Related Questions

Lewis equation in gears is used to find the
A Tensile stress in bending
B Shear stress
C Compressive stress in bending
D Fatigue stress
The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the __________ stress.
A Working
B Damaging
C Allowable
D None of these
There are two domains on your network. The DESIGN domain trusts the SALES domain. A color printer is shared in the DESIGN domain, and print permissions have been granted to the Domain Users and Domain Guests groups in the DESIGN domain. The Guest account has been enabled in the DESIGN domain. User John Y logs on using his account in the SALES domain. What must you do to allow JohnY to access the printer?
A Make JohnY a member of the DESIGN Domain Guests group
B Make JohnY a member of the DESIGN Domain Users group
C Do nothing. JohnY can access the printer now
D JohnY cannot access the printer with this configuration
E None of the above
The other gears are the ............... gears which are those most used in normal driving.
A front
B onward
C abvance
D ahead
which type of gears has point contact between two mating gears?
A helical gears
B spiral gears
C both (a) and (b)
D none of these
The gears are termed as medium velocity gears, if their peripheral velocity is
A 1-3 m/s
B 3-15 m/s
C 15-30 m/s
D 30-50 m/s
Two advantages of using helical gears rather than spur gears in a transmission system are
A Strength and cost
B Strength and less end thrust
C Noise level and strength
D Noise level and economy
If Q is load factor, S is shape factor and F is factor of safety in elastic design, the following:
A Q = S + F
B Q = S - F
C Q = F - S
D Q = S × F
Factor of safety (i.e., overdesign factor) in heat transfer equipments is about __________ percent more than the actual/theoretical design factor.
A 5-10
B 15-20
C 30-35
D 35-40
The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around
A 1
B 0.24
C 3.97
D 600

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