955 Exam Questions With All Correct
Answers 2025|2026 Latest Update!!!
One horsepower equals how many watts? CORRECT ANSWERS 746 watts
How many lb/s can a 1hp motor lift? CORRECT ANSWERS 550 ftlbs/s
What tool is used to turn a large pipe? CORRECT ANSWERS A chain wrench or a
strap wrench
What is ESD? CORRECT ANSWERS ELECTROSTATIC DISCHARGE
What does the color band on a Diode indicate? CORRECT ANSWERS cathode
What common device can be used to convert analog to digital? CORRECT ANSWERS
Diode
What is the housing of an electric circuit called? CORRECT ANSWERS Chassis
Where is the oiler installed in a pneumatic system? CORRECT ANSWERS after the
seperator
Which part of a hydraulic system has more pressure? CORRECT ANSWERS Pump
output
What type of bearing should not be greased? CORRECT ANSWERS Permanent seal
bearing
What is the raised part of a shaft called? CORRECT ANSWERS Shoulder
What is the feeler gauge used for? CORRECT ANSWERS To set or measure gap
What is a Tap used for? CORRECT ANSWERS Making threads
Name two bipolar transistors? CORRECT ANSWERS NPN and PNP
Fuses are used to protect what? CORRECT ANSWERS Personnel and equipment
Batteries are normally what type of current? CORRECT ANSWERS DC
What is 90W oil typically used for? CORRECT ANSWERS Gearboxes
What is the name of a key that is placed in the keyway that has one side flat and the
other rounded? CORRECT ANSWERS Woodruff key
, How do you reverse the turn direction of a three-phase motor? CORRECT ANSWERS
Switch 2 of the hot legs
What is EP grease best used for? CORRECT ANSWERS High temp low speed
Which will aid in the peak performance of a pneumatic system? CORRECT ANSWERS
Storage tank and accumulator
When replacing a fuse what is to be considered? CORRECT ANSWERS Voltage,
Amperage, Type
How do we increase the multiplication factor in a hydraulic system? CORRECT
ANSWERS smaller surface area piston to a larger one
If pressure regulator fails what component protects the system? CORRECT ANSWERS
Pressure relief valve
Why are key ways placed on a shaft? CORRECT ANSWERS To keep the pulley or
gear from turning on the shaft
In a pneumatic system what happens to the air when it is compressed? CORRECT
ANSWERS Volume is reduced and temperature is increased
RS232 format is considered? CORRECT ANSWERS Serial interface
The number 6-32 means what to a screw or a bolt? CORRECT ANSWERS 6mm, 32
threads per inch
What does 1/4-20 mean on a screw or bolt? CORRECT ANSWERS 1/4" shaft, 20
threads per inch
In the left-hand rule of magnetism, what direction does the thumb point? CORRECT
ANSWERS direction of current flow
What wrench indicates the tension on a bolt? CORRECT ANSWERS torque wrench
What is essential about oil? CORRECT ANSWERS Viscosity, cleanliness, grade
Heavier current is controlled by a CORRECT ANSWERS shunt
What is a spanner wrench used for? CORRECT ANSWERS To remove a spanner nut
Pilot light detection is produced through? CORRECT ANSWERS Thermocouple
If a transistor is in saturation its state is: CORRECT ANSWERS shorted
Answers 2025|2026 Latest Update!!!
One horsepower equals how many watts? CORRECT ANSWERS 746 watts
How many lb/s can a 1hp motor lift? CORRECT ANSWERS 550 ftlbs/s
What tool is used to turn a large pipe? CORRECT ANSWERS A chain wrench or a
strap wrench
What is ESD? CORRECT ANSWERS ELECTROSTATIC DISCHARGE
What does the color band on a Diode indicate? CORRECT ANSWERS cathode
What common device can be used to convert analog to digital? CORRECT ANSWERS
Diode
What is the housing of an electric circuit called? CORRECT ANSWERS Chassis
Where is the oiler installed in a pneumatic system? CORRECT ANSWERS after the
seperator
Which part of a hydraulic system has more pressure? CORRECT ANSWERS Pump
output
What type of bearing should not be greased? CORRECT ANSWERS Permanent seal
bearing
What is the raised part of a shaft called? CORRECT ANSWERS Shoulder
What is the feeler gauge used for? CORRECT ANSWERS To set or measure gap
What is a Tap used for? CORRECT ANSWERS Making threads
Name two bipolar transistors? CORRECT ANSWERS NPN and PNP
Fuses are used to protect what? CORRECT ANSWERS Personnel and equipment
Batteries are normally what type of current? CORRECT ANSWERS DC
What is 90W oil typically used for? CORRECT ANSWERS Gearboxes
What is the name of a key that is placed in the keyway that has one side flat and the
other rounded? CORRECT ANSWERS Woodruff key
, How do you reverse the turn direction of a three-phase motor? CORRECT ANSWERS
Switch 2 of the hot legs
What is EP grease best used for? CORRECT ANSWERS High temp low speed
Which will aid in the peak performance of a pneumatic system? CORRECT ANSWERS
Storage tank and accumulator
When replacing a fuse what is to be considered? CORRECT ANSWERS Voltage,
Amperage, Type
How do we increase the multiplication factor in a hydraulic system? CORRECT
ANSWERS smaller surface area piston to a larger one
If pressure regulator fails what component protects the system? CORRECT ANSWERS
Pressure relief valve
Why are key ways placed on a shaft? CORRECT ANSWERS To keep the pulley or
gear from turning on the shaft
In a pneumatic system what happens to the air when it is compressed? CORRECT
ANSWERS Volume is reduced and temperature is increased
RS232 format is considered? CORRECT ANSWERS Serial interface
The number 6-32 means what to a screw or a bolt? CORRECT ANSWERS 6mm, 32
threads per inch
What does 1/4-20 mean on a screw or bolt? CORRECT ANSWERS 1/4" shaft, 20
threads per inch
In the left-hand rule of magnetism, what direction does the thumb point? CORRECT
ANSWERS direction of current flow
What wrench indicates the tension on a bolt? CORRECT ANSWERS torque wrench
What is essential about oil? CORRECT ANSWERS Viscosity, cleanliness, grade
Heavier current is controlled by a CORRECT ANSWERS shunt
What is a spanner wrench used for? CORRECT ANSWERS To remove a spanner nut
Pilot light detection is produced through? CORRECT ANSWERS Thermocouple
If a transistor is in saturation its state is: CORRECT ANSWERS shorted
