NSO - Mock Test

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Question 1
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Which two signs should be interchanged to make the equation correct?

6 + (9 - 3) ÷ (8 + 1) x (7 - 4) = 24

A
x and ÷

B
+ and ÷

C
- and ÷

D
+ and -

Question 2
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Gurpartap has 5 holidays in between every consecutive exam. The first exam is on 26^th of February, which is a Friday. On which day will he have the next exam, if he has exams in a leap year?

A
2^nd March

B
3^rd March

C
4^th March

D
5^th March

Question 3
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In the above figure, A, B, C, D, E and F form a net. What will be opposite to C if the net is folded?

A
A

B
E

C
F

D
None of these

Question 4
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Look carefully for the pattern, and then choose which pair of numbers comes next.

42 40 38 35 33 31 28

A
25 22

B
26 23

C
26 24

D
25 23

Question 5
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Aruna knows that her friend's anniversary is between 10^th and 15^th, and Sameer knows that it is between 12^th and 18^th, but they both know that it is on Sunday. If on 10^th it is Wednesday, then what is the exact date of the anniversary?

A
12^th

B
13^th

C
14^th

D
15^th

Question 6
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Diana walks 4 km towards south and then turns to her left. She walks 3 km ahead and reaches a shop. Then, she turns to her left and walks 4 km. How far is she from the starting point?

A
11 km

B
9 km

C
5 km

D
3 km

Question 7
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Find out the alternative figure which contains figure (X) as its part.

A
(a)

B
(b)

C
(c)

D
(d)

Question 8
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Which of the following is the net of the given shape?

A

B

C

D

Question 9
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Pointing towards a girl, Sonu said, "She is the mother of my paternal grandfather's son." How is the girl related to Sonu?

A
Mother

B
Grandmother

C
Aunt

D
Sibling

Question 10
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Find the odd one out in the given series.

43, 88, 179, 358

A
43

B
88

C
179

D
358

Question 11

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Observe the Venn diagram given below and select the option that best represents A, B, C, D and E.

S. No.	A	B	C	D	E
1.	Glass	Mercury	Ink	Wood	Aluminium
2.	Aluminium	Ink	Glass	Wood	Mercury
3.	Glass	Mercury	Wood	Ink	Aluminium
4.	Glass	Aluminium	Ink	Wood	Mercury

(1)

(2)

(3)

(4)

Question 12
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What happens if a magnet is left to itself over a long period of time?

A
It loses its magnetic property.

B
Its magnetic property gets stronger.

C
No effect on properties of magnet.

D
It starts dissolving at its own.

Question 13
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Which of the following statements is not true for reflection in plane mirror?

(a) Angle of incident is equal to angle of reflection.
(b) The image is inverted horizontally.
(c) The image is inverted vertically.

A
Only (a)

B
Only (a) and (b)

C
Only (c) and (a)

D
Only b

Question 14
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A student wants to check the presence of starch in potato, so he puts iodine solution with a dropper on potato. What effect will be shown?

A
Blue black colour will be observed when iodine solution is applied.

B
Blue colour will be observed when iodine solution is applied.

C
Black colour will be observed when iodine solution is applied.

D
Blue red colour will be observed when iodine solution is applied.

Question 15
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If the the refractive index of any glass is 1, then which of the following statements is true regarding the glass?

A
The refracted ray will turn towards normal after refraction.

B
The refracted ray will turn away from normal after refraction.

C
The light will be partially reflected.

D
The glass will become invisible.

E
The speed of light in glass is less than the speed of light in air.

Question 16
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In which of the following cases will regular reflection not take place when a beam of light strikes it?

A
Marble flooring with oil spread over

B
Mirror

C
Shiny metal sheet

D
Unpolished wooden surface

E
Water

Question 17
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Piyush does not consume protein-rich food for a long time. Which of the following disorders can he face?

A
Poor vision

B
Swelling of face

C
Weak teeth

D
Bleeding gums

Question 18
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Which type of roots is present in the plant shown below?

A
Lateral roots

B
Tap roots

C
Fibrous roots

D
Transpiratory roots

Question 19
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Which of the following statements is not true?

A
Aquatic animals can breathe inside the water.

B
Earthworms cannot breathe inside the soil.

