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Q676
#676
Geography → Climatology, Atmosphere and Weather → Atmospheric Layers, Composition and Aurora
·
Moderate
Add
Which one of the following statements about temperature is correct?
Playbook: Climatology, Atmosphere and Weather
A
Temperature decreases with height in the stratosphere.
B
Temperature is constant at different heights in the stratosphere.
C
Temperature increases with height in the troposphere at an average rate of 6·5 °C per kilometre.
D
Temperature decreases with height in the troposphere at an average rate of 6·4 °C per kilometre.
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[Q76 · Sep · 2018]
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Q677
#677
Geography → Oceanography → Ocean Waves and Sea-Floor Topography
·
Moderate
Add
Which one of the following is known as a zone of sharp salinity change in the vertical section of ocean?
Playbook: Oceanography
A
Thermocline
B
Halocline
C
Photic zone
D
Pycnocline
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[Q77 · Sep · 2018]
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Q678
#678
Chemistry → Hydrogen and Water → Hardness and Purity of Water
·
Moderate
Add
Permanent hardness of water
cannot
\textbf{\text{cannot}}
cannot
be removed by which one of the following methods?
Playbook: Hydrogen and Water
A
Treatment with washing soda
B
Calgon's method
C
Boiling
D
Ion exchange method
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[Q78 · Sep · 2018]
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Q679
#679
Chemistry → Acids, Bases and Salts → Common Acids: Names, Formulas and Uses
·
Moderate
Add
Which one of the following reactions will give NO (nitric oxide) gas as one of the products?
Playbook: Acids, Bases and Salts
A
3
Cu
+
8
HNO
3
(dilute)
→
3\text{Cu} + 8\text{HNO}_3\text{ (dilute)} \rightarrow
3
Cu
+
8
HNO
3
(dilute)
→
B
Cu
+
4
HNO
3
(conc.)
→
\text{Cu} + 4\text{HNO}_3\text{ (conc.)} \rightarrow
Cu
+
4
HNO
3
(conc.)
→
C
4
Zn
+
10
HNO
3
(dilute)
→
4\text{Zn} + 10\text{HNO}_3\text{ (dilute)} \rightarrow
4
Zn
+
10
HNO
3
(dilute)
→
D
Zn
+
4
HNO
3
(conc.)
→
\text{Zn} + 4\text{HNO}_3\text{ (conc.)} \rightarrow
Zn
+
4
HNO
3
(conc.)
→
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[Q79 · Sep · 2018]
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Q680
#680
Chemistry → Acids, Bases and Salts → Acid-Base Theory: Concepts, Oxides and Electrolytes
·
Easy
Add
Which one of the following is a tribasic acid?
Playbook: Acids, Bases and Salts
A
Hydrochloric acid
B
Nitric acid
C
Sulphuric acid
D
Phosphoric acid
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[Q80 · Sep · 2018]
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Q681
#681
Chemistry → Carbon and Its Compounds → Allotropes of Carbon
·
Easy
Add
Which one of the following statements is
not
\textbf{\text{not}}
not
correct?
Playbook: Carbon and Its Compounds
A
All carbons in diamond are linked by carbon-carbon single bond.
B
Graphite is layered structure in which layers are held together by weak van der Waals forces.
C
Graphite layers are formed by hexagonal rings of carbon atoms.
D
Graphite layers are held together by carbon-carbon single bond.
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[Q81 · Sep · 2018]
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Q682
#682
Chemistry → Matter and Its States → States of Matter, Phase Changes and Diffusion
·
Easy
Add
Which one of the following is called dry ice?
Playbook: Matter and Its States
A
Solid carbon dioxide
B
Liquid carbon dioxide
C
Liquid nitrogen
D
Liquid ammonia
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[Q82 · Sep · 2018]
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Q683
#683
Biology → Human Physiology → Digestive System and Enzymes
·
Easy
Add
The acidic semidigested food coming out of the stomach is neutralized by
Playbook: Human Physiology
A
pancreatic juice
B
duodenal secretion
C
large intestine secretion
D
bile juice
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[Q83 · Sep · 2018]
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Q684
#684
Biology → Human Physiology → Circulatory and Lymphatic System
·
Easy
Add
The oxygenated blood from the lungs is received by the
Playbook: Human Physiology
A
left auricle
B
left ventricle
C
right auricle
D
right ventricle
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[Q84 · Sep · 2018]
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Q685
#685
Biology → Plant Biology → Photosynthesis
·
Easy
Add
The oxygen evolved during photosynthesis comes from splitting of
Playbook: Plant Biology
A
water
B
carbon dioxide
C
oxygen
D
light
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[Q85 · Sep · 2018]
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Q686
#686
Biology → Human Physiology → Nervous System and Sense Organs
·
Easy
Add
Which one of the following depicts the correct circuit of a reflex arc?
