Past Questions — 2022
Discuss the types of problems in pipeline designs. A liquid of specific gravity 0.88 and absolute viscosity 6.533x10-4 N.s./m2 flows through a pipe of diameter 0.15m at the rate of 60 lit/s. If the loss of head in 100m length of pipe is 4.56m, determine whether the pipe is rough or smooth.
In a truss girder of a bridge, a diagonal consists of a 16 mm thick flat carries a pull of 750 kN and is connected to a gusset plate by double cover butt joint. The thickness of each cover plate is 8 mm. Determine the number of rivets necessary and the width of the flat required. What is the efficiency of the joint? Sketch the joint. Given: Working stress in shear in rivet = 100 N/mm2, Working stress in bearing in rivet = 300 N/mm2, Working stress in tension in plate = 0.6 x 260 MPa.
A prismatic beam of I section ABC is simply supported at A and B, where AB = 20 m and BC = 1 m, C is free end. A uniformly distributed load of 10 kN/m is acting on the beam. The cross section I beam particulars are: Flanges width = 150 mm, Thickness = 10 mm, Web thickness = 10 mm, Overall depth of beam = 300 mm. Determine the maximum value and the location of principal stress occurring anywhere in the beam.
The pressure difference in pipe of diameter D and length L due to turbulent flow depends upon the velocity V, viscosity µ, density ρ, and roughness k. Using Buckingham’s pi theorem obtain an expression for pressure difference.
Identify the reagents in the following reactions and show the mechanism: (a) reaction involving Br, (b) O2N-CHO to O2N-CH2-OH, (c) reaction involving CO2CH3, (e) reaction involving HO-CH2OH.
What is chromosomal aberration? Describe various types of chromosomal structural variations in plant cell.
Give an account on Geological Time Scale. Discuss the dominant Jurassic flora.
Define ethnobotany. Elaborate on the importance of ethnobotany in Indian context with suitable examples.
What do you mean by natural and phylogenetic system of plant classification? Give the outline of Bentham and Hooker’s plant classification. Mention its merit and demerits.
What is anomalous secondary growth? With the help of suitable diagram discuss the anomalous secondary growth in a dicotyledonous plant.
What is metabolism? Kindly explain the carbohydrate and fat metabolism in plants.
Discuss post harvest losses in fruits and vegetables. Suggest various means to avoid losses due to post harvest diseases.
What is Integrated Pest Management (IPM)? What are the five steps of IPM? Deliberate the IPM in rice?
What is Protein Energy Malnutrition (PEM)? What are the different types of PEM? What are the determinants of PEM? How PEM affecting our under five children?
Define the term transgenic? What are the different products of transgenic? What are the pros & cons of transgenic crops? How transgenic crop is going to impact the Indian agriculture?
Describe different types of mutations? Discuss the role of mutation in crop improvement with suitable examples.
What is food & Nutritional security? What is the status of food grain production and food security in Mizoram? Delineate the strategies to become self-sufficient and exporter of food grain in the North Eastern region.
What is soil erosion? What are the consequences of soil erosion? What are the factors influencing the soil erosion? Explain the measures of soil conservation.
What is Krishi Vigyan Kendra (KVKs)? How many KVKs are in Mizoram? What are the mandates of KVKs? How KVKs are impacting the agricultural development in the state?
Discuss application of various agro forestry systems on enhancing farm income and livelihood of farmers.
Explain cultural, biological and chemical control of weeds in rice and maize based cropping system.
What are the features of Soil Health Card Scheme? What is the need of Soil health Card in the country? Describe the challenges and prospects of Soil Health Card Scheme in the country?
Define ecology and give in brief its basic principles for environmental conservation. Discuss the environmental factors affecting crop distribution and production.