B.Pharmacy Entrance Exam Model Question TU KU PU
B.Pharmacy Entrance Exam Model Question TU KU PU. This year all the University B.Pharmacy exams will be taken by Medical Education Commission. This year, the syllabus of B.Pharmacy Entrance is new. There will be an examination of 200 marks, You need to bring at least 100 marks to pass. This year no college or university will take its own entrance exam of B. Pharmacy.
B.Pharmacy is taught in 24 colleges in Nepal
1. Weber/m is the unit of—
(a) Magnetic flux
(b) Magnetic field
(c) Magnetic moment
(d) Electric field
Ans. (b)
2. Which gas often creates more air-pollution?
(a) Nitrogen
(b) Carbon dioxide
(c) Carbon monoxide
(d) Oxygen
Ans. (c)
3. There are two bodies of masses 100 kg and 10,000 kg separated by a distance 1 m. At what distance from the smaller body, the intensity of the gravitational field will be zero?
(a) 1/9 m
(b) 1/10 m
(c) 1/11 m
(d) 10/11m
Ans. (c)
4. If the surface temperature of the sun were to drop by a factor of 2, the radiant energy impinging on Earth per second would be reduced by a factor of—
(a) 2
(b) 4
(c) 8
(d) 16
Ans. (d)
5. The density of ice is x g cm-3 and that of water is y g cm-3. When m gram of ice melts, then change in volume is—
(a) m(y—x)
(b) y—
(c) my(x-y)
(d) (m/x – m/y)
Ans. (d)
6. A man of mass ‘m’ slides down along a rope which is connected to the ceiling of an elevator with deceleration ‘a’ relative to the rope. If the elevator is going upwards with an acceleration ‘a’ relative to t ground, then tension in the rope is—
(a) mg
(b) m (g + 2a)
(c) m (g + a)
(d) m (g + 3a)
Ans. (a)
7. The work function of a metallic surface is 5.01 eV. The photoelectrons are emitted when light of wavelength 2000 A falls on it. The stopping potential is—
(a) 2.24 V
(b) 1.2 V
(c) 2.4 V
(d) 4.8 V
Ans. (b)
8. Insulin crystals are found in—
(a) Wheat root
(b) Mango root
(c) Dahlia root
(d) Sugarcane root
Ans. (c)
9. The best example of poly-embryonic is—
(a) Cocas
(b) Citrus
(c) Capsicum
(d) Cycas
Ans. (d)
10. Which one of the following is an insectivorous plant?
(a) Castor
(b) Hydrilla
(c) Ranunculus
(d) Drosera
Ans. (d)
11. Genetic recombination occurs through—
(a) Mitosis and-fertilization
(b) Mitosis and meiosis
(c) Meiosis division
(d) None of these
Ans. (c)
12. What is Rh-factor?
(a) A type of sugar
(b) ADNA
(c) An enzyme related
(d) Blood group
Ans. (d)
13. Virus is—
(a) Accellular
(b) Poly-cellular
(c) Mono-cellular
(d) Bi-cellular
Ans. (a)
14. Blood is made of—
(a) Plasma
(b) Lymphocytes
(c) Hemoglobin
(d) None of these
Ans. (a)
15. The dental formula of Rabbit is—
(a) 2, 0, 3, 3
1, 0, 2, 3
(b) 1, 0, 2, 3
2, 2, 0, 3
(c) 1, 0, 3, 3
2, 2, 0, 3
(d) 2. 1. 3. 2
2, 1, 2, 3
Ans. (a)
16. Ascaris normally inhabits the lumen of—
(a) Stomach
(b) Small intestine
(c) Large intestine
(d) Appendix
Ans. (b)
17. Which era could be called the age of mammals?
(a) Mesozoic
(b) Cenozoic
(c) Paleozoic
(d) Cretaceous
Ans. (b)
18. The suckers in leech are—
(a) One pair
(b) Two pair
(c) Three pair
(d) Only one
Ans. (a)
19. Most sponges are—
(a) Bilaterally symmetrical
(b) Vertically symmetrical
(c) Radical symmetrical
(d) Asymmetrical symmetrical
Ans. (d)
20. In Ulothrix, 4 ciliea are present in—
(a) Macro zoospore
(b) Gametes
(c) Both micro zoospore and gamete
(d) None of these
Ans. (a)
21. Chemical behaviour of an element is related to-
(a) Atomic number
(b) Atomic size
(c) Atomic volume
(d) Atomic structure
Ans. (d)
22………. waves can not be transmitted through vacuum.
