Introduction to Industrial Maintenance
EXAM AND STUDY GUIDE LATEST 2025
ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS WITH
RATIONALES (VERIFIED
ANSWERS)|ALREADY GRADED A+
a mechanical system for mechanical power transmission does not____ - Answers -
✔✔increase power
some rules for safe dress to wear around machinery when it is running are - Answers -
✔✔wear tight clothes and heavy duty shoes
______ may remove a lockout on the power source of a piece of mechanical equipment
- Answers - ✔✔only the person who installed the lockout
an industrial machine foundation usually consists of - Answers - ✔✔solid concrete
the grade of a bolt can be determined by - Answers - ✔✔the marking on the head of the
bolt
a soft foot condition on a motor mount should be corrected by - Answers - ✔✔shimming
one foot only
one revolution per second is equal to - Answers - ✔✔60 RPM
the groove in a shaft for a key is called a - Answers - ✔✔keyseat
the best instrument to use when measuring the inside width of a keyseat or the depth of
the keyseat is a - Answers - ✔✔dial caliper
the best way to remove a hub from a shaft is to - Answers - ✔✔use a bearing puller
when using a prony break, torque is computed by multiplying - Answers - ✔✔the prony
arm radius times load
as the torque on an electric motor increases - Answers - ✔✔current increases
, the function of a machine shaft is to - Answers - ✔✔transmit mechanical power from
one location to another
the three types of loads placed of bearings are - Answers - ✔✔radial, thrust, and
combination
the lock collar on a pillow block bearing - Answers - ✔✔is used to secure the shaft to
the bearing
pulley ratio is defined as the ratio of - Answers - ✔✔pitch diameter of the driven pulley
to the pitch diameter of the driver pulley
a belt drive system having a 12 inch driver pulley and a 6 inch driven pulley has a pulley
ratio of - Answers - ✔✔.5
belt span is defined as the - Answers - ✔✔distance between the points on the sheaves
where the belt touches each sheave
the sprocket ratio for a chain drive system having a driven sprocket with 54 teeth and a
driver sprocket with 18 teeth is - Answers - ✔✔3
in a chain drive system, the torque on the driven shaft will______ as the sprocket ratio
(SR) increases - Answers - ✔✔increase
the most common type of chain used for mechanical drive is a - Answers - ✔✔roller
chain
in a gear drive the ratio of the ____ can be used to compare gear ratio - Answers -
✔✔pitch diameter
one disadvantage of helical gears is - Answers - ✔✔side thrust
backlash is the - Answers - ✔✔difference between the thickness of a tooth and the
width of the tooth space
in a multiple gear drive an idler is used mainly to - Answers - ✔✔change direction of
rotation
a multiple gear drive has a driven gear of 60 teeth, an 8 tooth intermediate gear and 12
tooth driven gear. the overall gear ratio is - Answers - ✔✔5
a multiple gear drive has a driven gear of 60 teeth, an 8 tooth intermediate gear and 12
tooth driven gear. if the intermediate gear is removed the gear ratio will be - Answers -
✔✔5
EXAM AND STUDY GUIDE LATEST 2025
ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS WITH
RATIONALES (VERIFIED
ANSWERS)|ALREADY GRADED A+
a mechanical system for mechanical power transmission does not____ - Answers -
✔✔increase power
some rules for safe dress to wear around machinery when it is running are - Answers -
✔✔wear tight clothes and heavy duty shoes
______ may remove a lockout on the power source of a piece of mechanical equipment
- Answers - ✔✔only the person who installed the lockout
an industrial machine foundation usually consists of - Answers - ✔✔solid concrete
the grade of a bolt can be determined by - Answers - ✔✔the marking on the head of the
bolt
a soft foot condition on a motor mount should be corrected by - Answers - ✔✔shimming
one foot only
one revolution per second is equal to - Answers - ✔✔60 RPM
the groove in a shaft for a key is called a - Answers - ✔✔keyseat
the best instrument to use when measuring the inside width of a keyseat or the depth of
the keyseat is a - Answers - ✔✔dial caliper
the best way to remove a hub from a shaft is to - Answers - ✔✔use a bearing puller
when using a prony break, torque is computed by multiplying - Answers - ✔✔the prony
arm radius times load
as the torque on an electric motor increases - Answers - ✔✔current increases
, the function of a machine shaft is to - Answers - ✔✔transmit mechanical power from
one location to another
the three types of loads placed of bearings are - Answers - ✔✔radial, thrust, and
combination
the lock collar on a pillow block bearing - Answers - ✔✔is used to secure the shaft to
the bearing
pulley ratio is defined as the ratio of - Answers - ✔✔pitch diameter of the driven pulley
to the pitch diameter of the driver pulley
a belt drive system having a 12 inch driver pulley and a 6 inch driven pulley has a pulley
ratio of - Answers - ✔✔.5
belt span is defined as the - Answers - ✔✔distance between the points on the sheaves
where the belt touches each sheave
the sprocket ratio for a chain drive system having a driven sprocket with 54 teeth and a
driver sprocket with 18 teeth is - Answers - ✔✔3
in a chain drive system, the torque on the driven shaft will______ as the sprocket ratio
(SR) increases - Answers - ✔✔increase
the most common type of chain used for mechanical drive is a - Answers - ✔✔roller
chain
in a gear drive the ratio of the ____ can be used to compare gear ratio - Answers -
✔✔pitch diameter
one disadvantage of helical gears is - Answers - ✔✔side thrust
backlash is the - Answers - ✔✔difference between the thickness of a tooth and the
width of the tooth space
in a multiple gear drive an idler is used mainly to - Answers - ✔✔change direction of
rotation
a multiple gear drive has a driven gear of 60 teeth, an 8 tooth intermediate gear and 12
tooth driven gear. the overall gear ratio is - Answers - ✔✔5
a multiple gear drive has a driven gear of 60 teeth, an 8 tooth intermediate gear and 12
tooth driven gear. if the intermediate gear is removed the gear ratio will be - Answers -
✔✔5
