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Observation ExploreExperiment

Junior Set D

NOTE 1. Check that this question paper has 16 printed pages. Kindly contact the room invigilator if you find any page missing or not printed. 2. This question paper has 25 multiple choice questions. Every question has 4 options, out of which only ONE is correct. In case more than one option appears to be correct, choose the most suitable option. 3. There will be NO negative marking in any question. 4. You will be given an OMR sheet to answer the questions. You have to fill your answer choice for each question on the OMR sheet. 5. The OMR sheet has to be filled using an HB pencil only. Use of any other kind of pencil or pen is strictly prohibited. 6. The proper way to fill the bubble is to color it completely using the pencil. Do not scribble, cross or tick your bubbles to mark them as answers. 7. Please note that the question paper will NOT be explained in any form whatsoever. 8. At the end of the examination, you are supposed to hand over the OMR sheet to the invigilator. You can take the question paper along with you.


Rough Work


Q1. Different porters (also known as a coolie) have different ways in which they carry luggage.

A

B

Which method of carrying the luggage bags would be more preferable in order to maintain more balance? A. A B. B C.Both the methods of carrying luggage are equally preferable D. Can’t say Q2. While traveling in a sail boat, I observed that the wind was blowing heavily from my left to right side. Now I need to adjust the sail of my boat so as to keep the boat moving ahead without the fear of boat falling over. Which of the following adjustments of the sail would be most suitable?

D. None of these can make

Top View A.

Side View

B.

C.

the boat move ahead.


Q3. A Dare Devil while performing a stunt has to jump from a train which will be arriving on the platform in 5 minutes. However, the train won’t stop there. What should he do while jumping to avoid chances of getting hurt?

A. He should start running in the direction of the moving train. B. He should start running opposite to the direction of the moving train. C. He should start running sideways to the direction of the moving train. D. He should not run at all when he jumps on to the platform.

Q 4. How do you throw a ball and make to come back to you?

The following are three possibilities:

I. Throwing it against a plane wall.

II. Rolling it up against an incline plane.

III. Throwing it vertically upwards.

In which of these the ball will come back to you at the same speed it left your hand? A. Only I is correct. B. Only III is correct. C. Only II and III are correct. D. All three are correct.


Q5. Lily made an electric circuit to make a bulb glow, but when she switched it ON, the bulb did not glow at all! Which of the following circuits was made by Lily?

A.

Copper wire

Iron nail

B.

OFF

OFF

ON

ON

C.

Glass rod

D. Lily could have made any of these circuits.

OFF ON

Q6. Given below are two bridge-like structures made out of drinking straws. A toy cart has to be placed over the straw bridges (as shown in the figure).

bridge I

bridge II

Which of the following statements is true about bridge I and II carrying the load of the toy cart? A. B.. C. D.

Bridge I is stronger than II. Bridge II is stronger than I.. Both are equally strong. Cannot be determined.


Q7. A piece of paper is cut and then folded to make a pentagonal pyramid. Given below is

one such paper cutting which can be folded to complete a pentagonal pyramid. The Number of folds required on this cut-out to make this pentagonal pyramid are:

A. 4 B. 5 C. 6 D. 7

Q8. Some missing parts have to be fitted in the wooden playing board to complete the

figure as shown below.

1

2

3

4

5

6

“Four” of these ”six” pieces can correctly fit in. Which of the following sets can be used? A. 1, 2, 3 and 4 B. 1, 2, 4 and 5 C. 1, 2, 4 and 6 D. 1, 3, 4 and 5


Q9. The arrangement shown below has been made by connecting two pulleys. One of the pulleys can be rotated using a hand driven pedal which results in the rotation of the fan connected to the second pulley.

FAN

PEDAL

Which of the following is correct about the above system? A. The fan will rotate faster than the pedal. B. The fan will rotate slower than the pedal. C. The fan will rotate as fast as the pedal. D. The fan will start rotating slower than the pedal but later it will end up rotating faster.

Q10. Rohan loves to fly kites. He went to the market to buy some kites, where he came across different designs of kites. Which of the kites would be most difficult for Rohan to fly?

A.

B.

C.

D.


Q11. In a domino set if we make the first domino fall, it makes the next one fall and so on till the last domino.

Raju modified this domino set in ways as shown in the picture. In which of these, it is most likely that the last piece on the right will fall?

A.

B.

C.

D. None of the above. Q12.An L-shaped object is kept in front of the mirror as shown. Which of the following shows correctly the reflection which would be seen in the mirror?

