Barometer was invented by

A sudden fall in barometer reading indicates ____

A

Clear weather

B

hailstorm

C

storm

D

heavy rainfall

HYGROMETER : BAROMETER

A

rain : snow

B

water : mercury

C

humidity : pressure

D

temperature : weather

An aneroid barometer

A

is very unreliable

B

can measure only atmospheric pressure

C

measures pressure by sensing deflection of an evacuated chambers.

D

can be used to measure gas or liquid flow rates

E

None of the above

Mercury is often used in barometer because

A

it is the best liquid

B

the height of barometer will be less

C

its vapour pressure is so low that it may be neglected

D

both (B) and (C)

When the barometer reading dips suddenly, it is an indication of

A

Hot weather

B

Calm weather

C

Storm

D

Dry weather

When a barometer reading suddenly recedes, it indicates that climate–

A

Will be very warm

B

Will be extremely stormy

C

Will remain cold

D

Incessant rain for at least 48

When a barometer is rising air pressure is

A

Increasing

B

Decreasing

C

Constant

D

Zero

A sudden fall in the barometer reading is a sign of approaching

A

Fine weather

B

Rains

C

Storm

D

Cold wave

Barometer is used to measure

A

Pressure in pipes, channels etc.

B

Atmospheric pressure

C

Very low pressure

D

Difference of pressure between two points

A __________ type pressure sensing element is commonly used in aneroid barometer.

A

Capsule

B

Bellow

C

Spiral tube

D

Flat diaphragm

Barometer was invented by

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