Description : The ratio of real peripheral speed to forward speed of combine is called :- a) Velocity index b) Angular velocity index C) Reel speed index d) kinematic index
Last Answer : C) Reel speed
Description : Kinematic index of the straw Walker is as ratio (a) Angular velocity of straw Walker to angular velocity of threshing drum (b) Angular velocity of straw Walker to angular velocity of threshing drum (c) Angular velocity of straw Walker to linear velocity of combine (d) All of the above
Last Answer : (a) Angular velocity of straw Walker to angular velocity of threshing drum
Description : The average spacing of seeds or hills in field is obtained or determined by a) The ratio of linear or peripheral speed of seed pick up units (cells fingers, etc) to the forward speed of the planter b) The distance ... up units (cells) on the metering unit c) Both (a) and (b) d) None of the above
Last Answer : c) Both (a) and (b)
Description : In a combine harvester the peripheral speed of the cylinder ranges between ________ m/min.
Last Answer : 1200 to 1500
Description : While increasing the forward speed of the combine harvester speed of reel should be a) Increased in same ratio b) Decreased in same ratio c) No changes d) Doubled Ans. a
Last Answer : ans a
Description : .total grain loss in a combine increase with a. increase in forward speed b. decrease in stubble Hight c. increase in concave clearance d. all of the above
Last Answer : .total grain loss in a combine increase with a. increase in forward speed b. decrease in stubble Hight c. increase in concave clearance d. all of the above
Description : The mechanical cleaning of sugar cane is done due to A. The different in the peripheral velocity of rollers B. Rough surface provided Or the outer surface of rollers C. Blow of air which forces the extraneous material out of the machine D. All of the above
Last Answer : D. All of the above
Description : A threshing cylinder of 15cm radius is rotating at 700rpm if peripheral velocity (m/sec) will be a. 11 b.105 c. 210 d. 660
Last Answer : a. 11
Description : Speed of the cutter bar in case of combine (grain) is (a)400-550 rpm (b) 500-800rpm (c)800-1000rpm (d) 1000-1200rpm
Last Answer : a)400-550 rpm
Description : Cleaning of sugarcane is obtained at peripheral speed A. 12-15m/sec B. 18-20m/sec C. 20-25m/sec D. 25-30m/sec
Last Answer : B. 18-20m/sec
Description : Adjustment needed when thresher blows grains with chaff a.) Decreasing cylinder peripheral speed. b.) Increasing cylinder speed. c.) Decreasing feed rate. d.) Increasing cylinder
Last Answer : a.) Decreasing cylinder peripheral speed.
Description : Most important factor affecting threshing efficiency a)peripheral speed of the drum b)cylinder concave clearance c)moisture content of crop d)feed rate
Last Answer : a)peripheral speed of the drum
Description : Cylinder loss in a stationary power thresher can be reduced by increasing the : M. Cylinder peCylinder loss in a stationary power thresher can be reduced by increasing the : M. Cylinder peripheral speed N. Concave clearance O. Blower speed P. All of the above
Last Answer : M. Cylinder peripheral speed
Description : Needle bearing a roller bearing having a number of smaller diameter roller is well suited to a) Application involving oscillating motion b) Exceptionally high load capacity application at low peripheral speed c) Both (a) and (b) d) None of the above
Description : Kinematic similarity between the model and prototype signifies similarities of a) Motion b) Force c) Length d) None of the above
Last Answer : a) Motion
Description : Which of the following is a dimensionless parameter? (A) Angular velocity (B) Specific weight (C) Kinematic viscosity (D) None of these
Last Answer : (D) None of these
Description : Application rate of sprayer is affected by a. forward of speed b. number of nozzle c. rate of discharge d. all of the above
Last Answer : d. all of the above
Description : For rotary cutting blade the proper cutting quality is affected by A)rates of forward speed to blade pert pheral speed B)radius of rotation of cutting blade C)feed per blade D)all of these
Last Answer : D)all of these
Description : Durability of the fertilizer increases with a) Increase in the kinetic angle of repose b) Decrease in the kinetic angle of repose c) Decrease in the speed of the forward travel d) None of the above
Last Answer : b) Decrease in the kinetic angle of repose
Description : raft increases with increase in forward speed for most of the implement, mainly due to a) More rapid acceleration of any soil particles that is moved appreciably b) More working width c) Increased working depth d) Draft decreases with increase in speed of implement
Last Answer : a) More rapid acceleration of any soil particles that is moved appreciably
Description : 2m combine is operating at 4 kmph with an overall efficiency of 75%. The area covered by in(ha\h) will be: a. 0.4 b. 0.6 c. 0.8 d. 1.0
Last Answer : b. 0.6
Description : Wood is well suited to use as bearing on straw walker cranks in combine due to fact a) Wood corrosion resistance b) Split bearing are needed for practical purpose c) It can take radial as well as thrust loads d) No lubrication is required
Last Answer : b) Split bearing are needed for practical purpose
