Agricultural Engineering Set 14

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This set of Agricultural Engineering Multiple Choice Questions & Answers (MCQs) focuses on Agricultural Engineering Set 14

Q1 | In conventional freeze drying, dehydration temperature are kept between
  • 10?C-30?C
  • 30.2?C-65.5?C
  • 35.5?C-75?C
  • 37.8?C-93.3?C
Answer: 37.8?C-93.3?C
Q2 | Geologic erosion is also called as
  • Normal erosion
  • Natural erosion
  • Chemical erosion
  • Both (b) & (c)
Answer: Both (b) & (c)
Q3 | A metal with lowest melting point is
  • Aluminium
  • Copper
  • High carbon steel
  • Nickel
Answer: Aluminium
Q4 | The blade assembly of combine is operated at a speed of
  • 1.2-1.5 m/sec
  • 1.2-1.5 m/min
  • 1.5-3 m/sec
  • 1.5-3 m/min
Answer: 1.2-1.5 m/sec
Q5 | Hot pulses are tempered in the tempering bin after each pass for
  • 4 hours
  • 6 hours
  • 48 hours
  • 10 hours
Answer: 6 hours
Q6 | The use of unit hydrograph for estimating floods is limited to catchments of size less than
  • 500 km2
  • 1000 km2
  • 5000 km2
  • 6000 km2
Answer: 5000 km2
Q7 | The compression pressure of petrol engine inside the cylinder varies from
  • 6-10 kg/cm2
  • 10-15 kg/cm2
  • 8-12 kg/cm2
  • 12-15 kg/cm2
Answer: 6-10 kg/cm2
Q8 | The boiling temperature of water in the radiator is raised to about
  • 90?C
  • 100?C
  • 110?C
  • 120?C
Answer: 110?C
Q9 | Radiator core is made of
  • Cast iron
  • Steel
  • Plastic
  • Brass
Answer: Brass
Q10 | The capacity of smallest biogas plant is about
  • 1 m3
  • 2 m3
  • 6 m3
  • 12 m3
Answer: 2 m3
Q11 | Heat required to evaporate one kg of water from grain is
  • 450 Kcal
  • 500 Kcal
  • 600 Kcal
  • 656 Kcal
Answer: 500 Kcal
Q12 | The coupling joining two shafts out of alignment is
  • Flanged coupling
  • Universal coupling
  • Oldham coupling
  • Flexible coupling
Answer: Flexible coupling
Q13 | A reel of combine helps in
  • Preventing shattering of the crop
  • Allow crop to move uniformly to platform
  • Handle matted crop
  • All are correct
Answer: All are correct
Q14 | The random scattering of seed on the surface of seedbed is
  • Dibbling
  • Broadcasting
  • Hill dropping
  • Check row planting
Answer: Broadcasting
Q15 | Knapsack sprayer is suitable for
  • Brushes
  • Small trees
  • Row crop
  • All are correct
Answer: All are correct
Q16 | Mass density increases as
  • Pressure increase
  • Pressure decrease
  • Temperature increase
  • Temperature decreases
Answer: Pressure increase
Q17 | The extra high speed engines used in knapsack sprayers are powered by
  • Kerosene
  • Diesel
  • Petrol
  • Dual fuel
Answer: Petrol
Q18 | A pump used in force-feed lubrication system is
  • Centrifugal pump
  • Reciprocating pump
  • Positive displacement pump
  • None of these
Answer: Positive displacement pump
Q19 | Flate plate collector is generally used for
  • Room heating
  • Water heating
  • Lighting
  • All are correct
Answer: Room heating
Q20 | In rubber roller sheller, the clearance between rubber roll is
  • Equal to paddy thickness
  • Smaller than paddy thickness
  • Greater than paddy thickness
  • None of these
Answer: Smaller than paddy thickness
Q21 | An aquifer confined at the bottom but not at the top is called
  • Confined aquifer
  • Semi-confined aquifer
  • Unconfined aquifer
  • Perches aquifer
Answer: Unconfined aquifer
Q22 | At the wind velocity greater than threshold value, the vibration of particles will be
  • Zero
  • More
  • Slight
  • None of these
Answer: Zero
Q23 | Till plant equipment which are used for seed bed are
  • MB plough
  • Sweeps
  • Cultivators
  • Subsoiler
Answer: Sweeps
Q24 | Heat losses by exhaust gases is about
  • 25 per cent
  • 30 per cent
  • 33 per cent
  • 38 per cent
Answer: 33 per cent
Q25 | A MB plough whose plough bottom turns through 180? about a longitudinal axis is
  • One-way plough
  • Irreversible plough
  • Turn wrest plough
  • All are correct
Answer: Turn wrest plough
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