A. to produce torque
B. for speed reduction
C. to obtain variable speeds
D. to increase efficiency of system
E. to damp out vibrations
Gear box is used___________________? Read More »
Machine Design A. bolted joint
B. kunckle joint
C. cotter joint
D. universal joint
E. universal coupling
A. ratio of coil diameter to wire diameter
B. load required to produce unit deflection
C. its capability of storing energy
D. indication of quality of spring
E. nothing
Spring index is___________________? Read More »
Machine Design A. ratio of coil diameter to wire diameter
B. load required to produce unit deflection
C. its capability of storing energy
D. concerned With strength of wire of spring
E. nothing
Form coefficient of spring is _____________________? Read More »
Machine Design A. K
B. K/2
C. 2K
D. KIA
E. UK
A. half
B. same
C. double
D. unpredictable
E. none of the above
A. welding
B. precasting
C. rivetting
D. casting
E. unconventional methods
Aircraft body is usually fabricated by_________________? Read More »
Machine Design A. the oil film pressure is generated only by the rotation of the journal
B. the oil film is maintained by supplying oil under pressure
C. do not require external supply of lubricant
D. grease is used for lubrication
E. none of the above
In hydrodynamic bearings_____________________? Read More »
Machine Design A. ZN/p
B. p/ZN
C. Z/pN
D. N/Zp
E. Zp/N
A. the Oil film pressure is generated only by the rotation of the journal
B. the oil film is maintained by supplying oil under pressure
C. do not require external supply of lubricant
D. grease is used for lubrication
E. none of the above
In hydrostatic bearings ____________________? Read More »
Machine Design