Environmental Protection MCQs

Question 1

Which of the following herbicide is known to be effective against perennial shrubs, annual weeds and weeds of rice?

Accepted Answer

Cycloheximide

Answer

Anisomycin

Answer

Herbicidin

Answer

Bialaphos

Question 2

Which of the following is known to control Colorado potato beetle?

Accepted Answer

Beaveria bassiana

Answer

Metarhizium anisopliae

Answer

Verticillium lecauii

Answer

Nomuraea rileyi

Question 3

Phenols degradation in waste water of hospitals, laboratories and coal processing to coke can be achieved by using

Accepted Answer

both (a) and (b)

Answer

fungus Aureobasidium pullulans adsorbed by the fibrous asbestos

Answer

cells of Pseudomonas spp. either adsorbed to anthracite coal or entrapped on alginate gel

Answer

Phanerochaete chrysosporium

Question 4

Which of the following is the most effective for the rice sheath blight pathogen, Pellicularia sasakii?

Accepted Answer

Polyoxin D

Answer

Polyoxin B

Answer

Polyoxin L

Answer

Polyoxin C

Question 5

Which of the following subgroup/(s) belong/(s) to the Baculo viruses?

Accepted Answer

All of these

Answer

Nuclear polyhedrosis viruses

Answer

Granulosis viruses

Answer

Oryctestypes

Question 6

Which of the following accumulates from factory waste?

Accepted Answer

Zoogloea ramigera

Answer

Pseudomonas aeruginosa

Answer

Thiobacillus

Answer

Pseudomonas putida

Question 7

Which of the following can be used for the removal of color from the effluents of pulp mill?

Accepted Answer

Both (a) and (b)

Answer

Coriolus versicolor entrapped in calcium alginate beads

Answer

Phanerochaete chrysosporium

Answer

Nitrosomonas europaen

Question 8

Which of the following have been used to oxidize ammonia and to prevent algal growth?

Accepted Answer

Nitrosomonas europaen

Answer

growth of hypomicrobium in presence of added methanol

Answer

Micrococcus denitrificans cells encapsulated in liquid membranes

Answer

Both (a) and (b)