Purkinje fibres are specialized ________.
- ((a))
cells in blood
- ((b))
neurons in the brain
- ((c))
cells in bone marrow
- ((d))
muscle fibres in the heart
Show Answer
cells in blood
100 questions · 90 minutes · with answers · free
Purkinje fibres are specialized ________.
cells in blood
neurons in the brain
cells in bone marrow
muscle fibres in the heart
cells in blood
Which of the following gases causes acid rain along with sulphur dioxide and carbon monoxide?
Hydrogen
Oxygen
Nitrogen oxides
Carbon dioxide
Hydrogen
Find the missing alphabet in the following series.
A, C, F, (…), O
M
J
P
R
M
What is the other name of Soccer?
Polo
Football
Hockey
Basketball
Polo
Citrus fruits are considered a rich source of ________.
Vitamin C
Vitamin D
Vitamin A
Vitamin B
Vitamin C
What was the purpose of 'Project arrow' in postal department started in the year 2008?
Enchancing the quality of services in mail delivery
All of the options
Focusing on money remittances and savings bank
Improvement in core operations of post offices
Enchancing the quality of services in mail delivery
At what rate percent will a sum of money double itself in 12 years?
8%
Three numbers in ratio 3 : 4 : 5 have the LCM 2400. What is the HCF?
40
200
80
120
40
If the first number and the second number is 25% and 50% more than the third number respectively, find the respective ratio between the first and the second number.
1 : 2
5 : 6
6 : 5
2 : 1
1 : 2
Complete the series.
2, 3, 7, 34, 50, (…)
184
193
175
163
184
Fix the symbols +, -, x, ÷ appropriately in the box to fit the equation given here.
100 □ 25 □ 5 □ 5 □ 21 = 0
-, ÷, ÷, x
÷, -, x, +
÷, +, x, -
÷, x, -, +
-, ÷, ÷, x
By whom was the modern periodic table given?
Mosley
Mendeleev
Einstein
Bohr
Mosley
During setting of plaster of Paris-
Mass is expanded
Both mass is expanded and heat is liberated
Heat is liberated
Combustion takes place
Mass is expanded
Complete the series.
5, 30, 25, 125, 120, 480, (…)
483
528
498
475
483
Who has the power to proclaim the state of emergency in India?
Vice-President
President
Prime Minister
Chief Justice of India
Vice-President
Find the ODD one out from the given options.
DC
CB
GF
EF
DC
If 'LBAEHC' is coded as 'BLEACH', then which of the following is coded as 'NBOLZKZK'?
BONKZLHM
BNOLKZMH
BNLOKZKZ
BOLNHMKZ
BONKZLHM
When was Sri Lanka's first satellite Raavana 1 launched into space from NASA's Flight Facility?
April 2019
March 2019
February 2019
May 2019
April 2019
A heterogeneous mixture in which the solute particles do not dissolve but remain suspended throughout the bulk of the medium is known as-
Saturated solution
Suspension
Unsaturated solution
Colloids
Saturated solution
Which of the following is a 'Surface to Air Missile'?
K-15 Sagarika
Brahmos
Trishul
Agni
K-15 Sagarika
The loss incurred in the sale of an article is equal to 60% of the selling price of the article. What is the actual loss per cent?
37.5%
28%
25%
40%
37.5%
Find the ODD fraction. 18/72, 24/96, 51/204, 108/432, 18/90
18/90
24/96
108/432
51/204
18/90
In this question, statements are given followed by two conclusions. Choose the conclusion(s) which best fit(s) logically.
Statements:
C > U ≤ S < T = O > D ≥ Y, Z = O ≤ P
Conclusions:
I. Z > Y
II. C < O
Only conclusion I is true
Only conclusion II is true
Either conclusion I or II is true
Both conclusions I and II are true
Only conclusion I is true
Read the following information carefully and answer the question given below.
Seven persons—L, M, N, O, P, Q and R like different colours—red, blue, white, pink, green, black and yellow, but not necessarily in the same order. They all have different hobbies (or they like different activities) shooting, travelling, dancing, gardening, hunting, painting and writing, but not necessarily in the same order. The hobby of O is shooting. The one whose hobby is gardening likes pink colour. L likes yellow colour. The one whose hobby is writing likes green colour. The hobby of Q is dancing. Neither O nor Q likes black colour. The one whose hobby is painting and travelling does not like black colour. The hobby of L is not travelling. The one whose hobby is travelling does not like red and white colour; O does not like red colour. The hobby of P is neither hunting nor gardening. P does not like green colour. R does not like green, blue and black colour. The hobby of M is not writing.
