300 Biology MCQs and engineering paper 2017 etea with hints

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engineering paper 2017 with hints

Engineering 2017

1. The maximum error in the measurement of mass and length of the side of a cube are 3% and 2% respectively. The maximum error in the measurement of its density will be:

(a) 3% (b) 5% (c) 6% (d) 9%

ANSWER: (d) page No: 12.13,14

2. Which of the following is both unit less and dimensionless:

(a) Angle (b) Solid angle

(d) Refractive index

ANSWER: (d) Page No: 16 (Sub Topic: 1.9.2)

3. For two vector

and

it holds that

| cos q then it holds

for

if and only if

(a) When

and

are parallel

(b) When

and

are perpendicular

and

are in the opposite direction

(d) When

and

are parallel but opposite direction

HINT: Parallel vectors have equal.

ANSWER: (a) Page No: 25 (General Question)

4. Which pair contains one vector and one scalar quantity?

(a) Displacement acceleration

(b) Force kinetic energy

(d) Power speed

ANSWER: (b) Page No: 25 (General Question)

5. A car travels a distance s on a straight road in 2 hours and then returns to the starting point in the next 3hour. Its average velocity is:

(a)

(b)

(c)

(d) zero

ANSWER: (D) Page No: 54

6. The numerical ratio of displacement to distance is:

(a) Always less than one

(b) Always equal to one

(d) Equal to or less than one

HINT:

≤ 1

ANSWER: (D) Page No: 54

7. The area under the acceleration time graph represent:

(a) Displacement (b) Velocity

HINT:

ANSWER: (c) Page No: 57

8. When we kick a stone, we get hurt it happens due to:

(a) Inertia (b) Velocity

ANSWER: (c) Page No: 62 (Sub Topic: 3.6.3)

9. Angular momentum has the same unit as:

(a) Impulse x distance

(b) Linear momentum x time

(d) Power x time

ANSWER: (a) Page No: 64

10. Two bodies of mass m and 4 m are moving with equal kinetic energies. The ratio of their linear momentum will be:

(a) 1:4 (b) 4:1 (c) 1:2 (d) 2:1

ANSWER: (c) Page No: 63

11. A ball is projected upwards. Its acceleration at the highest point is:

(a) Zero (b) Directed upwards

(d) Can’t be predicted

ANSWER: (c) Page No: 69

12. A man of mass 60 kg climbs up a 20 m long staircase to the top of a building 10 m high. What is the work done by him: Take g = 10 ms^-2

(a) 12 KJ (b) 6 KJ (c) 3 KJ

(d) None the above

HINT: W.D = mgh

= 60 x10x10 J

= 6 KJ

ANSWER: (b) Page No: 90

13. For a body moving with constant speed in a horizontal circle, which of the following remains constant:

(a) Velocity (b) Centripetal force

HINT: K.E because it is scalar

K.E =

m (V,V)

ANSWER: (d) Page No: 89

14. The kinetic energy of a body of mass 1 kg and momentum 2Ns is equal to:

(a) 1J (b) 10J (c) 5J (d) 2J

ANSWER: Page No: 89

15. The unit of gravitational potential is

(a) Joule (b) Joule / kilogram

HINT: V=

ANSWER: (b) Page No: 95

16. The angular velocity of a second hand in watch is :

(a)

(b)

(c)

(d)

ANSWER: (b) Page No: 115

17. A fly wheels rotates at a constant speed of 3000 rpm (rev/min). The angle described by the shaft in radian in one second is:

(a) 2p (b) 30p (c) 100p (d) 3000p

ANSWER: (c) Page No: 115

18. A centripetal force F acts on a body moving with angular speed

. If the angular speed is tripled then the magnitude of centripetal force becomes;

(a) 8F (b) 9F (c) 3F (d) 4F

HINT: Fc = -mw²r

w²

(3)²w²

9 w²

Answer: (b) Page No: 121

19. If sphere is rolling the ratio of its rotational energy to total energy is given by:

(a) 7:10 (b) 2:5 (c) 10:7 (d) 2:7

ANSWER: (b) Page No: 124

20. A ring and a disc have same mass and same radius. If we denote the moment of inertia of disc by

and that of ring by

then:

(a)

(b)

(c)

ANSWER: (B) Page No: 123,124

21. The angular momentum of a wheel change from 2L to 5Lin 3 seconds. The magnitude of the torque acting on it is:

(a)

(b)

(c)

(d) L

HINT: T =

= L

ANSWER: (d) Page No: 125

22. If a gymnast sitting on a rotating stool with his arms outstretched suddenly lowers his hands:

(a) The angular velocity decreases

(b) His moment of velocity decreases

(d) The angular momentum increase

HINT: L=IW => I

1/w

When lower his hands 1 decreases in order to keep.

