Theory of Machine In a reciprocating engine, usually __________ of the reciprocating masses are balanced. Three-fourth Two-third One-half Whole Three-fourth Two-third One-half Whole ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A cam mechanism imparts following motion Oscillating Rotating All of these Reciprocating Oscillating Rotating All of these Reciprocating ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In under damped vibrating system, if x₁ and x₂ are the successive values of the amplitude on the same side of the mean position, then the logarithmic decrement is equal to x₁/x₂ loge(x₁/x₂) log(x₁/x₂) log(x₁.x₂) x₁/x₂ loge(x₁/x₂) log(x₁/x₂) log(x₁.x₂) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is 6,000 r.p.m. 5,367 r.p.m. 9,360 r.p.m. 12,000 r.p.m. 6,000 r.p.m. 5,367 r.p.m. 9,360 r.p.m. 12,000 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of a particle moving with simple harmonic motion, at any instant is given by (where ω = Displacement of the particle from mean position) ω² √(x² - r²) ω √(x² - r²) ω √(r² - x²) ω² √(r² - x²) ω² √(x² - r²) ω √(x² - r²) ω √(r² - x²) ω² √(r² - x²) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The minimum periodic time of a compound pendulum is 2π. √(kG/g) 2π. √(2kG/g) (1/2π). √(kG/g) (1/2π). √(2kG/g) 2π. √(kG/g) 2π. √(2kG/g) (1/2π). √(kG/g) (1/2π). √(2kG/g) ANSWER DOWNLOAD EXAMIANS APP
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