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PRACTICE FREE IMSU POST UTME PAST QUESTIONS AND ANSWER GET FULL IMSU PAST QUESTIONS AND ANSWERS, CALL 08166273164 IMO STATE UNIVERSITY OWERRI P.M.B 2000 OWERRI, lMO STATE, NIGERIA POST-UME SCREENING 201112012 INSTRUCTION: ATTEMPT ALL QUESTIONS TIME: 40 MINUTES ENGLISH Choose the correct option to fill the blank spaces 1. The guest — breakfast by the time the bus arrives a. shall have finished b. have finished c. had finished d. are finishing 2. You can go on____ what you are saying a. will be understanding b. an understanding c. understanding d. waste understanding 3. When he was knocked on the head, he fall ____to the ground a. fainted b. unconscious c. collapsed d. noisily 4. It so _____ hard that all the cares have stopped moving a. will rain b. rained C. rain d. rains 5. The principal will be going away on leave, in his absence the vice-principal will ____ the school a. overlook b. take over c. look after d. care for Choose the word that is nearly composite in meaning to the underlined word. 6. The able-bodies should take care of the ____ a. feeble b. weak-minded c. suffering d. softhearted 7. The chairman ordered him either to withdrew or to his allegations a. affirm b. drew C. expressed. D. complete 8. He shows plenty of goodwill to his neighbours, but they bear nothing except towards him a. bad luck b. malice c. anger d. unhappiness 9. I supported you said but I____ the way you said it a. argued about b. objected to c. interfered with d. investigated 10. Though many of us were poor quite a few were a. arrogant b. Prodigal c. affluent d. Luxurious MATHEMATICS 1. A fair coin is tossed ten times. What is the probability of getting two heads? A. 513/1024, B. 615/1024 C. 968/1024 D. 1011/1024 2. A man bought 220 mangoes at N5x. he sold each for 3x kobo and made a gain of N8. Find the value of x a.2 b.5 c.10 d.6 3. Calculate the sum of infinity of 1+1/3±1/9+1/27 a.0.33 b.0.67 c. 1.5 d.25 4. If” P + “C2, then n can be a. 1 b.2 c. 3/2 d. 3 5. Express tan 221/2° in the sum form a. + v2-2 b. l-v2 c. v2-l d. +v2+l 6. If sin (x-a)Cos)x+a), then tan is a. 0.8 b.0.75 c. 1.0 6.28 7. Simplify 11013 a. 101003 b.11002 c.1110 d.10112 8. A binary operation x is defined on R, the set read numbers by xy =VXY =VXY, for all X, YER. If X*(2*8)=6,find a. 2 b.4 c.9 d10 9. Find the mean deviation of 5,8,7 and 2, a.0 b.2 c.5 d.10 10. The volume of two similar solid cubes are 729cm3 and 512cm2 find the ratio of their lengthsa.4:3 b.9:7 d.9:8 PHYSICS 1. Which of the following is not true about semi conductor? A. moving holes are equivalent to moving positive charges b. there are two kind of charges carrier; free electron and hole c. the escape of a valence electron from an atom produces electron holes pair of charge carrier d. Increase in temperature increases its electrical resistance (in a semiconductor, the electrical resistance decrease in temperature) 2. The minimum energy necessary to remove an electron from given atom at infinity is called A. excitation b. ground state energy c. ion energy d. binding energy (The minimum amount of energy required an electron from an atom is called ionizing energy) 3. Find the de Broglie wavelength of a 0.01kg pallet having a velocity of l0m/s -663 xl034js. A. 6.63 x 1031m b. 6.63 x10-32m c. 6.63 xl033m SOL: De Broglie formula for wavelength w=1h/33 2s VM where V is electron volt of hpe. e =hip, (where P =mass x velocity)e =6.63×10-34 /0/0; x 10=6.63 xl0-35 4. A set-up transformer is designed to operate from a 25v supply. If the transformer is 80% efficient, determine the current in the primary coil when the output terminals are not connected to 240v 100w lamp. A5.0A b 4.0A c. 2.5A d. 2.0A SOL: Efficiency = Output/input x l 00/1 input; Power I per i.e. 80=100/251 p, x100/1, 1p xl 00/l, lp= 100 x 100/25 x80=5A 5. AN object of mass 0.2kg and density 600kg4 is suspended with a string so that it is immersed in paraffin of density 900kgm3. find the tension in the string a. 0.2N b. 2.0N c. 1 .0N d.0 INSOL: D=MN. When D=660, 6000.2N, V=0.2/600=3.3 x 1034. Thus 1/10 of V=l /10 x 3.33 x10-34 = 3.33 x10-34, =3.33×10-34, there when D=900kgm-3x3.33×10-5, m=0.03, F, =l0x0.03, F=0.3. 6. A rocket burns fuel at the rate of 20kgs1 and reject it with a velocity of 5.0x103ns1. calculate the thrust exerted b gas on the rocket. A. 1.0 x 105ms-1 b. 2.0xl05=ms-1. c. 3.0xl05ms-1 D 5.0×105ms-1 SOL: The thrust exerted by the gas on the rocket is the mass x velocity. i.e. 5×105 x 20kg-1=1.0×105ms-1 7. Which of the following pairs consist fundamental quantities only? A. velocity and ‘gravitational potential b. acceleration and field strength c. momentum and work done d. moment and mass. ‘(All are derived unit except mass; N.B Mass, length, time, temperature, velocity, amount of substance etc. are all fundamental quantities). 