Home / Question Papers / MPSC Maharashtra Agriculture Services Main Exam-2017- Paper-2- Agriculture Engineering

MPSC Maharashtra Agriculture Services Main Exam-2017- Paper-2- Agriculture Engineering

MPSC Maharashtra Agriculture Services Main Exam-2017- Paper-2- Agriculture Engineering

  1. In drying, _______ causes movement of moisture from inside of kernel to the surface.

(1) Vapour pressure gradient

(2) Temperature gradient

(3) Humidity gradient

(4) None of the above

  1. The dry bulb temperature, wet bulb temperature and dew point temperature of moist air are equal when relative humidity (RH) is _______ percent.

(1) Zero

(2) 10

(3) 50

(4) 100

  1. The electrical resistance of grain depends upon

(1) Grain compaction

(2) Grain temperature

(3) Moisture present in grain

(4) All of the above

  1. The shape of a lemon fruit is classified as _________ spheroid.

(1) Oblate

(2) Prolate

(3) Ovate

(4) Obovate

  1. The angle of repose _______ with an increase in the moisture content of food materials.

(1) Increases

(2) Decreases

(3) Either increases or decreases

(4) Remains unchanged

  1. In Rheology, the Maxwell model is represented as

(1) Dashpot

(2) Spring

(3) Spring and dashpot in parallel

(4) Spring and dashpot in series

  1. The economical spacing of roof trusses work out to be _______ of span.

(1) 1/3 to 1/5

(2) 1/6 to 1/8

(3) 1/9 to 1/11

(4) 1/12 to 1/14

  1. _______ is especially useful for removing lightweight infertile seeds from seed stock and hence improves seed germination.

(1) Screen cleaner

(2) Specific gravity separator

(3) Spiral separator

(4) Indented cylinder separator

  1. In air screen cleaners, for cleaning of round shaped grains, ______ are used.

(1) Top screen round holes and bottom screen slotted holes

(2) Top screen slotted holes and bottom screen round holes

(3) Top screen triangular holes and bottom screen slotted holes

(4) Top screen slotted holes and bottom screen triangular holes

  1. The hammer mill is assumed to reduce size by

(1) Impact

(2) Compression

(3) Shearing

(4) Crushing

  1. Majority of HTST pasteurizers use _______ heat exchangers with sections for regenerative heating, heating and cooling.

(1) Plate type

(2) double pipe

(3) Shell and tubes

(4) Shell and coil

  1. Fan laws state that the pressure developed by a centrifugal pump varies as

(1) Its rotational speed

(2) Square of rotational speed

(3) Cube of rotational speed

(4) Independent on its rotational speed

  1. Planck’s law can be used for estimation of

(1) Time of freezing

(2) Time of drying

(3) Time of boiling

(4) Time of germination

  1. The amount of heat conducted across unit area and unit thickness of a material in unit time for unit change in temperature is

(1) Enthalpy

(2) Specific heat

(3) Thermal diffusivity

(4) Thermal conductivity

  1. _______ permits early harvest of crops.

(1) Storage

(2) Cooling

(3) Drying

(4) None of the above

  1. The value of dry basis moisture content is ______ the wet basis moisture content.

(1) Less than

(2) Equal to

(3) More than

(4) None of the above

  1. _______ properties may be defined as those which affect the behaviour of agricultural material under applied force.

(1) Thermal

(2) Mechanical

(3) Rheological

(4) None of the above

  1. ________ properties may be defined as the science which deals with the deformation and flow of material under action of applied forces.

(1) Rheological

(2) Mechanical

(3) Thermal

(4) None of the above

  1. The ________ separates materials on the basis of difference in length of various constituents.

(1) Air-screen cleaner

(2) Specific gravity separator

(3) Disk separator

(4) Spiral separator

  1. The major purpose of blanching is to inactivate _________ which would otherwise lead to quality reduction in processed food.

(1) Enzymes

(2) micro-organisms

(3) Yeast

(4) Insects

  1. Wind speeds increase with height. Wind speeds have traditionally been measured at a standard height of ______ where they are found to be _______ greater, than close to the surface.

(1) 5.0 metres; 10 to 20%

(2) 7.0 metres; 15 to 25%

(3) 10.0 metres; 20 to 25%

(4) 8.0 metres; 15 to 20%

  1. The best suited material for the construction of transformer core is

(1) Silicon steel

(2) Hard steel

(3) Wrought iron

(4) Copper

  1. While conducting a short-circuit test on a transformer, the following side is short-circuited:

(1) High voltage side

(2) Low voltage side

(3) Primary side

(4) Secondary side

  1. ________ is one of the low cost fences that is widely used for confining diary cattle.

