UET ECAT Past Paper MCQs With Answers 2011

UNIVERSITY OF ENGNEERING AND TECHNOLOGY,
LAHORE
ENTRANCE TEST – 2011
For F.Sc and Non-F.Sc. Students
Time Allowed: 100 Minutes Total MCQs: 100
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Instructions:
(i) Read the instruction on the MCQ Response From carefully.
(ii) Choose the single best answer for each question.
(iii) Candidates are strictly prohibited from giving any identification mark except Roll No. & Signature in the specific columns only.
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COMPULSARY QUESTION FOR IDENTIFICATION
Q-ID What is the color of your question Paper?

A) BLUE C) RED
B) GREEN D) YELLOW Ans: Color of your question Paper is green. Fill the corresponding to letter ‘B’ Against ‘ID’ in your MCQ (Exactly as shown in the Diagram).

-ID
-1
-2
-3

circle response form

 PHYSICS 

1. N force is required to fracture the naked skull.
   A) 5 B) 500
   C) 50 D) 5000
2. A typical rocket uses 10,000 kgs-3 of fuel and ejects the burnt gases at a speed of:
   A) 2000 ms-1 B) 4000 ms-1
   C) 3000 ms-1 D) 5000 ms-1
3. When a rocket is projected at an angle of 300 with initial speed 980 ms-1, the time is:
   A) 10 Sec B) 15 sec
   C) 100 sec D) 520 sec
4. All the food that we eat is one day in about the same energy as litter of milk is:

A) 1
C) 2 3

B) 1
D) 2

5. Solar energy as light passes through atmosphere.
   A) Increases B) Constant
   C) Decreases D) None
6. Geyser is an interesting phenomenon of energy.
   A) Tidal B) Solar
   C) Geothermal D) Electrical
7. The flight of an aeroplane is due to on the upper of wings.
   A) Increased pressure
   B) Decreases velocity
   C) Increased velocity and decreased pressure D) None
8. What is the average translation K.E of molecules in gas at temperature 270C?
   A) 6.2 x 10-12 B) 1.28 x 410-10
   C) 2.34 x 10-10 D) None
9. The maximum percentage efficiency of engine operating between 2270C and 200C is:
   A) 56 % B) 50 %
   C) 44 % D) 40 %
10. Centripetal acceleration is a acceleration.
    A) Instantaneous B) 4000 ms-1
    C) Uniform D) Both A and B
11. The minimum time period for a satellite revolving around the earth is approximately.
    A) 54 min B) 52 min
    C) 72 min D) 33 min
12. The maximum velocity that can be achieved by a body performing SHM is equal to:
    A) Wx2 B) W2/x
    C) wx2
    0
13. The speed of sound in hydrogen is times its speed in oxygen.
    A) Two B) Four
    C) Three D) Five
14. The near point for human eye is:
    A) 20cm B) 30 cm
    C) 25 cm D) Infinite
15. Waves transport energy without transporting.
    A) Power B) Matter
    C) Work D) None
16. The of the light is inversely proportional to the refractive index.
    A) Wavelength B) Speed
    C) Frequency D) Energy
17. Energy acquired by a charged particle of 2e moving through a potential difference of 5v is:
    A) 7 ev B) 10J
    C) 1.6 x 10-28 D) None
18. The device which converts the chemical energy into electrical energy is called:
    A) Thermocouple B) Solar cell
    C) Chemical cell D) Thermistor
19. It the color code on a carbon resistor from left to right are white, violet and red, then the resistance will be:
    A) 2700 ohm B) 97 ohm
    C) 970 ohm D) None
20. In step up transform current across secondary:
    A) Increases B) Constant
    C) Decreases D) None
21. new particles may be discovered with the help of:
    A) Wilsons cloud chamber B) Solid state detector
    B) Geiger Muller counter D) Geiger counter and fast detector
22. Half-life of radium is 1590 years. In how many years shall the ea4th loss all its radium due to radioactive decay?
    A) 1590 x 106 year B) 1590 x 1012 year
    C) 1590 x 1024 year D) Never
23. When two identical waves are superposed , the velocity of the resultant wave:
    A) Decreases B) Remain unchanged
    C) Increases D) Becomes zero
24. The resistance of a conductor depends upon:
    A) Thermal conductivity B) Specific heat
    C) Internal energies D) Temperature difference
25. The resistance of a conductor depends upon:
    A) Nature of conductor only
    B) Potential difference between its ends
    C) Magnitude of the current flowing through it
    D) Nature, dimension and physical state of conductor
26. When the frequency of oscillator is slightly greater than that of resistance amplitude will be.
    A) Rapidly increases B) Rapidly decreases
    C) Remains constant D) None
27. Semi-conductor behaves as at ok.
    A) Insulator B) Pure conductor
    C) Superconductor D) None
28. The value of permittivity of free space is 8.85 x 10-12:
    A) C3N-2m-2 B) C2N-1m-3
    C) NC3m-3 D) All
29. Which material would provide best shielding for Coulombs’ force?
    A) Mica B) Glass
    C) Benzene D) Paper
30. In alternating current, inductor behaves like.
    A) Battery B) Conductor
    C) Resistor D) None MATHEMATICS
31. sin   sin 2      ?
     