(a) Light
(b) Sound
(c). Heat
(d) Electromagnetism
Ans. (c)
23. The geometry of NaCl is—
(a) Triangular
(b) Octahedral
(c) Tetrahedral
(d) Diagonal
Ans. (c)
24. The bond angle in the molecules H2O, NH3, CH4, CO2 are in order—
(a) H2O>NH3>CH4>CO2
(b) H2O <co2
(c) H2O < NH3 <ch4
(d) CH4 <=”” co2=”” <nh3
Ans. (c)
25. Borax has the formula—
(a) Na2B4O7
(b) Na2B4O7.5H2O
(c) Na2B4O7.7H2O
(d) Na2B4O7.10H2O
Ans. (d)
26. The fastest running animal is:
(a) Dog
(b) Tiger
(c) Lion
(d) Leopard
Ans. (d)
27. An injury caused to the rear portion of the Cerebrum would most likely affect-
(a) The sense of hearing
(b) The sense of sight
(c) Muscular co-ordination
(d) The hand jerk
Ans. (b)
28. Introduction of dead or weak pathogen in the body results in-
(a) Natural immunity
(b) Passive acquired immunity
(c) Active acquired immunity
(d) Multiplication of pathogens
Ans. (c)
29. Clotting of blood in blood-vessels is known as-
(a) Haemolysis
(b) Haemopoisis
(c) Thrombosis
(d) Agglutination
Ans. (c)
30. What are the main chemical elements of the bone?
(a) Carbon, phosphorus and hydrogen
(b) Calcium, phosphorus and oxygen
(c) Nitrogen, phosphorus and Potassium
(d) Oxygen, hydrogen and Nitrogen
Ans. (b)
31. Which of the following is present in plant embryo?
(a) Cotyledons
(b) Cotyledons and plumule
(c) Radicle, plumule and cotyledons
(d) Cotyledons and endosperm
Ans. (c)
32. Saffron is derived from-
(a) Roots of crocus
(b) Petals of crocus
(c) Leaves of crocus
(d) Styles and stigmas of crocus
Ans. (d)
33. Which of the following is a chemical property?
(a) Attraction to a magnet
(b) Conduction of an electric current
(c) Soluble in a water solution 4
(d) Coats itself with an oxide in air
Ans. (d)
34. The unit of force in the S.I. system is-
(a) Hertz
(b) Newton
(c) Dyne
(d) Joule
Ans. (b)
35. Decibel is a unit of-
(a) Pitch
(b) Sound energy
(c) Loudness
(d) Length
Ans. (c)
36. What is the term which bears the same relationship to light as pitch bears to sound?
(a) Wavelength
(b) Shade
(c) Amptitude
(d) Colour
Ans. (d)
37. Grafting in monocot plant is not possible because they-
(a) Lack cambium
(b) Lack secondary growth
(c) Have adventitious roots
(d) Have scattered vascular bundles
Ans. (a)
38. The Hydroponics refers to-
(a) Marine water plantation
(b) Growing plants in loam soil
(c) Growing plants in soil-less medium supplimented with essential elements
(d) Culture of plants
Ans. (c)
39. Which of the following is a non-essential Element for the growth of plants?
(a) Calcium
(b) Sodium
(c) Iron
(d) Potassium
Ans. (b)
40. Two objects which lose the same weight in water have the same-
(a) Density
(b) Specific gravity
(c) Weight in water
(d) Volume
Ans. (d)
41. An instrument used to compare the intensities of two sources of light is called-
(a) Actinometer
(b) Densitometer
(c) Eudiometer
(d) Photometer
Ans. (d)
42. Plaster of Paris is made from-
(a) Gypsum
(b) Zinc
(c) Slaked lime
(d) Limestone
Ans. (a)
43. Internal combustion engine was invented by-
(a) Watson watt
(b) Daimler
(c) Davy
(d) Diesel
Ans. (b)
44. Jet engines are-
(a) External combustion engines
(b) Turbine engines
(c) Reaction engines
(d) Rotary engines
Ans. (b)