(1) Barbed wire fence

(2) Plain wire fence

(3) Welded wire fence

(4) Electric fence

  1. The core of a transformer is made up of laminations in order to

(1) Reduce hysteresis loss

(2) Reduce eddy current loss

(3) Reduce copper loss

(4) Reduce hysteresis and eddy current losses

  1. The most widely used material of a solar cell is

(1) Arsenic

(2) Aluminium

(3) Silicon

(4) Steel

  1. As air moves across the surface of the Earth, its speed and direction changes by the local topography as well as by

(1) Local heating

(2) Local cooling

(3) Both (1) and (2)

(4) None of the above

  1. Regarding testing of a transformer, the following statements are made:
  2. Open circuit and short circuit tests can determine efficiency only.
  3. Open circuit and short circuit tests are simple to conduct.
  4. Power required to carry out open circuit and short circuit tests is very large compared with full-load output of a transformer.
  5. Direct loading method can also be used to determine efficiency and regulation of a transformer.

Out of the above, following statements is/are true:

(1) a, band d only

(3) b, c and d only

(2) a and d only

(4) b and d only

  1. Biogas consists of

(1) Only methane

(2) Methane and C02 with same impurities

(3) A special organic gas

(4) None of the above

  1. In this type of energy conversion system, it will have a cut-in speed, rated speed and cut-out speed.

(1) Solar

(2) OTEC

(3) Wind

(4) Thermal

  1. The compressive strength of concrete used for different structures is in the range of

(1) 300 – 700 kg/cm2

(2) 300 – 700 N/m-m2

(3) (3) 30 – 70 kg/cm2

(4) (4) 100 – 500 N/m-m2

  1. A building is to be constructed on alluvial soil having a bearing pressure of 6000 kg1sq.m. What shall be the width of masonry foundation having 4000 kg of dead load per running metre of the wall?

(1) 0.4 m

(2) 0.8 m

(3) 0.12 m

(4) None of the above

  1. The flooring material which is a mixture of linseed oil, gums and resins, pigments, wood floor, cork dust and other filling materials is termed as

(1) Linoleum

(2) Hindaleum

(3) Magnesite

(4) Dolomite

  1. Use of steel trusses is economical when it is used for spans greater than

(1) 12 m

(2) 8 m

(3) 16 m

(4) 20 m

  1. In shallow foundations, if the wall rests directly on foundation concrete without any step, it is called

(1) Spread footing

(2) Swallow footing

(3) RCC pier

(4) Simple footing

  1. Which equation is used to estimate the velocity of flow through a channel in designing grass water ways?

(1) Rancer’s equation

(2) Israelson equation

(3) Rational equation

(4) Manning’s equation

  1. Which one of the following is not a type of bench terrace?

(1) Level

(2) Inwardly slopping

(3) Outwardly slopping

(4) Along contour

  1. Erosivity is defined as

(1) Capacity of wind to cause erosion

(2) Capacity of rain to cause erosion

(3) Vulnerability of soil susceptible for erosion

(4) None of the above

  1. He was the first man who discovered that an electromotive force (emf) is generated in a conductor when the conductor is cut by magnetic lines of force (flux).

(1) Faraday

(2) Newton

(3) Einstein

(4) Pascal

  1. Saltation, suspension and surface creep forms of movement of soil particles is associated with which type of soil erosion from the following?

(1) Gully erosion

(2) Rill erosion

(3) Wind erosion

(4) None of the above

  1. What will be the vertical interval between two consecutive contour bunds if the land slope is 3% ?

(1) 0.90 m

(2) 0.30 m

(3) 3.00 m

(4) 1.20 m

  1. Which one of the following is not a permanent gully control structure?

(1) Drop spillway

(2) Chute spillway

(3) Drop inlet spillway

(4) Brushwood dam

  1. Soil erosion which results in the form of uniform removal of soil from land surface is termed as

(1) Splash erosion

(2) Rill erosion

(3) Sheet erosion

(4) Gully erosion

  1. In case of streams, stream bank erosion generally takes place on the ______ side of the stream.

(1) Convex

(2) Concave

(3) Downstream

(4) Top

  1. The damaging effect of floods depends on their super criticality which is measured by the Froude number (Fr).

The flow is said to be supercritical, if

(1) Fr < 1

(2) Fr = 1

(3) Fr > 1

(4) Fr < 1

  1. Threshold rainfall is defined as

(1) Cumulative rainfall before initiation of run off

(2) Cumulative rainfall of storm

(3) Total daily rainfall

(4) None of the above

  1. Which one of the following is not an artificial Rainwater Harvesting technique?

(1) Rock fracturing

(2) Bore blast technique

(3) Afforestation

(4) Construction of jacket around the well

  1. A rectangular farm pond has the following dimensions:
  2. Length = 10 m
  3. Width = 5 m
  4. Depth = 1 m

If it is totally filled in, what will the volume be in litres?

