Ramsey Test Exam Questions and Answers
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What is the usual cause of overheating in high speed, grease-lubricated antifriction bearing -
ANS Faulty mounting practices
How can too much wear in gears be reduced - ANS Proper meshed
Why are timing belts made with teeth - ANS Doesn't slip
The insert, or spider, used in flexible jaw couplings is meant to - ANS Transmit torque and
accept misalignment
Clutches on machinery provide for disengaging and may also - ANS Interrupt the power
supply
What determines the selection of gear reducer size - ANS Torque and speed
why do metal parts seize when there is a lack of lubrication - ANS Metal to metal contact.
(lube protects the bearing against corrosion)
What causes lubrication oil to get milky - ANS Mixing incompatible oils, contamination
Why are heavy oils used - ANS To reduce the friction from heat and wear
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What is viscosity? - ANS The resistance of a liquid to flow
Which machine condition can be determined by using oil analysis? - ANS Various types of
wear and take corrective action before fails
Acids that form in lubricants affect performance are a result of - ANS Oxygen from the air
and high temperatures
Shutting fluid discharge of an air operated reciprocating pump will cause the pump to -
ANS Overstroke
What is the pressure on a fluid - ANS Measurement of force per unit area on an object in the
fluid
What can you use to meet peak hydraulic system demands - ANS A variable displacement
pump
Pressure in the hydraulic system can be controlled electrically by the use of - ANS Metering
the flow of fluid into or out
Hydraulic valves are typically adjusted by - ANS Flow control valve and adjustment the
control
Hydraulic reservoir suction lines can be raised for what - ANS Create enough vacuum
When air is compressed its temperature and....? - ANS The pressure and temperature of the
air increases
The speed of a piston is determined by - ANS Crankshaft stoke and the engine RPM
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