ANSWER: (a) Page No: 125

23. The orbital velocity ‘v’ and the radius ‘r’ of the satellite are related by

(a)

(b)

(c)

(d)

HINT: U

ANSWER: (d) Page No: 133

24. A fireman wants to slide down a rope. The breaking strength for the rope is

of the weight of the man with what minimum acceleration should the fireman slide down

(a)

g (b)

g (c)

g (d) Zero

ANSWER: (a) Page No: 135

25. A man of mass 90 kg is standing in an elevator whose cable broke suddenly , if the elevator falls freely , the force exerted by the floor on the man is :

(a) Zero (b)

ANSWER: (b) Page No:136

26. Two springs of spring constant k₁ and k₂ are stretched by the same force. They are stretched by x₁ x₂ respectively, if K₁> K₂ then:

(a) x₁= x₂ (b) x₁> x₂ (c) x₁< x₂

(d) Depends on the length of the spring

HINT: k

K₁ <K₂ => x, >x₂

ANSWER: (b) Page No: 172

27. A spring is stretched by 5 cm. Its potential energy is E. If it is stretched by 10 cm, is potential energy will be:

(a) 2E (b) 4E (c) 8E (d) 16E

ANSWER: (b) Page No 178 (Sub Topic: 7.5.1)

28. A sound wave has a speed of 330 m/s and a frequency of 50 Hz. What is a possible distance between two points on the wave that have a phase difference of

(a) 0.03m (b) 1.1m (c) 2.2m (d) 6.6m

ANSWER: (b) Page No: 202 (Sub Topic: 8.3.3)

29. A man standing next to a stationary train hears sound of frequency 400 Hz emitted from the train’s horn. The train then moves directly away from the man and sounds its horn when it has a speed of 50 m s^-1. The speed of sound is 340 m s^-1. What is the difference in frequency of the sound heard by the man on the two occasions?

(a) 51Hz (b) 69Hz (c) 349Hz (d) 469Hz

ANSWER: (c) Page No:230 (Sub Topic: 8.15.2)

30. Which one of the following properties of light does not change with the nature of medium?

(a) Frequency of light

(b) Wavelength of light

(d) All of those

HINT: Frequency does not depend on medium.

ANSWER: (a)

31. Monochromatic green light of wave length

illuminates a pair of slits 1mm apart the separation of bright lines on the interference pattern formed on a screen 2m away is

(a) 0.25m (b) 0.1mm (c) 1.0mm (d) 0.01m

ANSWER: (c) Page No: 253

32. Colour fringes observed in soap bubbles are the example of.

(a) Diffraction (b) Interference

ANSWER: (d) Page No: 257

33. What is correct for all transverse waves?

(a) They all involve the oscillation of atoms

(b) They can all be polarized

(d) Both (a) & (b) are correct

ANSWER: (b) Page No: 269

34. There are two charges each of

the ratio of the force acting on them will be

(a) 1:25 (b) 1:5 (c) 1:1 (d) 5:1

ANSWER: (c) Page No: 5

35. In the M.K.S system of units

equal

(a)

(b)

(c)

(d)

ANSWER: (c) Page No: 5

36. Charge is distributed uniformly on the surfaced of large flat plate the electrical held 2cm from the plate is

what is the electrical field at 4cm from the plate.

(a)

(b)

(c)

(d)

HINT: Electric filed of uniform change plate is independent distance.

ANSWER: (b) Page No: 27 (Sub opic: 11.5.1.3)

37. Two identical capacitor each with capacitance C, are connected in parallel and the combination is connected in series to a third identical caoacitor. The equivalent capacitance of this arrangement is

(a)

(b) c (c) 2c (d) 3c

ANSWER: (a) Page No: 42 (Sub Topic: 11.10.3)

38. A student kept her 60 watt acid 120 volt study lamp turned on from 2:00PM until 2:00AM. How many coulombs of chage went through it?

(a) 3600 (b) 7200

HINT: Here P = 60watt V=120

So I=

= 0.5 A

Now t=12 hours = 12 x 3600 sec

ANSWER: (a) Page No: 64

39. There is a current of 3.2 amp in a conductor. The number of electrons that cross any section normal to the direction of flow per second is:

(a)

(b)

(c)

(d)

ANSWER: (a) Page No: 4

40. Which statement is not valid?

(a) Current is the speed of the charged particles that carry it.

