Theory Of Machine - Study Mode
[#261] The tractive force in a locomotive with two cylinders is given by (where c = Fraction of reciprocating parts per cylinder, m = Mass of reciprocating parts, $$omega $$ = Angular speed of crank, r = Radius of crank and $$ heta $$ = Angle of inclination of crank to the line of stroke)
Correct Answer
(C) $$left( {1 - { ext{c}}}
ight){ ext{m}}{omega ^2}{ ext{r}}left( {cos heta - sin heta }
ight)$$
[#262] When the primary direct crank of a reciprocating engine makes an angle of $$ heta $$ with the line of stroke, then the secondary direct crank will make an angle of _________ with the line of stroke.
Correct Answer
(C) $$2 heta $$
[#263] The lower pair is a
Correct Answer
(B) Closed pair
[#264] The purpose of a link is to
Correct Answer
(D) All of the above
[#265] In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from
Correct Answer
(D) 80° - 90°