We are providing the mix quiz on Chemistry/Biology/Physics. From this section you will get at least 7-8 questions in SSC CGL Exam. So from this quiz one can prepare general science section on daily basis.
Q1. A dark purple compound used as an antiseptic and disinfectant is
(a) Potassium nitrate
(b) Sodium thiosulphate
(c) Potassium permanganate
(d) Calcium phosphate
Q2. When mechanical waves have a frequency below the audible range, these are called
Q3.On which one of the following reaction Hydrogen bomb is based ?
(a) Controlled fusion
(b) Controlled fission
(c) Uncontrolled fission
(d) Uncontrolled fusion
Q4. Bats can fly in the dark because
(a) They can see batter in the dark
(b) The pupils of their eyes are very wide
(c) They are guided by the ultrasonic
(d) They are guided by microwaves
Q5. In a doctor’s stethoscope, sound is intensified because of
(a) Resonance of sound
(b) Constructive interference
(c) Principle of superposition of waves
(d) Reflection of sound
Q6. Sound travels with a different speed in different media. In what order does the velocity of sound increase in these media?
(a) Water, iron and air
(b) Iron, air and water
(c) Air, water and iron
(d) Iron, water and air
Q7. The intensity of sound at a point is __________ its distance from the source.
(a) Directly proportional to
(b) Inversely proportional to
(c) Directly proportional to the square of
(d) Inversely proportional to the square of
Q8. What of ultrasonic waves?
(a) Sound waves with a frequency shorter than audio frequency range
(b) Sound waves produced in vacuum
(c) Sound waves with a frequency higher than audio-frequency range
(d) None of these
Q9. When a tuning fork produces sound waves in air, which one of the following is the same in the material of tuning fork as well as in air?
Q10. Both a Celsius and a Fahrenheit thermometer give the same reading at a particular temperature. What is that temperature?
(a) –273 °C
(b) –180 °C
(c) –40 °C
(d) 0 °C
Q11. A temperature of 176 °F is equal to
(a) 80 °C
(b) 85 °C
(c) 75 °C
(d) 90 °C
Q12. A temperature of 60 °C is equal to
(a) 130 °F
(b) 140 °F
(c) 150 °F
(d) 160 °F
Q13. A temperature of 70 °C is equal to
(a) 70 K
(b) 170 K
(c) 243 K
(d) 343 K
Q14. A thermostat is a device for
(a) Switching off an electrical appliance
(b) Measuring temperature
(c) Regulating temperature
(d) Producing heat
Q15. By what process is heat transmitted from the filament of an evacuated electric bulb to the glass?
(d) Heat cannot be transmitted through a vacuum