Theory of Machine The advantage of the piston valve over the slide valve is that in the former case 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 Both wear and power absorbed are low ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The type of gears used to connect two non parallel and non intersecting shafts is Helical gear Spiral gear Spur gear Bevel gear Helical gear Spiral gear Spur gear Bevel gear ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The minimum length of the coupler will be 45 mm Slightly less than 45 mm Slightly more than 45 mm 95 mm 45 mm Slightly less than 45 mm Slightly more than 45 mm 95 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the nature of contact between the elements of a pair is such that one element can turn about the other by screw threads, the pair is known as a Spherical pair Turning pair Screw pair Sliding pair Spherical pair Turning pair Screw pair Sliding pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted in a truncated conical pivot bearing, considering uniform wear, is (2/3).μ W cosec α (r₁ + r₂) (1/2). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (1/2). μ W cosec α (r₁ + r₂) (2/3).μ W cosec α (r₁ + r₂) (1/2). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (1/2). μ W cosec α (r₁ + r₂) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the crank is at the inner dead centre, in a reciprocating steam engine, then the velocity of the piston will be None of these Zero Maximum Minimum None of these Zero Maximum Minimum ANSWER DOWNLOAD EXAMIANS APP
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