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Design1 Stress concentration factor under static loading is accounted for

a) ductile materials b) brittle materialsc) both ductile and brittle materials d) neither ductile and brittle materials

2. Endurance limit of the material can be improved by

a) polishing b) coating c)shot peening d) All 3. A shaft used for distribution power is calleda) line shaft b) counter shaft c) ac! shaft d) fle"ible shaft

#. A woodruff !ey is generally used in thea) machine tool industry b) automobile industryc) te"tile machinery d) hydraulic machinery

$. A cotter oint is used to connect two rods which should be ina) tension b) compression c) tension or compressiond) torsion

%. A !nuc!le oint is used to connect two rods which should lie ina) same plane b) different planes c) parallel planes

d) any plane&. An '( screw indicates that the metric screw thread hasa) itch diameter of ( mm b) major diameter of 8 mmc) 'inor diameter of ( mm d) root diameter of ( mm

(. *he best method for ma!ing threads on a bolt isa)casting b) forging c) rolling d) cutting

+. *he type of bra!e used in scooters isa) pneumatic b) mechanical c) hydraulic d) both ,a) - ,b)

1 . *he type of bra!e used in truc!s isa) pneumatic b) mechanical c) hydraulic d) both (a) & (b)

11. 'atch the following

A. Automobiles a. /luid coupling0. ydraulic machinery b. ldham coupling. 4or!shops c. oo!5s couplingD. 'isaligned shafts d. rotected flange coupling

A 0 D,i) a c b d,ii) b d c a(iii) c a d b,iv) d b a c

12. 4hich type of spring is used in table cloc!s6 out of following7a) spiral b) leaf c) helical d) conical

13. *he 4hal correction factor accounts for a)direct shear b) curvature effects c)both direct shear and curvature effectsd) heli" angle

1#. urie point is the temperature at whicha) the metals start melting b) the metals start boilingc) ferromagnetic materials can be magneti8ed by e"ternal forcesd) ferromagnetic materials can no longer be magnetized by external forces

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1$. *he percentage of carbon in cast iron is of the order of9a) .( percent b) 2.$ percent c) 5 percent d) 1 percent

1%. *he ma"imum percentage of carbon in steel can bea) .( percent b) 1.2 percent c) 1 8 percent d) 2.( percent

1&. *o increase the resistance to corrosion of steel6 we should add

a) Sulphur b) copper c) 'anganese d) chromium1(. referred numbers are arranged ina) arithmetic series b) hyperbolic series c) geometric seriesd) random series

1+. According to 0:S6 the total number of grades of tolerance area) 12 b) 1# c) 1! d) 1(

2 . 0asic hole is one whosea) lower deviation is 8ero b) upper deviation is 8eroc) upper deviation is positive d) lower deviation is positive

"trength of materials

1. :n compression test on mild steela) nec#ing does not occur b) oo!5s law is not validc) oo!5s law is valid beyond yield pointd) Strength in compression is much greater than the strength in tension

2. A simply supported beam A carries a point load at its mid span. Another identical beam 0 carries the same load but uniformly distributed over the entire span. *he ratioof the ma"imum deflection of the beam A and 0

a) $;3 b) 8$5 c) $;( d) 3;$3. *he buc!ling load in a steel column is

a) related to length b)directly proportional to the slenderness ratioc) inversely proportional to the slenderness ratiod) non