Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

Active ingredients in plants are defined as:

A. Correcting bodily functions
B. A restorative of body ailments
C. Preventing or curing diseases
D. Constituents having a medicinal action
Answer» D. Constituents having a medicinal action
2.

Carotene is a precursor of ;

A. Vitamin-C
B. Vitamin-D
C. Vitamin-A
D. Ascorbic acid
Answer» D. Ascorbic acid
3.

Bracts situated out side the calyx in certain flowers are called

A. Epicalyx
B. Epibasal
C. Epicarp
D. Epidermis
Answer» B. Epibasal
4.

Mulching can reduce water loss by:

A. 50%
B. 90%
C. 35%
D. 25%
Answer» C. 35%
5.

Which one is not the best source of protein?

A. Potatoes
B. Peas
C. Beans
D. Okra
Answer» B. Peas
6.

Iceberg bears flowers:

A. Yellow
B. Red
C. Pink
D. White
Answer» E.
7.

English Ivy (Hedera helix) is

A. Evergreen ground cover
B. Evergreen shrub
C. Diciduous shrub
D. deciduous ground cover
Answer» B. Evergreen shrub
8.

Anthesis of grapes complete at:

A. Pedicel fall
B. Calyx drop
C. Cap fall
D. None
Answer» D. None
9.

_________ removes the inhibiting substances and the organs producing them

A. Topping
B. Disbudding
C. Pinching
D. Girdling
Answer» B. Disbudding
10.

Dacca is a selected variety of:

A. Herb
B. Shrub
C. Turfgrass
D. None of these
Answer» D. None of these
11.

Which of these create overall effect of various features, styles and colour schemes of thetotal scene.

A. Harmony
B. Proportion
C. Contrast
D. Accent
Answer» B. Proportion
12.

Which vegetable having high concentration of fats.

A. Sweet potato, potato
B. Water melon, musk melon
C. Cabbage, Cauliflower
D. None of above
Answer» E.
13.

Sweet orange belongs to the family

A. Malvaceae
B. Rotaceae
C. Rutaceae
D. Chenopodiaceae
Answer» D. Chenopodiaceae
14.

Green leaves of plants are able to __________ all the vitamins that they can use :

A. Synthesize
B. Reduce
C. Uptake
D. Store
Answer» B. Reduce
15.

Citrus reticulat Blanco is the botanical name for

A. Sour lime
B. Mandarin
C. Both of a and b
D. None of these
Answer» C. Both of a and b
16.

Vegetables belonging to the cross pollinated group is

A. Peas
B. Tomato
C. a & b
D. Cabbage
Answer» E.
17.

Most of Nitrogen is used in the decomposition of __________ and thus plant showsdeficiency symptoms :

A. Amino acids
B. Cellulose
C. Carbon compounds
D. Organic matter
Answer» C. Carbon compounds
18.

The acceleration of flowering by manipulating environmental conditions is known as:

A. Pulsing
B. Forcing
C. Leaching
D. After-ripening
Answer» C. Leaching
19.

Inarching is also called as

A. cutting
B. Budding
C. approach grafting
D. non of these
Answer» D. non of these
20.

Almond and peach belongs to:

A. Same genus and spp.
B. Some germs & different spp.
C. Different genus & different spp.
D. All of above
Answer» C. Different genus & different spp.
21.

Peat is often mixed into the growing medium of container plants because it:

A. Is inexpensive
B. Has good air and water holding capacities
C. Has a high pH
D. Absorbs excessive soluble salts
Answer» C. Has a high pH
22.

Root formation is promoted in softwood cuttings under light intensity of __________foot candles:

A. 100-150
B. 150-200
C. 200-250
D. 250-350
Answer» C. 200-250
23.

Rose budded at 3 ½ feet height is called

A. Miniature rose
B. Standard rose
C. Half standard rose
D. Climbing rose
Answer» C. Half standard rose
24.

Apple and pear belongs to:

A. Same genus
B. Different sub genus
C. Different genera
D. All of above
Answer» C. Different genera
25.

Auxin antagonists compounds interact with auxins as:

A. Counteract
B. Increase
C. Decrease
D. None of the above
Answer» B. Increase
26.

Production of seeds without fertilization is termed as:

