Physics · General Awareness

Physics Measuring Instruments

1,180 Questions

Physics measuring instruments are essential tools used to measure various physical quantities. This topic covers devices like hygrometers, oscilloscopes, and sphygmomanometers. It is a highly scoring section in general science and general awareness examinations.

Pressure and humidity instrumentsElectrical measuring devicesMedical physics toolsNavigational instruments

Physics Measuring Instruments Questions

Multiple choice geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

Name the instrument used to measure the speed of wind.

  1. Anemometer

  2. Wind vane

  3. Hygrometer

  4. Thermometer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The term anemometer is derived from a Greek word 'anemos' which means wind. Anemometer is used to measure the speed of the wind. This instrument is used in all weather station. Tha standard height of the anemometer is 10meter in rural areas.

Multiple choice geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

What are two basic wind measurements?

  1. Direction and Pressure

  2. Pressure and Altitude

  3. Direction and Speed

  4. Pressure and Acceleration
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Direction and speed are the two basic wind measurements. Wind is always named by the direction from which it flows. The direction from which a wind blows is called windward side and towards which it blows is called Leeward did. The wind vane is the most common instrument to measure wind direction. The speed or flow velocity is an important atmospheric criterion. Wind generally blows high pressure towards the low-pressure areas due to temperature change. Anemometer is commonly used to measure wind speed.

Multiple choice geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

A self recording anemometer is known as _________.

  1. Cardiograph

  2. Anemograph

  3. Algorithmic graph

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A self-recording anemometer (Anemograph) giving a continuous trace of the direction and velocity of the surface wind. In the Dines tube anemograph, the wind pressure acts upon the opening of a tube arranged as a vane to face in the direction of the wind. Pressure is transmitted through the tube to a float carrying a pen, the height of which indicates the wind velocity.

Multiple choice geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

In an Anemometer, when the cups rotate due to wind, their speed is recorded in a/an ________.

  1. Electrically operated dial

  2. Magnetically operated dial

  3. Mechanically operated dial

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The speed of wind can be measured using a tool called an anemometer. An anemometer looks like a weather vane, but instead of measuring which direction the wind is blowing with pointers, it has four cups so that it can more accurately measure wind speed. When wind pushes into the cups, they rotate the axis.

Multiple choice social studies means of transport railways means of transport and communication modes of transport

Broad gauge, meter gauge, narrow gauge indicate ________.

  1. Berth of ships in a port

  2. Depth of water approaching a sea port

  3. Cargo terminals at airport

  4. Width between the tracks of a railway line
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Broad gauge, meter gauge, narrow gauge indicate the width between two rails. The difference in their width is as follows:

  • Broad gauge: 1.676 meters.
  • Narrow gauge: 0.762 meters.
  • Metre gauge: 1 meter.

Multiple choice evs weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate atmosphere and its components

The special thermometer used to record temperature is called as

  1. Maximum thermometer

  2. Minimum thermometer

  3. Maximum-minimum thermometer

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A maximum-minimum thermometer is a specialized instrument designed to record both the highest and lowest temperatures reached over a specific period, typically 24 hours.

Multiple choice evs weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate atmosphere and its components

When a liquid thermometer is held in direct sunlight,

  1. It will accurately measure the air temperature

  2. It will measure a much higher temperature than that of the air

  3. It will measure a much lower temperature than that of the air

  4. It will measure the temperature of the sun rather than the air
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When a thermometer is in direct sunlight, it absorbs solar radiation, causing the liquid inside to expand more than it would from the air temperature alone, leading to an artificially high reading.

Multiple choice evs weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate atmosphere and its components

Which of the following records everyday temperature?

  1. Maximum thermometer

  2. Minimum thermometer

  3. Maximum-minimum thermometer

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A maximum-minimum thermometer is designed to record the highest and lowest temperatures reached over a specific period, typically 24 hours.

Multiple choice evs weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate atmosphere and its components

The instrument for measuring rainfall is

  1. Barometer

  2. Rain gauge

  3. Thermometer

  4. Stethoscope
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A rain gauge is a specialized instrument used by meteorologists and hydrologists to gather and measure the amount of liquid precipitation over a set period.

Multiple choice evs weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate atmosphere and its components

The weather reports use thermometer to measure the

  1. Minimum temperature

  2. Maximum temperature

  3. Maximum and minimum temperature

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Weather reports typically provide the daily temperature range, which is defined by the maximum temperature reached during the day and the minimum temperature reached at night.

Multiple choice evs weather, climate and adaptations of animals to climate weather, climate and adaptation of animals to different climates climate and weather atmosphere and its components

The instrument that measures temperature, pressure, and humidity at various altitudes in the atmosphere:

  1. Barograph

  2. Radiosonde

  3. Aneroid barometer

  4. Altimeter
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A radiosonde is a weather instrument carried by a balloon that measures and transmits vertical profiles of temperature, pressure, and humidity as it ascends through the atmosphere.