Soil acceleration increases draft because of  
a) Increased normal load on soil working surface  
b) Increased frictional resistance  
c) Kinetic energy imparted to the soil  
d) All of the above

1 Answer

Answer :

d) All of the above

Related questions

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 : Scouring will occur as long as a) Frictional resistance at soil tool interface is less than the resistance at parallel soil-soil inter face b) Frictional resistance at soil tool interface is more than ... c) Soil-metal friction is more than angle of soil shearing resistance d) None of the above

Last Answer : a) Frictional resistance at soil tool interface is less than the resistance at parallel soil-soil inter face

Description : Under a given set of operating conditions, the designer and operator has some control of a)Useful soil resistance b) Parasitic Force c)Draft of implement d) Pull of implement

Last Answer : b) Parasitic Force

Description : Force ( including rolling resistance friction ) that acts upon the stabilising surfaces such landslide and sole of bottom are called a) Useful soil resistance b) Parasitic force d) Draft of implement. d) Pull of implement

Last Answer : b) Parasitic force

Description : Forces which a tool must overcome in cutting, breaking and moving the soil is called a) Useful soil resistance b) Parasitic force c) Draft of implement d) Pull of implement

Last Answer : a) Useful soil resistance

Description : A power tiller is most suited for rotary cultivation because: A. It generates negative draft B. Its traction requirements are low C. It provides high degree of soil pulverization D. All of the above

Last Answer : D. All of the above

Description : At smaller disc angles , the draft tends to increase in disc plough because of a) Greater contact area between furrow wall and the convex side of the disc b) Increase in the side draft c) Greater throw of the soil d) All of the above

Last Answer : a) Greater contact area between furrow wall and the convex side of the disc

Description : Rotary tiller are wide adopted in rice cultivation due to a) Excessive pulverization b) Suitability for pudding paddy field c) Reduced draft requirement d) Complete inversion of soil

Last Answer : b) Suitability for pudding paddy field

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 : Swinging drawbar is advantageous because it help A. Taking short turn with machine wider than the tractor B. Reduces side draft C. Leaves only small area uncovered at corner of the fied D. All the above

Last Answer : A. Taking short turn with machine wider than the tractor

Description : shaped blades are best suited for i. Minimum tillage of trashy land at shallow depths j. Dried hard soils k. Cutting and pulverisation in wet sticky clay soil l. Working under normal field conditions

Last Answer : i. Minimum tillage of trashy land at shallow depths

Description : Hook type blades best suited for e. Minimum tillage of trashy land at shallow depths f. Dried hard soils g. Cutting and pulverisation especially in wet sticky clay soil h. Working under normal field conditions

Last Answer : f. Dried hard soils

Description : Total mechanical losses ( frictional losses , pumping loss in intake and exhaust and power accessories) will amount to a.10-20 % ihp b.2-10 % ihp c.20-30 % ihp d.30 -50 % ihp

Last Answer : a.10-20 % ihp

Description : When frequency of occurrence of overload is less and magnitude of overload is also less than safety device used is a) Safety jump clutch b) Shear device c) Frictional device d) V-belt drive

Last Answer : a) Safety jump clutch

Description : When frequency of occurrence of overload is less but the mangnitude of overload is large than safety device used is: a) Safety jump clutch b) Shear device c) Frictional device d) V-belt drive

Last Answer : b) Shear device

Description : .Fandem wheels are preferred over dual wheels because a) they tends to reduce load on an area by50% b)they tends to reduce soil contact pressure c)reduces sub soil compact ness pressure d)none of the above

Last Answer : a) they tends to reduce load on an area by50%

Description : owest specific energy requirement for the operation of rotavator is about _______ times as great as a mould board plough working in the same soil. a) Equal b) Twice c) Three d) Four

Last Answer : c) Three

Description : 1Heavy draft of a disc plough is due to: A. Blunt disc B. Furrows too wide C. Loose bearings D. All are currect

Last Answer : D. All are currect

Description : Total force exerted upon the implement by a power unit called a)pull. B) draft C)side draft. D)unit draft

Last Answer : a)pull

Description : Horizontal component of pull perpendicular to the line of motion is called: A.Draft B.Side draft C.Transerve component D. Pull

Last Answer : B.Side draft

Description : Heavy draft of a disc plough is due to: a) Blunt disc b) Furrows too wide c) Loose bearings d) All of the above

Last Answer : d) All of the above

Description : A power tiller is most suited for : A. Draft operation with rigid tools B. Rotary cultivation C. Stationary operation D. Transport work

Last Answer : B. Rotary cultivation

Description : The type of restrained three point linkage system in which the depth of implement is automatically adjusted to maintain a pre selected constant draft is called : E. Automatic draft control system F. Precision control system G. Depth control system H. None of the above

Last Answer : E. Automatic draft control system

Description : Rotary tillers are characterized by a) Lower and negative draft b) High power requirement c) Excessive pulverization d) All the above