A. Parthenocarpy
B. Parthenogenesis
C. Gametogenesis
D. All of above
Answer» C. Gametogenesis
27.

Chimera refers to

A. Somatic cell fusion
B. Gametic cell fusion
C. Undiffereciated cell
D. None
Answer» B. Gametic cell fusion
28.

Nitrates are absorbed at pH below ___________:

A. 5
B. 6
C. 7
D. 8
Answer» B. 6
29.

Secondary dormancy is due to:

A. Immature Embryo
B. Chemical Inhibitors
C. Light Requirement
D. Hardseededness
Answer» D. Hardseededness
30.

Which of the following roses bear clustered flowers?

A. Hybrid tea
B. Floribunda
C. Miniature
D. All of the above
Answer» E.
31.

Which of the following tree is commonly used in the landscape of arid zone?

A. Ficus benjamina
B. Pethocelobium dulce
C. Pinus longifolia
D. Prosopis juliflora
Answer» E.
32.

Potato and sweet potato are well known for

A. Carbohydrates
B. Proteins
C. Vitamins
D. All of these
Answer» B. Proteins
33.

Stage at which seed achieves it maximum dry weight and has maximum germinationpotential and vigor is:

A. Physiological maturity
B. Edible maturity
C. Harvest maturity
D. None of above
Answer» B. Edible maturity
34.

King of temperate fruit is:

A. Mango
B. Citrus
C. Banana
D. Apple
Answer» E.
35.

Which vegetable is self pollinated

A. Peas
B. Cucumber
C. Watermelon
D. Sponge gourd
Answer» B. Cucumber
36.

Guava seed before germination requires:

A. Fungicide treatment
B. Chemical treatment
C. Commercial grade H2SO4 treatment
D. All of above
Answer» D. All of above
37.

Exposure of seed to low temperature before germination is termed as :

A. Scarification
B. Stratification
C. Vernalization
D. All of above
Answer» C. Vernalization
38.

The non-climacteric fruit is

A. Banana
B. Mango
C. Apple
D. Citrus
Answer» E.
39.

Mrs. Khan loves spring flowering bulbs. Which of the following would you suggest forMrs. Khan to plant?

A. Hyacinthus orientalis
B. Coleus x hybridus
C. Lonicera japonica
D. Gardenia jasminoides
Answer» B. Coleus x hybridus
40.

The Genus Fortunella include :

A. 7 spp.
B. 6 spp.
C. 5 spp.
D. 4 spp.
Answer» E.
41.

Truck gardening means vegetable production for:

A. Distant places
B. Industry
C. Local market
D. None of these
Answer» B. Industry
42.

Best time of propagation of fruit plants in sub tropical region is :

A. Spring season
B. Spring & autum season
C. Summer season
D. Summer and winter season
Answer» C. Summer season
43.

Quinine alkaloids are present in

A. Nux vomica
B. Cocoa leaves
C. Belladona roots
D. Cinchona bark
Answer» E.
44.

Fruiting body of roses is called:

A. Button
B. Hips
C. Slip
D. None of above
Answer» C. Slip
45.

Optimum temperature for cool season vegetables is:

A. 25-30°C
B. 25-27°C
C. 18-24°C
D. 15-20°C
Answer» D. 15-20°C
46.

Which of the following factor(s) is/are more suitable for good onion production?

A. High temperature
B. Long photoperiod
C. None of above
D. All above
Answer» E.
47.

Removal of off type plants from a seed field is termed as:

A. Weeding
B. Rouging
C. Hoeing
D. All of above
Answer» C. Hoeing
48.

Hardening-off is a term used in the nursery/landscape industry to mean:

A. Allowing herbaceous plants to become woody
B. Acclimatizing landscape plants to coldframe conditions
C. Coating plants with a protective plastic-type spray prior to transplanting
D. Acclimatizing tender plants to harsher, outdoor conditions
Answer» E.
49.

Pears are

A. Universally self compatible
B. Universally self incompatible
C. Gross compatible
D. None
Answer» C. Gross compatible
50.

Deciduous plants are mostly grown in

A. Hilly area
B. In plains
C. Along rivers
D. None of these
Answer» B. In plains