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RRB NTPC Exam General Awareness Study Material

Digitization help student to explore and study their academic courses online, as this gives them flexibility and scheduling their learning at their convenience. Kidsfront has prepared unique course material of General Awareness Physics for RRB NTPC Exam student. This free online General Awareness study material for RRB NTPC Exam will help students in learning and doing practice on Physics topic of RRB NTPC Exam General Awareness. The study material on Physics, help RRB NTPC Exam General Awareness students to learn every aspect of Physics and prepare themselves for exams by doing online test exercise for Physics, as their study progresses in class. Kidsfront provide unique pattern of learning General Awareness with free online comprehensive study material and loads of RRB NTPC Exam General Awareness Physics exercise prepared by the highly professionals team. Students can understand Physics concept easily and consolidate their learning by doing practice test on Physics regularly till they excel in General Awareness Physics.

Physics

A nuclear reaction must be balanced in terms of

a) Mass and volume
b) Energy and weight
c) Number of electrons
d) Mass and energy

✔Answer

✔Solution

Correct Answer Is : Mass and energy

Solution Is : A nuclear reaction must be balanced in term of mass energy. The mass number and total energy before the reaction must equal the total energy after the reaction

A watch spring when wound up acquires

a) Mechanical energy
b) Kinetic energy
c) Potential energy
d) Light energy

✔Answer

✔Solution

Correct Answer Is : Potential energy

Solution Is : A watch spring when wound up acquires potential energy

When water freezes its density

a) Decreases
b) Increases
c) Become zero
d) Remains constant

✔Answer

✔Solution

Correct Answer Is : Decreases

Solution Is : Water at ordinary temperatures contract and increases in density as it cooled like most substance. But at about 4?C, it reaches a maximum density and then decreases in density as it approaches the freezing point.

Which one of the following is a non-dimensional quantity ?

a) Strain
b) Co-efficient of viscosity
c) Gas constant
d) Plank`s constant

✔Answer

✔Solution

Correct Answer Is : Strain

Solution Is : Strain is a non-dimensional quantity.

The density of water is greater than the density of kerosene. If the two are mixed

a) Kerosene dissolves in water
b) They mix uniformly
c) Water floats on kerosene
d) Kerosene floats on water

✔Answer

✔Solution

Correct Answer Is : Kerosene floats on water

Solution Is : The density of kerosene oil is less than density of water. Hence it floats on top of the water layer

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RRB NTPC Exam General Awareness Study Material

Physics

A nuclear reaction must be balanced in terms of

Correct Answer Is : Mass and energy

Solution Is : A nuclear reaction must be balanced in term of mass energy. The mass number and total energy before the reaction must equal the total energy after the reaction

A watch spring when wound up acquires

Correct Answer Is : Potential energy

Solution Is : A watch spring when wound up acquires potential energy

When water freezes its density

Correct Answer Is : Decreases

Solution Is : Water at ordinary temperatures contract and increases in density as it cooled like most substance. But at about 4?C, it reaches a maximum density and then decreases in density as it approaches the freezing point.

Which one of the following is a non-dimensional quantity ?

Correct Answer Is : Strain

Solution Is : Strain is a non-dimensional quantity.

The density of water is greater than the density of kerosene. If the two are mixed

Correct Answer Is : Kerosene floats on water

Solution Is : The density of kerosene oil is less than density of water. Hence it floats on top of the water layer

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