The constant factor in case of R10 series of preferred numbers is 1.06 1.12 1.58 1.26 TRUE ANSWER : ? YOUR ANSWER : ?
The power transmitted by the belt drive can be increased by All of these Dressing the belt to increase the coefficient of friction Increasing the initial tension in the belt Increasing wrap angle by using idler pulley TRUE ANSWER : ? YOUR ANSWER : ?
Surface endurance limit of gear material is dependent upon its Brinell hardness number Yield strength Elastic strength Toughness TRUE ANSWER : ? YOUR ANSWER : ?
In a boundary lubricated bearing, there is a __________ of lubricant between the journal and the bearing. None of these Thin film Either A or B Thick film TRUE ANSWER : ? YOUR ANSWER : ?
The following type of nut is used with alien bolt Hexagonal nut Slotted nut Castle nut Any one of the above TRUE ANSWER : ? YOUR ANSWER : ?
Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to Combined static and dynamic loading Dynamic loading Static loading Completely reversed loading TRUE ANSWER : ? YOUR ANSWER : ?
If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and Tc is the centrifugal tension, then initial tension in the belt is equal to (T₁ + T₂ + Tc)/2 (T₁ - T₂ + Tc)/2 T₁ + T₂ + Tc T₁ - T₂ + Tc TRUE ANSWER : ? YOUR ANSWER : ?
The connecting rod bolts are tightened up so that tightening stress Is about yield point divided by safety factor Is 50% of yield point Approaches yield point Is just sufficient to hold parts together TRUE ANSWER : ? YOUR ANSWER : ?
Gear box is used To increase efficiency of system To obtain variable speeds For speed reduction To produce torque TRUE ANSWER : ? YOUR ANSWER : ?
A tapered key which fits in a key way in the hub and is flat on the shaft, is known as Feather key Wood ruff key Gib-head key Flat saddle key TRUE ANSWER : ? YOUR ANSWER : ?