Ergonomics and Safety in Agricultural Operations MCQs

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1. : Ergonomics in agriculture mainly deals with:
(A) Increasing crop yield
(B) Improving human–machine interaction for efficiency and safety
(C) Reducing fertilizer use
(D) Designing irrigation canals

2. : The normal working heart rate recommended for male agricultural workers is:
(A) 60–80 beats/min
(B) 90–110 beats/min
(C) 120–140 beats/min
(D) Above 160 beats/min

3. : Musculoskeletal disorders among farm workers are mainly due to:
(A) Manual handling of loads and repetitive motions
(B) High fertilizer use
(C) Crop type only
(D) Improved mechanization

4. : The safe noise level for an 8-hour exposure according to OSHA standards is:
(A) 55 dB
(B) 75 dB
(C) 85 dB
(D) 100 dB

5. : Tractor rollover accidents can be minimized by:
(A) Increasing tractor speed
(B) Using Rollover Protective Structures (ROPS) and seat belts
(C) Reducing tractor weight
(D) Removing wheel ballast

6. : The minimum lux level required for safe farm operations at night is approximately:
(A) 20 lux
(B) 50 lux
(C) 100 lux
(D) 300 lux

7. : The main cause of vibration-related injuries in tractor operators is:
(A) Excessive fertilizer application
(B) Transmission of whole-body vibration from seat and platform
(C) High noise only
(D) PTO operations

8. : The optimum handle height of manually operated farm tools should be:
(A) At waist level of operator
(B) At knee level
(C) At chest level
(D) Above head level

9. : Heat stress in farm workers is commonly evaluated using:
(A) Wet Bulb Globe Temperature (WBGT) index
(B) Lux meter
(C) Sound level meter
(D) Tachometer

10. : The maximum load that can be safely lifted by a healthy male worker is approximately:
(A) 10–15 kg
(B) 20–25 kg
(C) 30–35 kg
(D) More than 50 kg

11. : The leading cause of fatalities in agriculture worldwide is:
(A) Irrigation accidents
(B) Tractor overturns
(C) Pesticide exposure
(D) Fire hazards

12. : The function of a seat suspension system in tractors is to:
(A) Reduce noise
(B) Absorb shocks and reduce vibrations transmitted to operator
(C) Improve PTO efficiency
(D) Reduce draft requirement

13. : The maximum recommended daily vibration exposure for operators is expressed in:
(A) dB
(B) m/s² (acceleration)
(C) Lux
(D) Beats/min

14. : Ergonomic design of hand tools should ensure:
(A) Reduced operator fatigue and higher efficiency
(B) Heavier tools for strength
(C) More power requirement
(D) Complex designs always

15. : Pesticide poisoning among farmers occurs mainly due to:
(A) Improper use of sprayers and lack of protective equipment
(B) High seed rate
(C) Overuse of fertilizers
(D) Poor irrigation

16. : The safe distance to stand behind a tractor-mounted sprayer is at least:
(A) 1 m
(B) 2 m
(C) 5 m
(D) 10 m

17. : The decibel level of a typical tractor engine without a silencer is around:
(A) 40–50 dB
(B) 60–70 dB
(C) 85–95 dB
(D) 110–120 dB

18. : The most common personal protective equipment (PPE) used during pesticide application is:
(A) Safety shoes only
(B) Gloves, mask, goggles, and apron
(C) Hard hat only
(D) Ear plugs only

19. : The human energy output in continuous farm work is approximately:
(A) 0.05 hp
(B) 0.1 hp
(C) 0.3 hp
(D) 1.0 hp

20. : The slip and fall accidents in agriculture are mostly due to:
(A) Poor footwear and slippery surfaces
(B) High soil fertility
(C) Tractor horsepower
(D) Crop variety

21. : In manual weeding, the recommended working posture is:
(A) Bending continuously at waist
(B) Squatting or sitting posture to reduce back strain
(C) Standing with bent knees
(D) Any posture without restriction

22. : Fire extinguishers commonly used in tractor cabins are of type:
(A) Foam
(B) Dry powder
(C) Water spray
(D) Sand bucket

23. : The human body weight distribution in sitting posture is approximately:
(A) 50% on thighs, 50% on back
(B) 70% on thighs, 30% on back
(C) 30% on thighs, 70% on feet
(D) 100% on thighs

24. : Hand-arm vibration syndrome is commonly caused by prolonged use of:
(A) Knapsack sprayers
(B) Power tillers and vibrating hand tools
(C) Combine harvesters
(D) Irrigation pumps

25. : The primary goal of safety programs in agriculture is to:
(A) Reduce mechanization
(B) Prevent accidents and protect health of workers
(C) Increase working hours
(D) Eliminate tractor use