Dear Aspirants,

We are providing the most important **General Science Previous year Questions for RRB NTPC 2019, RRB Group D 2019, SSC 2019** and all other competitive exams. These questions have very high chances to be asked in **RRB NTPC 2019, RRB Group D 2019.**

Set-16 General Science Previous Year Questions

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1.Instrument for measuring rainfall is called –

1. Lucimeter

2. Galactometer

3. Hyetometer

4. Hygrometer

Ans:3

2.Who established the foundations of the quantum theory?

1. Max Planck

2. Mark Nicholas

3. Albert Einstein

4. Alfred Hitchcock

Ans:1

3. If in a motion, the axis of the rotation passes through an object, the motion is called _________.

1. Orbital motion

2. Circulatory motion

3. Spin motion

4. Oscillatory motion

Ans:3

4.What is the angle between centripetal acceleration and tangential acceleration?

1. 90°

2. 45°

3. 0°

4. 180°

Ans:1

5. Rectifiers convert _____.

1. high voltage to low voltage

2. low voltage to high voltage

3. AC to DC

4. DC to AC

Ans:3

6. Name the first Indian who got Nobel Prize in physics.

1. C K Naidu

2. Rangnath Mishra

3. Amartya Sen

4. C V Raman

Ans:4

7.Which physical quantity is measured in ‘siemens’?

1. Electric potential

2. Electrical conductance

3. Magnetic flux

4. Refractive index

Ans:2

8.Who invented Universal Standard Time?

1. Enrico Fermi

2. Adolf Gaston Eugen Fick

3. Sandford Fleming

4. Benoit Fourneyron

Ans:3

9._____________________ states that the total current entering a junction is equal to the total current leaving the junction.

1. Lenz’s Law

2. Hooke’s Law

3. Ohm’s Law

4. Kirchhoff’s First Law

Ans:4

10.Acceleration due to gravity on a planet decreases with ______.

1. decrease in radius of the planet

2. increase in mass of the planet

3. decrease in mass of the body

4. increase in altitude from surface of the planet

Ans:4

11.Instrument for measuring wind velocity is called –

1. Coulombmeter

2. Anemometer

3. Cyanometer

4. Chronometer

Ans:2

12.Who was the ﬁrst Indian astronaut to travel in space?

1. Rakesh Sharma

2. Ravish Malhotra

3. Kalpana Chawla

4. Sheikh Muszaphar Shukor

Ans:1

13.AV= constant, where A= area of cross-section and V= velocity of fluid. This equation is called _____.

1. Equation of discontinuity

2. Equation of continuity

3. Equation of sustenance

4. Equation of parallelism

Ans:2

14.A body in equilibrium _______.

1. can move with constant acceleration

2. is always at rest

3. can move with constant velocity

4. can move with variable acceleration

Ans:3

15.What is the viscosity of an ideal ﬂuid?

1. Equal to its mass

2. Equal to its weight

3. Zero

4. One

Ans:3

16.A parachute descends slowly whereas a stone dropped from the same height falls rapidly, because –

1. Stone is heavier than parachute

2. Special mechanisms are present in parachute

3. A parachute has a larger surface area and air resistance is more

4. None of the above

Ans:3

17.Shaving mirror is –

1. Convex

2. Concave

3. Plane

4. Parabolic

Ans:2

18.The spoon dropped by an astronaut in a satellite will –

1. Fall to the floor

2. Remain stationary

3. Continue to follow the motion of the satellite

4. Move tangentially away

Ans:3

19.“Curie” is the unit of –

1. Radioactivity

2. Temperature

3. Heat

4. Energy

Ans:1

20.The Source of the sun’s energy, is the process of –

1. Photoelectric emission

2. Nuclear fission

3. Nuclear fusion

4. Thermionic emission

Ans:3