Related Questions

Babbit metal (used for making bearings) comprises of
A Mainly tin (85%) and lead
B Saw dust and iron dust mixture
C Zinc and aluminium
D Copper and aluminium
Babbit metal used for making bearings should have
A High co-efficient of friction between journal and bearing
B Ability to retain lubricant on its surface
C Low co-efficient of friction between journal and bearing
D Both B & C
Babbit lining is used on brass/bronze bearings to increase the
A Antifriction properties
B Compressive strength
C Bearing resistance
D Wear resistance
Babbit metals used for making bearings are
A Tin or lead based alloys
B Short of antifrictional properties
C Having homogenous microstructure
D Yellow metals
Babbit metal is not a
A Tin base alloy
B White metal
C Lead base alloy
D Pure metal
What type of bearing is used for main bearings and connecting rod bearings?
A Ball bearings
B Plain bearings
C Needle roller bearing
D Taper roller bearing
The rolling contact bearings as compared to sliding contact bearings have
A Low starting and low running friction except at very high speeds
B Accuracy of shaft alignment
C Small overall dimensions
D All of the above
Constantan an alloy used in thermocouples is an alloy of
A Copper and tin
B Copper and zinc
C Copper and iron
D Copper and nickel
Perminvar alloy having constant permeability is an alloy of
A Nickel, copper and iron
B Nickel, copper and zinc
C Copper, nickel and antimony
D Iron, zinc and bismuth
The partial pressure of each constituent present in an alloy is __________ the total vapor pressure exerted by the alloy.
A Less than
B Equal to
C More than
D Either B or C; depends on the type of alloy

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