(1) 50

(2) 500

(3) 5,000

(4) 50,000

  1. A farm pond has the following specifications:
  2. Bottom surface = 5 x 5 m
  3. Depth = 5 m
  4. Side slopes = 1 H : 1 V

(on all the sides)

What will the size of the top of the farm pond be?

(1) 10mx 10 m

(2) 20mx 20 m

(3) 15 m x 15 m

(4) 20 m x 10 m

  1. Which one of the following options cannot be included in the concept of watershed development?

(1) Construction of major dams

(2) Optimal management of land water resources

(3) Socio-economic and institutional development

(4) Biodiversity protection

  1. Delineation of a watershed is an exercise of

(1) Area wise delineation

(2) Land use wise delineation

(3) Topographically drainage stream wise delineation

(4) None of the above

  1. Out of different biological measures used to control erosion in a watershed, which one of the following is not a biological measure?

(1) Contour strip cropping

(2) Mixed cropping

(3) Buffer strip cropping

(4) Field strip cropping

  1. Which of the following types of farm ponds should be selected where ground water table rise is within a few metres from the ground surface?

(1) Embankment type

(2) Dugout type

(3) Polythene lined dugout type

(4) Cement concrete lined embankment type

  1. Which one of the following options is not a geomorphological characteristic of a watershed?

(1) Total area of watershed

(2) Circulatory ratio

(3) Form factor

(4) Compaction factor

  1. Triangular V-notch (900 triangular weir) is a simple flow measuring instrument used for evaluation of watershed development programme.

Which is the discharge formula for this instrument?

(1) Q = 0.0138 H3/2

(2) Q = 0.0184 H3/2

(3) Q = 0.0138 LH3/2

(4) Q = 0.0138 H5/2

  1. For land use planning, land capability classification maps are prepared. Which type of land capability class the area demarked with green colour represent?

(1) Class I

(2) Class II

(3) Class VI

(4) Class VIII

  1. The surface of a channel which is in contact with water is called

(1) Hydraulic radius

(2) Wetted perimeter

(3) Wetted area

(4) None of the above

  1. The drainage density of any catchment/watershed varies inversely with the

(1) Area of the basin

(2) Length of the basin

(3) Width of the basin

(4) Average depth of the basin

  1. The type of flow in which the fluid characteristics like velocity, pressure, density, etc. at a point do not change with time, is called

(1) Steady flow

(2) Unsteady flow

(3) Uniform flow

(4) Non-uniform flow

  1. q = kdHx

Where

q = emitter flow rate in l ph

H = working pressure head at emitter, m

k = discharge coefficient

x = emitter discharge exponent

In this equation, the lower value of ‘x’ denotes

(1) The discharge will be less affected by variations in pressure

(2) The discharge will be more affected by variations in pressure

(3) There will not be any influence of variations in pressure on discharge

(4) None of the above

  1. The typical characteristic curves of a centrifugal pump show the relationship amongst
  2. Discharge
  3. Total head
  4. Brake horse power
  5. Efficiency

Answer Option:

(1) a, b and c

(2) b, c and d

(2) a, b and d

(4) a, b, c and d

  1. A canal aligned at right angles to the contours is a

(1) Watershed canal

(2) Contour canal

(3) Side slope carial

(4) Distributary canal

  1. The criteria for judging the performance of outlets or modules are
  2. Flexibility
  3. Proportionality
  4. sensitivity
  5. Uniformity
  6. Setting

Answer options:

(1) a, b, c and d only

(2) a, b, c and e only

(3) a, b, d and e only

(4) b, c, d and e only

  1. The bedding system of surface drainage is mostly used for
  2. Flat soils
  3. Steep slopy soils
  4. Poorly drained soils with low permeability
  5. Sandy soils with high permeability

Answer options:

(1) a and b only

(2) c and d only

(3) a and c only

(4) b and d only

  1. Cover material is applied to pipe drains
  2. to facilitate water flow into the drain.
  3. to prevent the entry of soil particles into the drain.

