List of practice Questions

The colour of beetroot is attributed to which of the following compound?
Thermal efficiency of diesel engine is:
Which of the following statements about tillage are correct?
(A) Tillage operation in which nearly 30% crop residues are left on the soil surface is called conventional tillage
(B) An open trench left in between two adjacent strips of land after finishing ploughing is called dead furrow.
(C) Jethro Tull was known as father of tillage
(D) Conservation tillage has mitigation effect on climate change
Consider the following statements regarding chrysanthemum:
(A) Corms are used for propagation
(B) Y2K is a variety of chrysanthemum
(C) De-suckering is the removal of new shoots that develop from the base of the plant
(D) Chrysanthemum is a short-day plant for flower bud initiation
The formula of gypsum is:
What was the name of ‘The Commission for Agricultural Costs and Prices (CACP)’ prior to 1980?
Which of the following exchangeable sodium percentage is characteristic of alkaline soils?
Which of the following statements about correlation coefficient and regression coefficients are correct?
(A) The correlation coefficient is unaffected by change of origin and scale
(B) Regression coefficients are independent of change of origin but not of scale
(C) Correlation coefficient is the geometric mean of two regression coefficients
(D) If one regression coefficient is greater than 1, the other must also be greater than 1
Certain bacteria living in the soil convert nitrates into nitrites and then to free nitrogen. Such bacteria are termed as:
Consider the following statements and choose the correct statements:
(A) Sugarcane has kranz anatomy in their leaves
(B) Maize is a C4 plant
(C) Photolysis of water in photosynthesis require $Mg^{2+}$ ions
(D) C4 pathway of photosynthetic $CO_2$ fixation was discovered by Hatch and Slack
During seed germination, its stored food is mobilized by:
Match List-I with List-II (Scientist and Scientific Contribution).
The following are the steps of chemiosmotic ATP synthesis in the light reaction. Arrange them in correct order of their occurrence:
(A) H+ diffuse through ATP synthetase and it makes ATP.
(B) Electrons from PS-II pass along electron transport chain
(C) H+ concentration gradient generates across the membrane
(D) Light excites electrons in PS-I
The technique of growing plants in nutrient solution, in complete absence of soil, can be employed for:
(A) Identification of essentiality of mineral elements
(B) Commercial production of vegetables
(C) Studying the deficiency symptoms of a particular element
(D) Conservation of germplasm
Arrange the following steps in the correct sequence for implementing an agricultural extension programme:
(A) Developing extension materials
(B) Implementing the programme
(C) Evaluating the programme
(D) Conducting needs assessment
Diffusion of an innovation occurs through a step process. Arrange the following stages in the adoption process in sequential order:
(A) Decision
(B) Implementation and Confirmation
(C) Persuasion
(D) Knowledge
In a normally distributed population, the number of observations falling within the range Mean ± S.D. is approximately:
Which of the following is not a measure of dispersion?
Which of the following marketing concepts involves dividing a market into distinct groups of buyers based on their needs, characteristics, or behavior, who may require different products or marketing mixes?
While conducting a chi-square test to examine the independence of attributes in an m × n contingency table, what formula determines the degree of freedom?
Horizontal growth of seedling, swelling of axis and apical hook formation of dicot seedlings are associated with -
In which crop and year was the first All India Co-ordinated Research Project set up in India with the assistance of Rockefeller Foundation of the USA?
‘Indian Farming’ magazine is a publication of -
Normal seedlings upon putting in dark, for few days, get converted into white like albinos. Which of the following terms will you use to describe them?
Which of the following statements is/are correct about photosynthesis?