CSS Everyday Science Mock Test 1

If A=Ax i^ + Ay j^ + Az K^ B = Bx i^ + By j^ + Bz K^ then______________?

1 Mark(s)

Your Answer:

A. B = Ax Bx + Ay By + Az Bz A. B = Ax Bx + Ay By + Az Bz
A. B = Ax By + Ay Bz + Az By A. B = Ax By + Ay Bz + Az By
A. B = Ay Bz + Az By + Az Bx A. B = Ay Bz + Az By + Az Bx
A. B = Ax Bz + Ay By + Az Bx A. B = Ax Bz + Ay By + Az Bx

The J-shaped structure located beneath the diaphragm in the left of the abdomen is classified as:

1 Mark(s)

Your Answer:

liver liver
lungs lungs
kidneys kidneys
stomach stomach

The vector A= 2i^+2j^ makes_______ angle with x-axis.?

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Your Answer:

30° 30°
45° 45°
60° 60°
90° 90°

Parapodia segment modified into fans___________?

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Your Answer:

14 through 16 14 through 16
15 through 17 15 through 17
14 through 19 14 through 19
16 through 20 16 through 20

Cyanobacteria reserve food material is__________?

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Your Answer:

glycogen glycogen
phosphorus phosphorus
glucose glucose
fractose fractose

When an atom of iodine becomes an iodine ion (I – ) the radius will

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Your Answer:

A) decrease A) decrease
B) increase B) increase
C) remain the same C) remain the same
D) none D) none

The female gamete in plants is located in:

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Your Answer:

Pollen Pollen
Anther Anther
Stamen Stamen
Ovule Ovule

Xylem transports:

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Your Answer:

Water and minerals Water and minerals
Food Food
Hormones only Hormones only
Oxygen Oxygen

Two rods of same length and material are joined end to end. If heat flows through them, they are in:

1 Mark(s)

Your Answer:

Series Series
Parallel Parallel
Mixed Mixed
Option 4 Option 4

The phosphate present in sewage water which cause eutrophication Can be removed by adding:

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Your Answer:

Alum Alum
Chlorine Chlorine
Lime Lime
permangnate permangnate

During the swallowing of food ____?

1 Mark(s)

Your Answer:

The epiglottis opens The epiglottis opens
The glottis closes The glottis closes
The trachea dilates The trachea dilates
The epiglottis closes The epiglottis closes

Cyanobacteria flagella is__________?

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Your Answer:

small small
large large
short short
absent absent

Which of the following produces black spots when it comes in contact with organic substances such as skin and cellulose?

1 Mark(s)

Your Answer:

CuSO4 CuSO4
AgNO3 AgNO3
K2MnO4 K2MnO4
CH3COOH CH3COOH

Sodium-potassium pump maintains:

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Your Answer:

Equal distribution Equal distribution
Passive diffusion Passive diffusion
Osmotic balance Osmotic balance
Ion concentration gradient Ion concentration gradient

The second U-shaped portion of the renal tubule of the kidney is called:

1 Mark(s)

Your Answer:

loop of bowman's capsule loop of bowman's capsule
loop of glomerulus loop of glomerulus
loop of Henle loop of Henle
loop of proximal loop of proximal

Which of the following is not true about alkanes?

1 Mark(s)

Your Answer:

they are non-polar they are non-polar
they are less dense than water they are less dense than water
they are insoluble in water they are insoluble in water
they are reactive towards most ionic compounds

Agar agar is obtain from__________?

1 Mark(s)

Your Answer:

gelidium gelidium
chlorella chlorella
chara plant chara plant
laxative laxative

What is the magnetic field at any point in the open space inside the toroid?

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Your Answer:

zero zero
one one
Depends on the current in the turns Depends on the current in the turns
Depends on number of turns Depends on number of turns

A ______ is an inclined plane wrapped around a cylinder, used to fasten objects.

1 Mark(s)

Your Answer:

Screw Screw
Lever Lever
Pulley Pulley
Wheel Wheel

A constant retarding force of 50N is applied to a body of mass 20kg moving initially with a speed of 15m/s. How long does the body take to stop?

