+2 Science Entrance Examination Model Set 1

Following Model Set for +2 Entrance Examination is intended for POST SEE students. It covers questions from Physics, Chemistry, Biology, Mathematics, English, General Knowledge and IQ.

The dimensions of Impulse is similar to that of

Force

Linear Momentum

Pressure

Angular Momentum

opt2

Explanation

A force of 20N acts on a particle of mass 2 Kg and displaces it by 5m at and angle of 30o. What is the work done?

40 J

50 J

100 J

50 root 3 J

opt4

Explanation

An athlete runs some distance before taking a long jump because:

It helps to apply large force

By running action and reaction force increases

He gains energy to take him through long distance

By running the athelete gives himself larger inertia of motion

opt4

Explanation

If the radius of earth were to decrease by 1%, its mass remaining the same, the acceleration due to gravity on the surface of earth will:

Increase by 1%

Decrease by 1%

Decrease by 2%

Increase by 2%

opt4

Explanation

The time period of a simple pendulum is doubled if

Its length is doubled

Mass of the bob is doubled

Its length is made four times

Mass of bob is doubled and length of pendulum is also doubled

opt3

Explanation

A boat having a length 3m and breadth 2m is floating on a lake. The boat skinks by 1cm when a man gets on it. The mass of the man is

60 Kg

72 Kg

12 Kg

128 Kg

opt1

Explanation

The correct value of 0oC on the Kelvin scale is

273.15 K

272.85 K

273 K

273.2 K

opt1

Explanation

A solid ball of metal has a concentric spherical cavity within it. If the ball is heated, the volume of the cavity will:

Increase

Decrease

Remains unaffected

None of the above

opt1

Explanation

Two blocks of ice when pressed together join to form one block because:

Of heat produced during pressing

Of cold produced during pressing

Melting point of ice decrease with increase in pressure

Melting point of ice increase with increase in pressure

opt3

Explanation

The ratio of the speed of a body to the speed of sound is called

Sonic index

Doppler ratio

Mach number

Refractive index

opt3

Explanation

A person approaches a plane mirror with velocity V. Then relative velocity of approach of person and his image is

V/2

Zero

opt3

Explanation

An air bubble in the slab (mu = 1.5) appears 6cm from one side and 4cm from the other side. The real thickness of the glass slab is:

10 cm

6.67 cm

15 cm

Cannot be estimated

opt3

Explanation

The length and radius of a wire are l and r respectively. Its resistance is R. After hammering the radius of the wire is made r/2. The new resistance will be

R/4

16R

opt4

Explanation

The group of small pieces of rock revolving round the sun between the orbits of Mars and Jupiter are called

Meteors

Comets

Meteorites

Asteroids

opt4

Explanation

Proton (p), neutron (n) and electron (e) are the fundamental particles of an atom. The correct order of their mass is:

p > n > e

e > n > p

n > p < e

e < p < n

opt4

Explanation

Which of the following postulates is not according to Dalton’s atomic theory?

Atom can neither be created nor be destroyed

Matters are made up of indiviudal particles called atoms

The mass of an atom can be changed into energy

Atoms of same substance are identical

opt3

Explanation

The maximum number of electrons is in:

71 gm Chlorine

98 gm Magnesium

127 gm Iodine

4 gm Hydrogen

opt3

Explanation

(A) Electron (i) No charge and unit mass

(B) Neutron (ii) Unit negative charge and unit mass

(C) Proton (iii) Unit negative charge and negligible mass

(D) Positron Unit positive charge and unit mass

(E) Antiproton Unit positive charge and negligible mass

A (ii), B(iv), C(v), D(ii) and E(i)

A(iii), B(v), C(i), D(iv) and E(ii)

A(ii), B(i), C(v), D(iv) and E(iii)

A(iii), B(i), C(iv), D(v), E(ii)

opt4

Explanation

The C – C bond length is the shortest in

C2H6

C6H6

C2H5Cl

C2H4

opt4

Explanation

A catalyst

Increases the average kinetic energy of molecules

Increases activation energy

Decreases activation energy

Increases the frequency of collisions of reacting species

opt3

Explanation

The molecular formula of Bone ash is

Ca3(PO4)2

C6H12O6

Na2CO3

CaSO4

opt1

Explanation

Chemical reaction which proceeds in both forward and backward directions is called a / an