8. One of the limitation of Thomson’s model of the atom in that it does not explain. A Small angle b. stability of the atom c . ionization process: d. the variation of the effective atomic radius (Thomson’s concluded in what is called plum pudding mode) of the atom which deal with larger angle carrying a current of IGA and 2.5mm length is placed in filed of flux density 0.14T. what is the force of the wire if it is place at 60° to field? A. 30.3N b. 20.5N c.15.3N d.10.5M SOL:F=BILSIN. Therefore, F=0.14×2.5xlOsin 60, F3.30t 10. In the transformer, the magnetism of the core is repeatedly reverse by the magnetic BIOLOGY 1. In bird, the following feathers possess after shaft a. Quill and filoplumes b. Down and filoplumes c. Covert and down d. Quill and covert 2. The nutritive layer of the eye in mammals is a. refracting media b. conjunctiva c. corner, d.Sciara 3. Ultra fit ratio in the Kidney takes place in the a. Bowman’s Capsule b. Pelvis C. Loop of Henle d. Proximal Convulatrfd Tubule 4. Which of the following bones is not a component of the fore limb? A. Olearanon b. Ulna c. Tilia d. Humerus 5. The condition in which the anthers mature before the stigma is called a. protandry B. Epigyny c. Hypogyny d. protogyny 6. In most true ferns, sporangia are grouped into a. indusium b. fronds c. son d. Prothalls 7. The ration of carriers to sucklers in the F2 generation derived from a parental cross at two carriers of heamoglobins S gene is a. 3:1 1:3 c. 2:1 dl :2 8. In which part of a leguminous plant can bacteria like Azotobacteria be found? A. Spongy mesophy ll b. Root nodes c. stern internodes d. Stem nodes 9. In a dicotyledonous stem, companion cells are round closed to the a. Endoderma! cells b. Silvertubes c. Xylem vessels d. Pericylic fibres 10. The position occupied by an organism in a food chain is referred to as a. Trophic level b. Niche Level d. feed level . CHEMISTRY 1. Natural water include the owing except a. Rain water b. Spring water c. pure water d. Lake water SQL: Of all the options, only water is not a source of nature water. Source of natural water. Source of natural include rain or precipitation, spring,- stream, well lake, pond, sea etc. pure water are used in the option means treated water, which is not actually pure, following the criteria for purity. 2. Which of the following methods cannot be used to remove permanent hardness from water? A. Adding of washing soda b. addition of cause by the presence of Ca and MFC ions in water either as chloride, carbonate hydrogen, carbonate, or suiphates. These ions can be substitute using soluble metals like sodium containing compound such as washing soda (Na2CO3. 10H20), caustic soda (NaoH)3 and permute of zeolite (NaNSOI3), NB: alum is double salt which conforms to the general formula MM (so4)3. 12H20where M= can beAl2+. Cr3+or Fe3+ 3. If the solubility or sodium tetraoxosulphate (IV) at 300c is 18g per 100g. How much is this gram per kilogram? A. 18g per 100g b. 180g per 100g c. 180g per 1000g. d. l80gper mg SOL: 16g per l00g=18g per 100/1000 (converting from g to k)=18g per 0.1k, 180g per lkg4. 4. The following are example of colloid except a. Milk b. starch in water c. aerosol d. ammonium chloride 5. The pH of the solution M, H,O, and P are 4,6,8 and 10 respectively. Therefore a. non of the solution is acidic b. the H of the 0 made neutral by adding water c. the most acidic solution is P. d. M is the most acidic solution. (According to S, resen’s equation, PH-logl0 1/H. Therefore a solution with a lower H and a hg her H concentration is more acidic than that of a higher P and a lower ft concentration. 6. Sodium chloride may be obtain from brine by a. detection b. distillation c. evaporation d. sublimation. (Brine is concentrated solution of table or common salt Nacl) and water (H20). While Nacl alone can be gotten from brine by evaporation to dryness; both nacl and H 2° can be collected separately by distillation, due to large difference in their boiling point with Naci higher in boiling point than H20) -. 7. Oil spillage in pond and creek can be 4 cleared by a. Burning of the oil layer b. spraying with detergent c. spraying with common slat d. spraying with oil (oil is an immiscible solvent with water, forming the upper layer due to its lower density. The spreads over the surface, cutting off the oxygen supply to the aquatic bodies from the atmosphere (reducing dissolved oxygen). Detergent having hydrophilic head and hydrophobic tail interlinks these two immiscible liquid and dissolved s the oil) 8. Which of the following is a chemical compound? A. Soap b. milk c. urine d. gold (A chemical; compound contain atom or a particular element and that of other element combining together in a means and have chemical formulae not symbol which is for elements. Soap= C17H35Ha (compound). Milk=no formula (mixture). Gold=Au(element). 9. Crystallization is a separation method used A. where purity of the product important B. Where beauty of the product is important C. where the product is a solid D. Where the product cannot be destroy by heat. 10. Which hydroxide dissolves in water to form an alkaline A. Aluminum hydroxide B. Calcium hydroxide C. Copper hydroxide D. Iron hydroxide SOLUTION TO IMSU POST-UTME 2011/2012 ENGLISH l. A 2.A 3.B 4.B 5.C 6.A 7.A 8.B 9.B b. C PHYSICS 1.D 2.C 3D 4.A 5.C 6.A 7.D 8.B’9.A b0.B CHEMISTRY b. C 2.A 3.D 4.D 5.A 6.C 7.A 8A 9.A BIOLOGY 1.0 2.C 3.A 4.C 5.A 6.B 7.C 8.B 9.B 10.A