(b) Electromotive force (e.m.f) is the energy converted to electrical energy from other forms per unit charge.

(c) The potential difference (p.(d) between two points is the work done per unit charge when moving charge from one point to another.

(d) The resistance between two points is the (p.d.) between the two points per unit current.

HINT: V= IR where R is constant and it depend on nature dimension and physical state.

ANSWER: (d) Page No: 68

41. The example of a non-ohmic resistance is

(a) Ge-resistance (b) Carbon resistance

ANSWER: (d) Page No: 69

42. Two copper wires S and T of equal length are connected in parallel. A potential difference is applied across the ends of this parallel arrangement. Wire S has a diameter of 3.0 mm. Wire T has a diameter of 1.5 mm. What is the value of the ratio

(a)

(b)

ANSWER: (a) Page No: 67

43. The feminine of MILKMAN is:

(a) Milkgirl (b) Milkmaid

ANSWER: (d) Page No: 69

44. Alkali metals lime “Rb” & “Cs” catch fire in air and produce superoxide such as:

(a) Rab₂O & Cs₂O (b) RbO₂& CsO₂

ANSWER: (b) Page No 21 (Sub Topic: 13.2.3.1)

45. Solenoid B has the twice radius and six time the number of turns per unit length as solenoid A. The ratio of the magnetic field in the interior of B to that in the interior of A is:

(a) 2 (b) 4 (c) 6 (d) 1

ANSWER: (c) Page No: 120

46. What behavior is the copper exhibiting?

(a) Brittle only (b) Elastic only

HINT: Substances which undergo plastic deformation until they break are known as ductile substances, load copper and wrought iron are ductile.

ANSWER: (c) Page No: 249

47. The diode is used as:

(a) A modulator (b) An amplifier

HINT: DIODE is used as rectifies,

ANSWER: (c) Page No: 279

48. A photon of frequency f has a momentum associated with it if C is the velocity of light this momentum is:

(a) hf (b)2hf (c)

(d)

ANSWER: (c) Page No:

49. A photon of frequency f has a momentum associated with it if C is the velocity of light this momentum is

(a)

(b)

(c)

(d)

ANSWER: (c) Page No: 319

50. The uncertainty in position of an electron in a certain state is

m the uncertainty in its momentum might be

(a)

kg. m/s (b)

kg. m/s

(c)

kg. m/s (d)

kg. m/s

ANSWER: (d) Page No: 330

51. When a hydrogen atom makes the transition from the second excited state to the ground state (at-13.6ev) the energy of the photon emitted is

(a) 1.5ev (b) 9.1ev (c) 12.1ev (d) 10.2ev

HINT: 2^nd Excited state means n = 3

= E₃ – E₁ = -1.51- (-13.6)

= 12.1 ev

ANSWER: (c) Page No: 355

52. Which equation represents b + decay?

(a) Neutron® proton +positron +antineutrino

(b) Neutron ® proton + positron + neutrino

(d) Proton + neutron+ positron + neutrino

HINT: In positive

decay p

N+e⁺+r

While in –

decay.

ANSWER: (d) Page No: 389

53. What is not conserved in nuclear processes?

(a) Charge (b) momentum

(d) The total number of nucleons

HINT: The total no of neutrons are no

unserved.

ANSWER: (c) Page No: 400

54. What is not conserved in nuclear processes?

(a) Charge (b) momentum

(d) The total number of nucleons

HINT: The total no of neutrons are not

unserved.

ANSWER: (c) Page No: 400

55. What is proton?

(a) A hadron

(b) A particle consisting of two down quarks and one up dark

(d) A positive lepton

HINT: Hydrogen because proton is made up of two up and I down quark and neutron two down and 1 up.

ANSWER: (a)

56. X-ray photon due to transition from M-shell to the vacancy in the k-shell is called:

(a) K

characteristic of X-ray

(b) K

characteristic of X-ray

(d) K characteristic of X-ray

ANSWER: (b) Page No: 53 (Sub Topic: 2.4.2)

57. Select the one having half-filled P orbital’s on losing an electron:

(a) Nitrogen (b) Lithium

HINT: 0(8) = 1s², 2s², 2p⁴ on losing 1 electron it becomes 1s², 2s², 2p³

ANSWER: (c) Page No: 65 (Sub Topic: 2.6.4)

58. When a force retards the motion of a body the work done is:

(a) Zero (b) Negative

ANSWER: (b) Page No: 84

59. What is the relative rates of diffusion of equal volume (500 cm³) of hydrogen and oxygen under same condition of temperature and pressure?

