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UIIC ASSISTANT RECRUITMENT General Awareness Study Material

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General Physics

Q.Which instrument is used for the measurement of angular distances between two objects?

a) Sexant
b) Telstar
c) Spherometer
d) Refractometer

✔Answer

✔Solution

Correct Answer Is : Sexant

Solution Is : (A)Telstar instrument is used for the measurement of angular distances between two objects.

The Outer part of a Railway track near the bend or a curve is generally raised

a) To prevent the fast wear and tear of the railway track.
b) To produce the necessary centripetal force
c) To produce the necessary gravitational force
d) To enhance the speed of train

✔Answer

✔Solution

Correct Answer Is : To produce the necessary centripetal force

Solution Is : (B) The Outer part of a Railway track near the bend or a curve is generally raised to produce the necessary centripetal force.

Q.What are Sunspots?

a) These are great flames of gases which shoot out of the sun
b) These are cooler areas which move about on the sun`s surface and show up as dark spots.
c) These are areas of the Sun where the heat is most intense which shown up as dark spots
d) These are areas of the Sun where nuclear fission takes place.

✔Answer

✔Solution

Correct Answer Is : These are cooler areas which move about on the sun`s surface and show up as dark spots.

Solution Is : (B) Sunspots are cooler areas which move about on the sun`s surface and show up as dark spots.

The number of images of an object formed by two mirrors inclined at an angle of 60° is

a) 6
b) 5
c) 4
d) 7

✔Answer

✔Solution

Correct Answer Is : 5

Solution Is : (B) The number of images of an object formed by two mirrors inclined at an angle of 60° is 5

What is the technology used in a compact disc?

a) Electrical
b) Laser
c) Electro magnetic
d) Aeronautical

✔Answer

✔Solution

Correct Answer Is : Laser

Solution Is : Laser technology is used in compact discs to store and retrieve data .

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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UIIC ASSISTANT RECRUITMENT General Awareness Study Material

General Physics

Q.Which instrument is used for the measurement of angular distances between two objects?

Correct Answer Is : Sexant

Solution Is : (A)Telstar instrument is used for the measurement of angular distances between two objects.

The Outer part of a Railway track near the bend or a curve is generally raised

Correct Answer Is : To produce the necessary centripetal force

Solution Is : (B) The Outer part of a Railway track near the bend or a curve is generally raised to produce the necessary centripetal force.

Q.What are Sunspots?

Correct Answer Is : These are cooler areas which move about on the sun`s surface and show up as dark spots.

Solution Is : (B) Sunspots are cooler areas which move about on the sun`s surface and show up as dark spots.

The number of images of an object formed by two mirrors inclined at an angle of 60° is

Correct Answer Is : 5

Solution Is : (B) The number of images of an object formed by two mirrors inclined at an angle of 60° is 5

What is the technology used in a compact disc?

Correct Answer Is : Laser

Solution Is : Laser technology is used in compact discs to store and retrieve data .

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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