Free Dangote  CHEMICAL / PETROLEUM ENGINEERING Past Questions and Answers

Free Dangote CHEMICAL / PETROLEUM ENGINEERING Past Questions and Answers

Can you ace these Dangote CHEMICAL / PETROLEUM ENGINEERING Past Questions and Answers? Start honing your skills with some past questions practice and get a preview of what you can expect on test day.

We pulled theseDangote CHEMICAL / PETROLEUM ENGINEERING questions from our study pack Dangote CHEMICAL / PETROLEUM ENGINEERING aptitude-test past questions studypack. Each sample question includes correct answers, so you can see how to crack it!

Note about the test format: On the Dangote CHEMICAL / PETROLEUM ENGINEERING aptitude test, you'll face 2 test sections: SECTION 1: General Aptitude test (100 questions) and SECTION 2: Technical / Course specific test (120 questions – answer any 100)

Sample Access bank Aptitude Test Past Questions and answers

1. What is the energy balance of closed system?
a) Matter in the system is constant
b) Energy in the system is constant
c) Neither energy nor matter is constant
d) Both of energy and matter are constant

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The correct answer is A.

Explanation:
For closed system energy balance, matter in the system is constant.


2. Which of the following is a state function?
a) Work
b) Entropy
c) Heat
d) None of the mentioned

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The correct answer is B.

Explanation:
Entropy is a state function as it does not depend on the path of the process.


3. What is the work of drying process?
a) Decreases the moisture content
b) Vaporizes water
c) Increases the moisture content
d) None of the mentioned

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The correct answer is A.

Explanation:
Drying decreases the moisture content of air.


4. 10 J of heat is taken off from a steady state system, what is the work done on the system?
a) – 10 J
b) 10 J
c) – 5 J
d) 5 J

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The correct answer is B.

Explanation:
0 = – 10 + W, => W = 10 J.


5. Which of the following has steepest P-V curve?
a) Adiabatic
b) Isothermal
c) Isobaric
d) None of the mentioned

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The correct answer is A.

Explanation:
Slope of adiabatic curve is greater than that of isothermal and isobaric, so it has the steepest P-V curve.


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6. What is the change potential energy of a stone of mass 5 Kg that falls from a cliff 10 m high?
a) 5 J
b) 50 J
c) 500 J
d) 5000 J

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The correct answer is C.

Explanation:
PE = 5*10*10 = 500 J.


7. What is the relative saturation of a gas with partial pressure 38 mm Hg and vapor pressure 1 torr?
a) 0.05
b) 0.5
c) 2
d) 38

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The correct answer is D.

Explanation:
1 torr = 1 mm Hg, => relative saturation = 38/1 = 38.


8. What is the number of phases in a system with 2 degrees of freedom and 2 components?
a) 1
b) 2
c) 3
d) 4

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The correct answer is B.

Explanation:
P = 2 – 2 + 2 = 2.


9. Liquid benzene having CP = 29 J/oC, is heated from 5oC to 10oC, what is the enthalpy change?
a) 29 J
b) 145 J
c) 195 J
d) 290 J

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The correct answer is B.

Explanation:
ΔH = 5∫1029.dT = 29*5 = 145 J.


10. A reaction has produced 1 mole of water vapor and 5 liter of bone dry air at 27oC and 5 atm, what is the humidity?
a) 100%
b) 104%
c) 115%
d) 169%

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The correct answer is B.

Explanation:
Moles of bone dry air = 1, => Humidity = 1/1*100 = 100%.


Free Dangote  CHEMICAL / PETROLEUM ENGINEERING Past Questions and Answers

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