(a) 4:1 (b) 8:1 (c) 16:1 (d) 2:1

ANSWER: (a) Page No: 126 (Sub Topic: 4.8.1)

60. Select the correct order in boiling point:

(a) Butonal<2-Butanol<2 Methyl-2-proponal

(b) Butanol<1-Butonol<2-Methyl-2-propanol

(d) 2-Methyl-2Propanol<2-Butanoic<1-Butonol

ANSWER: (d) Page No: 145

61. Consider the following reaction

When Kp at 500K is 0.85 . what will be the value of Kc at the same temperature

(a)

(b)

(c)

(d)

HINT: Kp = Kc (RT)^∆n

Kc = KP/(RT)¹

ANSWER: (a) Page No: 191 (Sub Topic: 7.1.3)

62. Which of the following is an acid?

(a)

(b)

(c)

(d)

HINT: The specie hawing ionizable H⁺ is acid.

ANSWER: (c) Page No: 213

63. The equilibrium constant for the Protolysis of ammonium ion,

. The

of 1.0 M

solution is closet to which of the following.

(a) 9 (b) 7 (c) 5 (d)3

HINT: Ka of NH4⁺ = 5.6 x 10^-10

Molarity = 1 M

[H⁺] =

[H⁺] = 2.35 x 10^-5

PH = 4.8 = 5

ANSWER: (c)

64. A solution 0.1 M in H₂CO₃ and 0.1 M in NaHCO₃ is made. The pH of the resulting solution should be closest to

Note: H₂CO₃Pka = 6.37

(a) 6.37 (b) 4.35 (c) 6.28 (d) 7.37

HINT: P^H =PKa + 10g

P^H =37 + log

P^H= 6.37 + 0 = 6.37

ANSWER: (a) Page No: 224 (Sub Topic: 8.6.2)

65. Solubility of non-polar solute in non-polar solvent is because of:

(a) Their same molecular sizes

(b) Large difference in molecular sizes of solute and solvent

(d) Both (a) & (c)

HINT: The attractive fores found in the molecules of solute and solvent is less than the attractive forces in the solute solvent molecules.

ANSWER: (c) Page No: 263 (Sub Topic: 10.1.3)

66. Select completely immiscible pair of liquids:

(a) Phonol-water system

(b) Trimethylamine and water system

(d) Ethanol and water system

ANSWER: (c) Page No: 264 (Sub Topic: 10.1.3)

67. Select an incorrect statement about collides.

(a) Colloidal particles carry charges

(b) Addition of electrolytes coagulates the solution

(d) Every solid substance can be brought to colloidal state

ANSWER: (c) Page No: 261 (Sub Topic: 10.1.1)

68. Molality of 10% w/w NaOH solution is

(a) 1.5m (b) 2.0m (c) 2.5m (d) 3.5m

HINT: Molality =

As solute solute = 10g

No of moles =

= 0.25 moles

Now as solvent = 90g

Solvent (In Kg) = 90/100 = 0.09Kg

= 27 molal

ANSWER: (c) Page No: 268 (Sub Topic: 10.2.1)

69. How many grams of

be dissolved in 500cm³ of distilled water to get 0.1 M solution? (Molecular mass of Mohr’s slat is 392)

(a) 39.2g (b) 3.92g (c) 19.6g (d) 1.96g

HINT: M=

When M= 0.1 mol/dm³

Vol in L= 0.5dm³

So n =0.1 x 0.5 = 0.05 moles

Mass (in ) = 0.05 x 392

= 19.6g

ANSWER: (c) Page No: 269 (Sub Topic: 10.2.2)

70. If the force of attraction exists between the particles of dispersed phase and the dispersion medium terms the Sol is called:

(a) Lyophilic (b) Lyophobic

HINT: Because dispersion medium is moot

water.

ANSWER: (a) Page No: 289

71. Which condition must apply for the work done by an expanding gas to be

, where p is the pressure of the gas and

is its change in volume?

(a) No thermal energy must be supplied to the gas.

(b) The expansion must be at a constant rate.

(d) The temperature of the gas must be constant.

HINT: Volume explanative is associated with constant pressure i.e P∆V occurs at unstable pressure.