Which of the following is the hobby of P?
Hunting
Gardening
Writing
Travelling
Hunting
How many triangles are there in the given figure?

18
16
15
14
18
Which word will best complete the relationship given below?
Taj Mahal : India :: Petra : ?
Italy
Denmark
Colombia
Jordan
Italy
Arjun is a third-generation _________ developed by India's Defence Research and Development Organisation (DRDO), for the Indian Army.
Main battle tank
Jet fighter
Helicopter
Light combat aircraft
Main battle tank
In the given figure, the circle represents editors, triangle represents directors, and rectangle represents singers. Which region represents the persons who are editors and singers but not directors?

1
4
2
3
1
Convert into a vulgar fraction :
2437/9990
2413/9900
2413/9999
2437/9999
2437/9990
In a certain code, 'AWAKE' is written as 'ZVZJD'. How is 'FRIEND' written in that code?
EQHDMC
EQHMDC
EHQDMC
EQMHDC
EQHDMC
Simplify:
23
21
√21
17
23
If sin θ + sin2θ = 1, then find cos2θ + cos4θ.
-2
2
-1
1
-2
The number of atoms or molecules or ions present in one mole of a substance is called-
Normality
Avogadro number
Mass number
Atomic number
Normality
How much work is done in moving 2 Coulombs of charge across two points having a potential difference of 12 V?
6 Joule
18 Joule
24 Joule
12 Joule
6 Joule
Simplify : cosθ(1 – tanθ) + sin θ (1 – cotθ)
0
tanθ + cotθ
sinθ – cosθ
sinθ + cosθ
0
If the potential difference across the ends of a conductor is halved, what happens to the current flowing through it?
It gets increased
It gets doubled
It gets decreased
It gets halved
It gets increased
The mineral (ions) necessary for coagulation of blood is-
Sodium
Chlorine
Calcium
Potassium
Sodium
A man is standing on a platform which is 70 m long. A train crosses the platform in 5.5 seconds, but it crosses the man in 2 seconds. What is the length of the train?
60 m
40 m
80 m
45 m
60 m
How does a lubricant reduce friction between moving parts of a machine?
Lubricant tears the parts
The lubricant forms a thin film of surface between the moving parts so that they don't rub against each other directly
Lubricant makes the moving parts tight
Lubricant increases the material's irregularities
Lubricant tears the parts
A policeman left his police post and proceeded south 4 km. Then he turned left and proceeded 4 km to reach point B. From B, he proceeded left to reach another place C which is 4 km away. He has to go in which direction to reach his police post?
West
North
East
South
West
Which is the main source of almost all energy on Earth?
Sun
Moon
Water
Atmosphere
Sun
Which of the following is an olfactory indicator?
Phenolphthalein
Litmus paper
Red cabbage juice
Vanilla
Phenolphthalein
How is the refractive index of a material related to the speed of light in air?
Refractive index = Speed of light in air x Speed of light in material
Refractive index = Speed of light in material/ Speed of light in air
Refractive index = Speed of light in air/Speed of light in material
Refractive index = Speed of light in air +Speed of light in material
Refractive index = Speed of light in air x Speed of light in material
Find the missing group of alphabets in the following series.
A, CD, GHI, (…), UVWXY
MONP
MPNO
MNOP
LMNO
MONP
If 8(x + y)3 - (x - y)3 = (x + 3y) (Ax2 + Bxy + Cy2), then value of (A - B - C) is:
-2
14
-6
10
-2
The word aqueous (aq) is written if the reactant or product is present as a/an ________.
Concentrated solution
Solution in water
Isotonic solution
Solution in kerosene
Concentrated solution
What is the SI unit of electric current?
Coulomb (C)
Joule (J)
Ampere (A)
Volt (V)
Coulomb (C)
Asbestos is a mineral fibre that can pollute air or water and cause-
Mesothelioma, lung cancer and asbestosis
Mesothelioma
Asbestosis
Lung cancer
Mesothelioma, lung cancer and asbestosis
Which is the strongest bone in the human body?
