SSC CGL -Science Questions September 2016"

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1.A galvanometer can be converted to a voltmeter by connecting
1) a high resistance in parallel
2) a high resistance in series
3) a low resistance in series
4) a low resistance in parallel

2.Bee sting contains________________
1) An acidic liquid
2) a salt solution
3) an alkaline liquid
4) a corrosive liquid

In particular, bee stings are acidic, whereas wasp stings are alkaline, so the body's reaction to a bee sting may be very different than to that of a wasp sting.

What is wasp?

3.The outer most layer of Sun is known as___________
1) Chromosphere
2) Photosphere
3) Radioactive zone
4) Corona


4.Highest percentage of carbon is found in which form of coal?
1) Anthracite
2) Bituminous
3) Peat
4) lignite

5.The xylem in plants are responsible for:
1) transport of water
2) transport of food
3) transport of amino acids
4) transport of oxygen

6.Which of the following bacterium causes crown gall disease in plants?
1) Bacillus thurigiensis
2) Agrobacterium tumefaciens
3) Pseudomonas fluorescens
4) None of these

• Crown gall, plant disease, caused by the bacterium Agrobacterium tumefaciens (synonym Rhizobium radiobacter).

 They include especially grape, members of the rose family (Rosaceae), shade and nut trees, many shrubs and vines, and perennialgarden plants. 

Symptoms include roundish rough-surfaced galls (woody tumourlike growths), several centimetres or more in diameter, usually at or near the soil line, on a graft site or bud union, or on roots and lower stems.

7.Eustachian Tube is located in which part of human body?
1) Nose
2) Ear
3) Eyes
4) Throat

The eustachian tube is a canal that connects the middle ear to the nasopharynx,

 which consists of the upper throat and the back of the nasal cavity. It controls the pressure within the middle ear, making it equal with the air pressure outside the body.

8.Which part of the brain plays an important role in motor control?
1) Cerebellum
2) Cerebrum
3) Medulla
4) Pons
  

The cerebellum is a region of the brain that plays an important role in motor control. It may also be involved in some cognitive functions such as attention and language, and in regulating fear and pleasure responses, but its movement-related functions are the most solidly established.

9.The frequency of direct current is _____________
1) Zero
2) 50 HZ
3) 60 HZ
4) 100 HZ

AC is an alternating, always changing current source. This means that the direction of the flow of current goes in both directions within the wire, not at the same time, at some frequency, like 60 Hz. DC is zero Hertz. So by said definition, it is what it is. Steady State DC has no frequency.

10.'Agronomy' is the practice of raising ______________
1) Plants and Animals
2) Crop plants
3) Agriculture
4) Fruit plants only

Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow. Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.