Component Design (Machinery, Structures, Tools) MCQs

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1. : The design of agricultural machinery components is primarily based on:
(A) Strength, durability, and safety
(B) Random shapes and sizes
(C) Operator’s entertainment needs
(D) Ignoring material properties

2. : Which material is commonly used for manufacturing plough shares?
(A) High carbon steel
(B) Cast iron
(C) Plastic
(D) Wood

3. : Shafts used in farm machinery are designed to withstand:
(A) Bending and torsional stresses
(B) Only compressive stresses
(C) Random forces
(D) Soil moisture only

4. : In design calculations, working stress is defined as:
(A) Ultimate stress ÷ Factor of Safety
(B) Stress × Strain
(C) Load × Length
(D) Torque ÷ Speed

5. : The draft of a tillage implement mainly depends on:
(A) Soil type, moisture, and tool geometry
(B) Tractor color
(C) Operator’s mood
(D) Farm size

6. : Which type of weld is MOST commonly used in farm structure fabrication?
(A) Fillet weld
(B) Spot weld
(C) Butt weld
(D) Seam weld

7. : Bearings in agricultural machinery are designed to:
(A) Reduce friction between moving parts
(B) Increase soil fertility
(C) Improve crop yield directly
(D) Increase weight of machines

8. : The shear force in a simply supported beam under a central point load is maximum at:
(A) Supports
(B) Mid-span
(C) End of beam
(D) Random point

9. : Flywheels in engines are designed to:
(A) Regulate speed fluctuations
(B) Increase fuel consumption
(C) Store lubricants
(D) Control soil compaction

10. : Bolts in agricultural machinery are designed to resist:
(A) Tensile and shear stresses
(B) Soil erosion
(C) Thermal expansion
(D) Crop loads

11. : The purpose of a key in shaft design is:
(A) To transmit torque between shaft and hub
(B) To reduce bending stress
(C) To decorate the shaft
(D) To increase friction losses

12. : In irrigation channel design, the critical parameter is:
(A) Velocity and discharge
(B) Tractor horsepower
(C) Soil color
(D) Random crop type

13. : Columns in farm structures fail mainly due to:
(A) Buckling under compressive loads
(B) Torsional stress
(C) Fatigue only
(D) Tensile stress only

14. : Which stress is considered while designing gears?
(A) Bending stress and contact stress
(B) Thermal stress
(C) Compressive stress only
(D) Random stress

15. : The suction angle in plough design ensures:
(A) Proper penetration into soil
(B) Reduced draft power
(C) Reduced soil compaction
(D) All of the above

16. : Trusses used in farm buildings are designed to:
(A) Carry roof loads efficiently
(B) Store water
(C) Support tractors
(D) Reduce soil erosion

17. : The draft power requirement for tillage implements is given by:
(A) Draft × Speed
(B) Stress ÷ Area
(C) Load × Height
(D) Torque ÷ Radius

18. : Which material is most suitable for making gears in farm machinery?
(A) Alloy steel
(B) Aluminum
(C) Copper
(D) Plastic

19. : Bearings are broadly classified into:
(A) Sliding and rolling contact bearings
(B) Short and long bearings
(C) Thermal and hydraulic bearings
(D) Soil and water bearings

20. : Which factor is considered in the design of reinforced concrete farm structures?
(A) Dead load, live load, and wind load
(B) Random farmer choices
(C) Soil moisture only
(D) Tractor horsepower

21. : The bending moment in a beam is maximum at:
(A) Mid-span under a central load
(B) Supports always
(C) Random point
(D) End of the beam

22. : Which factor is MOST critical in designing harvesting blades?
(A) Cutting force and crop stem strength
(B) Tractor speed only
(C) Soil moisture
(D) Weather only

23. : The design of a thresher drum considers:
(A) Crop type, drum speed, and impact force
(B) Soil properties only
(C) Farmer’s age
(D) Tractor paint color

24. : In component design, tolerance refers to:
(A) Permissible variation in dimensions
(B) Stress–strain ratio
(C) Load capacity
(D) Efficiency of machine

25. : Component design in agricultural engineering mainly integrates:
(A) Material properties, load analysis, and functional requirements
(B) Decoration and appearance
(C) Random sketching
(D) Ignoring strength of materials