Measuring Devices and Scales – Old Year Questions
1. Which one of the following instruments is used for locating submerged objects in an ocean?
(a) Audiometer
(b) Galvanometer
(c) Sextant
(d) SONAR
[U.P. R.O./A.R.O. (Pre) (Re. Exam) 2016, U.P.P.C.S. (Pre) 2000]
2. SONAR is mostly used by–
(a) Astronauts
(b) Doctors
(c) Engineers
(d) Navigators
[Chhattisgarh P.C.S. (Pre) 2011]
3. In SONAR, we use –
(a) Radio waves
(b) Audible sound waves
(c) Ultrasonic waves
(d) Infrasonic waves
[U.P.P.C.S. (Mains) 2013]
4. The apparatus used to measure the intensity of sound is :
(a) Chronometer
(b) Anemometer
(c) Audiophone
(d) Audiometer
[M.P.P.C.S. (Pre) 1990]
5. Which of the following is measured by an ‘Anemometer’?
(a) Velocity of water flow
(b) Depth of water
(c) Force of the wind
(d) Intensity of light
[M.P.P.C.S. (Pre) 2012]
6. The velocity of wind is measured by :
(a) Barometer
(b) Anemometer
(c) Hydrometer
(d) Wind vane
[U.P.P.C.S. (Pre) 2016]
7. Which one of the following is not correctly matched –
(a) Anemometer – Wind speed
(b) Ammeter – Electric current
(c) Tacheometer – Pressure difference
(d) Pyrometer – High temperature
[U.P.P.C.S. (Pre) 1997]
8. The device to measure electric current is –
(a) Voltmeter
(b) Ammeter
(c) Voltameter
(d) Potentiometer
(e) None of the above/More than one of the above
[65th B.P.S.C. (Pre) 2019]
9. A pyrometer is used to measure –
(a) Air pressure
(b) Humidity
(c) High temperature
(d) Density
[Chhattisgarh P.C.S. (Pre) 2011, U.P.P.C.S. (Mains) 2008, Uttarakhand P.C.S. (Pre) 2006, U.P.P.C.S. (Spl.) (Mains) 2004, U.P.P.C.S. (Pre) 1998]
11. Which one of the following thermometers is known as a pyrometer?
(a) Thermo-electric thermometers
(b) Radiation thermometers
(c) Gas thermometers
(d) Liquid thermometers
[U.P. P.C.S. (Pre) 2016]
12. The thermometer which used to measure 2000°C temperature is –
(a) Gas thermometer
(b) Mercury thermometer
(c) Total radiation pyrometer
(d) Steam pressure thermometer
[U.P.P.C.S. (Pre) 2009]
13. Which one of the following can be used to measure temperature above 1500° C?
(a) Clinical thermometer
(b) Thermoelectric couple thermometer
(c) Platinum resistance thermometer
(d) Pyrometer
[U.P. Lower Sub. (Pre) 2013, U.P. U.D.A./L.D.A. (Spl.) (Pre) 2010]
14. ‘Pyrheliometer’ is used for measuring :
(a) Sunspots
(b) Solar radiation
(c) Air temperature
(d) Temperature of plants
[U.P.P.C.S. (Pre) (Re. Exam) 2015]
15. What is measured by a manometer?
(a) Air pressure
(b) Pressure of gas
(c) Density of liquids
(d) Pressure of oil on the surface
[U.P.P.C.S. (Pre) 1990]
16. Match List-I with List-II and select the correct answer using the codes given below:
List – I | List – II |
(Instrument) | (Measuring quantity) |
A. Ammeter | 1. Pressure |
B. Hygrometer | 2. Weight |
C. Spring balance | 3. Electric current |
D. Barometer | 4. Relative humidity |
Code :
A B C D
(a) 2 3 4 1
(b) 3 4 2 1
(c) 4 1 2 3
(d) 1 2 3 4
[U.P.U.D.A./L.D.A (Pre) 2001]
17. Which one of the following pairs is not correctly matched?
(a) Odometer: Measuring instrument for distance covered by motor wheels
(b) Ondometer: Measuring instrument for frequency of electromagnetic waves
(c) Audiometer: Device for measuring sound intensity
(d) Ammeter: A measuring instrument for electric power
[U.P. Lower Sub. (Pre) 2015]