A.

B.

C.

D.


Q13. A windmill is a good way to make use of renewable natural resources. There are 5 windmills placed in a farm. Given the aerial view and the wind direction which of the following layouts of

C.

B.

D.

WIND

WIND

WIND

A.

WIND

windmills would be best for generating the maximum amount of electricity with 5 wind mills?

Q14. Given below is an arrangement of two gears. The upper A gear has a fixed axis. The bottom gear B is being moved in the forward direction as shown.

A

B Which of the following is correct about the motion of gear A? A. The upper gear A will rotate in clockwise direction. B. The upper gear A will rotate in anti-clockwise direction. C. The upper gear A will not rotate. D. The direction of movement is impossible to determine.


Q15. I filled up a water bottle and I tried to push its neck so that it bends over but does not

fall. I tried the same experiments on a half filled bottle and also on an empty bottle.

Fully Filled

Empty

Which of the following would be a result of my experiment?

A) B) C) D)

Fully filled bottle will bend more before falling over Empty bottle will bend more before falling over Both the bottles will bend the same before falling over Information insufficient to find out.

Q16. A small rectangle is cut out from a larger rectangle. The diagonals of both the rectangles intersect at the same point.

.

In how many ways can we divide the remaining green area into two parts of equal area using one straight cut? A. Only one way B. Two ways C. Can not be done D. Infinite number of ways


Q17. Given below is a lever arrangement which has to be used to lift a stone. Given that the length of the wooden planks is same and the position of the wedge-like base is different in each case (as shown in the figure). Which one of the following arrangement would require the least effort in lifting the stone?

A.

B.

C.

D. All the three arrangements would require same effort

Q18. A pencil is resting on a circular disc (fig I). The pencil is free to move up or down but the tip of the pencil always maintains contact with the disc even when the disc rotates. The shape of the rotating disc is now changed as shown in fig. II.

PENCIL CIRCULAR DISC

I

II

What would happen to the pencil if this new disc(fig. II.) starts rotating in a clockwise direction? A. B. C. D.

The pencil will remain stationary. The pencil will move up and then will move down to its original position. The pencil will move down and then will move up to its original position. The information is not sufficient to find out.


Q19. Parachutes are usually meant to slow down the motion of an object falling down. Given

below is one such kind of a parachute-a Conical Parachute.

Conical parachutes get a lot of air resistance and have no control over direction. Parachutes can be used for many different purposes. Two of them are: I. Food and medicine supply during a military mission. II. Para-Gliding as an adventure sport. Which of the following statement is correct about the given parachute? A. B. C. D.

Conical parachute is more suitable for I Conical parachute is more suitable for II Conical parachute is equally suitable for I and II Conical parachute is not at all suitable for either I or II

Q20. In the given arrangement of gears how will the gears B and C(see figure) move if gear A is rotated in clockwise direction?

B

C

A

A. B. C. D.

Gear B will rotate in clockwise direction and gear C will rotate in anti-clockwise direction. Gear C will rotate in clockwise direction and gear B will rotate in anti-clockwise direction. Both the gears B and C will rotate in anticlockwise direction The entire arrangement of gears will not rotate.


Q21. Which of the following designs of a door knob would be the most comfortable for a small child to open the door?

A.

B.

C.

D.

Q 22. A large and heavy stone is supported by wooden logs. Three different kinds of supports

are made using the same type of wood. Which one of the following would be the correct order of their stability?

I. A. Stability of I>II>III B. Stability of I>III>II C. Stability of III>I>II D. All would be equally stable.

II.

III.


Q23. The four wooden objects shown below are pushed at the top edge and tilted till they fall over. Which of the following will tilt the least before falling over?

A.

B.

C.

D.

Q24. The figure below shows the shape of a boat. Which one of the marked places according to you would be the best suited place for keeping a very heavy load such that the boat stays stable while sailing?

D. The boat will be unstable in all cases.


Q 25. Rohan and Abhay love to fly kites. On one evening they were flying kites when Rohan

cuts Abhay’s kite over the Building B. Light wind is blowing towards the north. Where is Abhay’s kite most likely to land? (Hint: The position of the sun and the shadows are shown)

Rohan’s kite Abhay’s kite

B

A

D

A. The roof of Building A B. The roof of Building B C. The roof of Building C D. Spot D on the ground

END OF PAPER

C


Rough Work

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Iken Scientifica Round 1 practice papers  

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