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Chimical control and toxicology TVP

Total questions: 57

Worksheet time: 29mins

Name
Class
Date
1.

An insecticide having low LC 50 value indicates

a)

More toxic

b)

Less toxic

c)

Non toxic

d)

Moderately toxic

2.

Which colour on the label of the container indicates the highly toxic pesticide?

a)

Bright Red

b)

Bright Green

c)

Bright Blue

d)

Bright yellow

3.

Expand MRL

a)

Maximum Reproduction Level

b)

Minimum Residue Limit

c)

Maximum Residue Limit

d)

Maximum Residue Level

4.

Expand DDT

a)

Dichloro Diphenyl Trichloroethane

b)

Difloro Diphenyl Trichloroethane

c)

Dibromo Diphenyl Trichloroethane

d)

Dichloro Diphenyl Trichloroethene

5.

Bacillus thuringiensis is

a)

Contact poison

b)

Stomach poison

c)

Fumigant

d)

None of the above

6.

Aluminium Phosphide is an example of

a)

Contact poison

b)

Stomach poison

c)

Fumigant

d)

None of the above

7.

Which of the following is a synthetic derivatives of nereis toxin ?

a)

Cartap

b)

Bensultap

c)

Thiocyclam

d)

All the above

8.

Which of these insecticides is derived from actinomycetes ?

a)

Nereistoxin

b)

Dimilin

c)

Plumbago

d)

Spinosad

9.

The insecticidal activity of various isomers of DDT falls in the order

a)

Para - para > meta - para > meta - ortho > ortho - ortho

b)

Meta - para > para - para > ortho - ortho > meta - ortho

c)

Ortho - ortho > meta - para > meta - ortho > para - para

d)

None of the above

10.

Which of the following is an acaricide (Miticide) ?

a)

Dimethoate

b)

Monocrotophos

c)

Dicofol (kelthane)

d)

BHC

11.

Strychnine is a poison against

a)

Cockroaches

b)

Crickets

c)

Rats

d)

Birds

12.

Chemical used against snails is

a)

Foarmaldehyde

b)

Metaldehyde

c)

Benzaldehyde

d)

Acetaldehyde

13.

The isomer of BHC which is more toxic

a)

Alpha

b)

Beta

c)

Gamma

d)

Delta

14.

Which of the following is a cyclodiene compound ?

a)

Endosulfan

b)

Endrin

c)

Heptachlor

d)

All the above

15.

Following insecticide belongs to organophosphate group

a)

Monocrotophos

b)

Carbaryl

c)

Endosulfan

d)

Kelthane

16.

Which of the following insecticide has systemic action ?

a)

Dichlovos

b)

Monocrtophos

c)

Dimethoate

d)

All the above

17.

An insecticide which is used as seed treatment for management of sucking insect pests

a)

Imidacloprid

b)

Endosulfan

c)

Decamethrin

d)

Fenvalerate

18.

An insecticide which is having both fumigant and penetrate action

a)

Monocrotophos

b)

DDVP

c)

Chlorpyriphos

d)

Phosphamidon

19.

Which of the following is a not carbamate insecticide ?

a)

Aldicarb

b)

Carbofuran

c)

Dimethoate

d)

Methomyl

20.

The insecticide which is used as soil application

a)

Phorate

b)

Carbofuran

c)

Chlorpyriphos

d)

All the above

21.

The insecticide which is being opposed by, environmentalist is

a)

DDVP

b)

Chlorpyriphos

c)

Sulphur

d)

Endosulfan

22.

The phenomenon of insect resistance to one type of insecticide, providing resistance to other insecticides with similar modes of action

a)

Multiple resistance

b)

Cross - resistance

c)

Criss cross resistance

d)

Oligo - resistance

23.

The irreversible inversion of acetyl cholinesterase is caused by

a)

Carbofuran

b)

BHC

c)

Carbaryl

d)

Malathion

24.

The pyrethroid which is used in mosquito coils

a)

Allethrin

b)

Permethrin

c)

Cypermethrin

d)

None of the above

25.

First systemic inorganic insecticide

a)

Sodium carbonate

b)

Sodium oxalate

c)

Sodium selenate

d)

Sodium bicarbonate

26.

Which of these insecticides belongs to the neonicotinoids group ?

a)

Thiamethoxam

b)

Imidacloprid

c)

Acetamiprid

d)

All the above

27.

Which of these is anti - coagulant for rats ?

a)

Zinc phosphide

b)

Aluminium phosphide

c)

Strychnine hydrochloride

d)

Warfarin

28.

Celphos tablets are used for the management of

a)

Stored product pests

b)

Field pests

c)

House hold pests

d)

None of the above

29.

Which of the following is a fumigant ?

a)

Methyl bromide

b)

Ethylene dichloride

c)

Chloropicrin

d)

All the above

30.

