MCQs on Hydroponic System
Q. Which of these is the fibre obtained from the coconut’s husk
A. Perlite
B. Vermiculture
C. Coir
D.Rockwool
Answer: : C.
Q. The form of hydroponics that does not require a growing medium at all is
A. Aquaculture
B . Static solution culture
C. Medium culture
D.Aeroponics
Answer: : (d)
Q. Plants with larger roots can be cultivated with which of the following types of hydroponics
A. Ebb and flow system
B . Drip system
C. Nutrient Film technique
D.None of these
Answer: : C.
Q. Hydroponics is a method of cultivation of plants without the use of
A. water
B . air
C. soil
D.sunlight
Answer: : C.
Q. Which of the following is not true about hydroponics?
A. Requires high investment
B . Technical knowledge required
C. Can be misused to cultivate banned crops
D.Plants through hydroponics cannot be cultivated everywhere
Answer: : (d)
Q. Salts and water in hydroponic plants are absorbed by
A. Leaves
B . Stem
C. Roots
D.Outer Layer of plants
Answer: : (d)
Q. The scientist who used nutrient culture solution in hydroponic cultures was
A. Knop
B . Sachs
C. Wallace
D.Webster
Answer: : A.
Q. Deficiency of mineral nutrition does not cause which of these
A. Chlorosis
B . Etiolation
C. Necrosis
D.Shortening internode
Answer: : B .
Q. Roots of a plant in hydroponics are submerged in a solution of dissolved _________
A. fertilizers
B . oxygen
C. mineral salts
D.chemicals
Answer: : A.
Q. Which of these plants may not be suitable for cultivation through hydroponics
A. Tomatoes
B . Carrot
C. Cucumber
D.Strawberries
Answer: : B .