45. Who was the first scientist to produce Artificial transmutation of an element?
(a) Ernest Solvay
(b) Sir Ernest Rutherford
(c) John Dalton
(d) Thomas Graham
Ans. (b)
46. Sunlight produces-
(a) Vitamin A
(b) Vitamin B
(c) Vitamin C
(d) Vitamin D
Ans. (d)
47. Which of the following is not an essential function of the skin in the human body?
(a) Protects the internal organs of the body
(b) Acts as a sensory organ
(c) Regulates the temperature of the body
(d) Gives shape to the body
Answer. (d)
48. In digestion bile provides-
(a) Enzymes
(b) Hormones
(c) Alkaline medium in the duodenum
(d) Iron
Ans. (c)
49. When uranium ( 92U238 ) decays to lead (82 Pb206), number of alpha-particles and beta-particles emitted are:
(a) 6 and 6 respectively
(b) 8 and 8 respectively
(c) 6 and 8 respectively
(d) 8 and 6 respectively
Ans. (d)
50. When an electron jumps from a level n = 4 to n = 1, the momentum of recoiled hydrogen atom will be:
(a) 6.8 x 10-27 kg m/s
(b) 12.75 x 10-19 kg m/s
(c) 13.6 x 10-19 kg m/s
(d) zero
Ans. (a)
51. Which level of doubly ionised (Li3+ ) ion has the same energy as the ground state energy of the hydrogen atom?
(a) n=2
(b) n=3
(c) n=4
(d) n=9
Ans. (a)
52. A body of mass m thrown horizontally with velocity v, from the top of tower of height h touches the level ground at a distance of 250 m from the foot of the tower. A body of mass 2m thrown horizontal with a velocity v/2 from the top of the tower of height 4h will touch the level ground at a distance from the foot of the tower.
(a) 250 m
(b) 50 m
(c) 125 m
(d) 50?2m
Ans. (a)
53. A body of mass 6 kg moves in a straight line according to the equation x = — 75t where x denotes the distance in metres and t the time in seconds. The force on the body at t = 4 s is:
(a) 64 N
(b) 72 N
(c) 144 N
(d) 36 N
Ans. (c)
54. The source of magnetic field is:
(1) Isolated magnetic pole
(2) Current loop
(3) Static electric charge
(4) Micrometer
Ans. (a)
55. The sides of a rectangle are 6.01 m and 12 m. Taking the significant figures into account, the area of the rectangle is
(a) 72.12m2
(b) 7.2m2
(c) 72.1m2
(d) 72m2
Ans. (d)
56. A ball moving with a velocity of 5 m/s impinges on a fixed plane at an angle of 45°, its direction after impact is equally inclined to the line of impact. If coefficient of restitution is 0.5, the velocity of ball after impact will be:
(a) 0.5 m/s
(b) 1.5 m/s
(c) 2.5 m/s
(d) 3.5 m/s
Ans. (c)
57. Two protons more parallel to each other with equal speeds 9 x 105 m/s. The ratio of magnetic force and electrical force between them is
(a) 9 x 10-9
(b) 9 x 10-6
(c) 9 x 10-3
(d) 1/9 x 106
Ans. (b)
58. Two astronauts have deserted their spaceship in a region of space far from the gravitational attraction of any other body. Each has a mass of 100 kg and they are 100 m apart. They are initially at rest relative to one another. How long will it be before the gravitational attraction brings them 1 cm closer together?
(a) 2.52 days
(b) 1.41 days
(c) 0.70 days
(d) 1.41 s
Ans. (b)
59. A particle under the action of an SHM has a period 3s and under the effect of another it has a period 4 s. What will be its period under the combined action of both he two simple harmonic motions in the same direction?