19. Which instrument is used to measure atmospheric pressure?
(a) Hydrometer
(b) Barometer
(c) Manometer
(d) Hygrometer
[U.P.P.S.C. (GIC) 2010, M.P.P.C.S. (Pre) 2000]
20. The liquid/liquids used in the simple barometer is /are :
(a) Water
(b) Mercury
(c) Alcohol
(d) All of the above
[M.P.P.C.S. (Pre) 2016]
21. The density of milk can be obtained by the use of :
(a) Hydrometer
(b) Butyrometer
(c) Lactometer
(d) Thermometer
[M.P.P.C.S. (Pre) 2006]
22. Relative humidity is measured by :
(a) Hydrometer
(b) Hygrometer
(c) Lactometer
(d) Potentiometer
[U.P.P.C.S. (Pre) 1996, U.P.P.C.S. (Pre) 1995]
27. Which of the following is correctly matched?
(a) Thermoresistor – Electronic Thermometer
(b) Capacitor – Thermometer
(c) Bipolar Junction Transistor – Rectifier
(d) Junction Diode – Amplifier
[U.P. R.O./A.R.O. (Pre) 2016]
28. Electroencephalogram (EEG) is used in monitoring
(a) Heart
(b) Liver
(c) Pancreas
(d) Brain
(e) None of the above / More than one of the above
[64th B.P.C.S. (Pre) 2018]
29. Match List I with List II and select the correct answer from the codes given below the lists :
List-I | List-II |
A. Stethoscope | 1. To measure the intensity of light |
B. Sphygmomanometer | 2. To check the purity of gold |
C. Caratometer | 3. To hear heart sound |
D. Luxmeter | 4. To measure blood pressure |
Code :
A B C D
(a) 1 2 3 4
(b) 4 3 2 1
(c) 3 4 2 1
(d) 2 1 4 3
[U.P.P.C.S. (Pre) 2008]
30. The name of the equipment used for measuring blood pressure is :
(a) Tacheometer
(b) Sphygmomanometer
(c) Actiometer
(d) Barometer
[U.P.P.C.S. (Pre) 2007]
31. The apparatus used to measure the intensity of light is known as –
(a) Anemometer
(b) Colorimeter
(c) Luxmeter
(d) Altimeter
[U.P.P.C.S. (Spl) (Mains) 2004]
32. Radar is used for :
(a) Detecting objects by using light waves
(b) Refecting sound waves to detect objects
(c) Determining the presence and location of objects with radio waves
(d) Tracking rain-bearing clouds
[U.P.P.C.S. (Pre) 2008, U.P.P.C.S. (Pre) 1996, U.P.U.D.A./L.D.A. (Pre) 2001, U.P. Lower Sub. (Pre) 2004]
33. Which of the following quantities is measured on the Richter scale?
(a) Speed of a glacier
(b) Population growth
(c) Intensity of an earthquake
(d) Temperature inside the earth
[R.A.S./R.T.S.(Pre) 2003]
35. The Richter scale is used for measuring –
(a) Velocity of sound
(b) Intensity of light
(c) Amplitude of seismic waves
(d) Intensity of sound
[U.P.P.C.S. (Spl) (Mains) 2008]
36. Which one is not correctly matched?
(a) Celsius – Temperature
(b) Kilowatt hour – Electricity
(c) Rh factor – Blood
(d) Richter scale – Humidity
[Uttarakhand P.C.S. (Pre) 2002]
37. Which of the following is a seismometer device?
(a) Crescograph
(b) Seismograph
(c) Geiger Counter
(d) Raingauge
[U.P.P.C.S. (Pre) 1990]