ANSWER: (c) Page No: 302

72. Consider the following reaction

When Kp at 500K is 0.85 . what will be the value of Kc at the same temperature

(a)

(b)

(c)

(d)

ANSWER: (d) Page No: 322

73. Calculate E⁰ cell from the half-cell reactions:

(a) 1.10v (b) 1.20v (c) 1.0v (d) 1.40v

ANSWER: (a) Page No: 339 (Sub Topic: 12.6.2)

74. Choose the wrong statement.

(a) Operating life for fuel cell is unlimited

(b) Electrode in fuel cell may be porons solid and may contain catalyst

(d) In fuel cell the cell products cannot be regenerated

HINT: It is reversible reaction

ANSWER: (d) Page No: 346 (Sub Topic: 12.3.4.3)

75. Which elements have the highest 2^nd ionization enger?

(a) Sr (b) Li

HINT: For

Sr = [Kr] 5S²

Li = [He] 2S1

Mg = [Ne] 2S2

Ca = [Ar] 3S2

Sr, Mg. Ca will have the 1^st ionization energy more but Li will have 2^nd ionization energy greater.

ANSWER: (b) Page No: 4 (Sub Topic: 13.1.1.3)

76. Which of the following is an ionic oxide?

(a)

(b)

(c)

(d)

HINT: Metallic oxides are ionic oxides, when they are in their lower oxidation state.

ANSWER: (b) Page No: 10 (Sub Topic: 13.1.3)

77. Steam of chlorine is passed over heated sulphur and form an orange colored foul smelling liquid having formula :

(a)

(b)

(c)

(d) Mixture of

and

ANSWER: (b) Page No: 13.1.2 (Sub Topic: 13.1.2)

78. Magnesium metal burn in air, the product form is

(a) Mgo (b) Mg₃N₂

HINT: Mg reacts with O₂ and N₂ of air, the product form Mgo and Mgb N₂

ANSWER: (d) Page No: 26 (Sub Topic: 13.3.3.3)

79. Which of the following is amphoteric I nature;

(a) MgO (b) VeO (c) K₂O (d) CaO

ANSWER: (b) Page No: 26 (Sub Topic: 13.3.3.1)

80. Which of the following electronic configuration is/are correct?

ii.

iii.

(a) I only (b) I & ii only

ANSWER: (b) Page No: 51 (Sub Topic: 14.1.4)

81. Complexes exists in various coordination numbers, choose the coordination number which is less common:

(a) 2 (b) 4 (c) 5 (d) 6

HINT: 4 Co-orddinated complex are for less common.

ANSWER: (b) Page No: 57 (Sub Topic: 14.2.3)

82. Choose the correct name of the complex

(a) Potassium hexa chloroplatinum (IV)

(b) Potassium hexa chloroplatinate (VI)

(d) Potassium chloro platinate

ANSWER: (b) Page No: 55 (Sub Topic: 14.2.2)

83. Most solution s containing ferric ions are usually yellow or yellowish brown, this is due to the formation of

(a)

(b)

(c)

(d)

ANSWER: (d) Page No: 74 (Sub Topic: 14.3.4.4)

84. Choose the mineral which is not of chromium

(a) Chrome irons stone (b) Chrome ochre

ANSWER: (d) Page No: 62 (Sub Topic: 14.3.2)

85. Compounds of vanadium exists in the following oxidation states 5+, 4+, 3+, 2+ The compounds in the 3+ and 2+ oxidation states behave as

(a) Good oxidizing agent

(b) Good reducing agent

ANSWER: (b) Page No: 60 (Sub Topic: 14.3.1.1)

86. The following dynamics equilibrium exist between

lons in solution

(a) Equilibrium shifts to the right

(b)

is decomposed to

(d) Equilibrium shifts to the left

ANSWER: (d) Page No: 63 (Sub Topic: 14.3.2.2)

87. The reaction between peroxodisulphate ions and iodide ions is given below:

(a)

(b)

(c)

(d)

HINT: The catalyst may be iron ll or iron III.

ANSWER: (b) Page No: 72,73 (Sub Topic: 14.3.4.3)

88. To differentiate between the white ppt of Agci and off white ppt of AgBr we use:

(a) Dil. Solution of NaOH

(b) Dil. Solution of Pb(NO₂)₂

(d) Dil. Solution of FeCl₃

HINT: Agcl is soluble in Din solution of NH₃ while AgBr is insoluble in dil. Solution of NH₃.

ANSWER: (c) Page No: 101

89. The compound that can not undergo addition reaction is:

(a) Cyclopropane (b) Benzene

HINT: Cyclopropane undergo ring opening to give open chain addition product.

