JAMB Agricultural Science Past Questions & Answers - Page 28

136.

An example of grain legume is

A.

Pea

B.

Maize

C.

Sorghum

D.

Millet

Correct answer is A

Grain legumes, also called pulses, are plants belonging to the family Leguminosae (alternatively Fabaceae) which are grown primarily for their edible seeds.

Grain legumes include beans, lentils, lupins, peas, and peanuts.

137.

What is the main use of a gunter's chain?

A.

Taking measurement of distance

B.

Determining the depth of soil moisture

C.

Calculating the slope of the land

D.

Restraining bulls

Correct answer is A

Gunter's chain is a distance measuring device used for surveying.

138.

The most efficient irrigation method on large scale farms involve the use of

A.

Overhead irrigation facilities

B.

Flooding system

C.

Underground porous pipes

D.

Shadow of system

Correct answer is A

An overhead irrigation system is a lot like a lawn sprinkler -- the basic principle is the same. Water is pumped in under pressure and sprayed down onto the plants from flat spray nozzles.

139.

Which of the following sources of farm power is most flexible and adaptable to farm operations?

A.

Animal power

B.

Wind power

C.

Human power

D.

Solar power

Correct answer is C

Human power is the main source for operating small implements and tools at the farm. Stationary work like chaff cutting, lifting, water, threshing, winnowing etc are also done by manual labour.

140.

Farm surveying can be defined as the

A.

Leveling of land during road construction

B.

Sighting of structures through a theodolite

C.

Making g measurements on land from which maps are

D.

Estimation of the type and properties of soil on a farm

Correct answer is C

Farm Surveying is defined as the process by which measurement of land is made on the farm.