In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the center of drum, and n = Number of blocks)

Theory of Machine
In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the center of drum, and n = Number of blocks)

T₁/T₂ = [(1 + μ tanθ)/(1 - μ tanθ)]n

T₁/T₂ = μ. θ. n

T₁/T₂ = [(1 - μ tanθ)/(1 + μ tanθ)]n

T₁/T₂ = (μ θ)n

T₁/T₂ = [(1 + μ tanθ)/(1 - μ tanθ)]n

T₁/T₂ = μ. θ. n

T₁/T₂ = [(1 - μ tanθ)/(1 + μ tanθ)]n

T₁/T₂ = (μ θ)n

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The magnitude of velocities of the points on a rigid link is

Inversely proportional to the distance from the points to the instantaneous center and is perpendicular to the line joining the point to the instantaneous center

Inversely proportional to the distance from the points to the instantaneous center and is parallel to the line joining the point to the instantaneous center

Directly proportional to the distance from the points to the instantaneous center and is parallel to the line joining the point to the instantaneous center

Directly proportional to the distance from the points to the instantaneous center and is perpendicular to the line joining the point to the instantaneous center

Inversely proportional to the distance from the points to the instantaneous center and is perpendicular to the line joining the point to the instantaneous center

Inversely proportional to the distance from the points to the instantaneous center and is parallel to the line joining the point to the instantaneous center

Directly proportional to the distance from the points to the instantaneous center and is parallel to the line joining the point to the instantaneous center

Directly proportional to the distance from the points to the instantaneous center and is perpendicular to the line joining the point to the instantaneous center

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The pair is known as a higher pair, when the relative motion between the elements of a pair is

Rolling only

Partly turning and partly sliding

Turning only

Sliding only

Rolling only

Partly turning and partly sliding

Turning only

Sliding only

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The balancing of a rigid rotor can be achieved by appropriately placing balancing masses in

Four planes

Three planes

A single plane

Two planes

Four planes

Three planes

A single plane

Two planes

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The secondary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is

Both (A) and (B)

None of these

0° and 90°

180° and 360°

Both (A) and (B)

None of these

0° and 90°

180° and 360°

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load)

0.5615/ √δS

0.6253/ √δS

0.4985/ √δS

0.571/ √δS

0.5615/ √δS

0.6253/ √δS

0.4985/ √δS

0.571/ √δS

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine

Theory of Machine In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the center of drum, and n = Number of blocks)

Theory of Machine The magnitude of velocities of the points on a rigid link is

Theory of Machine The pair is known as a higher pair, when the relative motion between the elements of a pair is

Theory of Machine The balancing of a rigid rotor can be achieved by appropriately placing balancing masses in

Theory of Machine The secondary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is

Theory of Machine The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load)

Theory of Machine
In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the center of drum, and n = Number of blocks)

Theory of Machine
The magnitude of velocities of the points on a rigid link is

Theory of Machine
The pair is known as a higher pair, when the relative motion between the elements of a pair is

Theory of Machine
The balancing of a rigid rotor can be achieved by appropriately placing balancing masses in

Theory of Machine
The secondary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is

Theory of Machine
The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load)