ASSEMBLY - Practice Mode
2) Which method of heat treatment to improve machinability and ductility in the job?
Correct Answer: Annealing
3) What is the disadvantage of flame hardening in the heat treatment process?
Correct Answer: Not suitable for small workpieces
Explanation:
When two parallel and coplaner shafts are connected by gears having teeth parallel to the axis of the shaft called spur gears, the arrangement is known as spur gearing.
Another name given to the spur gearing is helical gearing in which the teeth are inclined to the axis of the shaft. There are single and double helical gears. The double helical gears are known as herringbone gears. Helical gear run more silently.
5) Which type of key used if the hub of pulley has to axially slide on the shaft to some distance?
Correct Answer: Feather key