Screws used for power transmission should have
Low efficiency
High efficiency
Very fine threads
Strong teeth
- For a shoe brake, the equivalent coefficient of friction is equal to (where μ = Actual coefficient…
- When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will
- In a flange coupling, the flanges are coupled together by means of
- Cold working
- In the levers of first type, the mechanical advantage is __________ one.
- The pitch of threads on a Jock nut in comparison to pitch of nut is
- Whether any core is required in wire ropes
- The belt slip occurs due to
- In order to permit the thermal expansion/contraction of tubing, it should be
- The shear stress at a point in a shaft subjected to a torque is
- Taper on the cotter and slot is provided
- Which of the following is a permanent fastening?
- A steel containing __________ 0.8% carbon is known as hypoeutectoid steel.
- A spring of stiffness 1000 N/m is stretched initially by 100 mm from the undeformed position. The work…
- The application of third type levers is found in
- The rivet head used for boiler plate riveting is usually
- In designing a connecting rod, it is considered like __________ for buckling about Y-axis.
- A stud
- The ratio of driving tensions for flat belts, neglecting centrifugal tension, is (where T₁, and…
- The face of the tooth is the
- The velocity factor for precision metallic gears cut with high accuracy and operating at velocities…
- Which of the following spring is used in mechanical wrist watch?
- Fibrous fracture occurs in
- Castle nut is a locking device in which
- The condition for maximum power transmission is that the maximum tension in the flat belt should be…
- In leaf springs, the longest leaf is known as
- A universal coupling is used to connect two shafts
- The taper on key is given on
- The coefficient of friction in belt drive depends upon
- When a belt drive is transmitting maximum power,