Science Quiz
Full name of LED is :
(A) Light Emitting Doll (B) Light Emitting Dynamo
(C) Light Emitting Drum (D) Light Emitting Diode
Electric-cell converts
(A) mechanical energy into electric energy.
(B) electric energy into mechanical energy.
(C) chemical energy into electric energy.
(D) electric energy into sound energy.
Order of planets according to distance from the Sun is :
(A) Mercury, Venus, Mars, Earth
(B) Venus, Mercury, Earth, Mars
(C) Mercury, Venus, Earth, Mars
(D) Mercury, Earth, Venus, Mars
The process used in the separation of rice from paddy stalks
is –
(A) Hand picking (B) Threshing
(C) Winnowing (D) Sieving
One of the steps used in the process of formation of common
salt from sea-water is –
(A) Distillation (B) Condensation
(C) Vaporisation (D) Filtration
The chemical substance present in calamine solution that is
applied on the skin to
neutralise the effect of ant bite is –
(A) Calcium carbonate (B) Zinc carbonate
(C) Sodium carbonate (D) Sodium hydroxide
The oxide responsible for acid-rain is –
(A) H2O (B) CO
(C) SO2 (D) CO2
The pair of thermosetting plastic is –
(A) Polythene, PVC (B) Polythene, Melamine
(C) Bakelite, PVC (D) Bakelite, Melamine
The fuel with highest calorific value in kJ/kg unit is –
(A) CNG (B) LPG
(C) Petrol (D) Hydrogen
In which group the unicellular, Eukaryotic organisms are
included ?
(A) Monera (B) Protista
(C) Fungi (D) Plantae
After fertilization, a mature and developed ovary is known
as –
(A) Seed (B) Endosperm
(C) Fruit (D) Embryo
Which one is not necessary for photosynthesis ?
(A) Sunlight (B) Carbon dioxide
(C) Chlorophyll (D) Oxygen
During respiration in plants the breakdown of glucose to
Pyruvic acid is called –
(A) Kreb’s cycle (B) Calvin cycle
(C) Glycolysis (D) Fermentation
Who first described Golgi apparatus ?
(A) Robert Hooke (B) Robert Brown
(C) Camilio Golgi (D) Leeuwenhoek
Which bacterium causes ‘Whooping Cough’ disease in human
?
(A) Bordetella pertussis (B) Corynebacterium diphtheriae
(C) Mycobacterium leprae (D) Neisseria gonorrhoeae
Which type of sweat glands are present in human skin ?
(A) Apocrine (B) Holocrine
(C) Eccrine (D) All of these
Disease caused by deficiency of Vitamin-D (Calciferol) is :
(A) Night-blindness (B) Beri-Beri
(C) Scurvy (D) Rickets
In which animal asexual reproduction occurs by budding ?
(A) Amoeba (B) Hydra
(C) Plasmodium (D) Leishmania
Which hormone controls maturation of egg in ovary ?
(A) FSH (B) TSH
(C) ADH (D) GH
Example of sexually transmitted disease is –
(A) T.B. (B) Cancer
(C) Gonorrhoea (D) Pneumonia
The example of Kharif crop is –
(A) Gram (B) Pea
(C) Maize (D) Linseed
A force F is acting on area A. If the force is double and the area
is halved, the resultant pressure will be of the initial pressure :
(A) half (B) double
(C) one-fourth (D) four times
A wooden spoon is dipped in a cup of ice-cream. Its
other end
(A) becomes cold by the process of convection.
(B) becomes cold by the process of radiation.
(C) becomes cold by the process of conduction.
(D) does not become cold.
Image formed by a plane mirror is :
(A) virtual, behind the mirror and enlarged.
(B) virtual, behind the mirror and of the same size as the object.
(C) real, at the surface of the mirror and enlarged.
(D) real, behind the mirror and of the same size as the object.
The limit of audibility for healthy human is :
(A) 10 Hz to 20000 Hz (B) 10 Hz to 2000 Hz
(C) 20 Hz to 20000 Hz (D) 20 Hz to 200000 Hz