1 Mark(s)

Your Answer:

$6 s$ $6 s$
$5 s$ $5 s$
$10 s$ $10 s$
$3 s$ $3 s$

Digestive system consists__________?

1 Mark(s)

Your Answer:

Mouth Mouth
Stomach Stomach
Intestine Intestine
All of these All of these

What is the source of chlorofluorocarbons?

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Your Answer:

aerosol sprays foams aerosol sprays foams
exhaust fumes of motor vehicles exhaust fumes of motor vehicles
incomplete burning of wood incomplete burning of wood
none of above none of above

Among the following species, which one can function as both a Bronsted acid and a Bronsted base?

1 Mark(s)

Your Answer:

H2SO4 H2SO4
OH- OH-
HSO-4 HSO-4
NH3 NH3

In the binomial nomenclature, the second name represents:

1 Mark(s)

Your Answer:

species species
order order
kingdom kingdom
class class

ABO blood groups:

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Your Answer:

Rh factor Rh factor
Surface antigens Surface antigens
Rh Rh
Antibodies Antibodies

DNA replication is said to be__________?

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Your Answer:

semiconservative semiconservative
conservative conservative
anticonservative anticonservative
paralle condition paralle condition

The ultraviolet rays in the radiations of the sun are absorbed by:

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Your Answer:

troposphere troposphere
thermosphere thermosphere
stratosphere stratosphere
ozone ozone

Molecularity is:

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Your Answer:

Overall reaction order Overall reaction order
Molecules in elementary step Molecules in elementary step
Number of products Number of products
Number of reactants Number of reactants

To measure temperature especially in ovens and furnaces, we use:

1 Mark(s)

Your Answer:

laser thermometers laser thermometers
alcohol thermometers alcohol thermometers
mercury-in-glass thermometers mercury-in-glass thermometers
bimetal thermometers bimetal thermometers

The enzyme that catalyzes transcription of mRNA in eukaryotes is:

1 Mark(s)

Your Answer:

RNA Polymerase I RNA Polymerase I
RNA Polymerase II RNA Polymerase II
RNA Polymerase III RNA Polymerase III
DNA Polymerase DNA Polymerase

The scientist who proposed that microbial activity is the cause of all fermentations is:

1 Mark(s)

Your Answer:

Ibn al Haithem Ibn al Haithem
Gregor Mendel Gregor Mendel
Louis Pasteur Louis Pasteur
Ian Wilmot Ian Wilmot

Methanol can be obtained from_________________?

1 Mark(s)

Your Answer:

water gas water gas
destructive distillation of wood destructive distillation of wood
methane methane
all all

The material that is unable to filter through glomerulus capillaries is blood cells and:

1 Mark(s)

Your Answer:

lipids lipids
starch starch
proteins proteins
fats fats

The rate of flow of charge at certain point is called ____?

1 Mark(s)

Your Answer:

Voltage Voltage
Electric Current Electric Current
Resistance Resistance
Power Power

Which compound has highest covalent character?

1 Mark(s)

Your Answer:

$\ce{AlCl3}$ $\ce{AlCl3}$
$\ce{NaCl}$ $\ce{NaCl}$
$\ce{KCl}$ $\ce{KCl}$
$\ce{MgCl2}$ $\ce{MgCl2}$

Which of the following is used in the manufacture of fertilizers and explosives?

1 Mark(s)

Your Answer:

hydrochloric acid hydrochloric acid
nitric acid nitric acid
sulphuric acid sulphuric acid
phosphoric acid phosphoric acid

In Fahrenheit scale the boiling point of water is ______?

1 Mark(s)

Your Answer:

208°F 208°F
210°F 210°F
212°F 212°F
214°F 214°F

Frogs and toads comprise of order__________?

