Tnpsc Question interview questions

Atmospheric pressure is measured by an instrument called ____

1. Anemometer
2. Wind vane
3. Barometer
4. Thermometer

In weather maps, pressure distribution is shown by ____

1. Isohyets
2. Isohalines
3. Isotherm
4. Isobars

The average weight of the atmospheric air is ____ per sq.cm.at the mean sea level.

1. 1
2. 2
3. 3
4. 4

When the pressure gradient is steep, the velocity of the wind is ____

1. Very low
2. Low
3. High
4. Medium

The ___ is at the centre of the Solar system.

1. Equator
2. Polar star
3. Sun
4. Moon

The only method by which heat is transferred without a medium is ___

1. Evaporation
2. Radiation
3. Conduction
4. Convection

The visible sun rays consist of ____ colours.

1. 5
2. 6
3. 7
4. 8

____ is used to measure the temperature of a place.

1. Anemometer
2. Thermometer
3. Raingauge
4. Barometer

The surface temperature of the sun is ___ C.

1. 4800
2. 5400
3. 6000
4. 6100

The heated Earth re-radiates the heat to the atmosphere in the form of ___ wave radiation.

1. short
2. long
3. medium
4. none

Bronze is an alloy of which metals?

1. Copper and Tin
2. Zinc and Iron
3. Tin and Zinc
4. Iron and Copper

Milk is unique in its nutritive value. However it is a poor source of

1. Iron
2. Sodium
3. Copper
4. Calcium

What is the main constituent of a Pearl?

1. Calcium sulphate only
2. Calcium oxide and calcium sulphate
3. Calcium carbonate only
4. Calcium carbonate and magnesium carbonate

Gobar gas contains mainly

1. Butane
2. Carbon dioxide
3. Carbon monoxide
4. Methane

Which one among the following metals is used for making boats because it does not corrode by seawater?

1. Antimony
2. Tungsten
3. Titanium
4. Nickel

Which is/are the important raw materials required in cement industry?

1. Clay
2. Limestone
3. Gypsum
4. Limestone and clay

Which one among the following does not have an allotrope?

1. Oxygen
2. Sulphur
3. Carbon
4. Nitrogen

The elements of a group in the periodic table

1. are isobars
2. are isotopes
3. have similar chemical properties
4. have consecutive atomic numbers

Acid rain is caused by the pollution of environment by

1. nitrous oxide and sulphur dioxide
2. ozone and carbon dioxide
3. carbon dioxide and nitrogen
4. carbon monoxide and carbon dioxide

Which of the following are the two main constituents of granite?

1. Iron and silica
2. Silica and aluminium
3. Iron oxide and potassium
4. Iron and silver

Which of the following is used as an anti freezing substance in the self-starting engines?

1. Methanol
2. Ethylene glycol
3. Ethanol
4. Propyl alcohol

Which of the following compounds are responsible for “acid rain”?

1. Nitrogen dioxide
2. Sulphur dioxide
3. Both (a) and (b)
4. None of the above

Which one of the following types of glass can cut off ultraviolet rays?

1. Crookes glass
2. Jena glass
3. Pyrex glass
4. Soda glass

Monazite is an ore of

1. Iron
2. Titanium
3. Thorium
4. Zarconium

Long distance photography is facilitated by

1. Ultraviolet rays
2. Infrared rays
3. X-rays
4. Visible light

The chemical name of the lime stone is

1. Calcium sulphate
2. Calcium carbonate
3. Calcium oxide
4. Calcium chloride

The ordinary and general type of coke is

1. Peat
2. Bituminous
3. Lignite
4. Anthracite

Amalgam is a mixture of

1. Any metal and mercury
2. Any non-metal and lead
3. Any metal an fluorine
4. Any non-metal and chlorine

According to Dalton’s atomic theory, the smallest particle which can exist independently is

1. An anion
2. A cation
3. A molecule
4. An atom

Which of the following element has the highest ionisation energy?

1. Potassium
2. Caesium
3. Sodium
4. Lithium