Questions and answers for exam Preparation

MCQs

Total Questions : 192 | Page 19 of 20 pages

Question 181. Which of the following best describes the motion of air on earth?

A two-dimensional vector
A one-dimensional vector
A three-dimensional vector
A four-dimensional vector

Discuss Question

Answer: Option C. -> A three-dimensional vector
Answer: (c).A three-dimensional vector

Question 182. What is the definition of wind?

Air in net motion
Air in motion
Gas molecules in random motion
Stationary gas molecules

Discuss Question

Answer: Option A. -> Air in net motion
Answer: (a).Air in net motion

Question 183. Which of the following are the three individual components/dimensions best used to describe air motion on earth?

A meridional component pointing south-to-north, a zonal component pointing north-to-east, a vertical upward component pointing from ground to sky
A zonal component pointing south-to-north, a meridional component pointing west-to-east and downward component pointing from sky to ground
A meridional component pointing north-to-south, a zonal component pointing east-to-south, a vertical upward component pointing from ground to sky
A meridional component pointing south-to-north, a zonal component pointing west-to-east, a vertical upward component pointing from ground to sky

Discuss Question

Answer: Option D. -> A meridional component pointing south-to-north, a zonal component pointing west-to-east, a vertical upward component pointing from ground to sky
Answer: (d).A meridional component pointing south-to-north, a zonal component pointing west-to-east, a vertical upward component pointing from ground to sky

Question 184. What are eddies in wind?

Areas where the global wind blows opposite to that of the net direction of wind-motion
Areas where the local wind blows in the same direction as the net direction of wind-motion
Areas where the local wind blows opposite to that of the net direction of wind-motion
Areas where the local wind blows randomly to that of the net direction of wind-motion

Discuss Question

Answer: Option C. -> Areas where the local wind blows opposite to that of the net direction of wind-motion
Answer: (c).Areas where the local wind blows opposite to that of the net direction of wind-motion

Question 185. The Coriolis force deflects the wind to the right in Northern Hemisphere until ______

equilibrium of forces is not achieved
gas molecules stop moving
water vapour evaporates
equilibrium of forces is achieved

Discuss Question

Answer: Option D. -> equilibrium of forces is achieved
Answer: (d).equilibrium of forces is achieved

Question 186. Which of the following devices indicate wind direction?

Weather vanes, windsocks
Multimeter, oscilloscope
Accelerometer
Wind’s direction cannot be measured

Discuss Question

Answer: Option A. -> Weather vanes, windsocks
Answer: (a).Weather vanes, windsocks

Question 187. What is geostrophic wind?

Wind generated due to disbalance between wind forces and Coriolis force
Wind generated due to balance between pressure gradient force and Coriolis force
A special wind generated from geothermal energy
Wind flowing in stratosphere

Discuss Question

Answer: Option B. -> Wind generated due to balance between pressure gradient force and Coriolis force
Answer: (b).Wind generated due to balance between pressure gradient force and Coriolis force

Question 188. Do wind sites need an access to transmission lines?