General Science Quiz-23 for SSC CHSL/CGL 2016-17

Q1. Fish respire through their—  

(a) nose 

(b) lungs 

(c) gills 

(d) fins 

Ans.(c) 

Q2. The artificial kidney operates on the principle of—

(a) diffusion 

(b) osmosis 

(c) dialysis 

(d) active transport 

Ans.(c)

Q3. The average heart beat per minute in a normal man is—

(a) 50

(b) 70

(c) 80

(d) 100

Ans.(b)

Q4. Bones are mainly made up of— 

(a) calcium and phosphorus 

(b) calcium and sulphur 

(c) calcium and magnesium 

(d) calcium and iron 

Ans.(a)

Q5. How many bones are there in a newly born infant? 

(a) 206

(b) 230

(c) 280

(d) 300

Ans.(d)

Q6. Fertilisation in frogs is—  

(a) external 

(b) internal 

(c) both external and internal 

(d) aerial 

Ans.(a)

Q7. The plant hormone that induces cell division is—

(a) Auxins 

(b) Gibberellins 

(c) Cytokinin 

(d) Domains 

Ans.(c) 

Q8. The medulla oblongata is a part of human— 

(a) heart 

(b) brain 

(c) liver 

(d) sex organ 

Ans.(b)

Q9. Sense of smell is perceived by— 

(a) pituitary 

(b) hypothalamus 

(c) olfactory lobe 

(d) cerebrum 

Ans.(c)

Q10. Acquired Immune-Deficiency Syndrome (AIDS) is caused by— 

(a) bacterium 

(b) protozoa 

(c) fungus 

(d) virus 

Ans.(d)

Q11. Disease caused by deficiency of vitamin-C is— 

(a) beriberi 

(b) scurvy 

(c) pellagra 

(d) night blindness 

Ans.(b)

Q12. Kwashiorkor and beriberi are— 

(a) communicable diseases 

(b) infectious diseases 

(c) deficiency diseases 

(d) none of these 

Ans.(c)

Q13. Myopia is connected with the— 

(a) ears 

(b) eyes 

(c) lungs 

(d) none of these 

Ans.(b)

Q14. Test tube baby means 

(a) ovum fertilised and developed in test tubes 

(b) ovum fertilised in test tubes and developed in test tubes 

(c) ovum fertilised in test tubes and developed in the uterus 

(d) ovum developed without fertilisation in test tubes  

Ans.(c)

Q15. When dust gets into the eye, the part that becomes inflamed and pink is the 

(a) cornea 

(b) choroids 

(c) conjunctiva 

(d) sclerotic

Ans.(c)

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General Science Quiz-22 for SSC CHSL/CGL 2016-17

Q1. In a transistor, the base is—
(a) An insulator 
(b) A conductor of low resistance 
(c) A conductor of high resistance 
(d) An extrinsic semiconductor 
Ans.(d)

Q2. Which instrument is used to measure depth of ocean?
(a) Fathometer
(b) Fluxmeter
(c) Endoscope
(d) Galvanometer
Ans.(a)

Q3. Which instrument is used in submarine to see the objects above sea level?
(a) Periscope
(b) Polygraph
(c) Photometer
(d) Pykometer
Ans.(a)

Q4. What is the measuring unit of length of light waves?
(a) Barrel
(b) Angstrom
(c) Knot
(d) Carat
Ans.(b)

Q5. Force of attraction between the molecules of different substances is called—
(a) Surface tension
(b) Cohesive force
(c) Adhesive force
(d) None of above
Ans.(c)

Q6. Which of the following is an insulator?
(a) copper
(b) ebonite
(c) glass
(d) both (b) & (c)
Ans.(d)

Q7. What happens to acceleration due to gravity(g), if angular speed of earth increases?
(a) increases
(b) decreases
(c) remains same
(d) none of the above
Ans.(b) 

Q8. Electric Motor converts—
(a) Electrical energy into light energy
(b) Mechanical energy into Electrical energy
(c) Electrical energy into mechanical energy
(d) None of the above
Ans.(c)

Q9.Why are ultrasonic waves are used for stirring liquid solutions?
(a) do not produce chemical reactions in the solution 
(b) can produce perfectly homogeneous solution
(c) are easy to produce
(d) do not produce noise during the operation
Ans.(b)