Ethylene dichloride is generally mixed with carbon tetrachloride in the ratio of

a)

1:3

b)

3:1

c)

1:2

d)

2:1

31.

The fumigant which is widely used in quarantine stations at entry points is

a)

Methyl bromide

b)

Ethylene dichloride

c)

Chloropicrin

d)

None of the above

32.

Which of the following fumigant will be completely phased out in developing countries by 2015 by the 1992 Montreal Convention ?

a)

Methyl bromide

b)

Ethylene dichloride

c)

Chloropicrin

d)

None of the above

33.

Which of the following fumigant depletes the ozone layer ?

a)

Phosphine

b)

Ethylene dichloride

c)

Chloropicrin

d)

Methyl bromide

34.

Sucking insect pests are effectively controlled by

a)

Systemic insecticide

b)

Stomach poisons

c)

Fumigants

d)

Contact insecticides

35.

The crop which consumes highest pesticides in India is

a)

Rice

b)

Cotton

c)

Groundnut

d)

Sugarcane

36.

The highest consumer of pesticides per unit area is

a)

India

b)

Taiwan

c)

Japan

d)

USA

37.

Following insecticide is safely recommended on vegetables

a)

Carbaryl

b)

Aldicarb

c)

Endrin

d)

Malathion

38.

Number of pesticides including Bio-pesticides formulations registered in India

a)

170

b)

200

c)

221

d)

300

39.

The insecticide used as stem injection or root feeding recommended for management of coconut black headed caterpillar is

a)

Chlorpyriphos

b)

Monocrotophos

c)

Carbofuran

d)

Malathion

40.

Following is used as a sticker along with insecticide for better spread

a)

Teepol

b)

Alcohol

c)

Phenol

d)

Charcoal

41.

Insecticide which is effective against termites

a)

Endosulfan

b)

Monocrtophos

c)

Metasystox

d)

Chlorpyriphos

42.

Which of the following is not a bio - pesticide ?

a)

Biobit

b)

Biolep

c)

Dipel

d)

Phosalone

43.

Atropine is a / an

a)

Antidote

b)

Antifeedant

c)

Repellent

d)

None of the above

44.

Universal antidote contains

a)

7 parts of activated charcoal + 3.5 Parts MgO + 3.5 Tannic acid

b)

6 parts of activated charcoal + 3 MgO + 7 Tannic acid

c)

8 parts of activated charcoal + 4.5 Parts MgO + 4 Tannic acid

d)

6 parts of activated charcoal + 3.5 Parts MgO + 4.5 Tannic acid

45.

Which of the following is a synergists ?

a)

Piperonyl butoxide

b)

Sesamin

c)

Sesamolin

d)

All the above

46.

Central Insecticides Laboratory (CIL) is located at

a)

Faridabad

b)

New Delhi

c)

Pune

d)

Madras

47.

The insecticide that is safe to bees is

a)

Phorate

b)

Endosulfan

c)

Monocrtophos

d)

Acephate

48.

The insecticide which is formulated as 100 % EC

a)

DDVP (Dichlovos)

b)

Monocrotophos

c)

Dipel

d)

Acephate

49.

The total no. of pesticides restricted for use in India is

a)

13

b)

5

c)

21

d)

25

50.

Rotenone is obtained from ______part of Derris elliptica

a)

Leaf

b)

Roots

c)

Stem

d)

Flowers

51.

For an insecticide to enter through spiracles it should have

a)

High vapour pressure

b)

Low vapour pressure

c)

No vapour pressure

d)

None of the above

52.

Which of the following is characteristic property of a contact insecticide?

a)

A polar

b)

Liphophilic

c)

Low partition coefficient

d)

All the above

53.

The resistance in insects is due to the following physiological consideration

a)

Conversion of toxicant to non toxicant metabolites

b)

Excretion of toxicant

c)

Storage of toxicant

d)

All the above

54.

In DDT metabolism which one of the following is true ?

a)

DDT is oxidized to Dichlorodiphenyl acetic acid (DDA) in rats

b)

DDT is oxidized to Dichloro benzophenone (DBP) in cockroaches

c)

DDT is oxidized to Dicofol in Drosophila

d)

All the above

55.

In resistant insects and house flies DDT is converted into

a)

Dichlorodiphenyl acetic acid (DDA)

b)

Dichloro benzophenone (DBF)

c)

Dichlorodiphenyl dichloroethane (DDD)

d)

Dichlorodiphenyl dichloroethylene DDE

56.

Spinosad is a

a)

Contact poison

b)

Stomach poison

c)

Both a and b

d)

None of the above

57.

Mode of action of spinosad is it

a)

Blocks nicotinic acetylcholine receptor

b)

Effects GABA receptor

c)

Both a and b

d)

None of the above

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