Agricultural Equipment Design Standards Quiz

Design of agricultural equipment or a tractor requires anthropometric and ______ data of user population for enhancing operator's comfort, safety and efficiency

International Standard (ISO 4253, 1993) and Indian Standard (IS 12343, 1998) lay down range of dimensions for the operator's seat and location of specific controls relative to ______ within the seating accommodation on agricultural tractor with a track width greater than 1,150 mm

The controls included are the steering wheel, clutch pedal, brake pedal and ______ pedal

The position of steering wheel relative to SIP is mainly dependent on the angle of the upper arms to the torso and the angle between the upper and lower arms, it should be 425-525 mm forward and 175-385 mm above the ______

The steering column angle shall be in the range of 0-40° (IS 12343, 1998).For the effort required for steering, ISO 10998 (1995) is ______

The seat height should be lower than the distance from footrest to the underside of the thigh when the 5th percentile person is seated (i.e.sitting popliteal height) to reduce excessive pressure.The Indian Standard (IS 12343, 1998) allows seat height up to 630 mm from ______.

The 5th percentile value of popliteal height sitting of male agricultural workers is 367 mm.Therefore, seat height on Indian tractors may be provided as 470 mm from ______ including the allowances for shoes.

The Indian Standard specifies seat length as 400 ± 50 mm (IS 12343, 1998).The seat length should be lower than 5th percentile value of buttock popliteal length keeping in view that there should be enough clearance between back of the lower leg and front edge of the seat for the 5th percentile ______.

The 5th percentile value of buttock popliteal length of Indian male agricultural workers is 382 mm.This 5th percentile value for West Bengal is 362 mm.Therefore, for Indian population the seat length should be 370 ± 10 mm.Seat width It is the horizontal distance between the outside edges of the seat surface measured in a plane perpendicular to the medium plane of the seat or the width measured along a horizontal transverse line passing through the ______.

The values of 95th percentile hip breadth sitting for male agricultural workers of India and Punjab are 364 and 374 mm respectively.As per BIS, it should not be less than 450 mm (IS 12343, 1998).However, based on anthropometric considerations of Indian agricultural workers, this value may be taken as ______ giving margin for clothing.

The seat length should be lower than 5th percentile value of buttock popliteal length keeping in view that there should be enough clearance between back of the lower leg and front edge of the seat for the 5th percentile ______.

The position of steering wheel relative to SIP is mainly dependent on the angle of the upper arms to the torso and the angle between the upper and lower arms, it should be 425-525 mm forward and 175-385 mm above the ______

The values of 95th percentile hip breadth sitting for male agricultural workers of India and Punjab are 364 and 374 mm respectively.As per BIS, it should not be less than 450 mm (IS 12343, 1998).However, based on anthropometric considerations of Indian agricultural workers, this value may be taken as ______ giving margin for clothing.

The 5th percentile value of popliteal height sitting of male agricultural workers is 367 mm.Therefore, seat height on Indian tractors may be provided as 470 mm from ______ including the allowances for shoes.

The seat height should be lower than the distance from footrest to the underside of the thigh when the 5th percentile person is seated (i.e.sitting popliteal height) to reduce excessive pressure.The Indian Standard (IS 12343, 1998) allows seat height up to 630 mm from ______.

The position of steering wheel relative to SIP is mainly dependent on the angle of the upper arms to the ______ and the angle between the upper and lower arms, it should be 425-525 mm forward and 175-385 mm above the SIP. The choice of steering column angle is affected by seating position, steering wheel diameter and force required for turning the steering wheel. The steering column angle shall be in the range of 0-40° (IS 12343, 1998).For the effort required for steering, ISO 10998 (1995) is referred.A good seat should enable the user to change posture at intervals so that different groups of muscles can be called into play.The most critical dimensions in the design of tractor seat based on available Indian anthropometric data are given below.

The controls included are the steering wheel, clutch pedal, brake pedal and ______ pedal

Design of agricultural equipment or a tractor requires anthropometric and ______ data of user population for enhancing operator's comfort, safety and efficiency

International Standard (ISO 4253, 1993) and Indian Standard (IS 12343, 1998) lay down range of dimensions for the operator's seat and location of specific controls relative to ______ within the seating accommodation on agricultural tractor with a track width greater than 1,150 mm

The seat height should be lower than the distance from footrest to the underside of the thigh when the 5th percentile person is seated (i.e. sitting popliteal height) to reduce excessive pressure.The Indian Standard (IS 12343, 1998) allows seat height up to 630 mm from ______