Seed Drills Numericals MCQ Questions & Answers

Seed Drills Numericals MCQs : This section focuses on the "Seed Drills Numericals". These Multiple Choice Questions (MCQs) should be practiced to improve the Seed Drills Numericals skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

Maximum yield of maize attained with a population of 50000 plants per hectare. The rows are 150 cm apart and on average emergence of 85% is expected. How many seeds per hill should be planted if hills are 150 cm apart?

A. 13

B. 15

C. 17

D. 19

Question 2

A 4*100 cm seed drill is to be operated at a forward speed of 3.6 km/h. The diameter of the ground wheel is 50 cm. a cup type metering mechanism with 10 cells on its periphery is used for dropping one seed in a hill. Power transmitted from the ground wheel shaft to the metering shaft with the help of chain and sprocket arrangement. If the desired plant population is 6000 per hectare and average emergence is 75% speed ratio between ground wheel shaft and metering shaft will be ____________

A. 1.98

B. 2.68

C. 7.96

D. 10.64

Question 3

A tractor drawn seed drill is operated in the field at a forward speed of 5 km/hour. The effective diameter of the ground wheel of the seed drill is 0.5 m and the transmission ratio between ground wheel and metering rollers is 1.1. if the skid of the ground wheel of the drill is 10%, the speed of metering rollers in rpm will be ______

A. 10

B. 66.421

C. 50.357

D. 58.357

Question 4

Calculate the time and power for sowing four hectares of and by a 7-furrow seed drill, going 6 cm deep. The speed of the seed drill is 4 km/hour and the pressure exerted by soil on the seed drill is 0.42 kg/cm2. The spacing between the two furrow openers is 15 cm. Loss of turning is 5%.

A. 14 hours, 2 HP

B. 11 hours, 3.46 HP

C. 10 hours, 1.82 HP

D. 8 hours, 3.11 HP

Question 5

A fluted seed drill has 8 furrow openers of single disc type. The furrow openers are spaced 25 cm apart and main drive wheel has diameter of 150 cm. How many turns of main drive wheel would occur for covering one hectare of area?

A. 1051

B. 1061

C. 1071

D. 1081

Question 6

A side dressing fertilizer applicator is to plough two bands per row on a crop with 1 m row spacing at an application rate of 600 kg/hour. If the machine is calibrated by driving it forward over a distance of 50 m, the mass of material collected from each delivery tube is _________

A. 0.75 kg

B. 1.25 kg

C. 1.50 kg

D. 3 kg

Question 7

A 4-row animal drawn wheat seed drill with 300 mm row-to-row spacing is operated at 1.5 km/h. If the time loss, based on observed total time in seeding 1 ha arc is 15% in turning, 10% in seed filling and 10% in mechanical down time, then what is the field efficiency?

A. 32%

B. 40%

C. 65%

D. 74%

Question 8

An animal drawn 3*20 wheat seed drill is equipped with a fluted roller type metering mechanism. What will be the exposed length of the fluted roller for each row if the machine is to be calibrated for seed rate of 100 kg/ha. Assuming there is no slippage in the ground wheel or in the transmission during field operations.

A. 0.0395 m

B. 0.0495 m

C. 0.0595 m

D. 0.0695 m

Question 9

Calculate the time required to sow 1 hectare of land with a bullock drawn seeder of size 5*15 cm. the operating speed is 3.5 km/h and loss due to turning is 20%.

A. 4.57 hr/ha

B. 5.57 hr/ha

C. 10.57 hr/ha

D. 12.57 hr/ha

Question 10

Calculate the cost of sowing 1 ha of land with a bullock drawn seed drill of size 5*20 cm. the speed of bullock is 3kmph. Hire charge for bullock is Rs 100 per pair/day, hire charge for seed drill is Rs 50 per day and wages for operator is Rs 100 per day of 8 hours.

A. Rs 50

B. Rs 104

C. Rs 200

D. Rs 350

Question 11

A seed drill has 8 cells on cup feed metering mechanism. The rolling of ground wheel to that of the roller is 2:3. If drilling is done at a forward speed of 3.5 km/h, spacing in the rows in mm will be ___________

A. 54.1

B. 22.53

C. 34.83

D. 116

Question 12

A seed drill drops seeds at 0.20 m intervals. The seed weight is 200 g per 1000 seeds. If row to row spacing is 0.25 m, the weed rate in kg per hectare is ________

A. 40

B. 50

C. 60

D. 70

Question 13

Calculate the seed rate per hectare of 8*16 cm seed drills, whose main drive wheel has 215 m diameter and total weight of grain collected in 20 revolutions in 42 kg.

A. 7128 kg

B. 6300 kg

C. 5000 kg

D. 4175 kg

Question 14

Calculate the time required for sowing 1 hectares of land by 5 furrows seed drill going 12 cm deep. The speed of seed drill is 3.5 km/h and pressure exerted by the soil on the seed drill is 0.42 kg/cm2. The space between furrow openers is 10 cm and turning loss is 10%.

A. 16.1 hours

B. 5.29 hours

C. 2.14 hours

D. 10 hours