In which of the following mechanism the relative motions of the rigid bodies are in one plane or in parallel planes?
If there are redundant constraints in the chain and it forms a statically indeterminate structure, what is the degree of freedom or the mobility of this structure?
If the shortest link is fixed, what type of mechanism is obtained?
Which of the following mechanism is an approximately straight-line motion mechanism?
__________ mechanism is a crossed four bar chain mechanism in early steam engines to guide the piston rod in a cylinder to have an approximate straight line motion.
For a Whitworth quick return motion mechanism β = 110°. Find the ratio of time of cutting stroke to time of return stroke.
Which of these is not a type of clutch?
In a conical clutch, the mean radius of the bearing surface is 300 mm whereas the breadth is 20 mm. Find the inner and outer radii. The semi cone angle is 30°.
If the outer and inner radius of the contact surfaces are 100 mm and 75 mm respectively and the semi cone angle is 22.5°, find the value of the face width required.
The smaller and generally the driving gear of a pair of mated gears is called _________
The distance measured along the circumference of the pitch circle from a point on one tooth to the same point on the adjacent tooth is called ________________
The locus of a point on the pitch circle from the beginning to end of engagement of two mating gears is called as ___________
The ratio of angle of action to the pitch angle is called ___________
The angle turned by the gear from the beginning to the end of engagement of a pair of teeth is called ______________
The condition which must be fulfilled by two gear tooth profiles to maintain a constant angular velocity ratio between them is called __________________
The distance travelled by a point on either pitch circle of the two wheels during the period of contact of a pair of teeth is called ____________________
The contact ratio is the ratio of arc of contact to the ____________
When large gear reductions are needed _________ gears are used.
Which of the following is an advantage of worm gear?
The distance by which a helix advances along the axis of the gear for one turn around is called _____________
Bevel gears are equivalent to rolling ________
Which of the gears has the highest contact ratio?
What is the working depth of the gear and the pinion of the bevel gears?
In a centrifugal clutch, what is ω?
Which of the following clutches include shoes and spider inside the rim of the pulley?
In a multi plate clutch, T = 150 N-m, n = 4, µ = 0.3 and R = 0.1 m. Find the axial thrust.