0.75

E. 1.00

ENGINEERING GEOLOGY