ASSIGNMENT  3 Textbook   Assignment:   “Engineering   Operations,”   chapter   4,   all.   and   “Engineering   Material,” chapter   5,   pages   5-1   through   5-41. 3-1. 3-2. 3-3. 3-4. What   term   best   describes o p e r a t i o n a l    r e l i a b i l i t y ,    f u e l ,    f e e d and   freshwater   performance,   and   the a b i l i t y    t o    c o n t r o l    c a s u a l t i e s? 1. 2. 3. 4. The Engineering   trials Sound   engineering   practice Engineering   readiness Technical   knowledge operation   of   the   engineering plant   at   normal   pressures   and temperatures  with  minimal  speed changes   achieves   what   benefit? 1. Overall   plant   performance, r e l i a b i l i t y ,    and   efficiency 2. Fewer   casualties 3. Smaller   watch   teams 4. Improved   teamwork   throughout the   engineering   department The   engineer   officer   should   require that  a  tabular  record  of  normal feedwater   and   potable   water consumption   be   kept   for   ready reference   in   what   part   of   the   ship? 1. 2. 3. 4. The   log   room Main   engine   control Damage   control   central The   ship’s   office Prescribed   acceleration   tables should   be   strictly   adhered   to   in order   to 1. maximize   control   of   the   ship 2. save   fuel   and   extend   machinery l i f e 3. allow   maximum   flexibility   of machinery   configuration   at   all speed   changes 4. prolong   the   period   between boiler    cleaning 3-5. You  can  best  maintain  proper  water analysis   and   prevent   scale formation  by  which  of  the  following means? 1. Blow   tubes   weekly 2. Backfill   the   boiler   as   required 3. Surface   blow   the   boiler   as needed 4. Bottom   blow   the   boiler   weekly 3-6. Fireside   cleaning   of   the   boiler   may be   delayed   until   overhaul   by   which o f 1. 2. 3. 4. the   following   means Use   distillate   fuel   only   and maintain   proper   water   chemistry Use   distillate   fuel   only, conduct   periodic   inspections   of r e f r a c t o r y,    and   be   sure refractory   has   few   deposits   at 1800   hours Conduct   bottom   blows   and chemically   treat   as   necessary after   securing   the   boiler Maintain   proper   fuel/air mixture,    inspect   atomizers,   and prevent   air   casing   leakage 3-7. Combustion   efficiency   within   a boiler   is   reduced   by   which   of   the following   conditions? 1. Excessive   superheater   outlet temperatures 2. Excess   air   entering   the   fuel r e g i s t er 3. Improper   fuel\air   ratios 4. Excess   air   entering   the   boiler any   place   other   than   at   the burner   register 16