Answers Verified 100% Correct
Ball bearings have the least - ANSWER Surface to surface, metal to metal contact
exploiting the low viscosity of the layer of fluid
Viscosity will go down - ANSWER decrease with increase in temperature
EP oil lubrication can be - ANSWER Corrosive under certain conditions
EP greases are used for - ANSWER High temperatures, low speed operations due to
high pressure or shock loading
Rosin is commonly used in - ANSWER Electronic and electronic soldering.
Pipe fitting with threads on inside and outside is - ANSWER A bushing
Cavitations can - ANSWER Damage a pump
A faulty high Limit Switch can cause a - ANSWER Pressure relief valve on a boiler to
trip
The speed that a RPM can safely run on a grinder - ANSWER Depends upon the
speed the wheel is rated forj
Small bubbles that are formed in liquid and implode violently and create low head
pressure - ANSWER Cavitations
Hydraulic pressure exiting the pump is greater than that fluid exiting the tank -
ANSWER Due to back flow prevention
Advantages of brazing over welding are - ANSWER Lower flame temperatures
Flux removes - ANSWER Oxides and prevents oxidation during brazing
A series circuit - ANSWER Has only one path to current to flow
An amperage meter is used to - ANSWER Measure current in a circuit
On an ohm meter, a reading that stays on zero indicates - ANSWER A shorted