Answer key to CEED 2019 Part-A question paper

You may download CEED 2019 question paper here

Detailed explanations to some of the design aptitude questions of this paper are available in the below set of videos

CEED 2019 answer key with explanations

1) 2440

As shown in the below image, the number '2' is not in proper font as the rest. Note the colon type extension for the number, which the font type is not following for the other numbers. 

2) 7

Note the common series followed.

Consider the first row with numbers 2, 4, 5

Now consider the last two number 4, 5

5 - 4 = 10

Add 1 gives 1 +1 = 2 (first no.)

Following the same for the others also, you can note the same pattern

(third no. - secibd no.) + 1 = First no.

second row (3-3)+1 = 1

third row  (8-4) + 1 = 5

seventh row (7-3) + 1 = 5

eight row (? - 4) +1 = 4

? - 3 = 4

? = 4+3 = 7

3) 17

In the below image, I've marked the intersections in red circles. 

4) 330

In the below image, I've given numbers (1,2,3) for the important circles of dia. 10cm, 5cm and 35cm. 

Note that 2 and 3 are connected together and so the no. of turns (revolutions) made by circle 2 is the same as the no. of turns/revolutions done by circle 3. So, finding the no. of revolutions of circle 2 is needed. 

for every 1 revolution of the pedal (circle 1), the chain length traveled will be equal to the perimeter of the circle, which is 2*PI*r

here r = 10/2 = 5 (half the diameter)

for 1.5 revolutions, chain travel = 1.5*(2*PI*r) = 1.5*(2*PI*5) 

The chain length traveled over chain 2 is the same as length traveled over chain 1. 

for 2*PI*R travel of chain, no. of revolutions of circle 2 is 1 (here R = 5/2=2.5)

for 1 travel of chain, no. of revolutions of circle 2 is 1/(2*PI*R) = 1/(2*PI*2.5)

for 1.5*(2*PI*5) travel of chain, no. of revolutions of circle 2 is 1.5*(2*PI*5)*1/(2*PI*R) = 1.5*(2*PI*5)/(2*PI*2.5) = 1.5*5/2.5 =3

SO, circle 3 will also make 3 revolutions. 

Perimeter (distance travelled by the wheeltouching the ground) for 3 revolutions L = 3*(2*PI*r) 

here r = 35/2

so, 

l = 6*PI*35/2 = 6*(22/7)*(35/2) = 330

5) 10

There are 17 empty glasses and 7 filled glasses. So, we can fill another 7 glasses in the empty glasses, making the empty glasses now as 17-7 = 10 glasses

6) 18

No. of surfaces for the donut shape marked as 1 in the below image (since it is continuous) = 1

Assuming the view as shown in the image above,

No. of surfaces from front = 3

No. of surfaces from right = 2

No. of surfaces from back = 2

No. of surfaces from left = 3

No. of surfaces from top = 4

No. of surfaces from bottom = 3

Learn - counting of solid surfaces

7) 13.5

According to the theory of hydrostatic pressure, water in both the tanks shall be on the same level. That means water from Tank A flows to B until it's level drop to the max. level of water in B. Since the water level in B is limited to the Tank B, the water level in A will also be to the level of Tank B as shown below. Note that water will get overflow in Tank B. Area os water in Tank A (red color) is 3X3X(2.5-1) = 13.5

8) 4.82

In the below image, I've marked two red lines with a vertex Z, where Z is the midpoint of BC, and DZ is a new line of unknown length. The required height (height of I from the ground) is IZ + CG (or BF) = IZ + 2

IZ is a part of the triangle DIZ, we know DI (5 cm) and if we get DZ also then we can find IZ.

Note that DC = 4cm, ZC = 2/2 = 1cm

I've shown the further working in the below image.

9) 57

The below list shows the no. of edges formed by each shape.

Triangle = 3 + 3 + 3 = 9 (This is because there will be a triangular hole which will have three edges at the top of the convex, 3 edges at sides and 3 edges inside the convex representing the bottom. For illustration, this is shown as solid shapes in the below images, which is actually the same as the cut holes inside the convex) 

Square = 4+4+4

Pentagon = 5+5+5

Hexagon = 6+6+6

circle = 1+1

And 1 edge is already present (outer circle of the convex)

So, total edges = 9+12+15+18+2+1 = 57

Lines in red represent the edges visible at the top

Lines in blue represent the edges in the side

Lines in black represent the edges in the convex bottom.

10) 17

Given 

20J + 3B = 1M + 1P  (1)

2M + 5B = 4P + 80J   (2)

8P + 2M = how many bananas = xB

we want x.

As you can see, in the requirement, there is no Jamuns. So, let us eliminate that.

multiplying (1) by 4

80J+12B = 4M + 4P (3)

Now, adding (2) to (3) 

80J+12B + 2M + 5B = 4M + 4P + 4P + 80J 

17B + 2M = 4M + 8P

17B = 8P + 2M

So, we need 17 bananas 

11) B

12) A,C 

Keeping the two stone texture (as highlighted in red) as a reference, we can check the options to see which fits the best.

13) C,D

In the below image, I had numbered the order of drawing continuous lines (you can have another order also). 

14) All are correct 

15) B, C, D

Only A will stay, the remaining will topple. The bottom leg of the table should be to the right of the red mark in order to support the weight.

16) B

As shown in the below image (left-hand side view), the dot at the bottom left corner (point 2) indicates that the position of it (Dot B in the top view) should be at point 1 shown as blue dot.

