JAMB Agricultural Science Past Questions & Answers

1.

What is the relationship between demand and supply in agriculture?

A.

Demand in agriculture is independent of supply

B.

Demand and supply in agriculture are interdependent

C.

Supply in agriculture is determined solely by demand

D.

Demand and supply in agriculture are unrelated

Correct answer is B

In agriculture, demand and supply are interdependent factors. Demand refers to the quantity of agricultural products that consumers are willing and able to purchase at a given price. Supply, on the other hand, refers to the quantity of agricultural products that producers are willing and able to offer for sale at a given price. The relationship between demand and supply is often represented by the concept of market equilibrium.

 

2.

What is the role of agricultural extension officers in relation to farmers?

A.

To provide financial support to farmers

B.

To sell agricultural products to farmers

C.

To offer technical advice and assistance to farmers

D.

To regulate agricultural practices on farms

Correct answer is C

The primary role of agricultural extension officers is to offer technical advice and assistance to farmers. Agricultural extension officers are professionals who work closely with farmers to provide them with the necessary knowledge, information, and resources to improve their agricultural practices and increase productivity. They act as intermediaries between agricultural research institutions and farmers, translating scientific knowledge into practical guidance for farmers.

3.

What are some advantages of agricultural extension?

A.

All of the above

B.

Increased access to modern agricultural technologies

C.

Improved farm productivity and profitability

D.

Enhanced knowledge and skills of farmers

Correct answer is A

Agricultural extension services provide numerous advantages to farmers and the agricultural sector. Through agricultural extension, farmers gain increased access to modern agricultural technologies, such as improved crop varieties, efficient irrigation methods, and mechanized farming equipment. This leads to improved farm productivity and profitability.

 

4.

What is the primary purpose of agricultural mechanization?

A.

Promoting sustainable irrigation techniques

B.

Increasing crop diversity in farming systems

C.

Reducing labour requirements in agriculture

D.

Enhancing organic farming practices

Correct answer is C

The primary purpose of agricultural mechanization is to reduce labor requirements in agriculture. Agricultural mechanization involves the use of machinery, equipment, and technology to automate and streamline various farming operations. By employing mechanized tools such as tractors, harvesters, planters, and irrigation systems, farmers can increase efficiency, save time, and reduce the physical labor needed for tasks like land preparation, planting, harvesting, and irrigation.


 

5.

Which part of a tractor is responsible for providing power to the attached implements or machinery?

A.

Steering system

B.

Transmission

C.

Engine

D.

Hydraulic system

Correct answer is D

The hydraulic system of a tractor is responsible for providing power to the attached implements or machinery. It uses a fluid under pressure to transmit power from the tractor to the implements for various functions. The engine is the power source of the tractor, but it is the hydraulic system that transmits this power to the implements.