Explore topic-wise MCQs in GK.

This section includes 625 Mcqs, each offering curated multiple-choice questions to sharpen your GK knowledge and support exam preparation. Choose a topic below to get started.

51.

Can the approximate age of the tree be ascertained?

A. by sapping the height
B. by sapping the diameter
C. Counting the annual rings located mainly in the tane
D. Counting the annual rings found in the branch
Answer» D. Counting the annual rings found in the branch
Discussion
52.

During which process does the substance get from oxygen or is hydrogen removed from it?

A. Deselection
B. Degradation
C. Oxidation
D. All of the above
Answer» D. All of the above
Discussion
53.

Some tips and related energy conversions are given below?
(i) Electrical Generator - Electrical from Mechanical
(ii) Electric motor - electro-to-mechanical
(iii) Diesel engine - electric from light
(iv) Solar cells - chemical to mechanical
Which of the above pairs is related to it?
A. (i) and (ii)
B. (i) and (iii)
C. (ii) and (iv)
D. (iii) and (iv)
Answer» B. (i) and (iii)
Discussion
54.

For whom does plaster of Paris freeze?

A. Carbon dioxide
B. Hydrolysis
C. Hydration
D. D - Hydration
Answer» E.
Discussion
55.

The biological action in which Oxygen is free?
A. Photosynthesis
B. Respiration and excretion
C. Respiration
D. Respiration and photosynthesis
Answer» B. Respiration and excretion
Discussion
56.

Is the genetic substance found in the cell?
A. DNA
B. RNA
C. Protein
D. Carbohydrates
Answer» B. RNA
Discussion
57.

Which class does bee and Worm belong to?

A. Pests
B. Germs
C. Tida
D. None of these
Answer» B. Germs
Discussion
58.

What mosquito bite is transmitted by a disease called malaria

A. Culex
B. Anopheles female mosquito
C. Dengue
D. Male anopheles mosquito
Answer» C. Dengue
Discussion
59.

Is the largest cell in the human body?
A. Muscle cell
B. Skin cell
C. Muscle cell
D. Liver cell
Answer» B. Skin cell
Discussion
60.

A healthy man has a blood pressure ( stilock and distillatic ) ?
A. 120 mm and 80 mm
B. 120 mm and 110 mm
C. 90 mm and 60 mm
D. 85 mm and 55 mm
Answer» B. 120 mm and 110 mm
Discussion
61.

The lactose is made , from . . . .
A. Glucose + Fructose
B. Glucose + Glucose
C. Glucose + Galactose
D. Fructose + Fructose
Answer» D. Fructose + Fructose
Discussion
62.

Which of the following holds the Seking DNA?

A. Centriol
B. Golzikay
C. Lysosome
D. Mitocochondra
Answer» E.
Discussion
63.

Is the Taj Mahal being damaged?

A. Floods in Yamuna
B. by decomposition of marble at high temperature
C. Air pollutants from Mathura Oil Refinery
D. None of the above
Answer» D. None of the above
Discussion
64.

What enzyme occurs in human tears , causing bacteria to die ?

A. Emiles
B. Urias
C. Lysozyme
D. Tylin
Answer» D. Tylin
Discussion
65.

Is the german silver used in making utensils an alloy ?

A. Copper, Silver and Nickel
B. Copper, zinc and nickel
C. Copper, zinc and aluminium
D. Copper, Nickel and Aluminium
Answer» C. Copper, zinc and aluminium
Discussion
66.

Is it a small quantity of additives to keep tomato chutney fresh for longer?

A. Sodium Tartrate
B. Sodium chloride
C. Sodium bicarbonate
D. Sodium benzoate
Answer» E.
Discussion
67.

The major inert gas obtained as an ingredient of natural gas is the inert gas?

A. Helium
B. Neon
C. Argon
D. Crypton
Answer» B. Neon
Discussion
68.

What harmful gas is released by factories and vehicles

A. Carbon monoxide
B. Nitrogen dioxide
C. Sulphur dioxide
D. Carbon dioxide
Answer» B. Nitrogen dioxide
Discussion
69.

What principle does the publisher fibre work on?

A. Total internal reflection
B. Interference
C. Scattering
D. Diffraction
Answer» B. Interference
Discussion
70.

Whose first replacement of the heart was made by whom?

A. Dr. William Harvey
B. Sir F . G. hofkins
C. Dr. Louis Pasteur
D. Dr. Christian Bernard
Answer» E.
Discussion
71.

Is jean?
A. A part of the liver
B. A part of the RNA
C. A portion of chromosomes
D. A part of DNA
Answer» E.
Discussion
72.

H5N1 adds to influenza?

A. Goat Flu
B. Bird Flu
C. Horse Flu
D. Cow Flu
Answer» C. Horse Flu
Discussion
73.

Which of the following metals is used in Space Crafts to withstand high temperatures?

