General Knowledge and General Studies Quiz for RRB NTPC & SSC CGL: Set 189

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General Knowledge and General Studies Quiz: Set 189

General Science – Physics

1. Which one is the unit of surface tension of a liquid
   (a) newton /m²
   (b) electron volt /cm²
   (c) joule / mm
   (d) None of the above
2. Sound travels fastest in
   (a) Air
   (b) Water
   (c) Steel
   (d) Vacuum
3. What is the unit of Magnetic Induction
   (a) Ohm
   (b) Farad
   (c) Volt
   (d) Henry
4. The speed of sound in air depends on
   (a) Frequency
   (b) Temperature
   (c) Wavelength
   (d) None of the Above
    
5. If electric resistance is to be decreased, then the number of resistance should be connected in ___________
   (a) Series
   (b) Parallel
   (c) Mixed arrangement
   (d) None of the above
    
6. Eddy current is generated by
   (a) Conduction
   (b) Induction
   (c) Convection
   (d) Direct Current
    
7. Energy per unit volume is dimensionally equal to
   (a) Pressure
   (b) Force
   (c) Density
   (d) Work
    
8. A body falling through a liquid acquires a steady velocity known as
   (a) End velocity
   (b) Touch down velocity
   (c) Terminal velocity
   (d) Steady state velocity
    
9. In quantum mechanics a particle is represented by a
   (a) Wave
   (b) Wave packet
   (c) Particle
   (d) None of the above
    
10. Thermal expansion of materials arises from
    (a) Strong bonds
    (b) Thermal vibrations
    (c) Weak bonds
    (d) Asymmetry of potential energy curve

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