MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The thermal efficiency of CI engine is |
| A. | Higher than SI engine |
| B. | Lower than SI engine |
| C. | Equal to SI engine |
| D. | None of these |
| Answer» B. Lower than SI engine | |
| 2. |
The threshing cylinder used in groundnut thresher is |
| A. | Spike tooth type |
| B. | Rasp bar type |
| C. | Hammer mill type |
| D. | Angle bar type |
| Answer» B. Rasp bar type | |
| 3. |
ONK-B sprayer duster is used as |
| A. | Spraying of liquid |
| B. | Dusting of dry pesticides |
| C. | Dusting of wet pesticides |
| D. | All are correct |
| Answer» B. Dusting of dry pesticides | |
| 4. |
The part of seed drill that conveys seed or fertilizer from deliver tube to furrow is |
| A. | Shoe |
| B. | Boot |
| C. | Furrow opener |
| D. | Seed tube |
| Answer» C. Furrow opener | |
| 5. |
In IC engines the method used for ignition of fuel is |
| A. | Electric sparks |
| B. | Heat of compression |
| C. | Open flame and hot tube |
| D. | All are correct |
| Answer» E. | |
| 6. |
The biogas production stops at an atmospheric temperature of |
| A. | 5?C |
| B. | 10?C |
| C. | 14?C |
| D. | 18?C |
| Answer» C. 14?C | |
| 7. |
Specific speed of pump expresses relationship between |
| A. | Pump speed |
| B. | Pump discharge |
| C. | Total head |
| D. | All are correct |
| Answer» E. | |
| 8. |
A cylinder block is normally made of |
| A. | Aluminium |
| B. | Cast iron |
| C. | High carbon steel |
| D. | Mild steel |
| Answer» C. High carbon steel | |
| 9. |
Supercharger of an engine is driven by |
| A. | Camshaft |
| B. | Crankshaft |
| C. | Exhaust gases |
| D. | Flywheel |
| Answer» C. Exhaust gases | |
| 10. |
The value of angle of repose for millets is about |
| A. | 15-20 degree |
| B. | 20-25 degree |
| C. | 25-30 degree |
| D. | 30-35 degree |
| Answer» C. 25-30 degree | |
| 11. |
Terminal velocity of wheat grain is |
| A. | 8-10 m/s |
| B. | 9-11.5 m/s |
| C. | 10-12.5 m/s |
| D. | 10-13 m/s |
| Answer» C. 10-12.5 m/s | |
| 12. |
A governor based on the principle that the change of pressure in one part of system produces an opposite change of much greater magnitude in other part is called |
| A. | Centrifugal governor |
| B. | Pneumatic governor |
| C. | Hydraulic governor |
| D. | None of these |
| Answer» D. None of these | |
| 13. |
Bench terracing is also called as |
| A. | Hill farming |
| B. | Staircase farming |
| C. | Erosion control farming |
| D. | None of these |
| Answer» C. Erosion control farming | |
| 14. |
In an adiabatic process system |
| A. | Temperture is constant |
| B. | Pressure is constant |
| C. | Heat is constant |
| D. | Volume is constant |
| Answer» D. Volume is constant | |
| 15. |
The viscosity of oil denoted by a number is |
| A. | Cetane number |
| B. | Octane number |
| C. | SAE number |
| D. | None of these |
| Answer» D. None of these | |
| 16. |
The depth measured at the centre of the disc by placing its concave side down on a flat surface is |
| A. | Convexity |
| B. | Concavity |
| C. | Both (a) & (b) |
| D. | None of these |
| Answer» C. Both (a) & (b) | |
| 17. |
The solar cells used in solar panel are used to convert solar energy into |
| A. | Chemical energy |
| B. | Mechanical energy |
| C. | Electrical energy |
| D. | None of these |
| Answer» D. None of these | |
| 18. |
The term harvesting is associated with |
| A. | Cutting of crop |
| B. | Picking of pods |
| C. | Plucking and digging |
| D. | All are correct |
| Answer» E. | |
| 19. |
Ratio of net pull produced for the dynamic normal load on traction device is called |
| A. | Tractive force |
| B. | Traction constant |
| C. | Net traction coefficient |
| D. | All are correct |
| Answer» D. All are correct | |
| 20. |
A disadvantage of air-cooling system is |
| A. | Uneven cooling of engine parts |
| B. | Engine temperature is high |
| C. | Both (a) & (b) |
| D. | None of these |
| Answer» D. None of these | |
| 21. |
Gears are generally made of |
| A. | Cast iron |
| B. | High crabon steel |
| C. | Aluminium alloy |
| D. | Alloy steel |
| Answer» E. | |
| 22. |
Air injection pumps are mostly used in |
| A. | Tractor engine |
| B. | Railway engine |
| C. | Aircraft engine |
| D. | Heavy duty stationary engine |
| Answer» E. | |
| 23. |
The threshing of crop by stripping is done with the help of |
| A. | Hooves of animal |
| B. | Peg/hoop of threshing |
| C. | Both (a) & (b) |
| D. | None of these |
| Answer» D. None of these | |
| 24. |
Drying temperature for using batch-bin dyers is |
| A. | 55?C |
| B. | 60?C |
| C. | 65?C |
| D. | 70?C |
| Answer» C. 65?C | |
| 25. |
Chemically correct air mixture ratio for Otto cycle engine is |
| A. | 12;1 |
| B. | 14;1 |
| C. | 15;1 |
| D. | 20;1 |
| Answer» D. 20;1 | |
| 26. |
In wind erosion movement of particle is carried out by |
| A. | Saltation and surface creep |
| B. | Suspension |
| C. | Saltation, suspension and surface creep |
