Dear Students, Science is an important part in GENERAL STUDIES of SSC CGL Exam 2017. In SSC CGL, 5-8 questions were asked from this part. So we are providing 15 Questions of SCIENCE every day.We have provided Science Notes to help you with all the concepts.
Q1. Smog is a combination of
(a) Air and water vapours
(b) Water and smoke
(c) Fire and water
Q2. Which of the following circuit elements is used to ‘block’ DC in an electronic circuit?
(a) Resistances
(b) Capacitance
(c) Inductance
(d) Diode
Q3. Spectacles used for viewing 3D films have
(a) Bifocal lens
(b) Convex lens
(c) Concave lens
(d) Polaroids
Q4. A falling drop of rain water acquires the spherical shape due to
(a) Viscosity
(b) Surface Tension
(c) Atmospheric pressure
(d) Gravitational force
Q5. It is difficult to cook rice
(a) at the top of a mountain
(b) at the sea level
(c) under a mine
(d) same anywhere
Q6. Philosopher’s Wool is
(a) Zinc carbonate
(b) Zinc sulphate
(c) Zinc oxide
(d) Zinc blende
Q7. The strongest force in nature is
(a) electrical force
(b) gravitational force
(c) nuclear force
(d) magnetic force
Q8. Which of the following liquids has the least density?
(a) Fresh water
(b) Salt water
(c) Petrol
(d) Mercury
Q9. The device used to change the speed of an electric fan is
(a) Amplifier
(b) Regulator
(c) Switch
(d) Rectifier
Q10. A concave lens always forms an image which is
(a) real and erect
(b) virtual and erect
(c) real and inverted
(d) virtual and inverted
Q11. Noise is measured in
(a) Watt
(b) REM
(c) Centigrade
(d) Decibel
Q12. The element used for making solar cells is
(a) Magnesium
(b) Sodium
(c) Calcium
(d) Silicon
Q13. Curie point is the temperature at which
(a) Matter becomes radioactive
(b) A metal loses magnetic properties.
(c) A metal loses conductivity
(d) Transmutation of metal occurs
Q14. The period of revolution of geostationary satellite is
(a) 365 days
(b) 30 days
(c) 24 hours
(d) changing continuously
Q15. The most reactive among the halogens is
(a) Fluorine
(b) Chlorine
(c) Bromine
(d) Iodine
