Friday, January 1, 2016

General Science Quiz For SSC and RRB

01. The magnetic field lines inside a long current-carrying solenoid are nearly :
(1) Circular 
(2) Parabolic
(3) Straight 
(4) Elliptical

02. Ice is floating on water in a beaker when ice completely melts then level of water in beaker :
(1) Increases 
(2) Decreases
(3) Remains the same 
(4) First increases then decreases


03. A cell will plasmolyse, if it is placed in:
(1) Hypertonic solution
(2) Hypotonic solution
(3) Isotonic solution
(4) Concentration of water molecules does not matter

04. In Xerophytes, the rate of water loss get reduced due to covering of epidermis by:
(1) Cutin 
(2) Suberin
(3) Lignin 
(4) Gum

05. During lack of oxygen in tissues of our body, the pyruvate is converted into lactic acid in:
(1) Mitochondria 
(2) Nucleus
(3) Cytoplasm 
(4) Ribosome

06. Kidneys do not perform the function of:
(1) Regulation of blood pressure 
(2) Filtration of blood
(3) Regulation of ions concentration 
(4) Secretion of anti bodies

07. Double fertilization is a unique feature of:
(1) Bryophytes 
(2) Angiosperm
(3) Algae 
(4) Gymnosperm

08. Phototropic and geotropic response of a plant is under control of following hormone:
(1) Auxin 
(2) Gibberlin
(3) Cytokinin 
(4) Ethylene

09. The following blood vessel does not contain deoxygenated blood:
(1) Pulmonary artery 
(2) Vena Cava
(3) Hepatic vein 
(4) Pulmonary Vein

10. Photosynthesis is an important mode of autotrophic nutrition. The event which does not occur in photosynthesis is:
(1) Conversion of light energy to chemical energy
(2) Reduction of carbon dioxide to carbohydrate
(3) Oxidation of carbon to carbondioxide
(4) Absorption of light energy by chlorophyll

Answers ....

01. 3

02. 3
Level of water remains constant as ice is less dense than liquid water. In ice, the water molecules
are packed in cage structure. If it melts some of the water is free to move in between the free
room in the crystalline cage structure.


03. 1
When a plant cell is placed in hypertonic solution, plasmolysis will take place because of exosmosis.

04. 1
 Cutin, a waxy layer prevents transpiration from aerial parts of xerophytes.

05. 3
Due to lack of oxygen, pyruvate does not enter the Kreb‟s cycle and gets converted into lactic acid in the cytoplasm.

06. 4
Kidneys are not involved in secretion of antibodies.

07. 2
Double fertilization is a characteristic of Angiosperms (flowering plants) in which zygote and endosperm nucleus are formed.


08. 1
Phototropic and geotropic movements of a plant depend upon different concentrations of auxin.

09. 4
Pulmonary Vein carries oxygenated blood from the lungs to the left auricle of the heart.


10. 3
During photosynthesis carbon dioxide gets reduced to carbohydrate but there is no oxidation of

carbon to carbon dioxide.

No comments: