5_285038304917717012.pdf - X 4M Sr N o 1 1 E NG M E ER O FF...

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Scanned by CamScanner X 4M S r N o 1 1 E X A M I N A T I O N O F - E N G M E E R O F F I C E R F u n c l 1 o n M a r m e E æ i l Be ¢ r j n g a l M a n a g e m e n t A e v e l - E N G I NE E N N G K N O W L E D G E ( M O T O R ) E O C I 1 s s U a i n e a l l o w e d 3l 1 o u r s ) I n di a ( 20 1 5 ) M t e r n o o n P a p e r T o t a l M a r k s 100 NB ( 1 ) A n s w e r S I X Q u e s t i o n s o n l y ( 2 ) A ll Q u e s t i o n s m r r y e q u a l m a r l is ( 3 ) N ea t n e ss i n h a n d w r i t i n g a n d c l a r i t y i n ex p r e ss i o n c a r r y w e i g h t a g e ( 4 ) u l n s t r a t i o n o f a n A n s w e r w i t h c l e a r s l : e t c h e s / d i a g r a m s c a r r i e s w e i g h t a g e ( 5 ) A u u n u s e d - o f A n s w e r s c r i p t m u s t b e c a n c e l l e d o u t b y t w o l i n es O ) · a c - t h e p a g e 1 . a ) W n y - d o w n i n m a i n b e a r i n g s i s c r i t i c a l u » t h e c o n d i t i o n o f t h e c r a n k s h a ft a n d p «o p e 11 t r s ha f b ) W h y t o t a n e l i an c e i s p l a c e d o n f f i c t i o n a 1 B r i p i n c o n v e n t i o n a l b u i l t u p c r a n k s h a f t c ) Wh y o il h o l e s a r e g i v e n l ar g e f il l e t s i n c ra n k p i n s an d j o m a l s # 2 . W i t h r e - t o b r id g e c o n u o l o f a l a r g e s l o w s p e e d p r o p u l s i o n e n g i n e a ) EXPn h o w s ¢ a r t i n 8 a n d t l ev e r s a l a r e a c hi e v e d b ) - i n v e s t i g a t i o n a n d r em e di a l a c t i o n r e q u i re d i f t h e e n g i n e Æ f a H s t o t ur n o n ai o n a i r b u t t a u s t o ñre o n ñ1 e L n o Ä s t o r ev e r se . 3 · ) E x p l a i n t h e p o s s ibl e - n s T /C v ib r a t i o n w hil e o p e ra t i n g a t a s t c a y s p e e d b ) S w e h o w t h e i n c i d e n c e o f t u r b o c h a r g e r v i b ra t i o n m i g h t b e m i n i n 1 i se d c ) E x p l a i n t h e a c t i o n t o b e t a ] ce n i n o M er t o m a i n t a i n 2 s t r o k e e n g i n e o p e r a t i o n i n t h e - t o f a t u r b o c h a r g e r h a v i n g t o b e t a k e n o u t o f se r v i c e d ) I n d i c a + e t h e ef ct t M s a c t i o n w i l l h a v e o n e n g i n e o p m t i o n 4 W i t h re f e r e n c e t o ó e - it a n d n 1 n n i n g g e a r o f a n e n g i n e , e x p l a i n E A CH o f t h e O o w 8 ( a ) S t a t i c ba l an ( b ) D y n am i c b a l a n c e ( c ) T o r q u e ï e a c t i o n c o u p l e ( d ) C D t i ca 1 s p æ d
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Scanned by CamScanner 8 r N o . 1 E X A M IN A T I ON O F M A IU N B R N C ï NE E R O E R F u n c f 1 û n M a 1 i n e Eng1rreerfng a l M a n q# z m e n l L e v e i - w i Þ M A 1U N E E N GIN EEM N G KN OW L EDGE ( GR NE R AL ) M B . O , Cl a M U a l m o a l l o w e d - 3h o u r » ) n d 1 n ( 20 1 5 ) T o t a l M a r i t a 100 n s t r u c t i o n s ( 1 ) Q u cs ¢ l o B 1 h c o m p u h o r y .
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