ECAT Mock Test 3 - Online MCQ Exam

The atomicity of K 2 CO 3 is:

1 Mark(s)

Your Answer:

A) 2 A) 2
B) 4 B) 4
C) 6 C) 6
D) 8 D) 8

Brass get discoloured in air due to constant exposure in presence of:?

1 Mark(s)

Your Answer:

Hydrogen sulphide Hydrogen sulphide
Aluminium sulphide Aluminium sulphide
Aluminium Phosphide Aluminium Phosphide
Hydrogenated wafers Answer Hydrogenated wafers Answer

The least count of physical balance is:

1 Mark(s)

Your Answer:

0.001 g 0.001 g
0.0001 g 0.0001 g
0.01 g 0.01 g
1 g 1 g

A sum is divided among A, B, and C in ratio \$3:4:5$. If B gets $₹2000$ more than A, find the total sum.

1 Mark(s)

Your Answer:

₹20000 ₹20000
₹22000 ₹22000
₹24000 ₹24000
₹26000 ₹26000

The man _________ you met is an anchorperson.

1 Mark(s)

Your Answer:

who who
whose whose
whom whom
which which

If an apple is taken to the mountain top then its weight is:

1 Mark(s)

Your Answer:

decreased decreased
increased increased
constant constant
infinite infinite

Choose analogous pair: Vaseline : Petrol

1 Mark(s)

Your Answer:

Tea : Leaves Tea : Leaves
Plant : Tree Plant : Tree
Butter : Ghee Butter : Ghee
Cream : Milk Cream : Milk

What is the probability of getting an even number when a dice is thrown?

1 Mark(s)

Your Answer:

1/6 1/6
1/2 1/2
1/3 1/3
1/4 1/4

If the length of diagonal AC of a square ABCD is 5.2 cm then area of the square ABCD is_________?

1 Mark(s)

Your Answer:

15.12 sq.cm 15.12 sq.cm
13.52 sq.cm 13.52 sq.cm
12.62 sq.cm 12.62 sq.cm
10 sq.cm 10 sq.cm

Surface water contains:_____________?

1 Mark(s)

Your Answer:

only salt only salt
Organic matter Organic matter
Salt & Organic matter Salt & Organic matter
Suspended impurity Suspended impurity

Which shows maximum inert pair effect?

1 Mark(s)

Your Answer:

B B
Al Al
Ga Ga
Tl Tl

Which of the following reagents will react with both aldehydes and ketones ?

1 Mark(s)

Your Answer:

Grignard reagent Grignard reagent
Tollens reagent Tollens reagent
Fehlings reagent Fehlings reagent
Benedicts reagent Benedicts reagent

(-2) 6 × (-3) 2 is equal to:

1 Mark(s)

Your Answer:

A) 144 A) 144
B) -144 B) -144
C) 36 C) 36
D) -36 D) -36

At what temperature is the RMS speed of an atom in an Argon gas cylinder equal to the RMS speed of a Helium gas atom at $-20^\circ C$? ($M_{Ar} = 40, M_{He} = 4$).

1 Mark(s)

Your Answer:

$253 K$ $253 K$
$2530 K$ $2530 K$
$25.3 K$ $25.3 K$
$1000 K$ $1000 K$

By evaluating the following 170 - (+40) + (-50) +5 - (+20), the answer will be:

1 Mark(s)

Your Answer:

−85 −85
65 65
85 85
−65 −65

Which scientist is associated with the 'Exclusion Principle'?

1 Mark(s)

Your Answer:

Wolfgang Pauli Wolfgang Pauli
Niels Bohr Niels Bohr
De Broglie De Broglie
Max Planck Max Planck

At 10 a.m. two trains started traveling toward each other from stations 287 miles apart. They passed each other at 1:30 p.m. the same day. If the average speed of the faster train exceeded the average speed of the slower train by 6 miles per hour, which of the following represents the speed of the faster train, in miles per hour?