C
Flour mills can be run by moving air.

D
Plants cannot live without oxygen for long time.

Question 20
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How do organisms living in the soil breathe?

A
They use nitrogen from the soil.

B
They use carbon dioxide from the soil.

C
They use oxygen from the air trapped in the pockets of the soil.

D
They use water vapours from the soil.

Question 21
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An electrician uses a screw-driver to repair the electric devices. The handle of a screw-driver is usually made of

A
rubber or plastic

B
iron

C
steel

D
aluminium

E
quartz

Question 22
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Observe the given flow chart showing the interconversion of different states of water, brought about by either heating or cooling.

The process A, B and C respectively are:

A
Freezing, Vaporisation, Condensation

B
Fusion, Vaporisation, Condensation

C
Vaporisation, Condensation, Fusion

D
Malting, Condensation, Evaporation

Question 23
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Study the following flow chart to identify food components 'X', 'Y' and 'Z'.

Read the following statements regarding 'X', 'Y' and 'Z', and select the correct ones.

(i) Cellulose is a 'X', which is not a food for humans.
(ii) Z are the richest source of energy to our body, but they require more oxygen for their combustion.
(iii) When we consume more Z than required, our body stores the excess of Z as Y.
(iv) X act as insulator and keep our body warm.
(v) X are essential for the maintenance of body tissues.

A
(i), (ii) and (iii)

B
(ii) and (v)

C
(iii), (iv) and (v)

D
(i) and (iv)

Question 24
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Light is a form of energy produced by a

A
luminous object

B
transparent object

C
non-luminous object

D
opaque object

E
atom object

Question 25
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The given figure is a cross section of the lady's finger fruit. Identify: (i) the parts labelled 'X', and (ii) the parts of the flower from where they have been developed.

A
(i) - Pollen grains
(ii) - Anthers

B
(i) - Seeds
(ii) - Ovules

C
(i) - Ovules
(ii) - Ovary

D
(i) - Seeds
(ii) - Stigma

Question 26
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Which of the following is/are the symptom(s) of Kwashiorkor?

A
Anaemia

B
Dark and scaly skin

C
Mental retardation

D
All of the above

Question 27

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Observe the diagram depicting some stages during the processing of cotton, and identify the parts labelled X, Y and Z.

S. No.	X	Y	Z
1.	Cotton bolls	Seeds	Lint
2.	Lint	Cotton bolls	Bales
3.	Cotton bolls	Seeds	Bales
4.	Bales	Cotton bolls	Lint

(1)

(2)

(3)

(4)

Question 28
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The stem(s) of which of the following plants is/are the source of food?

A
Ginger

B
Potatoes

C
Garlic

D
All of the above

Question 29
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The rate of sedimentation can be improved by which process?

A
Heating

B
Cooling

C
Loading

D
Stirring

Question 30
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Pigments of photosynthesis are present in which organelle of the plant cell?

A
Cytoplasm

B
Chloroplast

C
Nucleus

D
Mitochondrion

Question 31
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Which of the following statements about cooking of food are incorrect?

a. It is a chemical and reversible change.
b. It is a physical and reversible change.
c. It is a physical and irreversible change.
d. It is a chemical and irreversible change.

A
a and b

B
c and d

C
a, b and c

D
a, c and d

Question 32
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In a process of photosynthesis, plants take carbon dioxide and release oxygen. Which of the following is/are responsible for taking carbon dioxide from atmosphere?

A
Stomata

B
Stem

C
Roots

D
Sepals

Question 33
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A mixture of stones, sand and salt in water is passed through a series of processes, A, B and C. The stones are separated out after process A, sand after process B and salt after process C, as indicated in the flow chart.

The correct identification of processes A, B and C is:

A
A: Sieving
B: Filtration
C: Evaporation

B
A: Filtration
B: Sieving
C: Evaporation

C
A: Filtration
B: Evaporation
C: Sieving

D
A: Evaporation
B: Filtration
C: Sieving

Question 34
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What is the name of the process by which pure solids of copper sulphate can be obtained from its impure sample?

A
Recrystallisation

B
Filtration

C
Sublimation

D
Fraction distillation

Question 35
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What is the other name of sundial, which was used to measure time in olden days?

