Theory of Machine The tractive force is maximum or minimum when the angle of inclination of crank with the line of stroke (θ) is equal to 90° and 180° 0° and 90° 270° and 360° 135° and 315° 90° and 180° 0° and 90° 270° and 360° 135° and 315° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a D-slide valve Governor Meyer's expansion valve Flywheel D-slide valve Governor Meyer's expansion valve Flywheel ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The C.G. of a link in any mechanism would experience No acceleration Linear acceleration Angular acceleration Both angular and linear accelerations No acceleration Linear acceleration Angular acceleration Both angular and linear accelerations ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing becomes necessary. This is because, the Effects of unbalances are directly proportional to the speed Unbalanced couples are caused only at higher speeds Effects of unbalances are proportional to the square of the speed Unbalanced forces are not dangerous at higher speeds Effects of unbalances are directly proportional to the speed Unbalanced couples are caused only at higher speeds Effects of unbalances are proportional to the square of the speed Unbalanced forces are not dangerous at higher speeds ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The number of links and instantaneous centers in a reciprocating engine mechanism are 4, 5 4, 4 4, 6 5, 4 4, 5 4, 4 4, 6 5, 4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is an example of sliding pair? Piston and cylinder of a reciprocating steam engine Ball and a socket joint Lead screw of a lathe with nut Shaft with collars at both ends fitted into a circular hole Piston and cylinder of a reciprocating steam engine Ball and a socket joint Lead screw of a lathe with nut Shaft with collars at both ends fitted into a circular hole ANSWER DOWNLOAD EXAMIANS APP
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