(a) 7 s
(b) 5 s
(c) 2.4 s
(d) 0.4 s
Ans. (c)
60. Half a mole of helium at 27°C and at a pressure of 2 atm is mixed with 1.5 moles of N2 at 77°C and at a pressure of 5 atm, so that the volume of the mixture is equal to the sum of their initial volumes. If the temperature of the mixture is 69°C, its pressure in atmospheres is:
(a) 3.5
(b) 3.8
(c) 2.95
(d) 4.25
Ans. (b)
61. An electron (e/m = 1.76 x 1011 C / kg) enters a region, where there is a uniform magnetic field of induction 1.78 x 10-3 T with a velocity 4 x 106 m/s in a direction 60° with the field. The pitch (in cm) of its helical path in the region is:
(a) 3.2 cm
(b) 4 cm
(c) 7.4 cm
(d) 6.0 cm
Ans. (b)
62. The coercivity of a bar magnet is 120 A/m. It is to be demagnetised by placing it inside a solenoid of length 120 cm and number of turns 72. The current flowing through the solenoid is:
(a) 0.5 A
(b) 1 A
(c) 2 A
(d) 4 A
Ans. (c)
63. Two solid spheres of radii R1 and R2 are heated to same temperature and allowed to cool under similar conditions. Their rates of cooling are in the ratio of:
(a) R1/R2
(b) R2/R1
(c) R22/R12
(d) R12/ R22
Ans. (a)
64. Bells are made of metal and not of wood because:
(a) the thermal conductivity of metal is greater than that of wood
(b) the density of the metal is greater than that of wood
(c) the sound is not conducted by metals but is radiated
(d) wood dampers vibrations while metals are elastic
Ans. (d)
65. Two tuning forks of frequencies 256 and 258 vib/s are sounded together. Then the time interval between two consecutive maxima heard by an observer is:
(a) 2 s
(b) 0.5 s
(c) 250 s
(d) 252 s
Ans. (b)
66. An achromatic convergent lens of focal-length + 20 cm is made of two lenses (in contact) of materials having dispersive powers in the ratio of 1 : 2 and having focal length f1 and f2. Which of the following is true?
(a) f1 = 10 cm, f2 = -20 cm
(b) f1 = 20 cm, f2 = 10 cm
(c) f1 = 10 cm, f2 = -20 cm
(d) f1 = -20cm, f2 = -l0 cm
Ans. (a)
67. For observing cricket match a binocular is preferred to a terrestrial telescope because:
(a) the binocular gives the proper three dimensional views
(b) the binocular has a shorter wavelength
(c) the telescope does not give erect image
(d) telescope has chromatic aberrations
Ans. (a)
68. The speed of rotation of a fan is reduced by putting a rheostat in series with the fan. Let us say the supply is DC for converience. We consume:
(a) the same power than at full speed
(b) more power than at full speed
(c) less power than at full speed but less efficiency
(d) less power than at full speed but more efficiency
Ans. (c)
69. Two insulated charged spheres of radii 20 cm and 25 cm respectively and having an equal charge Q are connected by a copper wire and then they are separated. The correct inference is:
(a) both the spheres will have the same charge Q
(b) charge on the 20 cm sphere will be greater than that of the 25 cm sphere
(c) charge on the 25 cm sphere will be greater than that on the 20 cm sphere
(d) charge on each of the sphere will be 2?
