Chemical Engineering :: All Aptitude Test ::

1.What is the dimension of area?
A. L 3
B. L 1
C. L 2
D. L 3

2.What is the dimension of volume?
A. L 3
B. L
C. M L 3
D. L 3

3.What is the dimension of work?
A. M L 1 T -2
B. M L 2 T
C. M L 2 T -1
D. M L 1 T -2

4.What is the dimension of temperature?
A. M α
B. α
C. α 2
D. M α

5.What is the dimension of mass?
A. M L T
B. L
C. M L
D. M L T

6.What is the dimension of length?
A. M L
B. L
C. M
D. M L

7.What is the dimension of time?
A. M L
B. M
C. T
D. M L

8.Which of the following is not known as a core group?
A. Flow characteristics
B. Fluid property
C. Geometric property
D. Flow characteristics

9.What is the dimension of resistance?
A. M L T -1
B. M L T -2
C. M L T
D. M L T -1

10.If there are 6 physical quantities and 3 fundamental units, then the number of pi terms are?
A. 1
B. 2
C. 3
D. 1

11.The study of predicting prototype conditions from model observations is known as?
A. Model
B. Prototype
C. Similitude
D. Model

12.S.I unit of heat is?
A. J
B. W
C. J s
D. J

13.S.I unit of the coefficient of volumetric expansion is?
A. Per degree
B. Per second
C. Per meter
D. Per degree

14.S.I unit of specific heat is?
A. J/K
B. k J/kg K
C. kg/K
D. J/K

15.S.I unit of dynamic viscosity is?
A. m s /kg
B. m/kg
C. kg/m s
D. m s /kg

16.The mole fraction of the solute in one molal aqueous solution is
A. 0.009
B. 0.018
C. 0.027
D. 0.009

17.5 cm3 of acetone is added to 100 cm3 of water, the vapour pressure of water over the solution will be
A. equal to the vapour pressure of pure water.
B. less than the vapour pressure of pure water.
C. greater than the vapour pressure of pure water.
D. equal to the vapour pressure of pure water.

18. The density of a solution prepared by dissolving 129g of urea in 1000g of water is 1.15g/ml. The molarity of this solution is
A. 1.78M
B. 1.02M
C. 2.05M
D. 1.78M

19. If at a certain temperature the vapour pressure of pure water is 25 mm Hg and that of a very dilute aqueous urea solution is 24.5 mm Hg, the molality of the solution is:
A. 0.02
B. 1.2
C. 1.11
D. 0.02

20. The relationship between osmotic pressure at 273K when 10g glucose (P1), 10g urea (P2) and 10g sucrose (P3) are dissolved in 250ml of water is
A. P1 > P2 > P3
B. P3 > P1 > P2
C. P2 > P1 > P3
D. P1 > P2 > P3

21.Two liquids X and Y form an ideal solution. At 300K vapour pressure of the solution containing 1mol of X and 3 mol of Y is 550 mm Hg. At the same temperature, if 1 mol of Y is further added to this so
A. 300 and 400
B. 400 and 600
C. 500 and 600
D. 300 and 400

22. Mixing up equal volumes of 0.1M NaOH and 0.1M CH3COOH yields a solution which is
A. basic
B. acidic
C. neutral
D. basic

23. Equal volumes of 0.1M AgNO3 and 0.2M NaCl are mixed. The concentration of NO3– ions in the mixture will be
A. 0.1M
B. 0.05M
C. 0.2M
D. 0.1M

24.Which of the following should be done in order to prepare 0.4M NaCl starting with 100ml of 0.3M NaCl?
A. add 5.85g of NaCl
B. and 20ml water
C. add 0.01 mol NaCl
D. add 5.85g of NaCl

25.The volume of 0.025M H3PO4 required to neutralise 25ml of 0.03M Ca(OH)2 is
A. 20ml
B. 25ml
C. 40ml
D. 20ml

26.Mixing of table salt in water makes:
A. Mixture
B. Compound
C. Colloidal
D. Mixture

27.Which of the followings is electrolyte?
A. glucose
B. NaCI
C. sugar
D. glucose

28.For example 10 gm of sodium chloride is added in 90 gm of • water. This solution is
A. 10%
B. 50%
C. 90%
D. 10%

29.The number of moles of a solute per liter of a solution is
A. Molality
B. Normality
C. Molarity
D. Molality

30.The number of moles of a substance dissolved in in 1000 cm3 of solution is:
A. Molality
B. Normality
C. Molarity
D. Molality


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