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.

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Physics Measuring Instruments Questions

Multiple choice chemistry composition of matter heterogeneous mixture - suspension and its properties suspension types of mixture

Apparatus used to sediment particles in supension is : 

  1. centrifuge

  2. barometer

  3. balance

  4. calorimeter

  5. battery
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Apparatus used to sediment particles in supension is centrifuge.
Calorimeter is used to measure the heat absorbed or released by a reaction.
Barometer is used to measure pressure.
Balance is used to measure weight of a substance.
Battery is used to provide electricity.

Multiple choice physics observing space: telescopes space research and satellites space travel space exploration and forms of light

First adjustment of a spectrometer is :

  1. focusing the distant object

  2. focusing the cross wires

  3. focusing the slit

  4. focusing near objects
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

First we look through the telescope at any light - coloured surface and push the eyepiece in and out until we can see the cross-wires sharply, without straining our eyes, So, first adjustment in a spectrometer is focusing of the cross wires.

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

The instrument by which blood pressure of a man can be determined is

  1. Ultrasound

  2. Blood pressure meter

  3. Stethoscope

  4. Sphygmomanometer
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
A sphygmomanometer is an instrument, often attached to an inflatable air bladder cuff and used with a stethoscope, for measuring blood pressure in an artery.
So, the correct answer is option D.
Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

Sphygmomanometer measures

  1. Blood pressure

  2. Pulse rate

  3. Rate of heart beat

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

Blood pressure is the pressure exerted by the flowing blood on the elastic walls of arteries. Blood pressure is measured in two stages- systolic and diastolic. The instrument by which we can measure blood pressure is called sphygmomanometer. In humans, the blood pressure is measured in the brachial artery.

So, the correct answer is option A.

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

The instrument by which B.P. of man is determined is 

  1. Sphygmomanometer

  2. Cardiograph

  3. Ultrasound

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

Blood pressure is regulated by the amount of water and salts. It is regulated by hormones secreted by the adrenal gland. Aldosterone regulates a number of salts and water in the blood. The fluctuation in the blood pressure is measured by Sphygmomanometer. It was invented by Samuel Siegfried Karl Ritter von Basch in 1881. Hence, the correct answer is option A.

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

The instrument by which blood pressure of a man is determined

  1. Sphygmomanometer

  2. S.P. meter

  3. Ultrasound

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

A sphygmomanometer is an instrument attached to an inflatable air bladder cuff and used with a stethoscope, for measuring blood pressure in an artery. It is estimated with reference to mmHg.

So, the correct answer is option A.

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

The instrument used for measuring blood pressure is known as

  1. ECG.

  2. Stethoscope.

  3. Sphygmomanometer.

  4. EEG.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The instrument used for measuring blood pressure is known as sphygmomanometer. The blood pressure in the measured in mm of Hg (millimetres of mercury) and recorded with systolic number first followed by diastolic. A normal blood pressure recorded would be 120/80 mm Hg.
So, the correct answer is 'Sphygmomanometer'.
Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

Blood pressure is measured by

  1. Sphygmomanometer

  2. Phonocardiogram

  3. Electrocardiogram

  4. Stethoscope
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
A. Sphygmomanometer is an instrument that measures blood pressure.
B. Phonocardiogram is a record or plot of sounds of heart.
C. Electrocardiogram is a record of electrical activity or the electric current that moves through the heart during a heart beat.
D. Stethoscope is a device by which internal sounds of body are heard.
So, the correct answer is 'Sphygmomanometer'.
Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

First sound recorded in sphygmomanometer indicates

  1. Systolic pressure

  2. Diastolic pressure

  3. Lubb

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

When using a sphygmomanometer, the first sound heard (Korotkoff sound) as the cuff pressure is released corresponds to the systolic pressure. This is when the blood first begins to flow through the artery again.

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

Fill in the blanks with suitable words given below:
The instrument used to find out the blood pressure is known as ______

  1. Serum

  2. Fibrinogen

  3. Hemoglobin

  4. Pulmonary

  5. Sphygmomanometer

  6. Ventricles
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The instrument used to find out the blood pressure is known as a sphygmomanometer. It is a device composed of an inflatable cuff which displays the pressure measured in mm Hg on the mechanical manometer. 

Hence, the correct answer is 'Sphygmomanometer' .

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

Choose correct alternative in the following statements:
Sphygmomanometer measures

  1. Pulse rate

  2. Heart beat

  3. Blood pressure

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

The sphygmomanometer is a device used to measure blood pressure. It consists of an inflatable cuff, a measuring unit and a mechanism for inflation which may be a manually operated bulb and a valve operated electrically.

Hence, the correct answer is 'Blood pressure' .