| D. | None of these |
| Answer» D. None of these | |
| 27. |
The stubble type of mould board is mostly suitable for |
| A. | Grassy land |
| B. | Tough soil |
| C. | Sticky soil |
| D. | None of these |
| Answer» B. Tough soil | |
| 28. |
The rate of doing work is equal to |
| A. | 75 kg n/min |
| B. | 4500 kg m/min |
| C. | 27000 kg m/hr |
| D. | All are correct |
| Answer» E. | |
| 29. |
In thin layer drying, the depth of grain layer should be |
| A. | 20 cm |
| B. | Less than 20 cm |
| C. | More than 20 cm |
| D. | None of these |
| Answer» C. More than 20 cm | |
| 30. |
The purpose of harrowing is to |
| A. | Pulverize soil |
| B. | Destroy weeds |
| C. | Break clods |
| D. | All are correct |
| Answer» E. | |
| 31. |
The seed drill, which is used for direct sowing of seeds in unploughed land after paddy harvesting is |
| A. | Strip drill |
| B. | Zero till drill |
| C. | Conventional drill |
| D. | None of these |
| Answer» C. Conventional drill | |
| 32. |
Ratio of total force output of the traction device in direction of travel to dynamic weight on traction device is |
| A. | Tractive efficiency |
| B. | Coefficient of traction |
| C. | Coefficient of rolling resistance |
| D. | Wheel slip |
| Answer» C. Coefficient of rolling resistance | |
| 33. |
The press wheel used for compaction of soil around the seeds in high moisture conditions are |
| A. | Open centre wheel |
| B. | Solid steel narrow wheel |
| C. | Hallow steel narrow wheel |
| D. | None of these |
| Answer» B. Solid steel narrow wheel | |
| 34. |
Constant speed engine is used in |
| A. | Tractor |
| B. | Power tiller |
| C. | Motor car |
| D. | Electric generator |
| Answer» E. | |
| 35. |
A point at which the resultant of all horizontal and vertical forces acts is |
| A. | Centre of gravity |
| B. | Centre of resistance |
| C. | Centre of pull |
| D. | Line of pull |
| Answer» C. Centre of pull | |
| 36. |
A long mould board with gentle curvature used in tough soil full of grasses is |
| A. | Stubble type MB |
| B. | Breaker type MB |
| C. | Slat type MB |
| D. | General purpose |
| Answer» C. Slat type MB | |
| 37. |
The seed tubes are made of |
| A. | Rubber |
| B. | Plastic |
| C. | Mild steel |
| D. | All are correct |
| Answer» E. | |
| 38. |
Downstream section of straight drop spillway is called as |
| A. | Apron |
| B. | Stilling basin |
| C. | Both (a) & (b) |
| D. | None of these |
| Answer» D. None of these | |
| 39. |
The implement suitable for terraced hilly land and do not upset the slope of land is |
| A. | One-way plough |
| B. | Two-way plough |
| C. | Ridger |
| D. | None of these |
| Answer» C. Ridger | |
| 40. |
The furrow opener, which works well in trashy soils, is |
| A. | Inverted T type |
| B. | Shoe type |
| C. | Hoe type |
| D. | All are correct |
| Answer» C. Hoe type | |
| 41. |
Biogas is obtained by the anaerobic fermentation of |
| A. | Animal dung |
| B. | Plant waste |
| C. | Animal waste |
| D. | All are correct |
| Answer» E. | |
| 42. |
A mower in which swinging knives are used for cutting is |
| A. | Rail mower |
| B. | Reciprocating mower |
| C. | Cylinder mower |
| D. | All are correct |
| Answer» B. Reciprocating mower | |
| 43. |
The part plough that transmit the animal power to the plough is |
| A. | Standard |
| B. | Beam |
| C. | Handle |
| D. | Body |
| Answer» C. Handle | |
| 44. |
The bearing used in most of disc harrow is about |
| A. | Sealed ball bearing |
| B. | Unsealed ball bearing |
| C. | Sealed taper roller bearing |
| D. | Unsealed taper roller bearing |
| Answer» B. Unsealed ball bearing | |
| 45. |
The size of light MB plough is |
| A. | Below 100 mm width of cut |
| B. | Between 100 mm and 150 mm width of cut |
| C. | Above 100 mm width of cut |
| D. | Above 150 mm width of cut |
| Answer» C. Above 100 mm width of cut | |
| 46. |
A low mould board with gradual twist comparatively inverts the furrow slice with a minimum of break up thus covering vegetative thoroughly is called |
| A. | Sod bottom |
| B. | Stubble bottom |
| C. | Slated mould board |
| D. | General purpose bottom |
| Answer» C. Slated mould board | |
| 47. |
Glow plug is used for |
| A. | To ignite the fuel |
| B. | To heat the air charge of engine |
| C. | To ignite the diesel |
| D. | All are correct |
| Answer» C. To ignite the diesel | |
| 48. |
Constant speed governor is used in |
| A. | Petrol engine |
| B. | Stationary engine |
| C. | Tractor engine |
| D. | All are correct |
| Answer» C. Tractor engine | |
| 49. |
The recommended high temperature limit for seed grains is |
| A. | 65?C |
| B. | 70?C |
| C. | 80?C |
| D. | 85?C |
| Answer» D. 85?C | |
| 50. |
The press wheel whed for compaction of soil around the seeds in low moisture conditions are |
| A. | Opelt center wheel |
| B. | Solid steel narrow wheel |
| C. | Hallow steel narrow wheel |
| D. | None of these |
| Answer» C. Hallow steel narrow wheel | |