Ans. (c)
70. In the measurement of resistance by a metre bridge, the current is necessarily reversed through the bridge wire to eliminate:
(a) end error
(b) the index error
(c) error due to 4iermoelectric effects
(d) random error
Ans. (a)
71. For light of wavelength 5000 Å photon energy is nearly 2.5 eV. For X-rays of wavelength 1 Å, the photon energy will be close to
(a) (2.5 ÷ 5000) eV
(b) (2.5 ÷ (5000)2) eV
(c) (2.5 x 5000) eV
(d) (2.5 x (5000)2) eV
Ans. (c)
72. Fast neutrons can easily be slowed down by:
(a) the use of lead shielding
(b) passing them through heavy water
(c) elastic collision with heavy nuclei
(d) applying strong magnetic field
Ans. (b)
73. Uranium ores contain one radium 226 atom for energy 2.8 x 106 uranium -238 atom. The half-life of 92U238 if the half-life of 88Ra226 is 1600 year is (88Ra226 is a decay product of 92U238 ):
(a) 1.75 x103 year
(b) 1600 x 238/92 year
(c) 4.5 x 109 year
(d 1600 x 92/238 year
Ans. (c)
74. X-rays and y-rays of the same energies may be distinguished by:
(a) their velocity
(b) their ionising power
(c) their intensity
(d) method of production
Ans. (d)
75. Light from a hydrogen discharge tube is made incident on the cathode of a photoelectric cell. The work function of the cathode surface is 3.1 eV. In order to reduce the photoelectric current to zero value, the minimum potential applied to anode with respect to cathode should be:
(a) -3.1V
(b) +10.5V
(c) -16.7 V
(d) -10.5 V
Ans. (d)
76. A region is specified by potential function V = 5x + 4y – 6z, then potential gradient is:
(a) 5i + 4j – 6k
(b) 5i + 4j + 6k
(c) – 5i – 4j + 6k
(d) – 5i + 4j – 6k
Ans. (a)
77. In order to find time, an astronaut orbiting in earth’s satellite should use:
(a) pendulum clock
(b) a watch having a main string to keep it going
(c) either a pendulum clock or a spring watch
(d) neither a pendulum clock nor a spring watch
Ans. (b)
78. Two gases X and Y having the same temperature T, the same pressure P and the same volume V are mixed. If the mixture has the volume V and temperature T, then the pressure of the mixture must be
(a) P/2
(b) P
(c) 2P
(d) 4P
Ans. (c)
79. A person can see objects only at distance greater than 40 cm. He is advised to use lens of power:
(a) – 2.SD
(b) + 2.5D
(c) – 6.25D
(d) + 1.5D
Ans. (d)
80. The dielectric constant k of an insulator cannot be:
(a) 3
(b) 6
(c) 8
(d) infinite
Ans. (d)
81. Two gases X and Y having the same temperature T, the same pressure P and the same volume V are mixed. If the mixture has the volume V and temperature T, then the pressure of the mixture must be
(a) P/2
(b) P
(c) 2P
(d) 4P
Ans. (c)
82. Three bulbs rated 25 W, 40 W, 60 W are designed to work on 220 V AC mains.. Which of these bulbs will burn most brightly, if they are connected in series across 220 V mains?
(a) 25W
(b) 40W
(c) 60W
(d) All will burn equally bristly
Ans. (a)
83. Lines of force due to earth’s horizontal magnetic field are:
(a) parallel and straight
(b) concentric circles
(c) elliptical
(d) curved lines
Ans. (a)
84. In which one of the following regions of the electromagnetic spectrum, will the vibration motion of molecules give rise to absorption?
(a) Ultraviolet
(b) Microwaves
(c) Infrared
(d) Radiowaves
Ans. (d)
85. If the forward voltage in p- n junction is increased, the length of depletion layer will:
(a) increase
(b) decrease
(c) remain unchanged
(d) disappear
Ans. (b)
86. In an extrinsic semiconductor, the ratio of impurity atoms to pure atoms is:
(a) 1 : 108
(b) 108 : 1
(c) 1 : 106
(d) 106 : 1
Ans. (c)
87. If the radius of earth of R then the 1height h at which the value of g becomes one fourth, will be:
(a) R/8
(b) 3R/8
(c) 3R/4
(d) R/2
Ans. (b)
88. Which of the following substances is a polymer of isoprene?
(a) Bakelite
(b) Natural rubber
(c) Thiokol
(d) Melamine
Ans. (b)
89. Soil is depleted of nitrogen because of repeated growing of a cereal like wheat. In order to enrich the soil again, one should grow
(a) soyabean or alfalfa
(b) alfalfa or maize
(c) soyabean or eucalyptus
(d) alfalfa or eucalyptus
Ans. (b)