A
Samrat Yantra

B
Qutub Yantra

C
Magneto Graphs

D
Hourglass

Question 36
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Which part of amoeba is responsible for taking food inside the body?

A
Pseudopodia

B
Cilia

C
Flagella

D
Villi

Question 37
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Which of the following is not an example of reversible change?

A
Contraction of metal

B
Making of curd from milk

C
Melting of ice

D
Folding of paper

Question 38
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Which of the following pollutants causes ozone holes?

A
Carbon dioxide

B
Sulphur dioxide

C
Carbon monoxide

D
Chlorofluorocarbon

E
Hydrogen sulphide

Question 39
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Which of the following can be separated by threshing?

A
Butter from milk

B
Pebbles from sand

C
Grain from stalk

D
Tea from liquor

Question 40
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In the given food chain, who is the secondary consumer?

Grass Grasshopper Frog Snake

A
Snake

B
Frog

C
Grasshopper

D
Grass

E
All of the above

Question 41
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Which of the following vitamin is required for clotting of blood?

A
Vitamin A

B
Vitamin K

C
Vitamin B

D
Vitamin E

Question 42
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Which of the following is incorrect regarding skeletal support system of different organisms?

A
Earthworms have liquid skeleton where liquid-filled spaces inside the body serve as a support system.

B
Skeletal muscles work in pairs.

C
Snakes have bristles on the under surface of the body to support movement.

D
Birds have hollow bones with air-filled cavities.

E
None of the above

Question 43
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Which of the following statements is false about these circuits?

A
In circuit 2, the current will flow through battery but not through bulb.

B
The heat will produced in bulb in circuit 1.

C
Total charge in the circuit remains same.

D
The current will flow in clockwise direction in circuit 2.

Question 44
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Citrus fruits which are rich in vitamin C help in recovery of __________.

A
rickets

B
beri-beri

C
scurvy

D
night blindness

Question 45
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Skeleton of the body is the combination of which two components?

A
Cartilages and bones

B
Water and blood

C
Muscles and fat

D
Fat and cartilages

Question 46

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Match the following joints with their positions in the human body and select the correct option based on that.

1. Ball and socket joint	a. Wrist joint
2. Pivot joint	b. Knee joint
3. Hinge joint	c. Joint between the skull and the vertebral column
4. Gliding joint	d. Rounded end of one bone fits into the cavity of another bone.

1 - d, 2 - c, 3 - b, 4 - a

1 - a, 2 - b, 3 - c, 4 - d

1 - d, 2 - b, 3 - c, 4 - a

1 - b, 2 - d, 3 - a, 4 - c

Question 47

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Match the parts (a, b, c, d) of the chart with the statements (1, 2, 3, 4) given below:

a. Winnowing	1. Cooling of vapour into its liquid state
b. Filtration	2. Separation of lighter particles from heavier particles under the influence of wind
c. Condensation	3. Separation of solid crystals of the solute from the supersaturated solution
d. Crystallisation	4. Separating insoluble, suspended, solid particles from the liquid component in a mixture

a - 2, b - 4, c - 1, d - 3

a - 2, b - 1, c - 4, d - 3

a - 4, b - 2, c - 3, d - 1

a - 3, b - 1, c - 4, d - 2

Question 48

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Observe the table given below and select the correct match between the terms in column I with suitable options from columns II and III.

Column I	Column II	Column III
1. Water cycle	a. Scarcity of water	(i) Water is a renewable resource.
2. Rainwater harvesting	b. Circulation of water	(ii) Water table falls.
3. Drought	c. Collecting water	(iii) Catch water where it falls

2, c, iii

1, c, i

3, a, iii

2, a, ii

Question 49
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The above figure depicts the characteristics of X. Choose the correct statement about X from the following:

A
X is fibrous in mango.

B
X conducts water in the plants.

C
X is the first part that emerges during germination.

D
X bears nodes and internodes.

Question 50
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Complete the flow chart given below:

A
(a) dry cell
(b) metallic cap
(c) flat base
(d) wet cell

B
(a) device which produces electric current
(b) dry cell
(c) wet cell
(d) metallic cap

C
(a) device which does chemical reaction
(b) dry cell
(c) wet cell
(d) flat base

D
(a) which produces electric current
(b) wet cell
(c) dry cell
(d) flat base