Description : _______ designates the shape of gross peripheral and cross-sectional boundaries of the soil working tool a) Micro shape c) Edge shape b) Macro shape d) Gross shape
Last Answer : c) Edge shape
Description : 267 .Double knives movers offers advantage over conventional mower are a)Double knife are dynamically balanced b) They can be operated at higher forward speeds then conventional mower c)They produce more uniform stubble height d)All of the above
Last Answer : d)All of the above
Description : V-belt drive transmission system is used when it is designed to achieve a) High speed ratio b) Space requirements are limited c) Both (a) and (b) d) None of the above
Description : Chain drives are stable for a) Constant speed ratio between parallel shafts b) Distance between centre to centre is moderate c) Dirty and dusty environment d) All of the above
Last Answer : d) All of the above
Description : The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. The units of __________ and COP are the same. (A) Kinematic viscosity (B) Work (C) Temperature (D) None of these
Description : The ratio of absolute viscosity to mass density is known as (A) Specific viscosity (B) Viscosity index (C) Kinematic viscosity (D) Coefficient of viscosity
Last Answer : Answer: Option C
Description : Utility index is a indication of A. Work machine contact hours B. Wear out life of machine C. Operating cost of machine D. Reliability of machine working
Last Answer : A. Work machine contact hours
Description : Volumetric efficiency is affected by (A) Turbulence velocity and temperature of intake manifold (B) Efficiency of exhaust stroke (C) Valve timing overlap (D) All the above
Last Answer : (D) All the above
Description : .In Hydraulic sprayers, the degree of atomization is primarily a function of A. Liquid pressure and the nozzle characteristics B. Air velocity C. Size of the nozzle D. Size and shape of the atomizer
Last Answer : A. Liquid pressure and the nozzle characteristics
Description : Agitator(propeller or paddle)type for agitating liquid in power sprays have a velocity of a.100-120 rpm b.60-100 rpm c.10-20 rpm d. none of the above
Last Answer : a.100-120 rpm
Description : illage tool moving with uniform velocity is subjected to A)force of gravity. B)pull of power source C)soil reaction. D)all of the above
Last Answer : D)all of the above
Description : eripheral velocity of impact cutter is about: A.50m/sec B.20m/sec C.10m/sec D.5m/sec
Last Answer : A.50m/sec
Description : In hydraulic sprayers, the degree is primarily a function of: a) Liquid pressure and the nozzle characteristics b) Air velocity c) Size of the nozzle d) Shape and size of the atomizer
Last Answer : a) Liquid pressure and the nozzle characteristics
Description : A Tillage implement moving at a constant velocity is subjected to a) Force of gravity b) Soil force (resistance) c) Pull of mower d) All of the above
Description : Suggested or recommended difference in mass to power ratio between ballasted and unballasted tractor is of the order a)10kg/PTO KW b)6kg/PTO kw c)20kg/PTO kw d)30kg/PTO kw
Last Answer : b)6kg/PTO kw
Description : In an epicycle gear reduction unit, the ratio of the number of teeth of the internal gears to the sun gear is: a) 3:1 b) 4:1 c) 2.5:1 d) 4.5:1
Last Answer : b) 4:1
Description : pecific energy requirement of rotary tillers can be reduce by a) Increasing the bite length b) Decreasing depth to diameter ratio c) Both (a) and (b) d) Excessive reduction in total power requirement
Description : .Increase the grain/non grain ratio on the shoe tends to the shoe losses (a) Decreases (b) Increases (c) Decrease or increase (d) Equal
Last Answer : (d) Equal
Description : Increase in grain/non grain ratio on the straw Walker losses (a) Decrease (b) Increases (c) Unltered (d) None of the above
Last Answer : (b) Increases
Description : Smaller tension ratio result in.... (a) Unnecessary high tension in belt (b) Reduction in belt life (c) Both (c) & (b) (d) Excessive belt slippage
Last Answer : (c) Both (c) & (b)
Description : 310- Larger tension ratio result in... (a) Unnecessary high tension in belt (b) Reduction in belt life (c) Excessive belt slippage (d) Increase belt life
Last Answer : (c) Excessive belt slippage
Description : Stroke bore ratio for tractor engine is (a) 1.25 (b) 1.45 (c) 1.75 (d) 2.00
Last Answer : (a) 1.25
Description : Increasing the grain/non-grain ratio on shoe tends to _________ the shoe losses a) Decrease b) Increase c)Decrease or increase d) Equal
Last Answer : c)Decreas
Description : Increase in grain/non-grain ratio on the straw walker, _____the straw walker losses a) Decrease b) Increase c)Unaltered d) None of the above
Last Answer : b) Increase
Description : The average working speed of a hand operated chaff fitted with two knives is _________ rev/min.
Last Answer : 35
Description : Optimum speed for grains like gram,pea,etc.,thresher using power is a) 300-400rpm b) 400-600rpm c) 600-800rpm d) 1100-1200rpm
Last Answer : a) 300-400rpm
Description : Optimum operating cylinder speed for wheat threshing using power operated thresher is a) 300-400rpm b) 400-600rpm c) 600-800rpm d) 1100-1200rpm
Last Answer : d) 1100-1200rpm
Description : Optimum operating cylinder speed for the power operated maize sheller is a) 200-400rpm b) 400-600rpm c) 600-800rpm d) 1000-1200rpm
Last Answer : c) 600-800rpm