1 Mark(s)

Your Answer:

38 38
40 40
44 44
48 48

Light of wavelength $\lambda$ falls on a slit of width $a$. The value of $a$ for which the first maximum falls at angle $30^\circ$ is:

1 Mark(s)

Your Answer:

$3\lambda$ $3\lambda$
$2\lambda$ $2\lambda$
$1.5\lambda$ $1.5\lambda$
$2.5\lambda$ $2.5\lambda$

Waves is related to Air in the same way as Ripples is related to?

1 Mark(s)

Your Answer:

Wind Wind
Water Water
Storm Storm
Smoke Smoke

The muslims always beg . . . . . . . . Allah's help.

1 Mark(s)

Your Answer:

of of
by by
to to
for for

P can do a work in 24 days. Q can do the same work in 9 days and R can do the same in 12 days. Q and R start the work and leave after 3 days. P finishes the remaining work in_________days.

1 Mark(s)

Your Answer:

10 10
9 9
11 11
12 12

The same considerations are equally applicable ______ accident claims?

1 Mark(s)

Your Answer:

to to
in in
on on
of of

The Sun_________From Behinds The Clouds.

1 Mark(s)

Your Answer:

Immerse Immerse
Emerged Emerged
Imerged Imerged
None Of These None Of These

In stainless steel alloy, iron metal is mixed with:

1 Mark(s)

Your Answer:

A) Cu and Cr A) Cu and Cr
B) Cr and Ni B) Cr and Ni
C) Cr and Sn C) Cr and Sn
D) Cu and Ni D) Cu and Ni

A negative charge:

1 Mark(s)

Your Answer:

repels neutral charge repels neutral charge
attracts neutral charge attracts neutral charge
repels negative charge repels negative charge
repel positive charge repel positive charge

Number of significant figures in 0.00250:

1 Mark(s)

Your Answer:

2 2
3 3
4 4
5 5

Synonym of ” Boulevard ” is _____________?

1 Mark(s)

Your Answer:

Vortex Vortex
Turbulence Turbulence
Avenue Avenue
Whirlpool Whirlpool

People P : at his dispensary Q : went to him R : of all professions S : for medicine and treatment The Proper sequence should be:

1 Mark(s)

Your Answer:

QPRS QPRS
RPQS RPQS
RQSP RQSP
QRPS QRPS

Present opposing arguments or evidence

1 Mark(s)

Your Answer:

Criticise Criticise
Rebuff Rebuff
Reprimand Reprimand
Rebut Rebut

S1: Forecasting the weather has always been a difficult business. P : During a period of drought, streams and rivers dried up, the cattle died from thirst and were ruined. Q : Many different things affect the weather and we have to study them carefully to make accurate forecast. R : Ancient Egyptians had no need of weather in the Nile Valley hardly ever changes. S : In early times, when there were no instruments, such as thermometer or the barometer, man looked for tell-tale signs in the sky. S6: He made his forecasts by watching flights of the birds or the way smoke rose from fire. The Proper sequence should be:

1 Mark(s)

Your Answer:

PRQS PRQS
QPRS QPRS
QRPS QRPS
SPQR SPQR

The sum of five consecutive even numbers of set x is 440. Find the sum of a different set of five consecutive integers whose second least number is 121 less than double the least number of set x?

1 Mark(s)

Your Answer:

248 248
240 240
228 228
236 236
None of these None of these

There would be 10% loss if rice is sold at Rs. 5.40 per kg. At what price per kg should it be sold to earn a profit of 20%

1 Mark(s)

Your Answer:

Rs. 6 Rs. 6
Rs. 6.48 Rs. 6.48
Rs. 7.02 Rs. 7.02
Rs. 7.20 Rs. 7.20

Waves emitted from the antenna are__________________?

1 Mark(s)

Your Answer:

Sound waves Sound waves
Electromagnetic waves Electromagnetic waves
Radio waves Radio waves
Modulated waves Modulated waves

An equation involving expression under the radical sign is known as:

1 Mark(s)

Your Answer:

linear equation linear equation
radical equation radical equation
quadratic equation quadratic equation
complex equation complex equation

Let us travel . . . . . . . . night, it will be cool then.

