Theory of Machine The two elements of a pair are said to form a higher pair, when they Are kept in contact by the action of external forces, when in motion Have a line or point contact when in motion Have a surface contact when in motion Permit relative motion Are kept in contact by the action of external forces, when in motion Have a line or point contact when in motion Have a surface contact when in motion Permit relative motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following mechanism is obtained from lower pair? Pantograph Valve and valve gears Gyroscope All of these Pantograph Valve and valve gears Gyroscope All of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at An infinite distance on the plane surface The point on the circumference situated vertically opposite to the contact point The point of contact The center of the disc An infinite distance on the plane surface The point on the circumference situated vertically opposite to the contact point The point of contact The center of the disc ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the primary direct crank of a reciprocating engine makes an angle of 'θ' with the line of stroke, then the secondary direct crank will make an angle of _________ with the line of stroke. 2θ θ 4θ θ/2 2θ θ 4θ θ/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The mechanism in which two are turning pairs and two are sliding pairs, is called a Double slider crank chain Elliptical trammel All of these Scotch yoke mechanism Double slider crank chain Elliptical trammel All of these Scotch yoke mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In order to give the primary balance of the reciprocating parts of a multi-cylinder inline engines None of these The algebraic sum of the primary forces must be equal to zero Both (A) and (B) The algebraic sum of the couples about any point in the plane of the primary forces must be equal to zero None of these The algebraic sum of the primary forces must be equal to zero Both (A) and (B) The algebraic sum of the couples about any point in the plane of the primary forces must be equal to zero ANSWER DOWNLOAD EXAMIANS APP
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