Last Answer : d) All the above

Description : Differential lock offers advantage of A. Better drawbar pull when drive wheel are under different conditions B. Easier to plant in straight rows C. Reduces stearing effort and side draft when operating with certain implements D. All of the above

Last Answer : D. All of the above

Description : When the water is warm, the height to which it can be lifted by a pump (A) Decreases due to reduced viscosity (B) Decreases due to reduced vapour pressure (C) Increases due to increased vapour pressure (D) Decreases due to increased frictional resistance

Last Answer : (B) Decreases due to reduced vapour pressure

Description : Dual wheels have disadvantage of a)reducing soil contact pressure and sub soil compact negative pressure b) concentrating load over an area c)reduces load on area by 50% d) none of the above

Last Answer : b) concentrating load over an area

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

Last Answer : d) All of the above

Description : Formula for adding weight (ballast) on tractor tyres working in loose wet soil for good traction a)(km/hr × kg/PTO kw)=540 b)( km/hr × kg/PTO kw)=670 c)( km/hr × kg/PTO HP)=540 d)( km/hr × kg/PTO HP)=670

Last Answer : a)(km/hr × kg/PTO kw)=540

Description : Rotavator working in reverse direction for compacting soil and giving good touch to inter culturing is called a) Rotary tiller b) Power tiller c) Power harrow d) Treader

Last Answer : d) Treader

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 : Scouring indicates: A. movement of soil on tool surface B. sticking of soil on tool surface C. inversion of soil D. none of the above

Last Answer : A. movement of soil on tool surface

Description : ed planting is practiced for row crops in (a) Semi-arid conditions to place seed deep in moist soil (b) High rainfall areas to improve surface drainage (c) Irrigated areas leaving more space for operation of equipments (d) Both (b) and (c)

Last Answer : d) Both (b) and (c)

Description : Lister planting or furrow planting is practiced for (a) High rainfall areas to improve surface drainage (b) Semi-arid conditions to place seed deep in moist soil (c) Areas where natural moisture conditions are favourable (d) Irrigated areas leaving more space for operation of equipments

Last Answer : (b) Semi-arid conditions to place seed deep in moist soil

Description : _________means movement of soils across a tool surface without sticking first to avoid soil build ups a) Pulverisation b) Inversion c) Scouring d) Turning

Last Answer : c) Scouring

Description : The maximum frictional force which comes into play when a body just begins to slide over the surface of another body is known as a.Kinetic friction b.Rolling friction c.Dynamic friction d.Limiting friction e.Sliding friction

Last Answer : d. Limiting friction

Description : In order to slip one surface over another, maximum frictional force has to be overcome, this maximum frictional force between the two surfaces is also known as A. kinetic frictional force B. maximal frictional force C. limiting frictional force D. resisting force

Last Answer : limiting frictional force

Description : Transplanter using soil bearing seedlings are more popular than washed root seedling transplanter because of a) less labour requirement b) lesser plant missing percentage c) higher work rates d) all of the above

Last Answer : d) all of the above

Description : A slat mould board scours better than a solid mould board because of smaller contact area resulting in a) Reduction of adhesive force b) Increase in soil pressure c) Both (a) and (b) d) None of the above

Last Answer : c) Both (a) and (b)

Description : The amount of energy required to produce a given degree of pulverisation depends primarily on a) Soil strength b) Energy utilisation efficiency of tool c) Both (a) and (b) d) None of the above

Last Answer : c) Both (a) and (b)

Description : The shear resistance of a soil is constituted basically of the following component. (A) The frictional resistance to translocation between the individual soil particles at their contact point (B) To the ... (C) Cohesion and adhesion between the surfaces of the soil particles (D) All the above

Last Answer : Answer: Option D

Description : Width of cut of disc plow is increased by a)Increasing disc angle b)Increasing tilt angle c)addition of more weight d)Decreasing disc angle

Last Answer : a)Increasing disc angle

Description : The depth of penetration of a disc harrow is increased by: a) Tilt angle b) Gang angle c) Disc angle d) All of above

Last Answer : b) Gang angle

Description : A thresh causes more seed damage if :- a. Seed is increase b. Clearance is increased c. Feed rate is reduced d. Seed is reduced

Last Answer : a. Seed is increase

Description : 345- Excessive stalk deflection particularly when cutting close to ground results in ...... (a) Stubbles of uneven length (b) Increased tedency of stalk to cut by cutting unit..... (c) Less unevenness in cutting (d) Less missing or uncut stalk

Last Answer : (a) Stubbles of uneven length

Description : Good design of the casing of a centrifugal pump aims at minimising the (A) Cavitation (B) Frictional losses (C) Kinetic energy loss (D) Static head

Last Answer : Option C

Description : Turbo chargers or super chargers increases engine power by A. 10-20% C. 50-60% B. 20-30% D. 90-100%

Last Answer : A. 10-20%

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 : Increase amount of non-grain material on the straw walker _______ the walker losses a) Decreases b) Increases c) Unaffected d) Equal

Last Answer : b) Increase