Chapter 8 Weather Instruments, Maps and Charts | NCERT Important MCQs for  Class 11th Geography : Practical Work in Geography

1. Choose the right answer from the four alternatives given below.

Question 1(i).
Which department prepares the weather map of India for each day?
(a) The World Meteorological Organisation
(b) The Indian Meteorological Department
(c) The Survey of India
(d) None of these.
Answer:
(b) The Indian Meteorological Department

Question 1(ii).
Which two liquids are used in maximum and minimum thermometers?
(a) Mercury and water
(b) Water and alcohol
(c) Mercury and alcohol
(d) None of these.
Answer:
(c) Mercury and alcohol

Question 1(iii).
Lines connecting the places of equal pressure are called
(a) Isobars
(b) Isohyets
(c) Isotherms
(d) Isohels.
Answer:
(a) Isobars

Question 1(iv).
The primary tool for weather forecasting is
(a) Thermometer
(b) Barometer
(c) Maps
(d) Weather charts.
Answer:
(d) Weather charts

Question 1(v).
If there is more humidity in the air, the difference between the readings of a dry bulb and a wet bulb will be
(a) Less
(b) More
(c) Equal
(d) None of these.
Answer:
(a) Less.

Class 11 Practical Work in Geography Chapter 8 Multiple Choice Questions

Question 1.
Which of the following element of weather is measured through dry and wet thermometer?
(a) Temperature
(b) Humidity
(c) Pressure
(d) Wind Velocity.
Answer:
(b) Humidity

Question 2.
Weather charts are shown:
(a) Through Coding
(b) Through Information System
(c) Through Millibar
(d) Through Pressure Instruments.
Answer:
(a) Through coding

Question 3.
Which unit is used for measuring pressure?
(a) Centigrade
(b) Millibar
(c) Millimeter
(d) Centimeter.
Answer:
(b) Millibar

Question 4.
Weather charts do not help to recognize:
(a) Air masses
(b) Pressure systems
(c) Fronts
(d) Fog.
Answer:
(d) Fog

Question 5.
(a) What is the air pressure at sea level under normal condition?
(а) 500 gram per sq centimeter
(b) 800 gram per sq centimeter
(c) 1.03 kg per sq centimeter
(d) 2.06 kg per sq centimeter.
Answer:
(c) 1.03 kg per sq centimeter

Question 6.
Where are Central Observatory of India located?
(a) New Delhi
(b) Pune
(c) Kolkata
(d) Chennai.
Answer:
(b) Pune

Question 7.
These are lines connecting places of same mean’ daily duration of sunshine. What are these lines called?
(a) Isobars
(b) Isohyets
(c) Isotherms
(d) Isohels.
Answer:
(d) Isohels

Question 8.
What are lines connecting places of equal amount of rainfall over a given period of time called?
(a) Isobars
(b) Isohyets
(c) Isotherms
(d) Isohels.
Answer:
(b) Isohyets

Question 9.
What are the lines connecting places of same pressure called?
(a) Isobars
(b) Isohyets
(c) Isotherms
(d) Isohels.
Answer:
(a) Isobars

Question 10.
What are the lines connecting places of same mean value of cloud cover called?
(a) Isobars
(b) Isohyets
(c) Isonephs
(d) Isobits.
Answer:
(c) Isonephs.