drasrac.org Model Papers STSE Science Talent Search Examination : Dr AS Rao Awards Council

Name of the Organisation : Dr.A.S.Rao Awards Council (drasrac.org)
Type of Announcement : Model Papers – Science Talent Search Examination (STSE)

Home Page : drasrac.org
See more STSE Questions here :
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INSTRUCTIONS :
1 (a) You have to mark your answers ONLY ON THE ANSWER SHEET provided.
(b) Your Answer sheet is evaluated by computer and hence handle it with utmost care.
(c) Do not fold or make unnecessary markings on it.
(d) Use a BLACK INK PEN / BALL POINT PEN and darken the appropriate circle.

2. You may use pencil initially to mark your answer, if in doubt for later correction. However, finally you have to darken with Black Ink Pen / Ball Point Pen and erase all other pencil marks.
3. Answers marked with pencil will not be considered.
4. The questions given are of three types:

Q.Nos.1 to 80 are multiple choice, with only one correct answer. Blacken the appropriate circle completely corresponding to the correct answer (a/b/c/d) in the Answer sheet provided.

Q.Nos. 81 to 120 are Assertion – Reason type questions. Blacken the appropriate circle completely corresponding to the correct answer (a/b/c/d) in the Answer sheet provided.

Q.Nos. 121 to 150 are multiple choice, which may have more than one answer. Blacken the appropriate circle(s) completely corresponding to the correct answer(s) (a/b/c/d) in the Answer sheet. No credit for part of the answer.

5. Attempt all questions.
6. Write your Hall Ticket number completely and legibly on the Answer sheet in the space provided.
7. No calculator or logarithm tables are allowed for use in the Hall.
8. Return only the Answer sheet to the Invigilator at the end of the examination

Standard : VIII Time : 3 hours Marks : 250
Section A :
Each question given below is provided with four options of which only one option is correct. Blacken the correct one in the Answer sheet.
1. 9th term of the series 4, 7, 11, 17, 27, … is
a) 305 b) 275 c) 410 d) 512
2. Number of ways of arranging 6 persons in a row so that two particular persons want to sit exactly in middle places
a) 48 b) 24 c) 120 d) 720
3. If x = 6.8 and integral part of x is 6. Then the fractional part of 2x is
a) 0.8 b) 0.4 c) 1.6 d) 0.6
4. In ABC B = 75o C=15 AB = 6cm AC = 8cm then
a) Area of ABC is 24sq.cm b) Area of ABC is 48sq.cm c) Perimeter of ABC is 14cm d) Perimeter of ABC is 28cm
5. A and B are two towns Distance between them is 100km. Two cars from A and B started with speeds 50kmph and 20kmph respectively. If they are travelling in same direction how much time will A take to meet B.
a) 3hrs b) 3hrs 20minutes c) 1/3/7 d) 8hrs
6. The angle between two hands in a watch when the tie is 4hr 28minutes is
a) 24o b) 44o c) 34o d) 54o
7. 16 workers can dig a well of 800 feet deep in 10 days. Time taken by 24 workers to dig a well of 720 feet deep is
a) 6 days b) 6 ½ days c) 8 days d) 15 days
8. Some KClO3 is heated in a test tube and the gas evolved passed into another test tube containing hot coke (carbon) giving off another gas. The gas evolved in the second test tube will
a) Turn starch iodide paper blue b) turn red litmus blue c) turn lime water milky d) decolorise KMnO4 solution
9. I have 100 g of CaCO3. If I heat it strongly for sometime, in an open dish, cool it and weigh it again, its weight would be
a) 95 g b) 56 g c) 44 g d) 40 g
10. An amphoteric oxide reacts with both acids and strong bases. An example of an amphoteric oxide is
a) Al2O3 b) CO c) CaO d) SO2

Standard : X Time : 3 hours Marks : 250
Section – A :
Each question given below is provided with four options, of which only one option is correct. Blacken the correct one in the answer sheet.
1. A circular ground of radius 10m. is to be paved by 2001 identical tiles in the shape of isosceles triangles with lateral sides equal to 10m. If all the vertices should be at the centre, the length of the base of the tile is
a) 20 Sin (1/ 2001) b) 10 Sin (1/ 2001) c) 10 Sin (2 / 2001) d) 10 Sin (2/ 2002)
2. The minimum value of (x-1)2 + (x-2)2 +…+(x-2001)2 is attained at x equal to
a) 2001 b) 1001 v) 2000 d)1000
3. A lattice point in a plane is a point with integral coordinates. The number of lattice points in the interior of the rectangle whose vertices are (30,70), (100,70), (30,100) and (100,100) is
a) 2201 b) 2100 c) 2001 d) 1904
4. C1 is a fixed vertical circle. A circle C2 of smaller radius moves on the horizontal common tangent of both the circles. C2 starts its motion when it is in contact with C1. It moves such that it overlaps the first circle. Let ?1 denote the area of the overlap and ?2 denote the difference of the non-overlapping areas. Then
a)2 increases as ?1 increases
b)2 increases as ?2 decreases
c)2 is a constant
d)1 / ?2 is a constant
5. A 4m x 4m square GI sheet rests against a vertical wall making an angle of 300 with it. The area of ground in square meters that is protected from the vertical rain is
a) 8/3 b) 8 c) 8/3 d) None of these