JAMB Agricultural Science Past Questions & Answers - Page 51

251.

Ginger is propagated by

A.

Suckers

B.

Rhizomes

C.

Seeds

D.

Tuber

Correct answer is B

Ginger is propagated by portions of rhizomes known as seed rhizomes.

252.

The followings are functions of a sprayer except

A.

It can be used to control the growth of weeds

B.

It can be used to control the effects of pest

C.

It can be used to plant seeds

D.

It can be used to spray disinfectant

Correct answer is C

Sprayers are types of equipment designed to spray certain chemicals in various farm operations and not for planting seeds.

253.

Ginning is a method of processing

A.

Cocoa

B.

Cotton

C.

Oil palm

D.

Palm kernel oil

Correct answer is B

Ginning is the first mechanical process involved in processing cotton. Grinning is the process of removing seeds and debris from cotton thereby turning it into yam.

254.

Which of the following is not a type of harvester?

A.

Plough

B.

Mower

C.

Forage Harvester

D.

Combine Harvester

Correct answer is A

PLOUGH:This is a primary tillage implement which is attached to a tractor. It is the first implement required in land preparation. Others are types of harvester.

 

255.

The following are types of planters except

A.

Broadcast crop planter

B.

Row crop planter

C.

Grain drill planter

D.

Ridger planter

Correct answer is D

RIDGER: It is a secondary tillage implement used for land preparation, it is used after harrow and before planter.