Playbook: Human Physiology
A
Effector—sensory neuron—spinal cord—motor neuron—receptor
B
Receptor—sensory neuron—spinal cord—motor neuron—effector
C
Receptor—sensory neuron—brain—motor neuron—effector
D
Sensory neuron—receptor—brain—effector—motor neuron
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[Q86 · Sep · 2018]
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Q687
#687
Biology → Cell Biology → Cell Division and DNA Replication
·
Moderate
Add
If one set of chromosomes for a given plant is represented as
N
N
N
; in case of double fertilization, the zygote and the endosperm nucleus of a diploid plant would have how many sets of chromosomes respectively?
Playbook: Cell Biology
A
N
N
N
and
2
N
2N
2
N
B
2
N
2N
2
N
and
2
N
2N
2
N
C
N
N
N
and
3
N
3N
3
N
D
2
N
2N
2
N
and
3
N
3N
3
N
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[Q87 · Sep · 2018]
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Q688
#688
Physics → Electricity and Magnetism → Combination of Resistors
·
Hard
·
Has image
Add
Consider the following circuit: [Five resistors each of resistance R — one in series, then parallel combination of two pairs]. Which one of the following is the value of the resistance between points A and B in the circuit given above?
Playbook: Electricity and Magnetism
A
2
5
R
\frac{2}{5}R
5
2
R
B
3
5
R
\frac{3}{5}R
5
3
R
C
3
2
R
\frac{3}{2}R
2
3
R
D
4
R
4R
4
R
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[Q88 · Sep · 2018]
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Q689
#689
Physics → Heat and Thermodynamics → Temperature and Thermometry
·
Easy
Add
The absolute zero temperature is 0 Kelvin. In °C unit, which one of the following is the absolute zero temperature?
Playbook: Heat and Thermodynamics
A
0
0
0
°C
B
−
100
-100
−
100
°C
C
−
273
⋅
15
-273\cdot15
−
273
⋅
15
°C
D
−
173
⋅
15
-173\cdot15
−
173
⋅
15
°C
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[Q89 · Sep · 2018]
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Q690
#690
Physics → Light and Optics → Light Phenomena and Spectrum
·
Moderate
Add
Consider the following statements about visible light, UV light and X-rays : 1. The wavelength of visible light is more than that of X-rays. 2. The energy of X-ray photons is higher than that of UV light photons. 3. The energy of UV light photons is less than that of visible light photons. Which of the statements given above is/are correct?
Playbook: Light and Optics
A
1, 2 and 3
B
1 and 2 only
C
2 and 3 only
D
1 only
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[Q90 · Sep · 2018]
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Q691
#691
Physics → Oscillations and Waves → Simple Pendulum
·
Moderate
Add
The time period of oscillation of a simple pendulum having length
L
L
L
and mass of the bob
m
m
m
is given as
T
T
T
. If the length of the pendulum is increased to
4
L
4L
4
L
and the mass of the bob is increased to
2
m
2m
2
m
, then which one of the following is the new time period of oscillation?
Playbook: Oscillations and Waves
A
T
T
T
B
2
T
2T
2
T
C
4
T
4T
4
T
D
T
/
2
T/2
T
/2
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[Q91 · Sep · 2018]
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Q692
#692
Physics → Electricity and Magnetism → Electrical Devices
·
Easy
Add
The connecting cable of electrical appliances like electric iron, water heater or room heater contains three insulated copper wires of three different colours—red, green and black. Which one of the following is the correct colour code?
Playbook: Electricity and Magnetism
A
Red—live wire, Green—neutral wire, Black—ground wire
B
Red—neutral wire, Green—ground wire, Black—live wire
C
Red—live wire, Green—ground wire, Black—neutral wire
D
Red—ground wire, Green—live wire, Black—neutral wire
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[Q92 · Sep · 2018]
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Q693
#693
Physics → Electricity and Magnetism → Electric Current and Ohm's Law
·
Hard
·
Has image
Add
The graphs between current (
I
I
I
) and voltage (
V
V
V
) for three linear resistors 1, 2 and 3 are given. If
R
1
R_1
R
1
,
R
2
R_2
R
2
and
R
3
R_3
R
3
are the resistances of these resistors, then which one of the following is correct?
