Question

What is a Knot?
(A) Unit of measuring wind velocity
(B) Unit of measuring air pressure
(C) Unit of measuring temperature
(D) Condition of sky

Answer 1

Hint: Knot is a unit of measurement to measure the speed and velocity and used in meteorology, maritime and aviation. It is denoted by kn or kt.

Complete step-by-step answer:
Knot is a measurement unit used to measure speed. This is equal to 1 nautical mile per hour which is equal to 1.852km/h and equal to 1.150 mph and 0.514m/s. Knot is denoted by kn by the ISO standard system.
This unit is common in aviation and used in maritime, meteorology and air navigation. They are also used to measure speeds of vessels in fluids, air speeds, tidal streams, wind speed and even river currents. Since the knot is related to latitude and longitude geographic coordinate system it is important to retain these nautical and aviation uses even if it does not fit into the S.I system of unit and measurements.

Hence, this unit is used to measure wind velocity and the correct option is A.

Note: Speed over ground (SOG) in aircrafts and the rate of progress towards a distant point are given by knots.