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+2 Science Entrance Exam

1 / 50

The speed of sound in humid air is V1 and that in dry air is V2. Then, at the same temperature:

a. V1 = V2

b. V1 > V2

c. V1 < V2

d. None

2 / 50

If  AB = C , then the order of matrices A, B and C are:

a. A3x3, B2x3,C2x3

b. A3x2, B2x3,C3x2

c. A3x3 ,B3x3 ,C3x2

d. A3x2, B2x3 ,C3x3

3 / 50

Will Mary be in time if she the ten o’clock bus?

a. get

b. got

c. gets

d. will get

4 / 50

Hirudinaria and Pheretima are the representatives of the   phylum:

a. Cnidaria

b. Platyhelminthes

c. Annelida

d. Arthropoda

5 / 50

A finely divided catalyst is more effective because in this state:

a. More energy is stored in the catalyst

b. Colloidal state is formed

c. More active centres are formed

d. More surface area is not available

6 / 50

Which of the following Era is also called “Age of Reptiles”?

a. Mesozoic

b. Coenozoic

c. Palaeozoic

d. All of these

7 / 50

The theory of continental drift assumes that there long term climatic changes in many areas during the past:

a. must have been

b. must have

c. must be

d. must

8 / 50

An animal having unsegmented, coelomated and radially    symmetrical body with distinct oral & aboral surfaces is a   member of:

a. Echinodermata

b. Mollusca

c. Annelida

d. Arthropoda

9 / 50

Sinu-atrial node is found in the:

a. Left ventricle

b. Left atrium

c. Right atrium

d. Right ventricle

10 / 50

L.P.G. consists of:

a. Methane & Ethane

b. Acetylene & Hydrogen

c. Butane & Iso-butane

d. Ethylene & carbon monoxide

11 / 50

Cell eating is called:

a. Exocytosis

b. Pinocytosis

c. Phagocytosis

d. Osmosis

12 / 50

If 2a-2b = 8 and 8a+b = 1, then a and b equal to:

a. 1, 1

b. 1, -1

c.-1, -1

d. -1, 1

13 / 50

Which of the following causes acceleration of heart beat during stress?

a. Adrenal gland

b. Corpus luteum

c. Thymus gland

d. Thyroid gland

14 / 50

15 / 50

On moving from the equator to the poles, the value of ‘g’:

a. Decreases

b. Increases

c. Remains the same

d. Decreases up to latitude 45°

16 / 50

The number of non-empty proper subsets of set (A = {1,2,3,4} is:

a. 16

b. 14

c. 15

d. 13

17 / 50

If f(x+1) = x + 2 , then f(x-1) =

a. 2

b. x+1

c. x

d. x-1

18 / 50

If mth  term of an AP is n and nth term is m, then rth term is:

a. m-n-r

b. m+n-r

c. m-n+r

d. n-r-m

19 / 50

What does CTRL + X in keyboard of a desktop stand for?

a. copy

b. cut

c. paste

d. undo

20 / 50

They aren't taking with them,

a. much luggage

b. many luggages

c. much luggages

d. slot of luggages

21 / 50

22 / 50

Lizards deliberately break their tail off to protect      themselves from predators. The phenomenon is called:

a. Morpholaxis

b. Autotomy

c. Regeneration

d. None of these

23 / 50

The population of a town 2 years ago was 40,000 and now is 44,100. What is growth rate?

a. 2%

b. 5%

c. 4%

d. 6%

24 / 50

The fastest mode of heat transfer is:

a. Conduction

b. Convection

c. Radiation

d. All of the above

25 / 50

26 / 50

Which of the following molecules does not exist?

a. NCl5

b. PF5

c. ClF5

d. SF6

27 / 50

The heating effect of atmosphere is due to:

a. Ultraviolet rays

b. Infrared rays

c. Carbon dioxide

d. Both b & c

28 / 50

Father of plant physiology is:      

a. M. Calvin

b. Stephan Hales

c. G. Mendel

d. Theophrastus

29 / 50

The smallest micro-organisms are:

a. Rickettsiae

b. Mycoplasma

c. Virus

d. Toxoplasma

30 / 50

The word ‘tepid’ means:

a. hot

b. like warm

c. cold

d. none

31 / 50

Your handwriting is ……

a. Eligible

b. Sensitive

c. Illegible

d. sensible

32 / 50

In DABC, if 2 cos A =sin B/sin C, then the D is:

a. Right angled triangle

b. Equilateral triangle

c. Isosceles triangle

d. Scalene triangle

33 / 50

34 / 50

 The peripheral nervous system in vertebrates consists of:

a. Cranial nerves alone

b. Cranial & spinal nerves

c. Spinal & sympathetic nerves

d. Sympathetic & parasympathetic nerves

35 / 50

Which number should replace the question mark?

17 8 5 5
13 7 5 4
6 12 6 3
10 6 4 ?

 

a. 4

b. 6

c. 5

d. 7

36 / 50

A person of ‘Nepotism’ is

a. Liberation

b. Opposition

c. Impartiality

d. Unpracticed

37 / 50

Max Planck introduced Quantum theory in 1901. According to this theory, photons are:

a. Massless bundle of energy

b. Continuous form of energy

c. Matters that emit light

d. Particles which are negatively charged

38 / 50

Companion cells are usually seen associated with:

a. Fibres

b. Parenchyma

c. Xylem vessels

d. Sieve tube

39 / 50

To plough the sand:

a. To make the desert bloom

b. To work in vain

c. To do a difficult work

d. To make the desert fertile

40 / 50

Pressure cooker reduces cooking time because:

a. The heat is more evenly distributed

b. The higher pressure tenderizes the food

c. The boiling point of water inside is elevated

d. Heat cannot escape

41 / 50

42 / 50

The electronic theory of valency was given by:

a. Dalton and Lavoiser

b. Rutherford

c. Kossel and Lewis

d. Guldberg & Waage

43 / 50

44 / 50

Two thermometers are constructed such that one has a spherical bulb and the other has an elongated cylindrical bulb. Which one will respond more quickly to temperature changes?

a. With cylindrical bulb

b. With spherical bulb

c. Both respond similarly

d. Any one

45 / 50

46 / 50

Who invented the stethoscope?

a. Einthoven

b. Hans Berger

c. R.T.H. Laenne

d. Landsteiner

47 / 50

Complete the proverb: "Dead me" no ……

a. Names

b. Truth

c. Tales

d. Lies

48 / 50

To meet one’s Waterloo (a) to die fighting (b) to die an ignoble death (c) to meet one’s final defeat (d) to meet a strong adversary. Choose the correct spelling

a. evanescent

b. evanescent

c. evanescent

d. evanescent

49 / 50

The image of P(3-a, 4-b)  when reflected along y-axis is P' (2a-5, b+2) . The value of a and b are:

a. 1, 2

b. 2, 2

c. 2, 1

d. 1, 1

50 / 50

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