Q10. Which of the following instrument is used to measure the strength of winds—
(a) Tachometer
(b) Barometer
(c) Anemometer
(d) Rectifier
Ans.(c)

Q11. An object is placed between two parallel mirrors. The number of images formed is—
(a) 6
(b) 8
(c) 9
(d) Infinity
Ans.(d)

Q12. Acceleration due to gravity(g) is independent of—
(a) mass of the body
(b) size
(c) shape
(d) all of the above
Ans.(d)

Q13. The frequency of sound waves can be expressed in—
(a) s-1 
(b) Hz
(c) Cycles/second
(d) All of the above
Ans.(d)

Q14. When a ray or light enters a glass slab from air
(a) Its wavelength increase
(b) Its wavelength decrease
(c) Its frequency increase
(d) Both are increases
Ans.(b)

Q15. Ultrasonic waves can be detected by—
(a) Quinck’s tube
(b) Kundt’s tube 
(c) Hebb’s method
(d) Telephone
Ans.(b)

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SSC CGL 2016-17 Tier-III Exam Analysis- 19th March Descriptive Paper

Dear Aspirants,

SSC CGL descriptive paper is over now. In this post, we will provide the Exam analysis for Tier-III descriptive paper. The Descriptive paper has been introduced first time in the SSC CGL 2016 only. There are mainly three components of descriptive paper namely Essay Writing, Precis writing and Letter Writing. 

There were total 2 questions to be solved in 60 min. time limit. All 2 questions were mandatory to solve. there was no choice to choose from. 

1.Essay Topics asked on 19th March 2017 Descriptive paper

Only one essay was asked: 50 marks

Word limit: 250 words 

Topic- In the event of an earthquake, what you should do, what you should not.

 

2.Letter Writing Questions asked on 19th March 2017 Descriptive paper

Only one informal Letter was asked: 50 marks

Word limit: 150 words

Letter Topic: Considering yourself Narendra/Seema, Write a letter to your brother Suresh explaining the present advantage of computer-based exams and what will be the future shortfall of it.

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General Science Quiz-21 for SSC CHSL/CGL 2016-17

Q1. If the distance between two charges is halved, then the force between them becomes 
(a) Half 
(b) Double 
(c) Four times 
(d) One-fourth 
Ans.(c)

Q2. Pick out the scalar quantity—
(a) Velocity
(b) Angular momentum 
(c) Speed
(d) Torque 
Ans.(c)

Q3. Railway tracks are banked on curves so that—
(a) Necessary centrifugal force may be obtained from the horizontal component of the weight of the train 
(b) Frictional force can be avoided between the tracks and wheels 
(c) Necessary centripetal force may be obtained from the horizontal component of the weight of the train 
(d) The train may not fly off in the opposite direction 
Ans.(c)

Q4. Conservation of energy means that— 
(a) Energy can be created as well as destroyed 
(b) Energy can be created but not destroyed 
(c) Energy cannot be created but can be destroyed 
(d) Energy can neither be created nor destroyed 
Ans.(d)

Q5. With increase of temperature, the frictional force acting between two surfaces— 
(a) Increase 
(b) Remain the same 
(c) Decreases 
(d) Becomes zero 
Ans.(b)

Q6. Gravitational constant (G) is an example of 
(a) Non-dimensional constant 
(b) Dimensional constant 
(c) Numeric constant 
(d) Quantity without dimensions 
Ans.(b)

Q7. A hydrogen filled balloon rises in air because—  
(a) The atmospheric pressure decreases with altitude 
(b) The acceleration due to gravity decreases with altitude 
(c) The density of air decreases with altitude 
(d) The buoyant force exerted by the air on the balloon is greater than the weight of the balloon 
Ans.(d) 

Q8. A small weight put on the pressure cooker increases the pressure of the steam because  
(a) It is air tight 
(b) The area of contact is very small 
(c) The density of metal is very high 
(d) The pressure builds up irrespective of the weight placed 
Ans.(b)

Q9. A sprayer works on the principle expounded by— 
(a) Newton 
(b) Archimedes 
(c) Boyle 
(d) Pascal 
Ans.(d)

Q10. The ink of pen leaks out in an airplane because—
(a) Atmospheric pressure increases 
(b) Pressure of ink inside is more than the ambient pressure 
(c) High speed of the aeroplane 
(d) Temperature difference 
Ans.(b)

Q11. Water has maximum density at which temperature?
(a) Room temperature 
(b) 0°C
(c) 4°C
(d) 100°C 
Ans.(c)

