Is based on acceleration diagram
Is a simplified form of instantaneous center method
Utilises a quadrilateral similar to the diagram of mechanism for reciprocating engine
Enables determination of Carioles component
C. Utilises a quadrilateral similar to the diagram of mechanism for reciprocating engine
a is +ve and b = 0
a = 0 and b is +ve
a is +ve and b is -ve
a is +ve and b is also +ve
The primary unbalanced force is less than the secondary unbalanced force.
The primary unbalanced force is maximum twice in one revolution of the crank.
The unbalanced force due to reciprocating masses varies in magnitude and direction both.
The magnitude of swaying couple in locomotives is inversely proportional to the distance between the two cylinder centre lines
Small
Too small
Large
Too large
Vector sum of radial component and coriolis component
Vector sum of tangential component and coriolis component
Vector sum of radial component and tangential component
Vector difference of radial component and tangential component
sinα = b/c
cosα = c/b
tanα = c/2b
cotα = c/2b
No acceleration
Only linear acceleration
Only angular acceleration
Both linear and angular acceleration
Yes
No
It is a marginal case
Data are insufficient to determine it
Mean force exerted at the sleeve for a given percentage change of speed
Workdone at the sleeve for maximum equilibrium speed
Mean force exerted at the sleeve for maximum equilibrium speed
None of the above
Be zero
Act in upward direction
Act in downward direction
None of the above
(1/2) μ W R cosec α
(2/3) μ W R cosec α
(3/4) μ W R cosec α
μ W R cosec α
Magnitude of the forces on journal
Angular velocity of journal
Clearance between journal and bearing
Radius of journal
Tension on tight side of belt
Tension on slack side of belt
Radius of pulley
All of the above
1, 3
2, 2
3, 1
4, 0
10°-15°
15°-25°
25°-30°
30°-40°
Increases
Decreases
Remain unaffected
First increases and then decreases
Is based on acceleration diagram
Is a simplified form of instantaneous center method
Utilises a quadrilateral similar to the diagram of mechanism for reciprocating engine
Enables determination of Carioles component
Along the angular velocity
Opposite to angular velocity
May be any one of these
Perpendicular to angular velocity
2 mm
2.22 mm
2.50 mm
3.0 mm
Simple gear train
Compound gear train
Reverted gear train
Epicyclic gear train
Remains constant
Decreases
Increases
None of these
ω₁.ω₂.r
(ω₁ - ω₂)r
(ω₁ + ω₂)r
(ω₁ - ω₂)2r
Pitch circle
Base circle
Pitch curve
Prime circle
Vertically and parallel
Vertically and perpendicular
Horizontally and parallel
Horizontally and perpendicular
sin (θ + φ) + 1/ cos (θ - φ) + 1
cos (θ - φ) + 1/ sin (θ + φ) + 1
cos (θ + φ) + 1/ cos (θ - φ) + 1
cos (θ - φ) + 1/ cos (θ + φ) + 1
Have a surface contact when in motion
Have a line or point contact when in motion
Are kept in contact by the action of external forces, when in motion
Permit relative motion
To dip the nose and tail
To raise the nose and tail
To raise the nose and dip the tail
To dip the nose and raise the tail
Will remain same
Will change
Could change or remain unaltered depending on which link is fixed
Will not occur
Centripetal component of acceleration with length of link
Tangential component of acceleration with length of link
Resultant acceleration with length of link
All of the above
(1/2). μ W cosecα (r₁ + r₂)
(2/3). μ W cosecα (r₁ + r₂)
(1/2). μ W cosecα [(r₁³ - r₂³)/(r₁² - r₂²)]
(2/3). μ W cosecα [(r₁³ - r₂³)/(r₁² - r₂²)]
Flat pivot bearing
Flat collar bearing
Conical pivot bearing
Truncated conical pivot bearing