90. Which of the following natural directions of energy transformation are correct?
1. Heat energy to mechanical energy
2. Mechanical energy to heat energy
3. Heat energy to electrical energy
4. Electrical energy to heat energy
(a) l and 2
(b) l and 3
(c) l and 4
(d) 2 and 4
Ans. (d)
91. The life of photo prints is longer in case of
(a) coloured prints with fixer
(b) coloured prints without fixer
(c) black and white prints
(d) computer developed black and white prints
Ans. (c)
92. Peat is the result of
(a) partial decomposition of plant material
(b) plant material being submerged in plant containing lime
(c) water being squeezed out of plants
(d) water seeping into the plant material
Ans. (a)
93. Uranium is a naturally occurring radioactive element which emits alpha particles and is converted into
(a) Radium
(b) Thorium
(c) Actinium
(d) Plutonium
Ans. (b)
94. In the visible spectrum, the colour having the shortest wavelength is
(a) Red
(b) Yellow
(e) Blue
(c) Violet
Ans. (a)
95. Which of the following vitamins is considered to be a hormone?
(a) A
(b) B
(c) C
(d) D
Ans. (b)
96. Who first established the fact that the earth revolves round the sun?
(a) Kepler
(b) Copernicus
(c) Newton
(d) Galileo
Ans. (b)
97. Which bf the following gases is used for refrigeration?
(a) Chlorine
(b) Sulphur dioxide
(c) Phosphine
(d) Ammonia
Ans. (d)
98. Which of the following have the ability to fix atmospheric nitrogen?
1. Azolla
2. E. Coli
3. Cyanobacteria
4. Azospirillum
(a) l, 2 and 4
(b) 2 and 3
(c) l, 3 and 4
(4) l, 2, 3 and 4
Ans. (c)
99. The resinous shellac is obtained from
(a) agricultural waste
(b) bark of a tree
(c) processing of crude oil
(d) distillation of wood
Ans. (b)
100. The deficiency of which one of the following gives rise to a disease characterized by oedema, subcutaneous hemorrhages, anaemia and pathological changes in the teeth and gums?
(a) Retinol
(b) Vitamin B Complex
(c) Ascorbic acid
(d) Gyanocobalamin
Ans. (c)
101. Which of the following is used as good biofertiliser in rice fields?
(a) Cow dung
(b) Azolla
(c) A green legume
(d) Moss
Ans. (b)
102. If algae suddenly disappear from the water bodies, then all the other aquatic organisms (like fish, prawns and protozoans) will die. This is because of
(a) lack of food
(b) lack of shelter
(c) lack of food and oxygen
(d) dead algal mass increasing the oxygen demand
Ans. (c)
103. Consider the following effects of genetic engineering:
1. Disease resistance
2. Growth promotion
3. Closing
4. Longevity
Of the above, those that have been tried out with a certain amount of success include
(a) 1, 2 and 3
(b) l, 2 and 4
(c) 1, 3 and 4
(d) 2, 3 and 4
Ans. (a)
104. Which of the following types of woods is specially used as railway sleepers?
(a) Mahogany
(b) Ivory Wood
(c) Green heart wood
(d) Jarrah and barri
Ans. (d)
105. The number of naturally occurring amino acids found in proteins is
(a) 12
(b) 15
(c) 20
(d) 25
Ans. (c)
106. Biological pest control is carried out by
(a) parrots and kites
(b) dragonfly and wasp
(c) scorpions and spiders
(c) bees and locust
Ans. (c)
107. Alcoholic beverages contain
(a) methanol
(b) methyl alcohol
(c) butyl alcohol
(d) ethyl alcohol
Ans. (c)
108. Which of the following approaches comes under the category of ‘biotechnology’?
(a) Use of modern technology to investigate biological disorders.
(b) Use of industrial technology to increase the biosphere.
(e) Use of living organisms, or substances obtained from them in industrial processes.
(d) Modernizing the commercial industries to produce products for use in biological research.