     
    A) 0 B) 1
    C) cos2  D) 2sin2 
32. The multiplicative inverse of (1, 5) is:

A) 


1  5 
, 
26 26 

B)   1 , 5 
 

C)   1 ,


 5 



D)  1 , 5 
 

33. The real part of   i2 is:
    A) 2 B) -2
    C) 2 D) None

q  p

is only false when:

A) q true and p false B) q false and p true
C) Both false or both true D) None

35. If

A)

A1
0
1
0

1 
 1
0
1

then

A 1 = ?

0
B) 1

1
0

Solution set of 41x  42x  10 is:

D) 0
0

1
1

A)  1 ,  1

B)  2 , 1 

 2 2 

 
 3 2 

C)   1 , 3 
 
 2 2 

37. If first term of A.P 6 and 5th term is 14 then 20th term is:
    A) 44 B)46
    C) 43 D)14
      1  35 2

 
 2 
  2 

= ?

35 

  1 

35 

A)  
 2 

B) 

 1 


2 
35 

xa  ?
(a  1)( x  1)

D)  
 2 

A) 2 
x  1
C) 5 
x  1
th

2
x  1
1
x  1

3 5 7

B) 4 
x  1

5
x  1

40. The 5

term of 1,

, ,
2 4 8

……….

is:

A) 13 B)
12

15

120

C) 11 24

41. The vulgar fraction of 1. 24 24 24 24 24 24 24 is:
    A) 124
    89
    C) 123 D) 122
    89 99
42. The sum of the 1  3 + 5  3 + 9  3 + 13  3 +…….+3(2x+1) is:
    A) 3n(n – 2) B) 3(n + 2)
    C) 3n(2n – 1) D) 3n(n + 1)

43.

sin   ?
2

A) 1  cos B)
2 2

C) 1  cos
2

D) None

44. The principle value of sin1 sin 2  :

A)  2
3

 
 3 

B) 2 3

45.

46.

47.

48.

49.

50.

51.

52.
dx
A)

C) 2

53. In case of 4  x2 , the suitable substitution is x = ?
    A) 2 sin  B) 2 cos 
    C) 2 tan  D) 2 sec 
54. fxe xdx  ?

A)  ex (x  1)  c
C)  ex xe x  e

55. The center of eclipse

x  22 25

y  32
  1
16

B) ex (x  1)  c
D) Both b and c

A) (2 – 3) B) (2, 3)
C) (–2, – 3) D) (-2, 3)

56. The point of intersection of 2x  3y  8 and 3x  3y  1 is:
    A) (1, 2) B) (2, 3)
    C) (-1, 3) D) None
57. If A  7i2 j  k and B  4i  2 j  3k

 1

then find a unit vector perpendicular to plane containing A and B.
1
B) (5i  40 j  7K )
185
1

C) (7i  10)  6K ] 125

D) (7i  6 j  10 K ) 185

58. When x4  2×2  kx2  3 is divided by x – 2, the remainder is 1. Then the value of k will be
    A) 13 B) -8.5
    C) 12.4 D) 6
    a12  bn

41

bn5

is GM. Between a and b if n-:

A) 1 B) 0
C) 0.5 D) -0.5

60. The solution set of equation

2x  2 y  1 and

x  y  6 ?