ANSWER: (d) Page No: 122 (Sub Topic: 16.2.4)

90. Choose the correct statement about cycloalkanes:

(a) Cyclorpropane and cyclobutane are liquids at room temperature

(b) Cycloalkanes are insoluble in ethanol and ether but insoluble in water

(d) Both b and c are correct

HINT: Cycloalkane are insoluble in water but Dissolve in ethanol and ether.

ANSWER: (c) Page No: 120 (Sub Topic: 16.2.2)

91. The less energetic and more stable compound among the following is:

(a) Cyclobutane (b) Her I ene

ANSWER: (b) Page No: 122

92. Choose the least stable of the following butenes:

(a) 1 – Butene (b) CiS - 2 - Butene

HINT: Heat of hydrogenate as is greater than

all.

ANSWER: (a) Page No: 129 (Sub Topic: 16.5.2)

93. The carbon-carbon triple bond length in acetylene is

(a) 1.09A⁰(b) 1.119A⁰

ANSWER: (d) Page No: 146 (Sub Topic: 16.7.3)

94. Silver accylide in dry condition is highly explosive, it reacts with nitric acid to form:

(a) Sliver oxide, carbon dioxide and water

(b) Silver nitrate and ethyne

(d) Silver nitrate and carbon dioxide

ANSWER: (b) Page No: 145 (Sub Topic: 16.7.7)

95. Silver mirror is given by :

(a) Aldehyde (b) Ketone (c) Ethers

ANSWER: (a) Page No: 278 (Sub Topic: 19.6.4)

96. The carbonyl group of carboxylic acid do not exhibit the characteristics reaction of aldehyde and ketone due to :

(a) The C of carboxyl is less positive

(b) The C of carboxyl is more positive

(d) Does not depend on C atom

ANSWER: (a) Page No: 297

97. Carboxylic acid react with ammonia to form ammonium salts which on heating produces:

(a) Co₂ (b) Alkane (c) Ester (d) Acetamide

ANSWER: (d) Page No: 302 (Sub Topic: 20.7.1.4)

98.

The above relation is known as:

(a) Carboxylation (b) Decarbxylation

ANSWER: (b) Page No: 304 (Sub Topic: 20.7.4)

99. Food article spoiling involves oxidation reduction processes, to prevent this reaction we usually add preservative which act as:

(a) An oxidizing agent (b) A reducing agent

ANSWER: (c) Page No: 305 (Sub Topic: 20.7.4)

100. Solvent dyes are also known as:

(a) Spirit - soluble dyes

(b) Ether – soluble dyes

ANSWER: (a) Page No: 365

101. Light naphtha contain hexane & heptane is obtained in the boiling range of

(a) 60 - 100⁰ C (b) 80 - 100⁰ C

ANSWER: (a) Page No: 372

102. Nylon (6,6) six carbon atom in each monomer is the example of:

(a) Addition polymers

(b) Substitution polymers

(d) Condensation monomers

ANSWER: (c) Page No: 374

103. Adipic acid react with dimethylter thalate to form condensation polymer:

(a) Nylon-6,8 (b) Dacron

ANSWER: (a) Page No: 374

104.

is the formula of:

(a) PAN (b) Smog

ANSWER: (a) Page No: 398

105. What is the colour of oxidizing smog:

(a) Reddish brownish gray

(b) Bluish brownish gray

HINT: Photochemical smog is also called oxidizing smog.

ANSWER: (a) Page No: 397 (Sub Topic: 23.1.5)

106. Blue baby syndrome is caused due to:

(a) A phosphate in diets

(b) Chlorates in diets

(d) Deficiency of nitrate

ANSWER: (c) Page No: 409 (Sub Topic: 23.3.1.2)

107. A sample containing copper weighing 10.0g yield 2.0g of copper sulphide. What is the percent of copper (amu Cu = 63.54) in the sample.

(a)

(b)

(c)

(d)

ANSWER: (d) Page No: 422

108. Naila has two

(a) Sister in law (b) Sisters in law

ANSWER: (b)

109. The plural of LOUSE is:

(a) Lices (b) Lice (c) Louses (d) Lyces

ANSWER: (b)

110. Which of the following is not an adjective?

(a) Bravery (b) Intelligent

ANSWER: (a)

111. The feminine of MILKMAN is:

(a) Milkgirl (b) Milkmaid

ANSWER: (b)

112. Katherine made her children ________ chores on Sunday

(a) make some (b) take some

ANSWER: (c)

113. The synonym for the word “ANIMOSITY”IS:

(a) Powerful (b) Hatred

ANSWER: (b)

114. Hussain suffers from no ______ about his capabilities.

(a) Doubts (b) Hallucinations

ANSWER: (c)

115. I always _______ defy any authoritarianism.

(a) have and always will (b) have and will

(d) haven’t but will

ANSWER: (b)

116. The emperor ___________ his kingship and become a hermit.

(a) abolished (b) abated

ANSWER: (d)

117. Choose the correct sentence:

(a) Brazil is a populous country; the beache’s are warm sandy and spotless clean.

