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WorksheetsNPA 1140- Torque and Shaft
Total questions: 45
Worksheet time: 23mins
What is the formula of torque?
T = F x d
T = F/d
T = F + d
T = F - d
____________ is a cylindrical piece of material used to transmit mechanical power in the form of torque.
shaft
electric motor
generator
turbine
_______________ is the most common type of all shaft materials because it is cheap and easy to machine.
cold rolled steel
aluminum
bronze
plastic
Shaft specifications include the type of material, diameter, tolerance and ____________.
length
width
pressure
temperature
Select 4 commonly used shaft materials
cold rolled steel
hardened steel
chrome plated steel
stainless steel
bronze
Accuracy stock is a precision ground to more exact tolerance than standard round stock.
TRUE
FALSE
Select the different components of mechanical power transmission
shaft
bearing
pulley
gear
tire
The equipment that transmits mechanical power is called _________________.
driver or prime mover
driven device
The equipment that receives mechanical power is called _________________.
driver or prime mover
driven device
______________ is the positioning of the rotational centers of two or more shafts such that they are co-linear when the machines are under normal operating conditions
Shaft alignment
roller alignment
pulley alignment
winding alignment
Select the 3 criteria of shaft alignment
parallel
elevation
axial
series
star
What type of misalignment is described in the picture?
parallel
angular
combined
What type of misalignment is described in the picture?
parallel
angular
combined
What type of misalignment is described in the picture?
parallel
angular
combined
____________ describes the angle between 2 rotating axes
angularity
gap
offset
onset
The distance between the shafts of the drive and the driven device.
angularity
gap
offset
onset
The distance between rotation axes at a given point.
angularity
gap
offset
onset
The shafts is properly aligned when the angle between to rotating axes is zero.
TRUE
FALSE
The shafts is properly aligned when the gap between the couplings of the driver and the driven device is equal.
TRUE
FALSE
_____________ is a rotational force that causes an object to turn about a point.
torque
gravity
mass
weight
A 100 Newton force is applied to a torque wrench with a distance of 300 mm from the axes of rotation. What is the value of torque in Newton-meter?
3,000 Nm
300 Nm
30 Nm
3 Nm
This torque tool can be programmed and the most accurate torque tool available.
click type wrench
pneumatic torque wrench
DC Electric tools
hydraulic torque tools
This torque tool is a manually operated hand tool that produces a "click" when the torque setting is reached.
click type wrench
pneumatic torque wrench
DC Electric tools
hydraulic torque tools
This torque tool uses pressurized air to operate.
click type wrench
pneumatic torque wrench
DC Electric tools
hydraulic torque tools
This torque tool uses an electric motor to create the torque required to tighten a fastener.
click type wrench
pneumatic torque wrench
DC Electric tools
Electric Direct Drive
Portable power tools can be carried from one work site to another.
TRUE
FALSE
What type of mechanical power transmission component is in the picture?
bearing
gear
pulley
shaft
What type of mechanical power transmission component is in the picture?
bearing
gear
pulley
shaft
What type of mechanical power transmission component is in the picture?
bearing
gear
pulley
shaft
What type of mechanical power transmission component is in the picture?
bearing
gear
pulley
shaft
What type of shaft alignment tool is in the picture?
dial indicator
laser alignment tool
feeler guage
What type of shaft alignment tool is in the picture?
dial indicator
laser alignment tool
feeler guage
What type of shaft alignment tool is in the picture?
dial indicator
laser alignment tool
feeler guage
___________ is a tool to cut a specific sized round hole through a material.
drill bit
driver bit
extensions
specialty
___________ is a tool used to drive a fastener into a material.
drill bit
driver bit
extensions
specialty
___________ is used to drive a fastener in hard to reach areas.
drill bit
driver bit
drill extensions
specialty
The shaft from the device that delivers power is called the “driven shaft”.
TRUE
FALSE
The shaft that receives power is called the “driving shaft”.
TRUE
FALSE
Normally the driven shaft is the shaft that will not be moved after it is set up and leveled.
TRUE
FALSE
The driving shaft will normally be the shaft that is adjusted during alignment.
TRUE
FALSE
Select 3 results of mislignment
excess forces on bearings
excess vibration
excess loading on the device
excess voltage
excess resistance
When one shaft is not parallel with each other.
parallel misalignment
angular misalignment
When the center of one shaft is at an angle with the other shaft.
parallel misalignment
angular misalignment
Find the force needed when a torque of 15 Nm is applied at a distance of 500 mm?
0.03 N
0.3 N
3 N
30 N
Find the length of the torque wrench when 625 Nm is required to a force of 2500 N?
250 mm
25 mm
2.5 mm
2,500 mm