A. Pb
B. Ti
C. Fe
D. Ni
Answer» C. Fe
Discussion
74.

Persistence of vision is the Principle behind:
A. Camera
B. Binocular
C. Cinema
D. Periscope
Answer» D. Periscope
Discussion
75.

Which of the following substances is a bad conductor of electricity?
A. Graphite
B. Diamond
C. Gold
D. Silver
Answer» C. Gold
Discussion
76.

The escape velocity of the Earth is?
A. 15.0 km/sec
B. 21.1 km/sec
C. 7.0 km/sec
D. 11.2 km/sec
Answer» E.
Discussion
77.

The velocity of sound is minimum in?
A. Air
B. Iron
C. Vacuum
D. Water
Answer» D. Water
Discussion
78.

The major component of Honey is?
A. Fructose
B. Sucrose
C. Glucose
D. Maltose
Answer» B. Sucrose
Discussion
79.

Which one of the following metal is used with iron to make it rust free?
A. Chromium
B. Tin
C. Alluminium
D. Carbon
Answer» B. Tin
Discussion
80.

The full form of DNA is:
A. deoxyribeneutral acid
B. deltanucleic acid
C. deoxyribonucleic acid
D. dyoxyenucleic acid
Answer» D. dyoxyenucleic acid
Discussion
81.

B.C.G vaccination is to be given a newly born baby.
A. Immediately after birth
B. Within 48 days
C. With in 6 days
D. Within 1 month from birth
Answer» B. Within 48 days
Discussion
82.

Glucose is stored in the human body as-
A. Starch
B. Glycogen
C. Fructose
D. Maltose
Answer» C. Fructose
Discussion
83.

Who had given the theory of Plate tectonics?
A. William Harvey
B. Alfred Wegener
C. Ernest Rutherford
D. Edmond Becquerel
Answer» C. Ernest Rutherford
Discussion
84.

Which of the following is incorrect?
A. Oncology - Study of Cancer
B. Numismatics Stamps
C. Ornithology- Study of birds
D. Osteology - Study of bones
Answer» C. Ornithology- Study of birds
Discussion
85.

What is the smallest unit of power?
A. Horsepower
B. Megawatt
C. Watt
D. Kilowatt
Answer» D. Kilowatt
Discussion
86.

Farad is the unit of:

A. Resistance
B. Conductanc
C. Capacitance
D. Inductance
Answer» D. Inductance
Discussion
87.

The category in which 'Rat' comes in the food chain is-
A. Primary consumer
B. Secondary consumer
C. Tertiary consumer
D. Producer
Answer» B. Secondary consumer
Discussion
88.

The chemical name of_______ is calcium sulphate hemihydrates.
A. Baking powder
B. Gypsum
C. Baking soda
D. Plaster of Paris
Answer» E.
Discussion
89.

Which of the following energy varies with the height of an object?
A. Nuclear energy
B. Kinetic energy
C. Chemical energy
D. Potential energy
Answer» E.
Discussion
90.

The largest cell is ________________
A. The egg of an Ostrich
B. Nerve Cell
C. Ovum
D. None of the above
Answer» B. Nerve Cell
Discussion
91.

Which type of iron ore has magnetic properties?
A. Magnetite
B. Hematite
C. Limonite
D. Siderite
Answer» B. Hematite
Discussion
92.

What is the physical phase of life called?
A. Cytoplasm
B. Organelles
C. Protoplasm
D. None of the above
Answer» D. None of the above
Discussion
93.

Which animal never drinks water in its entire life?

A. Rat
B. Kangaroo rat
C. Kangaroo
D. Hippopotamus
Answer» C. Kangaroo
Discussion
94.

Ranikhet disease is associated with
A. Fish
B. Honeybees
C. Hens
D. Pigs
Answer» D. Pigs
Discussion
95.

National Aquatic Animal of Indian is
A. Gangetic Dolphin
B. Whale
C. Lion
D. Chinkara
Answer» B. Whale
Discussion
96.

The Black soil is also known as ______ soil.
A. Bhangar
B. Humus
C. Crystalline
D. Regur
Answer» E.
Discussion
97.

The work done is zero if there is no _____.
A. Power
B. Momentum
C. Velocity
D. Displacement
Answer» E.
Discussion
98.

Which of the following represents the equation for position-time relation?
A. $$ {2as={v^{2}-{u^{2}}}}$$
B. $$ {s=ut+{1 over 2}{at^{2}}}$$
C. v = u + at
D. V = u + at
Answer» C. v = u + at
Discussion
99.

Transfer of pollen grains from anther to the stigma of a flower is called ___.
A. Pollination
B. Regeneration
C. Transpiration
D. Sexual reproduction
Answer» B. Regeneration
Discussion
100.

What is the scientific term for the speed of an object moving in a definite direction?
A. Time
B. Acceleration
C. Velocity
D. Motion
Answer» D. Motion
Discussion