A) {} B) {1}
C) {2, 3} D) {0}

 CHEMISTRY   

61. The state of hybridization in [??(???)?]?+
    A) sp3 B) dsp2
    C) ds3p2 D) sp2
62. Which of the following reaction of HNO3 is true?
    A) 3Cu + 8HNO3  3Cu(NO3)2+ 2NO + 4H2O
    B) 3Cu + 8HNO3  3Cu+ NO + 3H2O
    C) 3Cu + 8HNO3  3CuNO3+ 2NO + 4H2O
    D) Cu + 4HNO3  3Cu(NO3)2+ 2NO + 4H2O
63. Acetylene under pressure over an organo-nickel catalyst at 700C converts into:
    A) Benzene B) Benzoic acid
    C) Toluene D) Phenol
64. The mode of hybridization in alkane is and three hybrids orbital is formed.
    A) Sp2 B) sp
    C) Sp3 D) sp4
65. Which of the following agent oxidized the aldehydes to carboxylic acid?
    A) Alcohol B) Tollen’s reagent
    C) Grignard reagent D) Both A and C
66. The IUPAC name of formic acid is acid.
    A) Methanoic acid B) Propanoic acid
    C) Ethanoic acid D) Pentanoic acid
67. Iodine gives deep blue color with:
    A) Amyloectane B) Polysaccharides
    C) Amylase D) Oligosaccharides
68. The part of fourdrinier table apparatus which discharges a uniform jet of pulp suspension is:
    A) Head box B) Press section
    C) Fourdriner table D) Flow
69. The gas used to predict earthquake:
    A) Helium B) Neon
    C) Radon D) Krypton
70. The enzyme which is used in the treatment of blood cancer in children is:
    A) Asparaginase B) Alkaline phosphate
    C) Thormbin D) LHD-1
71. Which of the following test in the treatment of blood cancer in children is:
    A) Sodium nitroxide B) Benedict solution
    C) Fehming solution D) Taller solution
72. Sodium reacts with alkyl halides in ether to form alkanes, the reaction is known as:
    A) Wurtz synthesis B) Grignard reagent
    C) Both D) None
73. When the solute has gone in the ether layer then it is separated by the ether.
    A) Boiling B) Evaporating
    C) Heating D) Mixing with H2O
74. Oxidation state of manganese in KMnO4 is:
    A) +6 B) +8
    C) +7 D) +9
75. Which of the following forms ideal solution?
    A) Ethyl iodide and promo-benzene B) Water and alcohol
    C) Bene and ether D) Water and hydrochloric acid
76. Determine the mole fraction of C12H22O11 in 1.8 Kg of water
    A) 1.3 B) 0.77
    C) 0.92 D) 0.67
77. Density of methane at 0.20 525 atm and 1270C is:
    A) 2.5 B) 0.1
    C) 04 D) none
78. Which of the following gas has maximum value of e/w.
    A) H2 B) O2
    C) N2 D) CO2
79. The phenomena in which the substance exists in more than one crystalline fo0rm is called:
    A) Polymorphism B) Allotropy
    C) Isomorphism D) Habit of crystal
80. The crystalline form of AgNo3 are:
    A) Rhomboidal and Arthohombic B) Trigonal and Arthorhombic
    C) Rhombohedral and Arigonal D) None
81. Which of the following is used in the sterilizing the medical equipment.
    A) Plasma B) Chlorine

C) Liquid crystal D) None

82. Photosynthesis is a order chemical reaction.
    A) 0th B) 2nd
    C) 1st D) third
83. Black background is obtained in the:
    A) Atomic emission spectrum B) Atomic absorption spectrum
    C) Continuous spectrum D) Discontinuous spectrum
84. The wavelength of electron moving in Bohr’s first orbit is similar to that of:
    A) X-rays B) ?- rays
    C) Cathode rays D) ?- rays
85. Which process is used to separate solute from solution?
    A) Solvent extraction B) Sublimation
    C) Filtration D) Crystallization
86. Calorie is equivalent to:
    A) 0.4184 J B) 4.181 J
    C) 41.84 J D) 4184 J
87. Which of the following is not a state function?
    A) Internal energy B) Pressure
    C) Volume D) Work
88. The molarity of 20% w/w solution of ca in water is:
    A) 4.32 B) 2.03
    C) 6.25 D) 9.75
89. The solubility of is decreased by increasing temperature:
    A) KO B) K2Cr2O7
    C) Pb (NO3)2 D) Na2SO4
90. The unit of rate constant is the same as that of the rate of reaction in order reaction:
    A) 1st B) 2nd
    C) 3rd D) 4th ENGLISH
    Spot the error in the following sentences.
91. When chips remembered things like this, he often felt that he will writethem A B C D
    down and Make a book of them.
92. They were daughters of a hardworking washermen who went about from house to House A B C D
93. What is meant by birth rate and death rate and how do they affect the population? A B C D
94. They did not guess how closely he had kept in touch with across the road. A B C D
95. A) She drenched of herself with perfume.
    B) She drenched herself by perfume. C) She drenched herself into perfume.
    D) She drenched herself in perfume.
96. A) A day later he reached his first glimpse of Lahore
    B) A day later he took his first glimpse of Lahore.
    C) A day later he found his first glimpse of Lahore D) A day later he caught his first glimpse of Lahore.
97. A) This has a bad impact on economy.
    B) This has a bad impact to the economy.
    C) This has a bad impact for the economy.
    D) This has a bad impact over the economy.
98. A) He saved him from dying of thirst
    B) He saved him for dying of thirst
    C) He saved im form dying from thirst
    D) He saved him for dying from thirst
99. A) They try to pacify him for kindness and affection
    B) They try to pacify him in kindness and affection.
    C) They try to pacify him by kindness and affection. D) They try to pacify him with kindness and affection.
100. A) Why did you disagree with me?
     B) Why did you disagree to me?
     C) Why did you disagree on me?
     D) Why did you disagree by me?