In a transverse fillet welded joint, the size of weld is __________ the throat of weld.
For general industrial machinery, the ratio of the length of journal to its diameter is taken as
The ends of the leaves of a semi-elliptical leaf spring are made triangular in order to
For general industrial machinery, the ratio of the length of journal to its diameter is taken as
The shear stress at a point in a shaft subjected to a torque is
In a partial journal bearing, the angle of contact of the bearing with the journal is
The size of a cam depends upon
A steel containing 0.carbon is known as
The spring mostly used in gramophones is
The face of the tooth is the
Two concentric helical springs used to provide greater spring force are wound is opposite direction.
A shaft coupling should
Which of the following property is desirable in parts subjected to shock and impact loads?
The property of a bearing material which has the ability to accomodate small particles of dust, grit etc. without scoring the material of the journal, is called
Antifriction bearings are
In block brakes, the ratio of shoe width to wheel diameter is taken between
Which of the following welded joint is designed for shear strength ?
A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called
The shock resistance of steel is increased by adding
Stress concentration factor is defined as the ratio of
Oldham coupling is used to transmit power between two parallel shafts which are slightly offset.
In designing a connecting rod, it is considered like __________ for buckling about X-axis.
Crowning on pulley helps
In a bolt, the plane of shear should be across the threaded portion of the shank.
The property of a bearing material which has the ability to accomodate shaft deflections and bearing inaccuracies by plastic deformation without excessive wear and heating, is known as
A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) areN-m andN-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion isthen the equivalent twisting moment for the shaft is
In a bolt, the plane of shear should be across the threaded portion of the shank.
The material commonly used for crane hooks is
The temperature required for full annealing in hyper-eutectoid steel is
When a metal or alloy is cold worked,
A flange coupling is a type of rigid coupling.
In the levers of __________ type, the mechanical advantage is less than one.
When a machine member is subjected to torsion, the torsional shear stress set up in the member is
A flange coupling is a type of rigid coupling.
The eye bolts are used for
The effect of key ways on a shaft is to reduce its load carrying capacity and to increase its torsional rigidity.
The efficiency of a riveted joint is equal to
A leaf spring in automobiles is used
The strength of the un-riveted plate (P) per pitch length is equal to
A hollow saddle key is
The endurance or fatigue limit is defined as the maximum value of the stress which a polished standard specimen can withstand without failure, for infinite number of cycles, when subjected to
According to I.B.R., the factor of safety of riveted joint should not be less than
The constant factor in case of Rseries of preferred numbers is
Which of the following material has the maximum ductility?
The velocity of sliding __________ the distance of the point of contact from the pitch point.
In radial cams, the follower moves
The load cup of a screw jack is made separate from the head of the spindle to
In second type of levers,
In a hydrodynamic lubricated bearing
The pipe joint mostly used for pipes carrying water at low pressures is