Meters

Total Questions: 40

1 - Which of the following instruments is used for measuring the humidity in the air?

A ) Hygrometer ✅
B ) Barometer
C ) Hydrometer
D ) None of these

2 - Which of the following instruments used to measure water vapors in the atmosphere?

A ) Hygrometer ✅
B ) Barometer
C ) Anemometer
D ) None of these

3 - A hydrometer is used to measure which of the following quantity of a liquid?

A ) Water pressure
B ) Relativity density ✅
C ) Velocity
D ) Mass

4 - An instrument that measures air pressure is called----?

A ) Barometer ✅
B ) Thermometer
C ) Hydrometer
D ) Lactometer

5 - Which of the following is used for measure the gaseous pressure?

A ) Micrometer
B ) Manometer ✅
C ) Pyrometer
D ) Perimeter

7 - Anemometer is used to measure,-----:

A ) Air pressure
B ) Compressibility
C ) Wind speed ✅
D ) Hooke's Modulus

8 - ------is used to measure altitude from sea level?

A ) Barometer
B ) Hygrometry
C ) Altimeter ✅
D ) None of these

9 - Mercury thermometer was invented?

A ) James Gosling
B ) Ian Tunning
C ) Daniel Gabriel farenheit ✅
D ) None of these

10 - Radioactivity is measured by which device?

A ) Roll counter
B ) Geiger counter ✅
C ) Radioactivity meter
D ) None of these

Explanation:
  1. Radioactivity was  discovered by Becquerel.
  2. Radioactivity emerges from: Nuclear energy.
  3. Radioactivity is measured by which device Geiger counter.
  4. Thorium metal is not only magnetic but also radioactive Radioactive element are Plutonium, Thorium, Uranium.
  5.  Alpha rays is a positively charged particle emitted by a radioactive element.
  6. A negatively charged particle emitted by a radioactive element during radioactive decay is called a beta particle.
  7. Radioactive isotopes are used in medicine for both diagnostic imaging and treatment.
  8. A 100 g sample of a radioactive element has a half life of 5 days. 12.5grams of radioactive material will remain after 15 days.
  9. Radioactive elements have atomic number greater than82.
  10. Weak Nuclear Force is responsible for the radioactive decay of the nucleus.
  11. The radioactive material must be placed in a box of Lead.
  12. Radioactive cobalt 60 is used for curing: Cancerous cells.
  13. Radioactive isotope present in atmosphere is: carbon -14.
  14. Unstable nuclei  are radioactive.When radioactivity rays are passed through air or any gas, they cause it to Ionize.

11 - "Dosimeter" is a device used to measure:

A ) High temperature
B ) Heat radiation
C ) Radiation for safety purpose ✅
D ) The speed of wind are any other gas

12 - بھٹوں میں استعمال ہونے والے تھرما میٹر میں کون سی دھو دھاتیں استعمال ہوتی ہیں؟

A ) کاپر اور زنک
B ) کاپر اور نکل ✅
C ) سلور اور نکل
D ) سلور اور کاپر

13 - ----- is used to accelerate beam of charge particles.

A ) Amplifier
B ) Cyclotron ✅
C ) Transistor
D ) None of these

14 - A small value of current is measured by?

A ) Galvanometer ✅
B ) Ammeter
C ) Voltmeter
D ) Ohmmeter

15 - Capacitor is used to store-----:

A ) Voltage
B ) Charge ✅
C ) Current
D ) Resistance

16 - Which instrument is suitable to measure the internal diameter of a test tube?

A ) Screw gauge
B ) Feeler gauge
C ) Vernier calipers ✅
D ) Bore gauge

17 - The least count of vernier caliper is:

A ) 0.1 mm ✅
B ) 1 mm
C ) 10 mm
D ) 100 mm

18 - Chronometer is an instrument for measuring-----?

A ) Time ✅
B ) Weight
C ) Sound waves
D ) Colour contrast

19 - Which musical instrument is also known as the "mouth organ"?

A ) Oboe
B ) Flute
C ) Harmonica ✅
D ) Saxophone

20 - The reciprocal of bulk Modulus is called ------?

A ) Compressibility ✅
B ) Young's Modulus
C ) Shear Modulus
D ) None of these

21 - Which instrument is used to convey information signal from place to another?

A ) Transmitter ✅
B ) Thermometer
C ) Controller
D ) None of these

22 - Sphygmomanometer is an instrument used to measure------:

A ) Blood pressure ✅
B ) Purity of milk
C ) Thickness of water
D ) Humidity in the air

23 - Scotograph is an instrument for ----:

A ) Magnifying of an earthquake ✅
B ) Pollution in atmosphere
C ) Sound waves
D ) Growth of a part

24 - What does a seismograph measure?

A ) Electric current
B ) Rainfall
C ) Humidity
D ) Earthquake intensity ✅

25 - What does an ammetre measure?

A ) Wind speed
B ) Sound waves
C ) Effect of an earthquake ✅
D ) None of these

26 - Which instrument is used by sailors to determine direction?

A ) Thermometer
B ) Compass ✅
C ) Barometer
D ) Galvanometer

27 - What does a fathometer measure?

A ) Temperature of water
B ) Air pressure
C ) Speed of a ship
D ) Depth of the sea and ocean ✅

28 - What is measure by a glucometer?

A ) Blood glucose ✅
B ) Body temperature
C ) Blood pressure
D ) Oxygen levels

29 - Which device determines the purity of milk?

A ) Thermometer
B ) Manometer
C ) Hydrometer
D ) Lactometer ✅

30 - What does a monometer measure?

A ) Pressure of gases ✅
B ) High temperature
C ) Water flow
D ) Light intensity

31 - What is measured by a pyrometer?

A ) Magnetic fields
B ) Blood sugar
C ) High temperature ✅
D ) Wind speed

32 - Which instrument is used to measure heart and lung sound?

A ) Stethoscope ✅
B ) Hygrometer
C ) Anemometer
D ) Barometer

33 - What does an electroencephalograph record?

A ) Electrical activity of the brain ✅
B ) Lung capacity
C ) Heart rate
D ) Blood pressure

34 - What is measured using an Ergomete?r

A ) Air pressure
B ) Magnetic field
C ) Sound waves
D ) Muscle power ✅

35 - What does a PH meter measure?

A ) Temperature
B ) Wind speed
C ) pH (acidity /basicity of a solution) ✅
D ) Blood glucose

36 - What is measured using a pycnometer?

A ) Earthquake intensity
B ) Humidity
C ) Light intensity
D ) Fluid density ✅

37 - Who invented the telephone?

A ) Robert koch
B ) Graham bell ✅
C ) Density
D ) None of these

38 - Who invented the safety pin?

A ) Walter Hunt ✅
B ) Stewart harshone
C ) Charles Goodyear
D ) None of these

39 - What is my using the mercalli Scale?

A ) Wind speed
B ) Sound waves
C ) Effect of an earthquake ✅
D ) Ocean tides

40 - "Richter Scale " is used for measuring:

A ) Magnifying small objects
B ) Testing the heartbeat
C ) Aiding the blind to write ✅
D ) None of these