(b) Brazil is a populous country: the beaches are warm, sandy and spotlessly clean.

(d) Brazil is a populous; country the beaches are warm, sandy and spotlessly clean

ANSWER: (b)

118. The antonym for the word “ACQUIT” is:

(a) Retreat (b) Convict

ANSWER: (b)

119. She said “I passed the examination long ago “

(a) She said that she had passed the examination long ago

(b) She said that she had passed the examination long before.

(d) She asked that she had passed the examination long ago (b) (c) (d)

ANSWER: (b)

120. To have an old head on young shoulders’ means:

(a) To be wiser than one’s age

(b) To be young but appear old

(d) To be old but appear young

ANSWER: (a)

121. Do not disturb him for nothing.

(a) Let not he be disturbed for nothing

(b) He is not to be disturbed for nothing

(d) We should not disturb him for nothing

ANSWER: (a)

122. Cannon had ______ unique qualities _____ it was used widely in ancient times.

(a) such, so (b) that, since

ANSWER: (d)

123. Which of the following is not an adjective?

(a) Bravery (b) Intelligent

ANSWER: (a)

124. Katherine made her children ________ chores on Sunday

(a) make some (b) take some

125. The people who are hardworking always succeed. The underlined part of the sentence is

(a) Non defining clause (b) Phrase

ANSWER: (b)

126. Hussain suffer from no _________ about his capabilities

(a) Doubts (b) Hallucinations

ANSWER: (c)

127. People claim to have seen the suspect in several cities.

(a) The suspect was claimed to be seen by the people in several cities.

(b) The suspect is claimed to have been seen in several cities.

(d) The suspect is being claimed to be seen in several cities by the people.

ANSWER: (b)

128. The antonym for the word “ACQUIT” is:

(a) Retreat (b) Convict

ANSWER: (b)

129. She said “I passed the examination long ago “

(a) She said that she had passed the examination long ago

(b) She said that she had passed the examination long before.

(d) She asked that she had passed the examination long ago (b) (c) (d)

ANSWER: (b)

130.

(a) Zero (b)

(c)

(d)

ANSWER: (c)

131. A sequence is a function whose domain is

(a) Real numbers (b) Natural numbers

ANSWER: (b)

132.

(a)

(b)

(c)

(d)

ANSWER: (c)

133. Non-negative constraints in a Linear problem is given by

(a)

(b)

(c)

(d)

ANSWER: (b)

134. The objective function in a linear programming is usually denoted by

(a)

(b)

(c)

(d)

ANSWER: (b)

135. A cone is 9 cm high and has a vertical angle of 60⁰ then the diameter of its base is:

(a)

(b)

(c)

(d)

ANSWER: (b)

136. n a equilateral triangle the ration 1 : 2 : 3 holds for

(a) r₁ : r : R (b) r : R : r

HINT: Page No: 346 1^st year Book.

ANSWER: (b)

137. Graph of the function y = sin x over the interval (0.2p) intersects the x – axis at

(a) One point (b) Two points ((c) Three points (d) Infinite points

ANSWER: (a)

138. Which of the following expresses periodic property

(a)

(b)

(c)

(d)

HINT: periodic property.

F(x + k) = f(x)

ANSWER: (b)

139. If

then if

_____________

(a) 0 (b)

(c)

(d)5

ANSWER: (b)

140.

(a)

(b)

(c)

(d)

ANSWER: (d)

141. Equation of a line parallel to Negative y - axis at a distance b units to the left of y – axis is given by:

(a) x = b (b) x = -b (c) y + b = 0 (d) y = -b

ANSWER: (b)

142. The point p(x₁, y₁) lies above the line ax + by + c = 0. If

(a) ax₁ + by₁ + c = 0, b = 0

(b) ax₁ + by₁ + c > 0, b < 0

(d) ax₁ + by₁ + c < 0, b > 0

ANSWER: (c)

143. Equation of the tangent to the circle x² + y² =a² at point (x₁, y₁) is given by

(a)

(b)

(c)

(d)

ANSWER: (b)