Substitution reaction

Double decmoposition reaction

Irreversible reaction

Reversible reaction

opt4

Explanation

An aqueous solution of CuSO4 is

Acidic

Basic

Neutral

Amphoteric

opt1

Explanation

The first attempt to classify elements was made by

Mendeleev

Loather Meyer

Newland

Dobreneir

opt4

Explanation

Copper pyrite is an ore of

opt2

Explanation

Pure nascent hybrodgen is best obtained by

Na and C2H5OH

Zn and dil.H2SO4

Al and NaOH

All of these

opt4

Explanation

Gobar gas mainly contains

Ethane

Methane

Propane

Butane

opt2

Explanation

“A tube within a tube body plan” is met within

Hydra

Planaria

Ascaris

Fasciola

opt3

Explanation

Which of these derives most of its water requirements from metabolism and does not drink water?

Kangaroo rat

Marine fish

Kangaroo

Penguin

opt1

Explanation

Which of the following is NOT related with Sexual reproduction in protozoans?

Conjugation

Schizogony

Cytogamy

Autogamy

opt2

Explanation

The common name of Octopus is

Devil fish

Cuttle fish

Squid

None of these

opt1

Explanation

Radial symmetry is often exhibited by

Echinoderms

Coelenterates

Both a and b

None of the above

opt3

Explanation

Rabies is a ___ disease.

Bacterial

Fungal

Viral

None of these

opt3

Explanation

Introduction of Gambusia Fish in a pond to control mosquitoes, is an example of

Mechanical control

Biological control

Systemic control

None

opt2

Explanation

The application of genetic principles for the improvement of mankind is

Genetic engineering

Biotechnology

Eugenics

Anthropology

opt3

Explanation

Ligaments join

Muscle to muscle

Muscle to bone

Bone to bone

Cartilage to bone

opt3

Explanation

Choose the false statement.

Wall of veins is thinner than that of artery.

Pulmonary artery carries deoxygenated blood.

Veins are provided with valves.

Arteries are provided with valves.

opt4

Explanation

“Protoplasm is physical basis of life” said by

J. Huxley

Watson

Schwann

Mendel

opt1

Explanation

Father of Genetics is

G. Mendel

Carolous Linneaus

Bateson

Aristotle

opt1

Explanation

Structure for motility in bacteria is

Pili

Flagella

Fimbriae

Both (a) and (c)

opt2

Explanation

Spirogyra is

Pond silk

Water scum

Green algae

All of the above

opt4

Explanation

Circinate vernation in fern refers to

Adventitious roots on rhizome

Attachment of sori on leaf surface

System of leaf gaps in the steam

Leaves are coiled when young

opt4

Explanation

Suberised cell/tissue is

Xylem

Phloem

Cork

Sclerenchyma

opt3

Explanation

Largest flower in the world is that of

Lotus

Rafflesia

Giant cactus

Sunflower

opt2

Explanation

Pryamid of number is inverted for

Tree ecosystem

Forest ecosystem

Grassland ecosystem

Pond ecosystem

opt1

Explanation

If (3,3) lies on line joining points (h,0) and (0,k) then

h + k = 9

1/h + 1/k = 1/3

hk = 3

3h – 3k = 1

opt2

Explanation

THe gradient of one of the lines ax^2 + 2hxy + by^2 = 0 is twice that of other then

h^2 = ab

h = a + b

8h^2 = 9ab

9h^2 = 8ab

opt3

Explanation

The equation of tangent to the circle x^2 + y^2 + 4x – 6y – 13 = 0 at point (3,4) is

3x + 4y = 17

5x + y = 19

2x – 7y = 9

5x + 3y = 1

opt2

Explanation

If the vector i – j, j + k and a form a triangle then a is equal to

2i – j + k

i + k

j – 2k

-i – k

opt4

Explanation

The vector making an angle 45o with x-axis and having magnitude 2 \sqrt{2} is

(2,3)

(2,4)

(2,2)

(3,2)

opt3

Explanation

If A and B are two disjoint sets then $(B \cap \overline{A})$ is

$B \cup A$

$B – A$

$B$

$A – B$

opt3

Explanation

The range of function f(x) = \sqrt{4 – x^2} is

[-2,1]

[-2,3]

[0,2]

[0,1]

