Science Quiz for RRB NTPC 2017

Q1. Which law of motion is known as “law of inertia”?
a. Newton’s Third Law
b. Newton’s First Law
c. Newton’s Second Law
d. None of these

Q2. How many images can a man see if he stands between two plane mirrors inclined at an angle of 60 degree?
a. 4
b. 5
c. 6
d. None of these.

Q3. The mode of propagation of heat fro the sun to the earth is called
a. Conduction alone
b. Convection Alone
c. Radiation Alone
d. Convection and Radiation.

Q4. Simple Pendulum was introduced by
a. Galileo
b. Newton
c. Charles
d. Alexander

Q5. Gastric Juice contains 
a. Sucrose
b. Lipids and Sucrose
c. Hydrochloric Acid and pepsin
d. Bicarbonate

Q6. Gases have 
a. High compressibility but less than solids
b. Low compressibility
c. No compressibility
d. High compressibility more than solid

Q7. Cheese is an example of?
a. Sol
b. Gel
c. Emulsion
d. Foam

Q8. Torr is the unit of
a. Temperature
b. Volume
c. Viscosity
d. Pressure

Q9. Bohr’s model can explain
a. The spectrum of hydrogen atom only
b. Spectrum of atom or ion containing one electron only
c. The spectrum of hydrogen molecules
d. The solar spectrum

Q10. Which of the following diseases is caused by Virus?
a. Cholera
b. Diphtheria
c. Measles
d. Whooping Cough

Q11. The dimension of Plank’s constant are the same as the dimensions of
a. Energy
b. Frequency
c. Linear Momentum
d. Angular Momentum

Q12. Sometimes the tubes in the well-inflated tyers of a cycle left in the sun burst open
a. Because the pressure of air inside the tube increases
b. Because the volume of air inside the tube increases due to rise in its temperature
c. Because the tube containing air melts
d. Because the volume and the pressure both increases

Q13. The heating Element in the electric bulb is made up of
a. Copper
b. Tungsten
c. Nichrome
d. Iron

Q14. If woollen cloth of red colour is seen in the light of a mercury vapour lamp, then the cloth will appear
a. Red
b. Blue
c. Black
d. Green

Q15. In the visible spectrum, the colour having the shortest wavelength is of
a. Blue
b. Red
c. Violet
d. Green

Q16. At what temperature the reading of the Fahrenheit and Centrigrade scales coincide ?
a. O degree
b. 100 Degree
c. -40 Degree
d. 40 Degree

Q17. The function of cement in masonry is based on the phenomenon of 
a. Cohesion
b. Adhesion
c. Elasticity
d. Rigidity

Q18. The main source of heat is 
a. The sun
b. The Star
c. The interior of the earth
d. Chemical reaction
Answer – A

Q19. The air becomes heated by
a. Conduction
b. Convection
c. Radiation
d. Expansion

Q20. Sound is a form of
a. Electromagnetic Energy
b. Magnetic Energy
c. Chemical Energy
d. Energy
Answer – D

Answer Key

1. b. Newton’s First Law
2. b. 5
3. c. Radiation Alone
4. a. Galileo
5. c. Hydrochloric Acid and pepsin
6. d. High compressibility more than solid
7. b. Gel
8. d. Pressure
9. b. Spectrum of atom or ion containing one electron only
10. c. Measles
11. c. Linear Momentum
12. b. Because the volume of air inside the tube increases due to rise in its temperature
13. b. Tungsten
14. c. Black
15. c. Violet
16. c. -40 Degree
17. b. Adhesion
18. a. The sun
19. b. Convection
20. d. Energy
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