Q12. A solid needle placed horizontally on the surface of the water floats due to—
(a) Surface tension 
(b) Capillary action 
(c) Cohesion 
(d) Adhesion 
Ans.(a)

Q13. The absorption of ink by blotting paper involves—
(a) Viscosity of ink 
(b) Capillary action phenomenon 
(c) Diffusion of ink through the blotting 
(d) Siphon action 
Ans.(b)

Q14. Which element used in an electric filament?
(a) Copper 
(b) Aluminium 
(c) Iron 
(d) Tungsten 
Ans.(d)

Q15. A piece of ice is floating in a beaker containing water. When whole of the ice melts 
(a) the level of water will come down. 
(b) the level of water will come up. 
(c) the level of water will first rise and then fall. 
(d) the level of water will remain the same.
Ans.(d)

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General Science Quiz-20 for SSC CHSL/CGL 2016-17

1If by mistake some radioactive substance gets into human body, then from the point of view, radiation damage, the most harmful will be one that emits–

(a) γ–rays

(b) neutrons

(c) β–rays

(d) α–rays

Ans – a

2.Who presented the theory of radioactive disintegration?

(a) Rutherford and Soddy

(b) Soddy and Fajan

(c) Thomson and Rutherford

(d) Hahn and strassman

Ans – a

3.Group displacement law was given by–

(a) Bacquerel

(b) Rutherford

(c) Mendeleaf

(d) Soddy and Fajan

Ans – D

4.Quantity of radioactive material which undergoes 106 disintegration per second is called–

(a) Bacquerel

(b) Rutherford

(c) Curie

(d) Faraday

Ans – b

5.One Curie of activity is equivalent to–

(a) 3.7 × 1017 disintegration per second

(b) 3.7 × 1010 disintegration per second

(c) 3.7 × 1014 disintegration per second

(d) 3.7 × 1013 disintegration per second

Ans – B

6.The first indication that a stable nucleus can be broken down was afforded by–

(a) Rutherford

(b) Madam Curie

(c) Soddy

(d) Schmidt

Ans – a

7.When the nucleus of uranium is bombarded with neutrons, it breaks up into two nuclei of nearly equal mass. This process is called–

(a) nuclear fission

(b) nuclear fusion

(c) physical change

(d) artificial radioactivity

Ans – a

8.Hydrogen bomb is based on the principle of–

(a) nuclear fission

(b) nuclear fusion

(c) natural radioactivity

(d) artificial radioactivity

Ans – b

9.In nuclear reactors the speed of neutrons is slowed down by–

(a) heavy water

(b) ordinary water

(c) zinc rods

(d) molten caustic soda

Ans – a

10.The fuel in atomic pile is

(a) carbon

(b) sodium

(c) petroleum

(d) uranium

Ans – d

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General Science Quiz-19 for SSC CHSL/CGL 2016-17

Q1. Which zone of a candle flame is the hottest? 

(a) Dark innermost zone 

(b) Outermost zone 

(c) Middle luminous zone 

(d) Central zone

Q2. The image of the object that we see, forms on the retina of our eyes is—

(a) always erect 

(b) always inverted 

(c) erect or inverted depends upon the intensity of light 

(d) erect or inverted depends upon the age of the person

Q3. Evening Sun is not as hot as the midday sun. What is the reason? 

(a) In the evening, radiation travel slowly 

(b) In the evening, the temperature of the sun decreases 

(c) Ozone in atmosphere absorbs more light in the evening 

(d) In the evening, radiations travel larger distance through atmosphere

Q4. A body is thrown vertically upwards and then falls back on the ground. When its potential energy is maximum?

(a) on the ground 

(b) at the maximum height 

(c) during the return journey 

(d) both on the ground and at the maximum height

Q5. The magnet is strongest near the-

(a) on equator point from the poles of the magnet 

(b) ends of the magnet 

(c) centre of magnet 

(d) None of the above

Q6. A body travelling with a speed of more than the velocity of sound in air is said to travel with— 

(a) supersonic speed 

(b) hypersonic speed 

(c) ultrasonic speed 

(d) infrasonic speed

Q7. Which of the special technique is used in ships to calculate the depth of ocean beds?

(a) LASER 

(b) SONAR 

(c) sonic boom 

(d) reverberation

Q8. What is the SI unit of electrical conductance?

