MSSC MAINTENANCE SCRIPTED EXAMS QUESTIONS
AND ANSWERS SURE A+
✔✔A machine shaft and bore should always be checked for out-of-round status before
performing what task? - ✔✔Pressing a bearing
✔✔Bearing metal that flexes during use is the cause of __________ in a bearing. -
✔✔Ultimate fatigue
✔✔A(n) __________ bearing has inner and outer races that allow it to carry heavier
axial loads than a standard ball bearing. - ✔✔angular contact
✔✔__________ couplings are used to act as a safety device if torque overload occurs. -
✔✔Clutch
✔✔In a mechanical transmission system an electric motor is also called a __________.
- ✔✔prime mover
✔✔The two major types of misalignment that are corrected by shaft alignment are
__________. - ✔✔angular and parallel
✔✔A machine's moving component slides over a(n) __________ bearing's surface with
only a lubrication film between them. - ✔✔plain
✔✔Motor shaft runout is checked to make sure of proper __________. - ✔✔alignment
of mating components
✔✔Before installing a flexible coupling you should check for __________. - ✔✔run out
✔✔The mechanical advantage of a gear drive system is the ratio of the number of teeth
of the driven gear divided by __________. - ✔✔the number of teeth of the driver gear
, ✔✔The coupling provides a secure method of transmitting __________ from one shaft
to another. - ✔✔torque and speed
✔✔A shaft coupling may be out of round if a dial indicator shows __________. - ✔✔any
movement
✔✔The radial load capacity of a linear bearing increases with __________. - ✔✔A
greater number of ball
✔✔The three (3) types of shaft-to-adjacent-shaft power transmissions are__________. -
✔✔belt drive, chain drive, and gear drive
✔✔The procedure for aligning two shafts is to check and correct for
__________and______misalignment in two planes, vertical and horizontal. - ✔✔angular
and parallel
✔✔The fractional horsepower (FHP) V-belt, also called a light duty belt is designed for
low power application below __________Hp. - ✔✔7.5HP
✔✔The V-belt should ride __________ in the groove with its top near the top of the
sheave; the V-belt does not touch the __________ of the sheave. - ✔✔high, bottom
✔✔The maximum allowable deflection force on a belt is __________ than the minimum
deflection force. - ✔✔50% greater
✔✔Pitch is defined as the distance between a point and a __________. - ✔✔similar
corresponding point
✔✔The most basic way to test the tension of a belt is to use __________. - ✔✔your
sense of touch
✔✔The three (3) components for a belt drive system are: - ✔✔Belt, driver sheave, and
driven sheave.
✔✔One important characteristic of a timing belt is that__________. - ✔✔it will not slip
during operation
✔✔In the calculation of shaft speed and shaft torques of a belt drive system, which of
the following applies? - ✔✔shaft speeds are inversely proportional to pitch diameters
✔✔A belt drive having a 12 inch driver pulley and a 6 inch driven pulley has a pulley
ratio of__________. - ✔✔0.5
AND ANSWERS SURE A+
✔✔A machine shaft and bore should always be checked for out-of-round status before
performing what task? - ✔✔Pressing a bearing
✔✔Bearing metal that flexes during use is the cause of __________ in a bearing. -
✔✔Ultimate fatigue
✔✔A(n) __________ bearing has inner and outer races that allow it to carry heavier
axial loads than a standard ball bearing. - ✔✔angular contact
✔✔__________ couplings are used to act as a safety device if torque overload occurs. -
✔✔Clutch
✔✔In a mechanical transmission system an electric motor is also called a __________.
- ✔✔prime mover
✔✔The two major types of misalignment that are corrected by shaft alignment are
__________. - ✔✔angular and parallel
✔✔A machine's moving component slides over a(n) __________ bearing's surface with
only a lubrication film between them. - ✔✔plain
✔✔Motor shaft runout is checked to make sure of proper __________. - ✔✔alignment
of mating components
✔✔Before installing a flexible coupling you should check for __________. - ✔✔run out
✔✔The mechanical advantage of a gear drive system is the ratio of the number of teeth
of the driven gear divided by __________. - ✔✔the number of teeth of the driver gear
, ✔✔The coupling provides a secure method of transmitting __________ from one shaft
to another. - ✔✔torque and speed
✔✔A shaft coupling may be out of round if a dial indicator shows __________. - ✔✔any
movement
✔✔The radial load capacity of a linear bearing increases with __________. - ✔✔A
greater number of ball
✔✔The three (3) types of shaft-to-adjacent-shaft power transmissions are__________. -
✔✔belt drive, chain drive, and gear drive
✔✔The procedure for aligning two shafts is to check and correct for
__________and______misalignment in two planes, vertical and horizontal. - ✔✔angular
and parallel
✔✔The fractional horsepower (FHP) V-belt, also called a light duty belt is designed for
low power application below __________Hp. - ✔✔7.5HP
✔✔The V-belt should ride __________ in the groove with its top near the top of the
sheave; the V-belt does not touch the __________ of the sheave. - ✔✔high, bottom
✔✔The maximum allowable deflection force on a belt is __________ than the minimum
deflection force. - ✔✔50% greater
✔✔Pitch is defined as the distance between a point and a __________. - ✔✔similar
corresponding point
✔✔The most basic way to test the tension of a belt is to use __________. - ✔✔your
sense of touch
✔✔The three (3) components for a belt drive system are: - ✔✔Belt, driver sheave, and
driven sheave.
✔✔One important characteristic of a timing belt is that__________. - ✔✔it will not slip
during operation
✔✔In the calculation of shaft speed and shaft torques of a belt drive system, which of
the following applies? - ✔✔shaft speeds are inversely proportional to pitch diameters
✔✔A belt drive having a 12 inch driver pulley and a 6 inch driven pulley has a pulley
ratio of__________. - ✔✔0.5