Shin bone
Ankle
Thigh bone
Spinal cord
Shin bone
How much material is wasted when a solid cone of height 24 cm and radius 8 cm is recast into a solid cylinder of radius 6 cm and height 6 cm?
37.5%
52%
57.8%
64%
37.5%
Complete the series.
536, 268, 134, 67, (…)
33.5
35.2
34.6
31.4
33.5
A sum of money at 8% Simple Interest was placed in a deposit for 7 years. The matured the amount was then invested in a scheme offering 10% Compound Interest compounded annually,thereby procuring an interest of Rs.1638 in 2 years. What was the original sum?
Rs. 5000
Rs. 8000
Rs. 6200
Rs. 7500
Rs. 5000
In which Indian state is the greater part of the Desert located?
Haryana
Gujarat
Rajasthan
Punjab
Haryana
Which of the following is a waterborne disease?
Malaria
Influenza
Cholera
Small pox
Malaria
Simplify: of
125
120
100
102.5
125
What is the theme of 'National Girl Child Day', 2019?
Empowering girls for a brighter tomorrow
Let's bring change to the world
Bridging health and social care
Leave no one behind
Empowering girls for a brighter tomorrow
Due to which force does the moon move around the Earth in its near circular orbit?
Mechanical force
Centrifugal force
Friction force
Centripetal force
Mechanical force
"Theory of Natural selection" was proposed by -
Charles Huxley
Charles Darwin
Erasmus Darwin
Morgan
Charles Huxley
The sum of the ages of a father and son is 45. Six years ago, their ages were in the ratio 10 : 1.
How old will the son be after six years?
19
15
20
16
19
With which of the following sports is Santosh Trophy associated?
Football
Hockey
Badminton
Cricket
Football
6 men and 2 boys can do five times as much work as one man and one boy. Find the ratio of the working capacity of a man to that of a boy.
1 : 3
3 : 1
3 : 2
4 : 1
1 : 3
Arun went to a nearby city at a speed of 25 km/h and returned at 20 km/h. If the total time for the trip was 1 hour 48 minutes, what is the distance of his place from the city?
22 km
18 km
20 km
40 km
22 km
Oxides of non-metals are ________ in nature.
Basic
Both acidic and basic
Amphoteric
Acidic
Basic
If selling price of 'n' pens is the same as the cost price of 10 pens and there is a 100% gain, then find the value of 'n'.
6
10
8
5
6
What is the relation between the frequency v and the time period T of a sound wave?
v = T
v = 1 / T2
v = 1/T
v = 1 / √T
v = T
If ‘you are john’ is written as ‘net let fat’, ‘who are you’ is ‘let wet net’ and ‘john is good’ is ‘get set fat’, which represents ‘is’?
set
get
fat
cannot be determined
set
Two cars P and Q start from the opposite direction of 100 km apart. Car P reaches a distance of 30 km, and car Q reaches a distance of 25 km. What is the distance between the two cars?
35 km
55 km
45 km
25 km
35 km
If both object distance 'u' and image distance 'v' from a concave mirror is -20 cm and both object size and image size is 4 cm, then what is the radius of curvature 'R' of the mirror?
-18 cm
-15 cm
-10 cm
-20 cm
-18 cm
Simplify : 4 + 44 + 444 + 4444 + 44444
49280
49380
48384
49384
49280
Which of the following is essentially a solo dance?
Kathak
Manipuri
Mohiniyattam
Kuchipudi
Kathak
Find tan 75°, by splitting 75° as (45° + 30° ).
2 + √3
2√3 + 1
2√3 – 1
2 + √3
P and Q can complete a job in 12 days and 16 days respectively. They work together for 4 days. What portion of work is left for completion?
3/4
6/7
5/12
7/12
3/4
Daughter's age is one-fourth of her father's age. Five years hence, she will be one-third of his age. Further after five years, what will be the ratio of her age to that of her father?
5 : 2
3 : 4
2 : 5
3 : 5
5 : 2
In this question, two statements are given followed by two conclusions. Choose the
conclusion(s) which best fit(s) logically.
Statements:
Some trucks are bikes.
Some bikes are scooters.