38. The intensity of an earthquake is measured by?
(a) Barometer
(b) Hydrometer
(c) Polygraph
(d) Seismograph
[M.P.P.C.S. (Pre) 2015]
40. Match List-I with List-II and select the correct answer from the codes given below the lists :
List-I | List-II |
A. Earthquake | 1. Ammeter |
B. Height | 2. Seismograph |
C. Electric current | 3. Altimeter |
D. Resistance | 4. Ohm |
Code :
A B C D
(a) 2 3 1 4
(b) 2 3 4 1
(c) 1 3 4 2
(d) 3 2 4 1
[U.P.P.C.S. (Pre) 1992]
41. Match the correct :
A. Fathometer | 1. Atmospheric pressure |
B. Barometer | 2. Atmospheric humidity |
C. Hygrometer | 3. Height |
D. Altimeter | 4. Depth of sea |
Code :
A B C D
(a) 2 3 1 4
(b) 4 1 2 3
(c) 4 2 3 1
(d) 3 1 2 4
[Chhattisgarh P.C.S. (Pre) 2003]
42. A Fathometer is used to measure :
(a) Earthquake
(b) Rain
(c) Depth of sea
(d) Sound intensity
[M.P.P.C.S. (Pre) 2015]
43. Match List-I with List-II and select the correct answer from the codes given below the lists :
List – I | List – II |
A. Anemometer | 1. Earthquakes |
B. Seismograph | 2. Atmospheric Pressure |
C. Barograph | 3. Wind velocity |
D. Hygrometer | 4. Humidity |
Code :
A B C D
(a) 1 2 3 4
(b) 4 1 2 3
(c) 4 1 3 2
(d) 3 1 2 4
[U.P.P.C.S. (Mains) 2012, Uttarakhand Lower Sub. (Pre) 2010]
44. Which one of the following is not correctly matched :
(a) Manometer – Pressure
(b) Carburetor – Internal combustion engine
(c) Cardiograph – Heart movement
(d) Seismometer – Curvature of surface
[U.P.P.C.S. (Pre) 1999, U.P.P.S.C. (GIC) 2010]
45. A phonometer is used to measure which one of the following?
(a) The power of brightness of light
(b) Extremely high temperature
(c) Frequency of electromagnetic wave
(d) Atmospheric humidity
[U.P.P.C.S. (Mains) 2014]
46. The apparatus used for detecting lie is known as –
(a) Polygraph
(b) Pyrometer
(c) Gyroscope
(d) Kymograph
[U.P. Lower Sub. (Pre) 2013]
47. The instrument, used for measuring angular distances in the vertical plane (elevation) and the horizontal plane (azimuth), is :
(a) Bevel protractor
(b) Altimeter
(c) Syncline
(d) Theodolite
[Chhattisgarh P.C.S. (Pre) 2020]
Key Facts for Revision
- SONAR (Sound Navigation and Ranging) is the instrument of finding things that are underwater.
- Navigators usually make use of SONAR.
- SONAR uses ultrasonic waves to detect, locate, and measure the distance of underwater objects.
- RADAR stands for Radio Detection and Ranging. It means using radio waves to figure out the range, angle, or speed of things.
- An Audiometer measures how loud sound is
- An Anemometer measures wind speed and force
- Chronometer is a very accurate clock
- Audiophone is a type of device that helps people hear better.
- Tacheometer calculate the distance to a target
- Pyrometer measure high temperature. It does this by detecting the infrared or visible radiation coming from the object. Hence, called Radiation thermometers. It follows the Stefan-Boltzmann law, which states that the heat given off by something is related to its absolute temperature. It can be used to measure the temperature of the sun too.
- A pyrheliometer and a pyranometer are both instruments used to measure solar radiation, but they measure different types of radiation.
- A manometer is a tool that measures the pressure of liquids or gases. It uses a tube filled with liquid to measure the pressure.
- A hygrometer is used to measure the relative humidity in the air.
- Odometer: distance covered by motor wheels
- Ondometer: frequency of electromagnetic waves
- Electroencephalogram (EEG) is used in monitoring of brain.
- A lactometer measures how dense milk is while a butyrometer measures how much fat is in milk or milk products.
- If the mercury inside the barometer suddenly drops, that usually means a thunderstorm is coming.
- A thermoresistor is an electronic thermometer that alters its resistance when the temperature changes.
- The stethoscope is a tool that doctors use to listen to a patient’s heartbeat.
- A sphygmomanometer measures blood pressure.
- A caratometer is used to check the quality of gold.
- A lux meter is used to measure the intensity of light.
- Earthquakes create vibrations that can be tracked by a tool called a Seismograph.
- In the early 1900s, Sir Jagadish Chandra Bose invented a device to measure plant growth called a Crescograph.
- A Raingauge is used to measure rain.
- Geiger Counter is a tool to detect radiation.
- A phonometer is a tool used to measure how loud someone speaks.
- A photometer is used to measure the brightness of light.
- Theodolite is used for measuring angular distances in the vertical plane (elevation) and the horizontal plane (azimuth).
- Polygraph is known as a lie detector.
- A kymograph is a device that records motion or pressure as a graph over time.
- A gyroscope is a device that measures or maintains the orientation and angular velocity of an object.
- A carburetor is a device that mixes fuel and air in a gasoline engine to create a gas that powers a vehicle.
- Cardiograph measure Heart movement.
- A Fathometer is used to measure deapth of sea.