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 : The ratio of reel 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 index
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 : 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 : Piston speed for high speed engine is (a) 300-500 m/min (b) 100-300 m/min (c) 500-700 m/min (d) >700m/min
Last Answer : (a) 300-500 m/min
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 : 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 : 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 : 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 : The average working speed of a hand operated chaff fitted with two knives is _________ rev/min.
Last Answer : 35
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
Description : Thresher blows broken grains with chaff due to a) Higher cylinder speed. b) More feed Rate c) More cylinder concave clearance d) Moisture content of the crop is more
Last Answer : a) Higher cylinder speed.
Description : Increasing the cylinder speed result in (a) Increase threshing efficiency (b) Reduce cylinder loss (c) Increase seed damage (d) All of the above
Last Answer : (a) Increase threshing efficiency
Description : iesel engine has less reserve torque then spark ignition because ∙ Torque-speed curve is governed by volumetric efficiency of fuel pump and engine cylinder ∙ Torque is a function of thermal efficiency ∙ Diesel engine has generally low speed engine ∙ None of the above
Last Answer : ∙ Torque is a function of thermal efficiency
Description : Increasing the cylinder speed result in a) Increase threshing efficiency b) Reduce cylinder loss c) Increase seed damage d) All of the above
Last Answer : d) All of the above
Description : On average how much does a combine harvester cost to operate?
Last Answer : This will really depend on how large of a farm you have. A rough estimate on the daily cos of opration of a combine harvester is $117 but the variables are endless.
Description : Self-propelled combine harvester is provide with a) Powering engine b) Petrol engine c) Diesel engine d) Kerosene engine
Last Answer : Diesel engine
Description : The following is not a farm machinery a) Combine harvester b) Power tiller c) Fresher d) Dumper trucks
Last Answer : Dumper trucks
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 : 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 : 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 : 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 : _______ 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 : Weight per unit of drawbar power is generally ranges between a)50-120kg/kw b)120-150kg/kw c)150-250kg/kw d)250-300kg/kw
Last Answer : a)50-120kg/kw
Description : Length of cut for silage ranges from E. 2-4 cm F. 5-10 cm G. 15-20 cm H. 20-25 cm
Last Answer : E. 2-4 cm
Description : The cutter bar of a tractor operated mower ordinarily makes: A. 800-1200 strokes/min B. 1600-2000 strokes/min C. 2400-2800 strokes/min D. 3200-3600 strokes/min
Last Answer : A. 800-1200 strokes/min
Description : .When the valves are carried in engine bioel at one side of each cylinder is called A. Valves in head arrangements B. L-head C. I-head D. None of the above
Last Answer : B. L-head
Description : An engine is called I or valve in head engine when a) Valve are immediately above the cylinder b) Both valves are on one side c) Both valves are on opposite direction d) None of the above
Last Answer : d) None of the above
Description : Axial flow thresher uses a) Raspbar type cylinder b) Serrated disc type c) Spike tooth d) Hammer mill
Last Answer : a) Raspbar type cylinder
Description : The two types of cylinder used on power wheat threshers are: a) Serrated disc and rasp bar b) Spike tooth and wire loop type c) Spike tooth and hammer mill d) Hammer mill and flails
Last Answer : c) Spike tooth and hammer mill
Description : Axial flow thresher uses a) Raspbar type cylinder b) Serrated disc type cylinder c) Spike tooth d) Hammer mill
Description : Axial flow thresher utilises (a) Rasp bar cylinder (b) Spike tooth cylinder (c) Hammer mill cylinder (d) Peg tooth cylinder
Last Answer : (b) Spike tooth cylinder
Description : Increasing non grain feed rate increase (a) Cylinder losses (b) Seed damage (c) Both (a) and(b) (d) None of the above
Last Answer : (a) Cylinder losses
Description : Compression pressure in petrol engine cylinder is a) 6-10 kg/cm2 b) 10-20 kg/cm2 c) 20-35 kg/cm2 d) 35-40 kg/cm2
Last Answer : a) 6-10 kg/cm2
Description : Compression pressure in diesel engine cylinder is a) 6-10 kg/cm2 b) 10-20 kg/cm2 c) 20-35 kg/cm2 d) None of the above
Last Answer : c) 20-35 kg/cm2
Description : Firing order of a six cylinder engine in which no two adjacent cylinder have power stroke is (a) 1 5 3 6 2 4 (b) 1 2 3 4 5 6 (c) 1 5 4 6 3 2 (d) 1 4 2 5 6 3
Last Answer : (a) 1 5 3 6 2 4
Description : hen displacement volume is divided by piston displacement, what will we obtained (a) number of cylinders (b) number of power stroke per minute for all cylinders (c) number of revolution of the crankshaft (engine) (d) number of revolution of crankshaft × number of cylinder
Last Answer : (b) number of power stroke per minute for all cylinders
Description : 349- Pods, heads or ears & freeseeds, lost during the cutting & conveying operation are called as..... (a) Cylinder loss (b) Walker losses ( rack loss) (c) Shoe losses (d) Gathering loss
Last Answer : (d) Gathering loss
Description : Increasing non-grain feed rate increase a) Cylinder losses b) seed damage c)Both (a) and (b) d) none of the above
Last Answer : a) Cylinder losses
Description : Free (threshed) seed carried over the straw discharged from the rear shoe is called as (a) Cylinder loss (b)walker loss (rack Loss) (b) Shoe loss (d) gathering loss
Last Answer : (b) Shoe loss
Description : Free (threshed) seed carried over the walker or rack in straw and discharge from the rear of machine is called as (a) Cylinder loss (b) walker loss(rack loss) (c) Shoe loss (d) gathering loss
Last Answer : (b) walker loss(rack loss)
Description : Unthreshed seed discharged from the rear of the machine either in straw or in the material from the cleaning shoe is called (a)cylinder loss (b)walker loss (rack loss) (c)shoe loss (d) gathering loss
Last Answer : (a)cylinder loss
Description : Cutting speed of the impact type cutter is a)10-20 m/s. b)20-40m/s c)40-50m/s. d)46-56m/s
Last Answer : b)20-40m/s
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 : In the lathe it is the peripheral speed of the work piece cutting speed of tool is expressed inm/min, V is a.= ðœ‹ð·ð‘/1000 b.= ðœ‹ð·/1000 c.= ð·ð‘/1000 d.=ðœ‹ð·ð‘/10
Last Answer : a.= ðœ‹ð·ð‘/1000
Description : ________ refer to the surface roughness of the tool a) Micro shape c) Edge shape b) Macro shape d) Gross shape
Last Answer : a) Micro shape