Physics · General Awareness

Physics Measuring Instruments

1,123 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 precipitation elements of weather and climate :rainfall and air pressure forms of precipitation moisture in atmosphere

The modern self-recording instrument which records the quantity and the duration of rainfall on a graph paper is called as _______________.

  1. Rain gauge.

  2. Barometer.

  3. Rain graph.

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

It is asking about the instrument not the graph. The Instrument is Rain gauge.

A rain gauge (also known as an udometer, pluviometer, or an ombrometer) is an instrument used by meteorologists and hydrologists to gather and measure the amount of liquid precipitation over a set period of time.

Multiple choice geography precipitation elements of weather and climate :rainfall and air pressure forms of precipitation moisture in atmosphere

Barometer is used to measure ______.

  1. temperature

  2. pressure

  3. heat

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

A barometer is a meteorological instrument which is used to measure atmospheric pressure. Atmospheric pressure is balanced by a column of mercury in case of a mercury barometer. Mercury is used because its height can be precisely measured. A barometer can also be used to measure altitude because atmospheric pressure changes with distance above or below sea level. There are two types of barometers:- mercury and aneroid. 

Multiple choice geography environmental changes elements of weather and climate : temperature process of heat transfer in the atmosphere environmental regions (zones)

Sensitivity of a thermometer refers to _________.

  1. Amount of change in thermometric property for a unit change in temperature

  2. Minimum and maximum temperatures that thermometer can measure

  3. How quickly thermometer can register change in temperature

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

Sensitivity of a thermometer refers to the amount of change in thermometric property for a unit change in temperature. It refers to the smallest temperature change that can be detected or measured. The range of a thermometer on the other hand refers to the difference between the maximum and the minimum temperature.

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

The instrument used for measuring air pressure is called __________________.

  1. Hydrometer

  2. Anemometer

  3. Barometer

  4. Thermometer
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • The barometer is used for measuring atmospheric pressure, hence option C is correct.
  • Thermometer, is used to measure the temperature of human body.
  • Anemometer is used to measure wind speed and direction.
  • A hydrometer is used to measure the relative density of liquids.
Multiple choice geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

What is Wind Rose?

  1. Flower

  2. Instrument to measure wind flow

  3. Instrument to measure wind speed and direction

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

Wind Rose is the instrument to measure wind speed and direction of the wind. They help to identify the direction and frequency of wind in a particular place. One of the important use of Wind Rose in the construction of airport runways, so that the airplane can take the best takeoff and landing point towards and away from the wind.

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

The instrument used to measure wind direction is called _____________.

  1. anemometer

  2. wind vane

  3. thermometer

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

The instrument which used to measure wind direction is called wind vane. It is generally located at the highest point of a building. This is pointed at the direction in which the wind is blowing. Wind vane is used to predict the weather of a particular place, as the direction of wind plays important role in determining weather of a place.

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

Wind vane is also known as _____________.

  1. anemometer

  2. hygrometer

  3. recorder

  4. weather cock
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A wind vane is an instrument that shows the direction of the wind. It is generally located at the highest point of a building. It is also known as a weather clock, as it is used to predict the weather of a particular place. The direction in which the wind is blowing plays a significant role in predicting the weather of that particular place.

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.