Explanation

The value of sin pi/10 + sin 13pi/10 =

-1/2

1/2

\sqrt{3}/2

opt2

Explanation

In any triangle maximum value of cosA + cosB + cosC is

1/2

3/2

opt4

Explanation

If sin \theta + cos \theta = 1, then the value of sin 2\theta is

-1

opt1

Explanation

If $left [ \displaylines{ 1 & 1 & 1 \\ 1 & 2 & 3 \\ 1 & 3 & 6} \right ] \left [ \displaylines{x \\ y \\ z} \right ] \ = \ \left [ \displaylines{ 3 \\ 6 \\ 10 } \right ]$ then, $\left [ \displaylines{ x \\ y \\ z } \right ] \ = \$

$\left [ \displaylines{ 2 \\ 4 \\ 6 } \right ]$

$\left [ \displaylines{ 1 \\ 2 \\ 3 } \right ] \ = \$

$\left [ \displaylines{ 1 \\ 1 \\ 1 } \right ]

$\left [ \displaylines{ 3 \\ 2 \\ 1 } \right ]

opt3

Explanation

If M_{ij} is the minor of element in the i^{th} row and j^{th} column of a matrix, its cofactor (A_{ij}) is given by

(1)^{i+j} M_{ij}

(1)^{i-j} M_{ij}

(-1)^{i+j} M_{ij}

(-1)^{i-j} M_{ij}

opt3

Explanation

The sum of the 1st ten terms of an AP whose 1st term is 5 and common difference 4 is

230

420

140

270

opt1

Explanation

If a1 = 2 and an = a(n-1) – 1, then a3 is

opt1

Explanation

The reaminder when x^100 + x^164 + 1 is divided by x – 1 is

opt3

Explanation

In the equation x^2 + (k+2)x + 2k = 0 has equal roots, then k =

-6

opt4

Explanation

How many pupils can be seated in a room with ‘s’ single seats and ‘d’ double seats?

2sd

2(s+d)

2d+s

opt4

Explanation

If x^a = y^b = z^c and y = xz, then the value of 1/a + 1/b + 1/c is

b/2

2/b

opt3

Explanation

Price of a gas was first increased by 10% and then decreased by 10%. What is total change in price of gas?

opt2

Explanation

In a race of 1km, A beats B by 20m and B beats C by 50m, by how much does A beat C?

70m

69m

68m

67m

opt2

Explanation

A milk man purhcases 30 litres of milk which contains milk and water in the ratio 7:3. How much water should be added to make the ration 3:7?

30 litres

35 litres

40 litres

45 litres

opt3

Explanation

If Rs. 450 amounts to Rs. 540 in 4 years, what sum will amount to Rs. 637.50 in 5 years?

Rs 500

Rs 510

Rs 520

Rs 540

opt2

Explanation

One side of rectangle is x inces. If the perimeter be P, what is the length of other side?

P – x

P/2 – x

P – 2x

(P – 2x)/P

opt2

Explanation

If \overline{X} = 29.5, \sum fx = 25a + 1620 and N = a + 54, a =

opt2

Explanation

In the figure, which of the following must be true?

x + y = z + r

x + r = z – y

x – y = r + z

x – r = y – z

opt4

Explanation

Ruled by one’s wife

cock-pecked

hen-pecked

pig-pecked

wifious

opt2

Explanation

Nothing but trees ___ seen.

have

are

All of the above

opt3

Explanation

He prefers going to school ___ foot.

from

with

opt1

Explanation

Choose the correct antonym of ‘candid’

frank

calm

unfair

sensible

opt3

Explanation

Choose the gramatically incorrect part:
He is one of those brave men(A) who are (B) never afraid of(C) death. No error(D)

opt4

Explanation

He is hard-up these days.

hard-pressed

in trouble

short of money

disciplined

opt3

Explanation

The word ‘cache’ means

simple

a building

a hiding place

railway station

opt3

Explanation

Forensic examination of a dead body

diagnosis

post-mortem

analysis

dialysis

opt2

Explanation

The Alpha and Omegha

the beginning and the end

a Greek song

a Swiss watch

a beautiful object

opt1

Explanation

I hate sitting ___ him as he always smells garlic.

besides

above

beside

opt4

Explanation

What is on ___ television tonight?

