The pulley,
which is used to increase the angle of contact, is called a/an ________ pulley.
चरखी, जिसका उपयोग संपर्क के कोण को बढ़ाने के लिए किया जाता है, को ________ चरखी कहा जाता है।
loose
fast
idler
cross belt
idler
Idler pulleys are used to increase the angle of contact, obtain higher velocity ratio and increase the belt tension.
Hence, the
correct option is (C).
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