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101.

Contact ratio of gear should be

102.

The advantages of involute profile over cycloidal are given below. Identify if there is any incorrect statement

A.	In the involute system, the pressure angle is constant, from commencement to end of engagement	B.	The straight teeth of the basic rank for the involute profile admits of simple tools
C.	The profile for the flank and face is a single curve in the involute system	D.	The vriation in the centre distance with in limits does not affect the two mating gears in the involute system
E.	The interference is inherently absent in this system

103.

In case of spur gears the profile is

A.	The part of the tooth surface lying below the pitch surface	B.	The curve forming face and flank
C.	The width of the gear tooth measured axially along the pitch surface	D.	The surface of the top of tooth
E.	Radius that connects the root circle to the profile of the tooth

104.

While evaluating the minimum number of teeth on a opinion the major consideration is

A.	The minimum diameter of the pinion	B.	The shaft diameter on which pinion is to be mounted
C.	To avoid interference	D.	To minimise clearance
E.	Operating speed

105.

According to the law of gearing

A.	Common normal at the point of contact always passes through a fixed point (pitch point) on the line joining the centres of rotation	B.	Teeth should be involute type
C.	Teeth should be cycloidal type	D.	Clearance should be minimum 0.15 mm
E.	The gears whould be cut with the cutter having same module

106.

A gear box in an automobile utilises

A.	Simple gear train	B.	Compound gear train
C.	Epicyclic gear train	D.	Compound-epicyclic gear train
E.	None of the above

107.

In case of gears, the module is

A.	The length of the pitch circule diameter per tooth	B.	The number of teeth per unit length on pitch circle diameter
C.	The pistance measured along the pitch circle from a point on one tooth to a corresponding point on the adjacent point	D.	Any of the above
E.	None of the above

108.

In case of gears, the interference takes place

A.	Whenever the forms of the mating teeth are such that contact between them can occur at some place other than along the correct path of contact	B.	When gears do not move smoothly in absence of lubrication
C.	When the pitch of the gears is not same	D.	When the gear teeth are under cut
E.	None of the above

109.

Which of the following are not standard forms for spur-gears?

110.

Which one of the following is not applicable to involute profile

A.	The shape of the involute profile is dependent only on the dimensions of the base circle	B.	The angular velocity ratio when tow involutes are in mesh, is inversely proportional to the size of the base circles
C.	No involute has a pressure angle until it is brought in contact with other mating involute	D.	Involute is the only tooth form that is not sensitive to centre distance of their base circles
E.	The pitch diameters of mating involutes are inversely proportional to their base circle diameters