Conclusions:
I. Some trucks are scooters.
II. All bikes are scooters.
Only conclusion I follows
Only conclusion II follows
Both conclusions I and II follow
Neither conclusion I nor II follows
Only conclusion I follows
Which of these numbers is a multiple of 24?
63810
31256
53784
35718
63810
Which organisms cause infectious diseases?
Worms
Viruses
All of the options
Protozoa
Worms
The greatest quantity of air that can be expelled after a maximum inspiratory effect is-
Tidal volume
Lung volume
Vital volume
Residual volume
Tidal volume
Simplify :
1/3
2/9
2/3
1/9
1/3
In this question, a statement is given followed by two conclusions. Choose the conclusion(s) which best fit(s) logically.
Statement:
The minimum qualification for a job is graduation. However, candidates who have appeared for the final year of graduation may also apply.
Conclusions:
I. Some candidates who have yet to graduate can be there in the list of selected candidates.
II. Some candidates having graduation as their minimum qualification can be there in the list of selected candidates.
Both conclusions I and II follow
Only conclusion II follows
Only conclusion I follows
Neither conclusion I nor II follows
Both conclusions I and II follow
During a chemical reaction, atomic number _________.
Changes with volume
Remains the same
Changes
Changes with temperature
Changes with volume
Which of the following gases turns limewater milky?
Oxygen
Hydrogen
Both oxygen and carbon dioxide
Carbon dioxide
Oxygen
Find the ODD one out from the given options.
BY
EV
CW
AZ
BY
A hemispherical metallic solid is melted and recast into a cone of equal radius 'R'. If the height of the cone is H, then:
H = R/3
H = 2R
H = R
H = R/2
H = R/3
Find the ODD one out from the given options.
176
168
154
198
176
What is a sponge in biology?
A plant
A fungus
An animal
A fossil
A plant
P and Q can do a work in 12 days and 16 days respectively. P started work alone. After how many days should Q join P, so that the work is finished in 9 days?
4
2
3
5
4
Which of the following will best complete the relationship given below?
TEF : UGH :: KPQ : ?
LSR
RSL
NRS
LRS
LSR
Reduce to lowest terms 368/575.
30/25
16/25
28/29
25/29
30/25
Which of the following group of alphabets will best complete the relationship given below?
DFI : MOR :: LNQ : ?
UWX
TUW
UWZ
UWY
UWX
Find the difference between the selling prices of two articles sold at 12.5% profit and 12.5% loss, if the cost price is Rs.400 each.
Rs. 120
Rs. 100
Rs. 80
Rs. 140
Rs. 120
With which sport is Narain Karthikeyan associated?
Squash
Golf
Tennis
Auto racing
Squash
Who among the following was popularly known as the ‘Frontier Gandhi?'
Asfandyar Wali Khan
Muhammad Ali Jinnah
Abdul Ghaffar Khan
Maulana Abul Kalam Azad
Asfandyar Wali Khan
Which vaccine is used for the prevention of Tuberculosis?
AMG
BCG
CSD
ABC
AMG
Complete the series.
55, 59, 65, 73, 83, 95, 109, (…)
125
129
136
138
125
Which of the following is NOT a routine session of the Indian Parliament?
Summer Session
Budget Session
Winter Session
Monsoon Session
Summer Session
A cylinder having base radius equal to its height, right circular cone whose radius is equal to its height and a hemisphere are given. All of them have the same volumes. What will be the ratio of their respective radius?
In which of the following places is Malampuzha dam located?
Chandigarh
Palakkad
Pune
Papanasam
Chandigarh
Read the following information carefully and answer the question given below.
Eight friends—J, K, L, M, N, O, P and Q are sitting around a circle facing the center. J is second to the right of P who is third to the right of K. M is second to the left of O who sits between P and J. L is not a neighbour of K or N.
Which of the following groups of persons have the first person sitting between the other two?
PJO
OPM
MPO
OPJ
PJO
If α and β are the roots of equation x2 – 2x + 4 = 0, then what is the equation whose roots are α3/β2 and β3/α2?
x2 – 4x + 8 = 0
x2 – 32x + 4 = 0
x2 - 2x + 4 = 0
x2 – 16x + 4 = 0
x2 – 4x + 8 = 0
As we move down a group of the periodic table, the electron affinity-
Increases and then decreases
Remains the same
Decreases
Increases
Increases and then decreases
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