Physics ยท 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.

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Physics Measuring Instruments Questions

Multiple choice

What is the most common method for measuring head size for hats?

  1. Measuring the circumference of the head

  2. Measuring the length of the head

  3. Measuring the width of the head

  4. Measuring the height of the head
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The most common method for measuring head size for hats is to measure the circumference of the head, which is the distance around the head at the widest point.

Multiple choice

Which of the following is a common method for measuring river discharge?

  1. Current meter

  2. Acoustic Doppler current profiler

  3. Float method

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There are several methods for measuring river discharge, including using a current meter, acoustic Doppler current profiler, and float method.

Multiple choice

Which of the following is a portable device that can be used to measure the temperature and humidity of the air?

  1. Thermometer

  2. Hygrometer

  3. Weather Station

  4. Anemometer
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A weather station is a portable device that can be used to measure the temperature, humidity, and other weather conditions.

Multiple choice

Which of the following is a small, portable device that can be used to measure the altitude of a location?

  1. Altimeter

  2. Barometer

  3. Hygrometer

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

An altimeter is a small, portable device that can be used to measure the altitude of a location. It typically has a sensor that measures the air pressure, which is used to calculate the altitude.

Multiple choice

Which of the following is an example of a continuous monitoring device commonly used in intensive care units?

  1. Blood pressure cuff

  2. Electrocardiogram (ECG)

  3. Pulse oximeter

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

An electrocardiogram (ECG) is a continuous monitoring device that records the electrical activity of the heart, allowing healthcare professionals to assess heart rate, rhythm, and any abnormalities.

Multiple choice

Which monitoring device is commonly used to measure blood pressure in a non-invasive manner?

  1. Blood pressure cuff

  2. Electrocardiogram (ECG)

  3. Pulse oximeter

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

A blood pressure cuff is a non-invasive device used to measure blood pressure by inflating a cuff around the upper arm and detecting the pressure at which blood flow is occluded and then released.

Multiple choice

Which of the following is not a type of athletic equipment used for measuring distances?

  1. Tape measure

  2. Measuring wheel

  3. Laser distance meter

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

GPS is not a type of athletic equipment used for measuring distances.

Multiple choice

What is the name of the underwater breathing apparatus used in scuba diving?

  1. Snorkel

  2. Rebreather

  3. Scuba Tank

  4. Buoyancy Compensator
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A scuba tank is a high-pressure cylinder that contains compressed air or other breathing gases used in scuba diving to provide the diver with a breathable gas supply underwater.

Multiple choice

Which of the following is NOT a type of coordinate system used in Astrodynamics?

  1. Geocentric Coordinate System

  2. Heliocentric Coordinate System

  3. Ecliptic Coordinate System

  4. Galactic Coordinate System
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Galactic Coordinate System is not commonly used in Astrodynamics.

Multiple choice

What type of sensors are commonly used in MIoT for monitoring mining equipment?

  1. Temperature sensors

  2. Vibration sensors

  3. Pressure sensors

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

MIoT utilizes various types of sensors, including temperature, vibration, and pressure sensors, to collect data on the condition and performance of mining equipment.

Multiple choice

What was the log used for?

  1. Measuring the speed of a ship

  2. Determining latitude and longitude

  3. Calculating the time of day

  4. Measuring the altitude of celestial bodies
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The log was used to measure the speed of a ship. It was a rope with a knot tied at regular intervals. The rope was thrown overboard and the number of knots that passed through the sailor's hands in a certain amount of time was counted. This information was then used to calculate the speed of the ship.

Multiple choice

What was the backstaff used for?

  1. Measuring the altitude of celestial bodies

  2. Determining latitude and longitude

  3. Calculating the time of day

  4. Measuring the speed of a ship
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The backstaff was used to measure the altitude of celestial bodies, such as the sun, moon, and stars. This information was then used to determine latitude.

Multiple choice

What is the term for the device used to measure a skydiver's altitude during freefall?

  1. Altimeter

  2. Airspeed Indicator

  3. Vertical Speed Indicator

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

The device used to measure a skydiver's altitude during freefall is an Altimeter.

Multiple choice

Which medical device is commonly used to monitor a patient's electrocardiogram (ECG) during a medical examination?

  1. Stethoscope

  2. Pulse oximeter

  3. Electrocardiograph (ECG) Machine

  4. Blood pressure cuff
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An electrocardiograph (ECG) machine records the electrical activity of the heart, providing valuable information about heart rate, rhythm, and any abnormalities.

Multiple choice

What is the primary function of a pulse oximeter in a clinical setting?

  1. Measuring blood pressure

  2. Monitoring heart rate and rhythm

  3. Measuring oxygen saturation levels in blood

  4. Administering anesthesia
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A pulse oximeter is a non-invasive device used to measure the oxygen saturation levels in a patient's blood.