27

28

29

30

31

32

33

34

35

36

Pages: 4

Which one of the following is for involute gears?
A)interference is inherently absent
B)variation in centre distance of shafts increases radial
force
C)a convex flank is always in contact with concave flank
D)pressure angle is constant throughout the teeth engagement
In spur gears, the circle on which the involute profile is generated is called the
A)base circle B)addendum circleC)pitch circleD)clearance circle

Types of gears used to connect two non-parallel non-intersecting shafts are
A)Spur gearsB)Bevel gears C)Helical gearsD)Spiral gears

The following one is an inversion of single slider crank chain
A)Watt's indicator mechanism B)Beam engine
C)Whitworth quick return motion mechanismD)Elliptical trammel

The relation between crank throw and stroke length is: http://www.ktuonline.com
A)Stroke length is half of crank throw B)Crank throw is half of Stroke length
C)Crank throw is double of Stroke ¢ngthD)Stroke length is double of crank throw

The most preferred firing order of a six cylinder engtne is :
^)1-5-3-6-3-4 8)1-2-4-5-6-3 ()1-5-3-6-2-4 0)1-6-2-4-3-5

The speed of cam shaft with respect to crank shaft is:
A)Same as the speed of crank shaft B)Double the speed of crank shaft C)Half
the speed of crmk shaftD)One third the speed of crank shaft

The recommended percentage of oil for mist lubrication is:
B) 8% ©

The term viscosity index refers to:

A)Measure of change of viscosity with respect to
temperature B)Measure of density rating with respect to
temperature C)Measure of change of temperature with
respect to viscosity

D)Memsure of change of specific gravity with respect to temperature.

The pulse width of a gasoline injector means:
A)fte number of injection pulses i_n a second
B)The period on which the injector remain open
C)The number of pulses in an injection
D)The quantity of fuel injected in astroke

The stoichiometric air fuel ratio of Hydro carbon fuel is :
A)12.7: 1 B)14.7: 1 2.41

Wobbelndexis a characteristic of :
A)Solid fuels B)Gaseous fuels C)Liquid fuels D) Fat Coal

Combustion reaction of fuels is a 18770೩00100