1 Mark(s)

Your Answer:

by by
at at
in in
during during

The petrol having octane number 80 has ____________?

1 Mark(s)

Your Answer:

20% n- heptane + 80% iso-octane 20% n- heptane + 80% iso-octane
80% n- heptane + 20% iso-octane 80% n- heptane + 20% iso-octane
20% n- heptane + 80% n-octane 20% n- heptane + 80% n-octane
80% n-heptane + 20% n- octane 80% n-heptane + 20% n- octane

A student while observing the properties of acetic acid would report that this smells like

1 Mark(s)

Your Answer:

A) vinegar and turns red litmus blue A) vinegar and turns red litmus blue
B) rotten egg and turns red litmus blue B) rotten egg and turns red litmus blue
C) vinegar and turns blue litmus red C) vinegar and turns blue litmus red
D) rotten egg and turns blue litmus red D) rotten egg and turns blue litmus red

I have read one novel by Premchand. I want to read ...... novel by him.

1 Mark(s)

Your Answer:

other other
another another
all all
few few

9 $\frac{1}{10}$ $\frac{10}{100}$ + 3 $\frac{4}{10}$ $\frac{5}{100}$ = ?

1 Mark(s)

Your Answer:

A) 36 $\frac{65}{100}$ A) 36 $\frac{65}{100}$
B) 17 $\frac{35}{100}$ B) 17 $\frac{35}{100}$
C) 12 $\frac{65}{100}$ C) 12 $\frac{65}{100}$
D) 12 $\frac{56}{100}$ (\frac{65}{100}\)

A library has an average of 510 visitors on Sunday and 240 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is___________?

1 Mark(s)

Your Answer:

250 250
276 276
280 280
285 285

We congratulate you ____ your achievement.

1 Mark(s)

Your Answer:

for for
to to
on on
at at

Food prices have been ______ steadily for at least two years.

1 Mark(s)

Your Answer:

raising raising
rising rising
growing growing
lifting lifting

A capillary tube of insufficient length is dipped in water. The water:

1 Mark(s)

Your Answer:

Overflows Overflows
Does not rise Does not rise
Rises to top and radius increases Rises to top and radius increases
Rises and forms flat surface Rises and forms flat surface

If a man walks at 6 kmph, he can reach his destination at 9:00 am. However, he walks a little slower and reaches only at 10:00 am. If the distance to his destination was 12 km, at what speed did he walk?

1 Mark(s)

Your Answer:

5 kmph 5 kmph
4 kmph 4 kmph
4.5 kmph 4.5 kmph
3 kmph 3 kmph

Hydrocarbon is formed when Grignard reagent is treated with___________?

1 Mark(s)

Your Answer:

H2O H2O
CH3OH CH3OH
Both a and b Both a and b
None of the above None of the above

CULPABLE

1 Mark(s)

Your Answer:

Defendable Defendable
Blameless Blameless
Careless Careless
Irresponsible Irresponsible

Jesus is related to Christians in the same way as Zoroaster is related to?

1 Mark(s)

Your Answer:

Jews Jews
Parsis Parsis
Tribals Tribals
Catholics Catholics

The activation energy in a chemical reaction is defined as

1 Mark(s)

Your Answer:

A) the difference in energies of reactants and products
B) the sum of energies of reactants and products
C) the difference in energy of intermediate complex with the average energy of reactants and products
D) the difference in energy of intermediate complex and the average energy of reactants

The triangle which consists of three equal sides is classified as:

1 Mark(s)

Your Answer:

exterior angle exterior angle
equilateral triangle equilateral triangle
isosceles triangle isosceles triangle
scalene triangle scalene triangle

What does agonise me most is not this criticism, but the trivial reason behind it.

1 Mark(s)

Your Answer:

most agonising me most agonising me
agonises me most agonises me most
agonising me most agonising me most
I most agonised I most agonised
No correction required No correction required

If you are facing South and turn through a straight angle in which direction will you face now?

1 Mark(s)

Your Answer:

A) South A) South
B) North B) North
C) East C) East
D) West D) West

During an encounter with an atom alpha particle knocks out ______________?