the

none

opt4

Explanation

A person who is fond of fighting

bellicose

quarrelsome

jingoist

garrulouse

opt1

Explanation

opt3

Explanation

Fact is often sronger than

fancy

fiction

imagination

dream

opt2

Explanation

At first blush

at first sight

in the beginning

initiation

in day

opt1

Explanation

The plural of cargo is

cargoes

cargos

cargoise

cargo

opt1

Explanation

Complete the proverb:
“Absence makes the heat grow ___”.

stronger

fast

larger

fonder

opt4

Explanation

You are required to rearrange these parts which are labeled P, Q, R and S to produce the correct sentence. Choose the correct sentence.
P: I decided to call on him.
Q: at the earliest opportunity
R: having heard of the plamist
S: before I came into town

RSPQ

PQRS

SQPR

QPRS

opt1

Explanation

Choose the oldd man out

A chain of mountains

A choir of singers

A constellation of stars

A crew of lectures

opt4

Explanation

Hater of alcholic drinks is – Teetotaller

Hater of knowledge is – Misanthrope

Hater of war is – Austere

Hater of marriage is – celebate

Hater of worldly life is – misologist

opt3

Explanation

Who is known as the Prince of Mathematics?

Lenhard Euler

LEJ Brouwer

Karl Guass

Pythagorus

opt3

Explanation

Which of the following is not an acronym?

PEN

BASIC

LASER

IMF

opt4

Explanation

The largest state of USA is

California

Montana

New Mexico

Alaska

opt4

Explanation

The currency of Germany is

Deutschmark

Dollar

Lira

Peso

opt1

Explanation

Which combination of letters completes the given series
NRJ, PNP, RJV, ___

BFT

TFB

TBF

BTF

opt2

Explanation

Pointing to a man, a woman said, “He is the only son of my mother’s mother.” How is the woman related to the man?

Aunt

Daughter

Niece

Sister

opt3

Explanation

In a beehive, the number of bees doubles every day that of previous day. In being so, the number of bees on 30th day is 1 lakh. On which day the number of bees was 50 thousand?

15th

14th

16th

29th

opt4

Explanation

What is the missing letter?
E C O
B A B
G B N
D B ?

opt2

Explanation

If “+” means “divide, “x” means “-“, “divide” means “+” and “-” means “x”, then 16 divide 8 x 6 – 2 + 12 = ?

opt3

Explanation

Which of the following birds can fly?

Puffin

Emu

Ostrich

Kiwi

opt1

Explanation

+2 Science Entrance Examination Model Set 1

The dimensions of Impulse is similar to that of

A force of 20N acts on a particle of mass 2 Kg and displaces it by 5m at and angle of 30o. What is the work done?

An athlete runs some distance before taking a long jump because:

If the radius of earth were to decrease by 1%, its mass remaining the same, the acceleration due to gravity on the surface of earth will:

The time period of a simple pendulum is doubled if

A boat having a length 3m and breadth 2m is floating on a lake. The boat skinks by 1cm when a man gets on it. The mass of the man is

The correct value of 0oC on the Kelvin scale is

A solid ball of metal has a concentric spherical cavity within it. If the ball is heated, the volume of the cavity will:

Two blocks of ice when pressed together join to form one block because:

The ratio of the speed of a body to the speed of sound is called

A person approaches a plane mirror with velocity V. Then relative velocity of approach of person and his image is

An air bubble in the slab (mu = 1.5) appears 6cm from one side and 4cm from the other side. The real thickness of the glass slab is:

The length and radius of a wire are l and r respectively. Its resistance is R. After hammering the radius of the wire is made r/2. The new resistance will be

The group of small pieces of rock revolving round the sun between the orbits of Mars and Jupiter are called

Proton (p), neutron (n) and electron (e) are the fundamental particles of an atom. The correct order of their mass is:

Which of the following postulates is not according to Dalton’s atomic theory?

The maximum number of electrons is in:

(A) Electron(i) No charge and unit mass (B) Neutron(ii) Unit negative charge and unit mass (C) Proton(iii) Unit negative charge and negligible mass (D) PositronUnit positive charge and unit mass (E) AntiprotonUnit positive charge and negligible mass

The C – C bond length is the shortest in

A catalyst

The molecular formula of Bone ash is

Chemical reaction which proceeds in both forward and backward directions is called a / an

An aqueous solution of CuSO4 is

The first attempt to classify elements was made by

Copper pyrite is an ore of

Pure nascent hybrodgen is best obtained by

Gobar gas mainly contains

“A tube within a tube body plan” is met within

Which of these derives most of its water requirements from metabolism and does not drink water?