1 Mark(s)

Your Answer:

Caudata Caudata
Anura Anura
Gymnophiona Gymnophiona
All of these All of these

In the fetal and embryonic life, the red blood cells are formed in:

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Your Answer:

spleen and liver spleen and liver
liver and kidneys liver and kidneys
kidneys and lungs kidneys and lungs
pancreas and liver pancreas and liver

A resistor having resistance 6.2Ω is connected across a battery of 5 V using a wire of negotiable resistance. Current passes through the resistor are 0.4 A. The power dissipated in the resistor is:

1 Mark(s)

Your Answer:

0.72 W 0.72 W
1.5 W 1.5 W
0.99 W 0.99 W
3 W 3 W

Permanent tissues are formed from

1 Mark(s)

Your Answer:

A) dead cells A) dead cells
B) meristematic tissue B) meristematic tissue
C) xylem C) xylem
D) phloem D) phloem

20th years ago black rhino estimated at__________?

1 Mark(s)

Your Answer:

65000 65000
55000 55000
7000 7000
8000 8000

Which RNA carries the amino acids from the amino acid pool to mRnA during protein synthesis ?

1 Mark(s)

Your Answer:

A) rRNA A) rRNA
B) mRNA B) mRNA
C) /RNA C) /RNA
D) hnRNA D) hnRNA

The OR operation can be represented as:

1 Mark(s)

Your Answer:

X = A + B X = A + B
X = A x B X = A x B
X = A - B X = A - B
X = A ⁄ B X = A ⁄ B

Carboxylic acids form dimers due to:

1 Mark(s)

Your Answer:

H-bonding H-bonding
Van der Waals Van der Waals
Covalent bonds Covalent bonds
Ionic bonds Ionic bonds

The angular speed of seconds hand of a watch in rads-1 is______________?

1 Mark(s)

Your Answer:

π π
π/2 π/2
π/30 π/30
π/180 π/180

The exchange of gases in tissues occurs by:

1 Mark(s)

Your Answer:

Active transport Active transport
Diffusion Diffusion
Osmosis Osmosis
Filtration Filtration

A localized group of organisms that belong to the same species is called a ____?

1 Mark(s)

Your Answer:

Biosphere Biosphere
Community Community
Ecosystem Ecosystem
Population Population

Which forest is depleting rapidly for agriculture production___________?

1 Mark(s)

Your Answer:

tropical rain forest tropical rain forest
subtropical forest subtropical forest
alpine forest alpine forest
tropical thorn forest tropical thorn forest

Chemoreceptors respond to__________?

1 Mark(s)

Your Answer:

Signals Signals
Chemicals Chemicals
Pressure Pressure
Air Air

In a transverse wave, particles oscillate:

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Your Answer:

Parallel to propagation Parallel to propagation
Perpendicular to propagation Perpendicular to propagation
In circles In circles
No oscillation No oscillation

According to Darwin, variations are:

1 Mark(s)

Your Answer:

Directed Directed
Acquired Acquired
Useless Useless
Random and heritable Random and heritable

If a person sitting on a rotating chair stretches his arms, the angular speed:

1 Mark(s)

Your Answer:

Increases Increases
Decreases Decreases
Remains same Remains same
Becomes zero Becomes zero

Which of the following hormone speeds up the growth in adolescence?

1 Mark(s)

Your Answer:

Thymosine Thymosine
ACTH ACTH
Insulin Insulin
Somatotrophin Somatotrophin

Which of the following liquids is used in the clinical thermometer?

1 Mark(s)

Your Answer:

Water Water
Alcohol Alcohol
Mercury Mercury
Oxygen Oxygen

Identify the correct statement regarding CO_______________?

1 Mark(s)

Your Answer:

it combines with H2O to form carbonic acid
it reacts with red blood cells of haemoglobin
it is powerful oxidizing agent it is powerful oxidizing agent
it is used to prepare aerated drinks it is used to prepare aerated drinks

Which substance is the most alkaline?

1 Mark(s)

Your Answer:

Milk Milk
Blood Blood
Ammonia Ammonia
Organic juice Organic juice

Evaluating Your Answers

CSS Everyday Science Mock Test 1 : Question 1 of 57