1 Mark(s)

Your Answer:

Protons Protons
Electrons Electrons
Neutrons Neutrons
Nothing Nothing

Which of the following has reddish brown colour?

1 Mark(s)

Your Answer:

A) Gold A) Gold
B) Copper B) Copper
C) Iron C) Iron
D) Brass D) Brass

There are four prime numbers written in ascending order of magnitude. The product of the first three is 7429 and of the last three is 12673. Find the fourth number?

1 Mark(s)

Your Answer:

17 17
29 29
23 23
31 31

A force acting on a body of mass 7 kg produces an acceleration of 10 ms−2. The acceleration that the same force will produce in a body of mass 9 kg will be:

1 Mark(s)

Your Answer:

5 ms−2 5 ms−2
6 ms−2 6 ms−2
6.5 ms−2 6.5 ms−2
7.7 ms−2 7.7 ms−2

The branch of chemistry which deals with a substance containing carbon is called:

1 Mark(s)

Your Answer:

carbon chemistry carbon chemistry
inorganic chemistry inorganic chemistry
organic chemistry organic chemistry
environmental chemistry environmental chemistry

Meaning of words and how to use them is called?

1 Mark(s)

Your Answer:

Syntax Syntax
Semantics Semantics
Pragmatics Pragmatics
IPA IPA

Choose analogous pair: Pulp : Paper

1 Mark(s)

Your Answer:

Rope : Hemp Rope : Hemp
Rayon : Cellulose Rayon : Cellulose
Thread : Needle Thread : Needle
Yarn : Fabric Yarn : Fabric

Liquid crystal is discovered by __________________?

1 Mark(s)

Your Answer:

William Crooks William Crooks
Fredrack Reinitzer Fredrack Reinitzer
J.J Thomson J.J Thomson
Bravis Bravis

If 2, x, 8 are in continued proportional, then value of x should be:

1 Mark(s)

Your Answer:

±2 ±2
±4 ±4
2 2
4 4

Considering the inequality, the (8)² is:

1 Mark(s)

Your Answer:

< (-5)² < (-5)²
< (-4)² < (-4)²
< (-6)² < (-6)²
< (-9)² < (-9)²

ADC circuit converts:

1 Mark(s)

Your Answer:

digital to analogue signals digital to analogue signals
analogue to digital signals analogue to digital signals
radio signals to analogue signals radio signals to analogue signals
digital to discrete signals digital to discrete signals

Departing from an accepted standard is called?

1 Mark(s)

Your Answer:

Aberrant Aberrant
Avoid Avoid
Attract Attract
None of the above None of the above

Ozone is:

1 Mark(s)

Your Answer:

$\ce{O2}$ $\ce{O2}$
$\ce{O4}$ $\ce{O4}$
$\ce{O3}$ $\ce{O3}$
$\ce{O}$ $\ce{O}$

Choose analogous pair: Vandalism : Property

1 Mark(s)

Your Answer:

Perjury : Testimony Perjury : Testimony
Embezzlement : Fraud Embezzlement : Fraud
Implication : Crime Implication : Crime
Testify : Reputation Testify : Reputation

The acceleration that is produced by a 15N force in a mass of 8 kg will be equal to:

1 Mark(s)

Your Answer:

1.5 ms−2 1.5 ms−2
1.87 ms−2 1.87 ms−2
2.35 ms−2 2.35 ms−2
2 ms−2 2 ms−2

The substances that get attracted towards a magnet are called substances

1 Mark(s)

Your Answer:

A) Magnetic A) Magnetic
B) Non magnetic B) Non magnetic
C) Transparent C) Transparent
D) Luminous D) Luminous

When we walk or run, to push the ground backward we need:

1 Mark(s)

Your Answer:

inertia inertia
position position
friction friction
velocity velocity

When light passes through a prism it deviates from its original path because of:

1 Mark(s)

Your Answer:

reflection reflection
refraction refraction
defraction defraction
acoustics acoustics

Evaluating Your Answers

ECAT Mock Test 3 : Question 1 of 69