(a) Volt

(b) Watt

(c) Siemens 

(d) Ampere

Q9. Which of the following is a conductor of electricity?

(a) Silver

(b) Copper

(c) Aluminium

(d) All of the above 

Q10. Why is tungsten used exclusively for the filament of an incandescent lamp?

(a) Tungsten can be drawn into thin wires which in turn offer high resistance

(b) Tungsten has a fairly good resistivity

(c) The melting point of tungsten is very high

(d) All of these

Q11. Why ammeter is likely to burn out if you connect it in parallel?

(a) It has high voltage

(b) It has high resistance

(c) It has low resistance

(d) It has low voltage

Q12. What will happen to current passing through a resistor if the potential difference across its ends is doubled and the resistance is halved?

(a) Becomes four times

(b) Becomes halved

(c) Remain unchanged

(d) Becomes one fourth

Q13. Which of the following has the highest refractive index?

(a) Glass 

(b) Water

(c) Pearl 

(d) Diamond

Q14. For a plane mirror, magnification (m)=________

(a) 0 

(b) 1

(c) ± 1 

(d) ≤ 0

Q15. We can see objects because of which phenomena?

(a) reflection 

(b) refraction 

(c) transmission 

(d) diffraction

Solutions

S1. Ans.(b)

Sol.  

S2. Ans.(b)

Sol. 

S3. Ans.(d)

Sol. 

S4. Ans.(b)

Sol. 

S5. Ans.(b)

Sol. 

S6. Ans.(a)

Sol. 

S7. Ans.(b) 

Sol.

S8. Ans.(c)

Sol. 

S9. Ans.(d)

Sol. 

S10. Ans.(d)

Sol. 

S11. Ans.(c)

Sol. 

S12. Ans.(a)

Sol. 

S13. Ans.(d)

Sol. 

S14. Ans.(b)

Sol. 

S15. Ans.(a)

Sol. 

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General Science Quiz-18 for SSC CHSL/CGL 2016-17

Q1. One astronomical unit is the average distance between

(a) Earth and the Sun     

(b) Earth and the Moon

(c) Jupiter and the Sun  

(d) Pluto and the Sun

Q2. Decibel is the unit of

(a) speed of light              

(b) intensity of sound

(c) intensity of heat        

(d) None of these

Q3. Which of the following is not a vector quantity?

(a) speed             

(b) velocity

(c) torque            

(d) displacement

Q4. When a steel ball is placed on the surface of mercury, it does not sink because

(a) of the surface tension of mercury     

(b) mercury is a semisolid

(c) of the high viscosity of mercury          

(d) the density of mercury is greater than that of steel

Q5. Harry Brearley has invented

(a) Electric iron

(b) Electromagnet

(c) Stainless Steel

(d) Gramophone

Q6. The absorption of ink by blotting paper involves

(a) capillary action phenomenon

(b) viscosity of ink

(c) siphon action

(d) diffusion of ink through the blotting

Q7. Light year is a unit of

(a) Time

(b) Light

(c) Distance

(d) Intensity of light

Q8.Pa(Pascal) is the unit for

(a) thrust 

(b) pressure

(c) frequency 

(d) conductivity

Q9. In vacuum the speed of light depends upon

(a)Wavelength

(b)Velocity of the source of light

(c)Frequency

(d)None of these

Q10. The amount of light reflected depends upon the

(a) Nature of the surface

(b) Smoothness of the surface

(c) Nature of material of object

(d) All of the above

Q11. A well cut diamond appears bright because of 

(a) Dispersion

(b) Total internal reflection

(c) Its emit light

(d) Radioactive

Q12. When a ray or light enters a glass slab from air

(a) Its wavelength increase

(b) Its wavelength decrease

(c) Its frequency increase

(d) Both are increases

Q13 "Soap helps in the cleaning of clothes because "

(a) It reduces surface tension

(b) It increases surface tension

(c) It absorbs the dirt

(d) Of some other reason'

Q14 "How is the pressure cooker work? "

(a) Heat cannot escape from the cooker

(b) Low pressure inside the cooker rises the boiling point of water

(c) High pressure inside the cooker rises the boiling point of water

(d) Steam inside the cooker makes food to cook with ease

Q15 "Which one of the following can convert the alternating current into direct current?. "

(a) Transformer

(b) Motor

(c) Dynamo

(d) Rectifier

                  

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