Iván Álamo
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Meteorología Quiz on METEO TEMA 2, created by Iván Álamo on 04/01/2020.

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Iván Álamo
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METEO TEMA 2

Question 1 of 20

1

The measurement of surface temperature is made:

Select one of the following:

  • At ground level.

  • At approximately 10 metres above ground level.

  • At approximately 4 feet above ground level.

  • At approximately 4 metres above ground level

Explanation

Question 2 of 20

1

Cloud cover will reduce diurnal variation of temperature because:

Select one of the following:

  • Incoming solar radiation is partially reflected back to space and outgoing terrestrial radiation is reflected back to earth.

  • Incoming solar radiation is re-radiated back to space and atmospheric heating by convection will stop at the level of the cloud layer

  • The cloud stops the sun rays getting through to the earth and also reduces outgoing conduction.

  • Incoming solar radiation is partially reflected back to space and
    outgoing terrestrial radiation is mostly re-radiated from the cloud
    layer back to the surface.

Explanation

Question 3 of 20

1

Most accurate temperatures above the ground level are obtained by:

Select one of the following:

  • Tephigram

  • Aircraft reports

  • Temperature probes.

  • Radio sonde.

Explanation

Question 4 of 20

1

The diurnal variation of temperature is:

Select one of the following:

  • Greater over sea than overland

  • Less over desert areas than over temperate grassland.

  • Reduced anywhere by the presence of cloud.

  • Increased anywhere as wind speed increases.

Explanation

Question 5 of 20

1

Over continents and oceans, the relative temperature conditions are:

Select one of the following:

  • Warmer in winter over land, colder in summer over sea

  • Colder in winter over land, warmer in winter over sea.

  • Cold in winter over land and sea

  • Warmer in summer over land and sea.

Explanation

Question 6 of 20

1

The process of change of state from a liquid mass to a gas mass is:

Select one of the following:

  • Condensation in which latent heat is released.

  • Evaporation in which latent heat is released

  • Condensation in which latent heat is absorbed

  • Evaporation in which latent heat is absorbed by the mass

Explanation

Question 7 of 20

1

Air is classified as dry or saturated according to its relative humidity. If the
relative humidity were 95% the air would be classified as

Select one of the following:

  • Conditionally saturated.

  • Not saturated.

  • Saturated

  • Dry

Explanation

Question 8 of 20

1

On a wet bulb thermometer in an unsaturated atmosphere there will be a
reduction of temperature below that of the dry bulb thermometer because:

Select one of the following:

  • Heat is absorbed during the process of condensation.

  • Heat is released during the process of condensation.

  • Heat is absorbed by the thermometer during the process of evaporation

  • Heat is released from the thermometer during the process of
    evaporation.

Explanation

Question 9 of 20

1

Relative humidity is:

Select one of the following:

  • Air temperature over wet bulb temperature * 100.

  • Air temperature over dew point temperature * 100.

  • The actual mixing ratio of water vapour in a sample of air over the maximum mixing ratio of water vapour that this sample can contain * 100

  • The maximum amount of water vapour that a sample of air can contain over the actual amount of water vapour the sample does contain * 100.

Explanation

Question 10 of 20

1

Absolute humidity is

Select one of the following:

  • The number of water droplets in a given quantity of air

  • The mass of water vapour that a volume of air holds

  • The maximum amount of water vapour that a given quantity of air can hold.

  • The maximum number of water droplets that a given quantity of air can hold.

Explanation

Question 11 of 20

1

Wet bulb temperature would normally be lower than the dry bulb temperature
because

Select one of the following:

  • condensation causes a release of latent heat.

  • evaporation causes cooling of the bulb.

  • latent heat is absorbed by the bulb thermometer.

  • of condensation on the muslin wick of the bulb

Explanation

Question 12 of 20

1

The wet bulb temperature

Select one of the following:

  • Is measured using a hydromete

  • Is the minimum temperature to which a thermometer bulb can be
    cooled by the evaporation of water

  • Measures the dew point of air

  • Is the minimum temperature reached by the surface of the earth as
    measured by a thermometer placed 1.2 metres above the ground.

Explanation

Question 13 of 20

1

Which one of the following statements relating to atmospheric humidity is
correct:

Select one of the following:

  • If the air temperature falls then the absolute humidity must increase

  • The absolute humidity is the mass of water vapour contained in unit volume of air.

  • The diurnal variation of dewpoint temperature is greatest when skies are clear at night

  • The dewpoint temperature is the temperature indicated by the wet bulb thermometer.

Explanation

Question 14 of 20

1

When condensation takes place, the higher temperature, the _____ the amount of
latent heat_____:

Select one of the following:

  • lesser released

  • grater absorbed

  • greater released

  • lesser absorbed

Explanation

Question 15 of 20

1

When water vapour changes to ice:

Select one of the following:

  • Latent heat is absorbed.

  • Specific heat is released

  • Latent heat is released.

  • Specific heat is absorbed.

Explanation

Question 16 of 20

1

Throughout the 24hrs of a day the Relative Humidity can be expected to:

Select one of the following:

  • Increase during the day and decrease at night.

  • Stay reasonably constant throughout the 24 hours.

  • Reduce during the day and increase at night.

  • Only change with a change of airmass.

Explanation

Question 17 of 20

1

During a night with a clear sky, surface temperature will_____RH will_____
and dewpoint will_____:

Select one of the following:

  • Fall, rise rise

  • Rise, rise, fall.

  • Fall, rise, remain the same.

  • Fall, fall, remain the same

Explanation

Question 18 of 20

1

A change of state directly from a solid to a vapour or vice versa is:

Select one of the following:

  • Insolation

  • Condensation

  • Evaporation

  • Sublimation

Explanation

Question 19 of 20

1

The instrument used for measuring the humidity of air is a:

Select one of the following:

  • Hydrometer

  • Hygrometer

  • Wet bulb thermometer

  • Hygroscope

Explanation

Question 20 of 20

1

The process of change of state from a gas to a liquid is:

Select one of the following:

  • Evaporation in which latent heat is absorbed.

  • Evaporation in which latent heat is released.

  • Condensation in which latent heat is absorbed.

  • Condensation in which latent heat is released.

Explanation