Which of the following is NOT related with Sexual reproduction in protozoans?

The common name of Octopus is

Radial symmetry is often exhibited by

Rabies is a ___ disease.

Introduction of Gambusia Fish in a pond to control mosquitoes, is an example of

The application of genetic principles for the improvement of mankind is

Ligaments join

Choose the false statement.

“Protoplasm is physical basis of life” said by

Father of Genetics is

Structure for motility in bacteria is

Spirogyra is

Circinate vernation in fern refers to

Suberised cell/tissue is

Largest flower in the world is that of

Pryamid of number is inverted for

If (3,3) lies on line joining points (h,0) and (0,k) then

THe gradient of one of the lines ax^2 + 2hxy + by^2 = 0 is twice that of other then

The equation of tangent to the circle x^2 + y^2 + 4x – 6y – 13 = 0 at point (3,4) is

If the vector i – j, j + k and a form a triangle then a is equal to

The vector making an angle 45o with x-axis and having magnitude 2 \sqrt{2} is

If A and B are two disjoint sets then $(B \cap \overline{A})$ is

The range of function f(x) = \sqrt{4 – x^2} is

The value of sin pi/10 + sin 13pi/10 =

In any triangle maximum value of cosA + cosB + cosC is

If sin \theta + cos \theta = 1, then the value of sin 2\theta is

If $left [ \displaylines{ 1 & 1 & 1 \\ 1 & 2 & 3 \\ 1 & 3 & 6} \right ] \left [ \displaylines{x \\ y \\ z} \right ] \ = \ \left [ \displaylines{ 3 \\ 6 \\ 10 } \right ]$ then, $\left [ \displaylines{ x \\ y \\ z } \right ] \ = \$

If M_{ij} is the minor of element in the i^{th} row and j^{th} column of a matrix, its cofactor (A_{ij}) is given by

The sum of the 1st ten terms of an AP whose 1st term is 5 and common difference 4 is

If a1 = 2 and an = a(n-1) – 1, then a3 is

The reaminder when x^100 + x^164 + 1 is divided by x – 1 is

In the equation x^2 + (k+2)x + 2k = 0 has equal roots, then k =

How many pupils can be seated in a room with ‘s’ single seats and ‘d’ double seats?

If x^a = y^b = z^c and y = xz, then the value of 1/a + 1/b + 1/c is

Price of a gas was first increased by 10% and then decreased by 10%. What is total change in price of gas?

In a race of 1km, A beats B by 20m and B beats C by 50m, by how much does A beat C?

A milk man purhcases 30 litres of milk which contains milk and water in the ratio 7:3. How much water should be added to make the ration 3:7?

If Rs. 450 amounts to Rs. 540 in 4 years, what sum will amount to Rs. 637.50 in 5 years?

One side of rectangle is x inces. If the perimeter be P, what is the length of other side?

If \overline{X} = 29.5, \sum fx = 25a + 1620 and N = a + 54, a =

In the figure, which of the following must be true?

Ruled by one’s wife

Nothing but trees ___ seen.

He prefers going to school ___ foot.

Choose the correct antonym of ‘candid’

Choose the gramatically incorrect part: He is one of those brave men(A) who are (B) never afraid of(C) death. No error(D)

He is hard-up these days.

The word ‘cache’ means

Forensic examination of a dead body

The Alpha and Omegha

(A) Electron (i) No charge and unit mass

(B) Neutron (ii) Unit negative charge and unit mass

(C) Proton (iii) Unit negative charge and negligible mass

(D) Positron Unit positive charge and unit mass

(E) Antiproton Unit positive charge and negligible mass

Choose the gramatically incorrect part:
He is one of those brave men(A) who are (B) never afraid of(C) death. No error(D)

Complete the proverb:
“Absence makes the heat grow ___”.

You are required to rearrange these parts which are labeled P, Q, R and S to produce the correct sentence. Choose the correct sentence.
P: I decided to call on him.
Q: at the earliest opportunity
R: having heard of the plamist
S: before I came into town

Which combination of letters completes the given series
NRJ, PNP, RJV, ___

What is the missing letter?
E C O
B A B
G B N
D B ?