Ans. (b)
109. Which of the following components of solar radiation cause sunburn?
(a) Infra – red
(b) Ultraviolet
(c) Visible radiation
(d) Both (a) & (b)
Ans. (b)
110. Turpentine oil is obtained from
(a) eucalyptus tree
(b) animal fat
(c) mineral oil
(d) pine tree
Ans. (d)
111. ‘Sake’ is a favorite wine of Japanese. It is made from
(a) vinegar
(b) grape juice
(c) rice grains
(d) palm sap
Ans. (c)
112. KMnO4 can be used as
(a) insecticide
(b) fertilizer
(c) pesticide
(d) disinfectant
Ans. (d)
113. Which of the following fuels causes minimum environmental pollution?
(a) Kerosene
(b) Hydrogen
(c) Coal
(d) Diesel
Ans. (b)
114. Which of the following will you use to remove rust stains on cloth?
(a) Lime
(b) Kerosene Oil
(c) Alcohol
(d) Oxalic acid solution
Ans. (d)
115. Which of the following is correctly matched?
1. LYMAN series – Visible region
2. BALMER series – Ultraviolet region
3. PASCHEN series – Infrared region
(a) 1 and 2
(b) 2 and 3
(c) 3 only
(d) 1, 2 and 3 only
Ans. (c)
116. Which of the following is the name of the smallest part of the matter discovered recently by the scientists?
(a) Proton
(b) Neutron
(c) Positron
(d) Quark
Ans. (d)
117. Which mirror is used as rear view mirror in vehicles?
(a) Inverted
(b) Plane
(c) Concave
(d) Convex
Ans. (d)
118. Optical fiber works on the principle of
(a) refraction
(b) scattering
(c) interference
(d) total internal reflection
Ans. (d)
119. Which of the following acids is most important in building tissue proteins?
(a) Lactic
(b) Amino
(c) Linoleic
(d) Saturated fatty
(e) Unsaturated fatty
Ans. (b)
120. In a car, radiator and fan are used to cool the engine. The heat transfer modes involved are
(a) conduction and convection
(b) convection and radiation
(c) conduction and radiation
(d) conduction, convection and radiation
Ans. (b)
121. If the length of the filament in an electric bulb is reduced, the latter will glow with intensity that is
(a) low
(b) medium
(c) more
(d) normal as in original
Ans. (c)
122. Which of the following radiations will be trapped up more in our atmosphere if CO2 percentage is increased?
(a) Red Light
(b) Green Light
(c) Infra -red light
(d) Ultra -violet light
Ans. (c)
123. The difference between a nuclear reactor and an atomic bomb is that
(a) no chain reaction takes place in nuclear reactor while in the atomic bomb there is a chain reaction.
(b) no chain reaction takes place in atomic bomb while it takes place in nuclear reactor.
(c) the chain reaction in nuclear reactor is con trolled.
(d) the chain reaction in nuclear reactor is not controlled.
Ans. (c)
124. Both sodium atoms and sodium ions have the same number of
(a) electrons
(b) electric charge
(c) protons
(d) electron shells
Ans. (c)
125. It adjusts the soil pH and increases the crop yield.
(a) 1 and 2
(b) 2 and 3
(c) 1 and 3
(d) 1 and 4
Ans. (d)
126. Which of the following solvents is used for dry cleaning of clothes?
(a) Chloroform
(b) Acetone
(c) Alcohol
(d) Carbon tetrachloride
Ans. (c)
127. Which of the following is a mixed fertilizer?
(a) Urea
(b) Ammonium sulphate
(c) CAM
(d) NPK
Ans. (d)
128. Which of the following groups contains only natural fuels?
(a) Petrol, diesel, natural gas
(b) Petroleum, wood, coke
(c) Coal, charcoal, wood
(d) Coal, wood, petroleum
Ans. (d)
129. Manufacture of hydrogen bomb involves the principle of
(a) a controlled chain reaction involving nuclear fission,
(b) an uncontrolled chain reaction involving nuclear fission.
(c) a controlled chain reaction involving nuclear fusion.
(d) an uncontrolled chain reaction involving nuclear fusion.
Ans. (d)
130. Which of the following groups of organisms possesses exoskeleton?
(a) Fishes
(b) Coelenterates
(c) Arthropoda
(d) Molluscs
Ans. (c)
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