20 May, 2021 VideRime 2 Comments 1 category 123456789101112131415Show paginatorHide paginator 50%Page 1 of 2 Loading...1. In case of single plate new clutches and brakes, the friction radius is equal to Where, ‘D’ and ‘d’ are outer and inner diameters of friction lining respectively.½[(D3 - d3)/(D2 - d2)]¼ [(D3 - d3)/(D2 - d2)]⅓ [(D3 - d3)/(D2 - d2)]¼ (D + d) Loading...2. The friction radius for new clutch compared to worn out clutch will beEqualMore or less depending on size of clutchLessMore Loading...3. In case of cone clutch, a relatively small axial force can transmit a given torque, if the semi-cone angle isMoreMore or less depending on size ofEqualLess Loading...4. The friction moment in a clutch with uniform wear as compared to friction moment with uniform pressure isEqualMore or less depending on speedMoreLess Loading...5. The clutch used in scooters isCone clutchSingle plate clutchCentrifugal clutchMulti-plate clutch Loading...6. The torque transmitted by single plate clutch, working on uniform wear criterion, is given by, Where, µ = coefficient of friction, P = axial force required to hold the friction surfaces together, Rmin = mean radius of friction surfaces0.50 µ P Rminµ P Rmin0.75 µ P Rmin0.25 µ P Rmin Loading...7. In case of single plate worn out clutches and brakes, the friction radius is equal to Where, ‘D’ and ‘d’ are outer and inner diameters of friction lining respectively.¼ [(D3 - d3)/(D2 - d2)]½[(D3 - d3)/(D2 - d2)]¼ (D + d)⅓ [(D3 - d3)/(D2 - d2)] Loading...8. The friction material of the clutch should haveHigh coefficient of frictionHigh endurance limit strengthHigh surface hardnessLow coefficient of friction Loading...9. The commonly used angle between leather or asbestos friction lining surface and axis of cone clutch for a cone clutch is12.5°14.5°20°45° Loading...10. The clutch used in trucks isCone clutchCentrifugal clutchMulti-plate clutchSingle plate clutchPage 2 of 2 Loading...11. In the running condition, the net force acting on the drum of centrifugal clutch is equal toThe spring force The centrifugal force on shoe minus spring forceThe centrifugal force on shoeThe centrifugal force on shoe plus spring force Loading...12. A jaw clutch isPositive action clutchFriction clutchDisk clutchCone clutch Loading...13. In case of multi-plate clutch if n1 is number of disks on driving shaft and n2 is the number of disks on driven shaft, then the number of pairs of contacting surfaces is given byn1 + n2 + 1n1 + n2 - 1n1 + n2n1 + n2 - 1 Loading...14. In the beginning of engagement of a centrifugal clutch,The centrifugal force on shoe is less than spring forceThe centrifugal force on shoe is equal to spring forceThe centrifugal force on shoe is slightly more than spring forceNone of the above Loading...15. In case of multi-disk clutches, oil is used,For all above functionsTo lubricate the contacting surfacesTo carry away the heatTo reduce the friction Loading... Share this Now with Friends: Share on WhatsApp (Opens in new window) WhatsApp Share on Telegram (Opens in new window) Telegram MoreRelatedTags: Friction Clutches MCQsMechanical Engineering Category: Friction Clutches MCQs 2 Replies to “Friction Clutches MCQs”Your point of view caught my eye and was very interesting. Thanks. I have a question for you. https://www.binance.info/register?ref=JW3W4Y3AReplyYour article helped me a lot, is there any more related content? Thanks!ReplyLeave a ReplyCancel reply Post navigationPrevious: Springs Machine Design MCQsNext: Engineering Drawing MCQs Practice Set-1
Your point of view caught my eye and was very interesting. Thanks. I have a question for you. https://www.binance.info/register?ref=JW3W4Y3AReply
Your point of view caught my eye and was very interesting. Thanks. I have a question for you. https://www.binance.info/register?ref=JW3W4Y3A
Your article helped me a lot, is there any more related content? Thanks!