+1 vote
in Farm Machinery by (38.9k points)
Pitch length of standard chain number 40 is ________

(a) 1.3 cm

(b) 2.3 cm

(c) 3.3 cm

(d) 4.3 cm

The question was posed to me in a national level competition.

My question is from Mechanical Power Transmission in section Mechanical Power Transmission of Farm Machinery

1 Answer

+1 vote
by (243k points)
selected by
Best answer
Correct choice is (a) 1.3 cm

To explain: Numbers of standard roller chains with length are:

35-1 cm

40-1.3 cm

50-1.6 cm

60-1.8 cm

80-2.5 cm.

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