144. In the equation 4px = y², if p > 0, then the parabola is symmetric with respect to

(a) Negative X-axis (b) Positive Y-axis

ANSWER: (c)

145. In the horizontal ellipse if foci are

, then its standard equation is give by

(a)

(b)

(c)

(d)

HINT: F₁ (h - c, k) and F₂ (h+c,k)

In transition case

ANSWER: (c)

146. In translation of axis

(a) Direction of axes changing

(b) Origin is changing

(d) Axes are changing through some angle

HINT: 2^nd year Book Page No. 308

ANSWER: (b)

147.

is a solution of the D.E

(a)

(b)

(c)

(d)

ANSWER: (c)

148. If slope of the family of curved

for the equation

then slope of the orthogonal Trajectory of the second family

(a)

(b)

(c)

(d)

ANSWER: (c)

149. For

the equation of orthogonal trajectory is

(a)

(b)

(c)

(d)

HINT:

ANSWER: (a)

150.

(a)

(b)

(c)

(d)

ANSWER: (a)

151. For the function

(a)

(b)

(c )

(d) 1

ANSWER: (a)

152. For a continuous function

on [a, b] the approximate root lies in the interval [c, b]if

(a)

has opposite signs at x = a x = b

(b)

has opposite signs at x = a x = c

(c)

has opposite signs at x = a x = b

(d)

has opposite signs at x = c x = b

ANSWER: (d)

153. Degree of the homogenous function ¦ (x,y)=

is:

(a) 1 (b) Zero (c)

(d) -

ANSWER: (c)

154. The asymptotes of the hyperbola

is given by

(a)

(b)

(c)

(d)

ANSWER: (a)

155.

(a) Linear differential equation

(b) Homogeneous differential equation

(d) Non Separable differential equation

ANSWER: (a)

156.

(a) (k+1) (b) K (c)

(d)

ANSWER: (d)

157. If A and B are disjoint events, then P (A U (B) =

(a) P (A) + P (B) (b) P(A)+P(B)–P(A)

(B)

ANSWER: (a)

158.

(a)

(b)

(c)

(d)

ANSWER: (a)

159. For two vector

and

it holds that

cos

then it hold

if and only if.

(a) When

and

are parallel

(b)

and

are perpendicular

and

are in the opposite direction (d) When

and

are parallel but opposite direction

ANSWER: (a)

160. The 3^rd term of the expression

(a)

(b)

ANSWER: (a)

161. The angular momentum of a wheel change from 2L to 5L in 3 seconds the magnitude of the torque, acting on it is:

(a)

(b)

(c)

(d) L

ANSWER: 0

162.

(a)

(b)

(c)

(d)

ANSWER: (d)

163. Let f(x) be a differentiable function on (a, b) if then if (x) is strictly decreasing on (a, b) if

(a)

(b)

(c)

(d)

ANSWER: (b)

164. If f(x)has a critical value at x = c i.e

and

exists on (a, b) containing C then

provided that

(a) Function has maximum value at x = c

(b) Function has a minimum value at x = c

(d) Function is undefined at x = c

ANSWER: (c)

165. Z = f(x,y) =

is homogeneous of degree

(a) 0 (b) 1 (c) 2 (d) 3

ANSWER: (b)

166. The equation of directrix for the parabola

(a)

(b)

(c)

(d)

ANSWER: (d)

167. The angle of the tangent line x – y = 0 to a curve y = f (x) is

(a)

(b)

(c)

(d)

ANSWER: (b)

168. The line 2x – y + c = 0 will touch the ellipse

if c = __________

(a)

(b)

(c)

(d)

ANSWER: (a)

169. Let

the Domain of the vector function

(a) All value of t

(b) Only non-negative value of t

(d) All values except t = 0

ANSWER: (d)

170. The order of steepness of lines

(a)

(b)

(c)

(d)

ANSWER: (c)

171. The point A (4.5) is above the line:

(a)

(b)

(c)

(d)

ANSWER: (c)

172. If

, then x = ________ and y = ________

(a) (10, 198) (b) (10, -198)

ANSWER: (b)

173.

for a complex number Z, if and only if it hold that (i) Z = -Z

(ii) Z =

(iii) Z = -

(a) Only (i) holds

(b) (i) and (ii) both holds

(d) Either (i) or (ii) holds

ANSWER: (d)

174. If

is a non singular matrix, then l can takes all the real values except for

(a) 0 (b)

(c)

(d)

ANSWER: (b)

175. If

lies in the 3^rd or 4^th quadrant, then sin

(a)

(b)

(c)

(d)

ANSWER: (d)

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