17) A, B, C 

by simple observation

A is obtained by rotating clockwise 135 degrees the given pattern

B is obtained by rotating anit-clockwise 135 degrees the given pattern

C is obtained by rotating anit-clockwise 45 degrees the given pattern

Although D seems to have been obtained by rotating 45 degrees clockwise, the color of the four grids (Highlighted in yellow square in the below image) is different from the actual and so it is not correct. 

18) A, C

19) A, D

20) A, D

According to the small size of line 1, it should be far from the viewer in perspective. But it was shown as thick which means the line is the thickest of all. If Line 1 is the thickest, then four lines cannot be of the same thickness. Clearly, line 2 is thicker than line 3. 

21) B

22) A

As shown in the below image, note the two consecutive diagonal elements. They all have the same pattern throughout the diagonal line. So, we can say that the bottom left pattern of the question mark is the same as the pattern that lies on that diagonal. The same logic applies to the top right corner of the question mark.   

As shown in the second image below, the patterns in the diagonals (highlighted) alternates. In each diagonal highlighted, only two patterns alternate. Now, I hope it's easy for you to identify the patterns along the diagonal over the question mark.

23) B

By careful observation. First, note the red lines and check for the pattern match in the option. Then, check the green lines pattern match with the option. B fits the requirement.

24) D

Since the facial expression is the same for all the images, what we need to check is the position of the hand fingers fold. When we stretch our hand up above while yawning, we try to stretch all parts of the upper body, which includes wrist and bend it downwards as highlighted in the below image. 

Learn -  step-by-step animation process making

25) C

As shown in the image below, since the curved body portion of the lizard is toward the right, the right legs of the lizard should be closed as shown in image 2. 

Also, the left side legs of the lizard should be outwards as marked in image 3 below.

Animation study for design exams

26) C

D is the worst design of all as there was no clearance below the palki, making it difficult both for the labors and the traveler.

For the palki to be comfortable to the workers, the support (using which the labors hold them) must be raised high from the ground. Also, the traveler who sits on it should not feel like he has been raised very high above the ground. This again will easily make him topple to sideways. So, his weight should better to lower to the ground. 

Considering all these requirements, C seems the best option.

27) A

By careful observation. Note that the corners will be sharp and not curved as in C. 

28) A

This is nothing but the side view of the structure. For better understanding, I would suggest you check on how to identify the different views of 3D solids.

29) A

Check now to work with - image and solid manipulation 

Let us just worry about the highlighted part as shown in the below image and apply the changes mentioned in the ques. 

Rotating the solid by 90 deg about Z axis will result in the following config - considering only the highlighted part.

30) B

In the below image, I've shown the unfold view (to fold 3 positions) of the cuts to give an idea of how the unfolding is done and how the slots appear. Using that as a reference I believe you can do the remaining unfolding.

31) B

Check more info on Photography here

32) B

Note the direction in which the solid star is rotating. The direction is marked in red below.

Also, note the movement of the corner 'C' in every rotation. According to the pattern of the corner C in all the 5 patterns, the next position of C should be as shown in option B. Option B comes next to option A. 

33) C

This is a bit tricky question - as the position of the cat relative to the wall surface 'W' is not exactly given, If the cat is left to the wall (or at the center), option C should be applicable based on the maximum height of the penthouse and the main house. But, if the cat is to the right of the wall 'W' then the view would be something like D. 

I will assume that the cat is at the center of the wall and hence the answer will be C. 

34) A

In the below picture, I've numbered the sequence of transaction of the square with the dot patterns. As is clear, in every transaction (1 to 2, 2 to 3.....etc.) the size of the dot is increasing. But, this increase in dot size is visible only till 9. After 9, the dot sizes starts decreasing, as is clear from 10 and 12. So, the size of the dots in 11 should be smaller than 12 and larger than 10. Also, another check to be done is the size of the white square spaces. The white spaces should be larger than 10 but smaller than 12. Option A fits the requirements.  

Find resources related to ability test ques like above in this uceed page

35) 

As far as I know, the man-made fan shown is the traditional product of Andhra/Tamil-Nadu. Also, the handlebar for the teacup shown as first product reminds me of those which are made for cold places like J&K. Rest products I'm not sure. The option should be one of B and C.

36) C

Casting, punching, and forming are the operations meant for metals and not for wood. Clearly, C is the option that has none of the above three options. 

The operation performed in the sequence are - Cutting, chiseling, drilling, chiseling, finishing

Learn more about materials and manufacturing process here

37) B

Clearly,   

P and S have human elements

Q has bird element

R has an animal element.

38) B

Below set of images will give the total count. 

39) B

As shown in the below picture, the top view will be from the direction as shown by an arrow. Note that the curved and slant surfaces will not add edge but only sharp edges will form a circle as shown in red extension lines.     

In the next image, I've shown the width between two successive lines that form a circle when rotated about the axis. Note that d1 is double the dia. owing to the rotation.

40) D

As shown in the below first image by blue arrows, the ball is moving one step in the clockwise direction in every pattern numbered as 1,2,3...9 in red color. So, according to that, the position of the ball from 8 to 9 should be as indicated by blue arrow in 8. 

However, the V kind shape in each pattern is following a different trend. When the position of the ball moves to the position of V (as in patterns 3 and 6 shown by red arrows), the V shape moves one step anti-clockwise as shown in pattern 3 and 6 by blue arrows. 

Now, considering the above two criteria, option D is correct.

41) B

For easy understanding, I've shown the scenario in the below image.

When the viewer views as he was standing on the ground, the painting (which will be on the floor, shown as CD) will be visible along the line AB. Assuming this way, the given image in the left (check the question) shall be considered as that seen in AB. The same AB on the floor (CD) will be stretched. Especially, the portion of the painting near to A will be less stretched while the portion of the image near to B will be greatly stretched. 

42) D

43) B

44) C

45) B