Theory of Machine The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction) α = 45° + φ/2 α = 90° - φ α = 90° + φ α = 45° - φ/2 α = 45° + φ/2 α = 90° - φ α = 90° + φ α = 45° - φ/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The advantage of the piston valve over the slide valve is that in the former case Both wear and power absorbed are low Wear is less The pressure developed being high provides tight sealing Power absorbed is less Both wear and power absorbed are low Wear is less The pressure developed being high provides tight sealing Power absorbed is less ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In which of the following type of gear train the first gear and the last gear are co-axial. None of the listed here Reverted gear train Compound gear train Simple gear train None of the listed here Reverted gear train Compound gear train Simple gear train ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the below are inversions of slider crank mechanism? 1. Oscillating cylinder engine mechanism 2. Toggle mechanism 3. Radial cylinder engine mechanism 4. Quick return mechanism 1, 2 and 4 1, 2 and 3 1, 3 and 4 2, 3 and 4 1, 2 and 4 1, 2 and 3 1, 3 and 4 2, 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Hart mechanism has Twelve links Six links Eight links Four links Twelve links Six links Eight links Four links ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The following is the inversion of slider crank chain mechanism All of these Oscillating cylinder engine Whitworth quick return mechanism Hand pump All of these Oscillating cylinder engine Whitworth quick return mechanism Hand pump ANSWER DOWNLOAD EXAMIANS APP
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