Answer options:

(1) a only

(2) b only

(3) Both a and b

(4) None of the above

  1. A 36 hectare catchment area having a drainage coefficient of 2.40 cm, will yield a discharge of

(1) 100 lit/sec

(2) 10 lit/sec

(3) 10 m3/hr

(4) 0.01 m3/sec

  1. Which one of the following formulae is used to design drain spacing under unsteady state condition?

(1) Dupit-Forchheimer

(2) Ernst

(3) Hooghoudt

(4) Glover-Dumm

  1. Which of the following operations requires moving large quantities of earth over considerable distances?
  2. Rough grading
  3. Land levelling
  4. Land smoothening
  5. Land planning

Answer options:

(1) a only

(2) b only

(3) a and b only

(4) All of the above

  1. Which of the following statements is true?

(1) Specific yield + Specific retention = Porosity

(2) Specific retention – Specific yield = Porosity

(3) Porosity + Specific yield = Specific retention

(4) Porosity + Specific retention = Specific yield

  1. The recommended safe limits of land slope (longitudinal slope, %) for efficient irrigation for heavy clay soils is

(1) 0.05 to 0.20

(2) 0.25 to 0.65

(3) 0.65 to 1.00

(4) 0.20 to 0.40

  1. High speed engines have engine speed ______ rpm.

(1) Less than 350

(2) 350- 750

(3) 750- 1000

(4) Greater than 1000

  1. An engine is considered to be better, when it produces the highest crankshaft torque at

(1) Rated engine speed

(2) Maximum power

(3) Less than rated engine speed

(4) More than rated engine speed

  1. The compression ratio of diesel engines are in the order of

(1) 4 to 8:1

(2) 8 to 14:1

(3) 14 to 20:1

(4) 1 to 4: 1

  1. The fuel which should be used for easy starting of an engine in cold weather is

(1) Diesel

(2) Kerosene

(3) Methanol

(4) Petrol

  1. The power developed by an average pair of bullocks is about

(1) 7500 watts

(2) 750 watts

(3) 75000 watts

(4) 75 watts

  1. A cold spark plug has

(1) A short insulator

(3) Small threads

(2) A long insulator

(4) Big threads

  1. The drawbar power output is always less than the Power Take-Off (FTO) output because of ______ in the drive train between the engine and the wheels.

(1) Drive wheel slippage

(2) Tractor rolling resistance

(3) Friction losses

(4) All of the above

  1. The component parts of a single drop steering system consists of the following parts :
  2. Radius rod, drag link and steering wheel
  3. Drop arm, drag link and tie rod
  4. Radius rod, tie rod and drop arm
  5. Drag link, radius rod and drop arm

Which of the above statements is/are true?

(1) a, c and d only

(2) a only

(3) b only

(4) c only

  1. A gear reduction unit between differential and drive wheels of a tractor is referred to as

(1) Final drive

(2) Gear unit

(3) Ultimate power system

(4) None of the above

  1. When the tractor is taking a turn, the inner and outer wheels should

(1) Rotate at the same speed

(2) Rotate at slower and faster speeds respectively

(3) Rotate at faster and slower speeds respectively

(4) Rotate at any speed

  1. Which type/s of dynamometer/s has/have to absorb energy to measure FTO power of the tractor?
  2. Prony brake
  3. Hydraulic
  4. Electrical generator
  5. Eddy current

Answer options:

(1) a only

(2) a and b only

(3) a, b and d only

(4) All of the above

  1. _______ are the useful devices used for levelling which are fabricated by village artisans.
  2. Buck scraper
  3. Float
  4. Planks
  5. Bund former

Answer options:

(1) a and b only

(2) a, band d

(3) a only

(4) All of the above

  1. An implement that is fully supported by the tractor is

(1) Trailed implement

(2) Mounted implement

(3) Semi-mounted implement

(4) All of the above

  1. To change the width of cut with a disc plough, the _______ should be changed; usually _____ is considered to be the optimum value.

(1) Disk angle, 400 to 450

(2) Tilt angle, 150 to 250

(3) Horizontal suction, 6 to 12

(4) Vertical suction, 6 to 12

  1. The point at which the resultant of all horizontal and vertical forces act on implement is known as

(1) Centre of pull

(2) Centre of power

(3) Centre of resistance

(4) Centre of hitch

  1. The point at which the resultant of all horizontal and vertical forces act on implement is known as

(1) Centre of pull

(2) Centre of power

(3) Centre of resistance

(4) Centre of hitch

  1. Depreciation is the reduction in the value of a machine caused by

(1) Wear

(2) Weathering and accidental damage

(3) Obsolescence or any other similar reasons

(4) All of the above

  1. _______ is a precision drilling machine.

(1) Seed drill

(2) Planter

(3) Transplanter

(4) Tiphan

  1. In a sickle, the forged end of the blade for fixing the handle is called

(1) Ferrule

(2) Tang

(3) Frame

(4) Beam

  1. The seed drill should be calibrated for _______ before actually operating in the field.

(1) Placement of seeds at correct row-to-row spacing

(2) Placement of seeds at correct seed-to-seed spacing

(3) Correct seed rate

(4) Correct seed depth

  1. ________ loss is the grain lost out the rear of combine in the form of unthreshed heads.

(1) Cutter bar

(2) Threshing

(3) Separating

(4) Cleaning

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