Theory Of Machine — Part 2 MCQs with Explanations

Acceleration polygon is the correct answer to “Klein's construction gives a graphic construction for”. This question is standard in competitive examination syllabi for Theory Of Machine.

Acceleration diagram is the correct answer to “For simple harmonic motion of the of follower, a cosine curve represents”. This question is standard in competitive examination syllabi for Theory Of Machine.

Involute is the correct answer to “The locus of a point on a thread unwound from a cylinder will be”. This question is standard in competitive examination syllabi for Theory Of Machine.

Total lift, total angle of lift, minimum radius of cam and cam speed is the correct answer to “In a circular arc cam with roller follower, the acceleration in any position of the lift will depend only upon”. This question is standard in competitive examination syllabi for Theory Of Machine.

Mass and stiffness is the correct answer to “The critical speed of a shaft depends upon its”. This question is standard in competitive examination syllabi for Theory Of Machine.

Utilizes a quadrilateral similar to the diagram of mechanism for reciprocating engine is the correct answer to “The Klein's method of construction for reciprocating engine mechanism”. This question is standard in competitive examination syllabi for Theory Of Machine.

tanθ = ± cosα is the correct answer to “The driving and driven shafts connected by a Hooke's joint will have equal speeds, if”. This question is standard in competitive examination syllabi for Theory Of Machine.

Partially constrained motion is the correct answer to “A foot step bearing and rotor of a vertical turbine form examples of”. This question is standard in competitive examination syllabi for Theory Of Machine.

Radius of journal is the correct answer to “A friction circle is a circle drawn when a journal rotates in a bearing. Its radius depends upon the coefficient of friction and the”. This question is standard in competitive examination syllabi for Theory Of Machine.

All of the above is the correct answer to “Which of the following mechanism is obtained from lower pair”. This question is standard in competitive examination syllabi for Theory Of Machine.

Turning pairs is the correct answer to “Ackermann steering gear consists of”. This question is standard in competitive examination syllabi for Theory Of Machine.

Sliding pairs is the correct answer to “Davis steering gear consists of”. This question is standard in competitive examination syllabi for Theory Of Machine.

Perpendicular is the correct answer to “The axis of precession is __________ to the plane in which the axis of spin is going to rotate.”. This question is standard in competitive examination syllabi for Theory Of Machine.

Less sensitive is the correct answer to “In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be”. This question is standard in competitive examination syllabi for Theory Of Machine.

Unstable is the correct answer to “When the relation between the controlling force (F c ) and radius of rotation (r) for a spring controlled governor is F c = ar + b, then the governor will be”. This question is standard in competitive examination syllabi for Theory Of Machine.

Limit the vehicle speed is the correct answer to “Governor is used in automobile to”. This question is standard in competitive examination syllabi for Theory Of Machine.

Too large is the correct answer to “If the pressure angle is __________, a reciprocating follower will jam in its bearings.”. This question is standard in competitive examination syllabi for Theory Of Machine.

Quick return motion mechanism is the correct answer to “The Coriolis component of acceleration is taken into account for”. This question is standard in competitive examination syllabi for Theory Of Machine.

Mass and stiffness is the correct answer to “Critical damping is a function of”. This question is standard in competitive examination syllabi for Theory Of Machine.

Both (A) and (B) above is the correct answer to “Which of the following is a lower pair”. This question is standard in competitive examination syllabi for Theory Of Machine.

Outside admission valve is the correct answer to “The D-slide valve is also known as”. This question is standard in competitive examination syllabi for Theory Of Machine.

Incompletely constrained motion is the correct answer to “A circular bar moving in a round hole is an example of”. This question is standard in competitive examination syllabi for Theory Of Machine.

Lower pair is the correct answer to “A universal joint is an example of”. This question is standard in competitive examination syllabi for Theory Of Machine.

Lower pair is the correct answer to “An automobile steering gear is an example of”. This question is standard in competitive examination syllabi for Theory Of Machine.

Higher pair is the correct answer to “The cam and follower is an example of”. This question is standard in competitive examination syllabi for Theory Of Machine.

Incompletely constrained motion is the correct answer to “The motion of a shaft in a circular hole is an example of”. This question is standard in competitive examination syllabi for Theory Of Machine.

Cam and follower is the correct answer to “Which of the following is an open pair”. This question is standard in competitive examination syllabi for Theory Of Machine.

Of relative velocity vector for the two coincident points rotated by 90° in the direction of the angular velocity of the rotation of the link is the correct answer to “The direction of Coriolis component of acceleration is the direction”. This question is standard in competitive examination syllabi for Theory Of Machine.

a is +ve and b = 0 is the correct answer to “A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation and a and b are constants. The governor becomes isochronous when”. This question is standard in competitive examination syllabi for Theory Of Machine.

$$\frac{{\tan \alpha }}{{\tan \left( {\alpha + \varphi } \right)}}$$ is the correct answer to “Efficiency of a screw jack is given by (where $$\alpha $$ = Helix angle and $$\varphi $$ = Angle of friction)”. This question is standard in competitive examination syllabi for Theory Of Machine.

No is the correct answer to “A chain comprises of 5 links having 5 joints. Is it kinematic chain”. This question is standard in competitive examination syllabi for Theory Of Machine.

m1r1 = m2r2 is the correct answer to “A disturbing mass m 1 attached to the rotating shaft may be balanced by a single mass m 2 attached in the same plane of rotation as that of m 1 , such that (where r 1 and r 2 are the radii of rotation of m 1 and m 2 respectively)”. This question is standard in competitive examination syllabi for Theory Of Machine.

Difference between the maximum and minimum energies is the correct answer to “The maximum fluctuation of energy is the”. This question is standard in competitive examination syllabi for Theory Of Machine.

n = 3($$l$$ - 1) - 2j - h is the correct answer to “The Kutzbach criterion for determining the number of degrees of freedom (n) is (where $$l$$ = number of links, j = number of joints and h = number of higher pairs)”. This question is standard in competitive examination syllabi for Theory Of Machine.

All of the above is the correct answer to “The example of lower pair is”. This question is standard in competitive examination syllabi for Theory Of Machine.

Piston and cylinder of a reciprocating steam engine is the correct answer to “Which of the following is an example of sliding pair”. This question is standard in competitive examination syllabi for Theory Of Machine.

$$\left( {{\omega _1} + {\omega _2}} \right){\text{r}}$$ is the correct answer to “The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity $${\omega _1}$$ rad/s in the clockwise direction and the link OB turns with angular velocity $${\omega _2}$$ rad/s in the anticlockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O)”. This question is standard in competitive examination syllabi for Theory Of Machine.

$$\left( {{\omega _1} - {\omega _2}} \right){\text{r}}$$ is the correct answer to “The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity $${\omega _1}$$ rad/s in the clockwise direction and the link OB turns with angular velocity $${\omega _2}$$ rad/s in the clockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O)”. This question is standard in competitive examination syllabi for Theory Of Machine.

Transverse vibrations is the correct answer to “The critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in”. This question is standard in competitive examination syllabi for Theory Of Machine.

$$\frac{9}{{16}}$$ is the correct answer to “The equation of motion for a single degree of freedom system with viscous damping is $$4\frac{{{{\text{d}}^2}{\text{x}}}}{{{\text{d}}{{\text{t}}^2}}} + 9\frac{{{\text{dx}}}}{{{\text{dt}}}} + 16{\text{x}} = 0.$$ The damping ratio of the system is”. This question is standard in competitive examination syllabi for Theory Of Machine.