Playbook: Electricity and Magnetism
A
R
1
>
R
2
>
R
3
R_1 > R_2 > R_3
R
1
>
R
2
>
R
3
B
R
1
<
R
3
<
R
2
R_1 < R_3 < R_2
R
1
<
R
3
<
R
2
C
R
3
<
R
1
<
R
2
R_3 < R_1 < R_2
R
3
<
R
1
<
R
2
D
R
3
>
R
2
>
R
1
R_3 > R_2 > R_1
R
3
>
R
2
>
R
1
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[Q93 · Sep · 2018]
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Q694
#694
Physics → Light and Optics → Human Eye and Optical Instruments
·
Hard
Add
Consider the following statements about a microscope and a telescope : 1. Both the eyepiece and the objective of a microscope are convex lenses. 2. The focal length of the objective of a telescope is larger than the focal length of its eyepiece. 3. The magnification of a telescope increases with the increase in focal length of its objective. 4. The magnification of a microscope increases with the increase in focal length of its objective. Which of the statements given above are correct?
Playbook: Light and Optics
A
1 and 3 only
B
1 and 4
C
2, 3 and 4
D
1, 2 and 3
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[Q94 · Sep · 2018]
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Q695
#695
Physics → Gravitation → Gravitational Field and Potential
·
Moderate
Add
A planet has a mass
M
1
M_1
M
1
and radius
R
1
R_1
R
1
. The value of acceleration due to gravity on its surface is
g
1
g_1
g
1
. There is another planet 2, whose mass and radius both are two times that of the first planet. Which one of the following is the acceleration due to gravity on the surface of planet 2?
Playbook: Gravitation
A
g
1
g_1
g
1
B
2
g
1
2g_1
2
g
1
C
g
1
/
2
g_1/2
g
1
/2
D
g
1
/
4
g_1/4
g
1
/4
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[Q95 · Sep · 2018]
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Q696
#696
Geography → Indian Geography — Physical Features → Indian Rivers, Lakes and Water Bodies
·
Hard
Add
Match List-I with List-II and select the correct answer using the code given below the Lists : List-I (River Basin) A. Bhagirathi B. Alaknanda C. Nayar D. Ganga List-II (Town) 1. Lansdowne 2. Narendra Nagar 3. Uttarkashi 4. Pauri
Playbook: Indian Geography — Physical Features
A
A-3, B-1, C-4, D-2
B
A-3, B-4, C-1, D-2
C
A-2, B-4, C-1, D-3
D
A-2, B-1, C-4, D-3
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[Q96 · Sep · 2018]
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Q697
#697
Geography → Climatology, Atmosphere and Weather → Cyclones, Fronts and Local Winds
·
Hard
Add
Match List-I with List-II and select the correct answer using the code given below the Lists : List-I (Local Wind) A. Yamo B. Black Roller C. Bise D. Haboob List-II (Place) 1. Sudan 2. France 3. Japan 4. North America
Playbook: Climatology, Atmosphere and Weather
A
A-1, B-4, C-2, D-3
B
A-1, B-2, C-4, D-3
C
A-3, B-4, C-2, D-1
D
A-3, B-2, C-4, D-1
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[Q97 · Sep · 2018]
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Q698
#698
Geography → Indian Geography — Physical Features → Indian Rivers, Lakes and Water Bodies
·
Easy
Add
'Majuli', the river island, is located in which one of the following rivers?
Playbook: Indian Geography — Physical Features
A
Jamuna
B
Padma
C
Ganga
D
Brahmaputra
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[Q98 · Sep · 2018]
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Q699
#699
Geography → Indian Geography — Economy, Resources and Transport → Economic Sectors and Government Schemes
·
Hard
Add
Which one of the following Indian States has recorded negative growth of population as per Census 2011?
Playbook: Indian Geography — Economy, Resources and Transport
A
Manipur
B
Mizoram
C
Tripura
D
Nagaland
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[Q99 · Sep · 2018]
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Q700
#700
Geography → Climatology, Atmosphere and Weather → Humidity, Condensation, Clouds and Precipitation
·
Moderate
Add
Which one of the following types of cloud is characterized by continuous precipitation?
Playbook: Climatology, Atmosphere and Weather
A
Cirrocumulus
B
Cumulus
C
Nimbostratus
D
Cumulonimbus
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[Q100 · Sep · 2018]
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