JNTU B.Tech II FARM MACHINERY AND EQUIPMENTS-I Previous Question Paper (April - 2018 - R13)

Define Farm Mechanization.

Write about the classification of farm machines.

Define tillage and write the objectives of tillage.

Write briefly about types of tillage.

Define swell and shrinkage.

The capacity of a truck is 12.25 m³ of earth. If the earth weights 1762 kg/ m³ in situ and 1506 kg/ m³ loose, what is the capacity of the truck expressed m³ bank measure.

Define seed metering mechanism.

Write in brief about different seeding methods.

Write about the applications of crop protection equipments.

Define drift and write about the factors effecting drift.

Write about different sources of farm Power.

A plot of 1000 × 800 m is to be drilled by a corn planter. The planter is having 6 rows with spacing of 120 cm. The speed of travel for planting is 5 kmph. Assume that the time lost in each turn is 10s and the time lost in filling the seed hopper and other interruptions is 10 min per hectare. Take an overlap of 20 cm in each run. Find the field efficiency of the machine.

An implement costing Rs. 70,000/- is expected to useful life of 10 years and trade in value of 10 percent of the initial cost. Calculate the depreciation value after 6 years by using straight line method, constant rate method and compound interest method.

Write about various heat treatment processes of metals.

Explain about Indigenous plough with a neat sketch.

Write about different types of mould boards.

Calculate the energy in kg-meter required to prepare one hectare of seed bed with following implements:

i) An indigenous plough cuts 10 cm deep and 20 cm wide triangular furrow and the unit draft is 0.5 kg/sq cm of furrow cross section. Two ploughing are required.

ii) Harrowing twice with 60 cm wide blade harrow having unit draft of 90 kg/meter width of harrow.

iii) Leveling twice with a wooden leveler 3 meter long having draft 40 kg/ meter width.

Write in brief about tractor drawn disc harrows.

Write the procedure for estimating the cost of production of earth moving Equipment.

Write a short note on basic shovel used in the earth moving operation.

Write the classification of bulldozers and explain about various operations performed with bulldozers.

Write about different types of bulldozer blades.

Write the step wise procedure for calibration of seed drill.

Maximum yield of maize is obtained with a population of 40, 000 plants per hectare. The rows are 140 cm apart and an average emergence of 85% is expected. Find, i) How many seeds per hill should be planted if hills are 140 cm apart? and ii) What would be seed spacing if crop is drilled?

Write about different type of furrow openers used in seed drill with neat sketches.

List out different seed metering mechanisms and explain about fluted roller mechanism with a neat sketch.

Explain about construction and working of hand operated knapsack sprayer with a neat sketch.

A field sprayer is operated by a tractor at a speed of 6 kmph. The sprayer boom has 15 nozzles spaced 45 cm apart. Time lost in turning is 10 percent and tank filling 5 percent. Calculate the area covered per hectare.

Explain about working of rotary duster with a neat sketch.

Write about various types of spraying nozzles.