Pipefitter Star Exam Study Guide
Questions And Answers Verified 100%
Correct
A machine has a primary pulley of 6 in. and a secondary pulley of 24 in. What is
the gear ratio? - ANSWER -4 to 1
A pipe stands 126 feet high and is filled with water. What is the pressure at 30 feet
above the bottom? - ANSWER -41 psi
What is the area of a circle if the diameter is 18 inches? - ANSWER -254.46 sq in
The change in state from a solid to a liquid is known as: - ANSWER -Fusion
The treatment of liquids in motion is known as - ANSWER -Hydro - dynamics
The weight of 1 cubic foot of water is: - ANSWER -62.4 lbs
The specific weight of air and water is: - ANSWER -1
The density of water is? - ANSWER -62.4
What should an outside attendant do to rescue a worker who shows physiological
effects of exposure in a confined space? - ANSWER -Notify response team and
allow them to rescue.
The treatment of liquids at rest is known as: - ANSWER -Hydrostatics
The density of 1 cu. in. of Mercury is: - ANSWER -.491 lbs
A pipe stands 252 feet high and is filled with water. What is the pressure at 30 feet
above the bottom? - ANSWER -96 psi
,What is the area of a circle if the diameter is 2 in? - ANSWER -3.14 sq in
The change in state from a Liquid to a gas is known as: - ANSWER -Vaporization
The use of air as a power source is known as: - ANSWER -Pneumatics
Exits from a trench 150 foot long and 4 foot deep must be located within how
many feet of a worker in the trench? - ANSWER -25 feet
For an extension ladder to be at the correct angle for safe use on a working surface
20 feet high. The ladder must be located how many feet away from the base? -
ANSWER -5
When the crane signaler's hand is pointed up with his/her finger moving in a
circle, it means: - ANSWER -Raise the boom
A sling is weakest in which position? - ANSWER -Choked position
The best knot to use when lifting pipe vertically is the: - ANSWER -Pipe Hitch
with a half hitch
Horizontal steam supply piping should be reduced in siz by using: - ANSWER -
Eccentric reducer (flat on bottom)
A float and thermostatic trap is a: - ANSWER -Thermostatic / thermodynamic trap
A vent is not needed on a condensate receiver when: - ANSWER -Mechanical
return is used
Steam supply using parallel flow is: - ANSWER -Steam and condensate flowing
in the same direction
A Hartford Loop is used for: - ANSWER -Protection for loss of water in the boiler
,A bushing is not a good replacement for a reducer because they: - ANSWER -
Offer more resistance to flow
What is the main reason for the taper on a pipc thread? - ANSWER -Ensure
progressively tighter fit
The color code for Type K copper tubing is: - ANSWER -Green
The best method to ensure that a plastic Joint is made properly, you should: -
ANSWER -Insert pipe into fitting and tum 1/4 tum and hold
Which of the following types of clamps are used to dampen a pipe's movement? -
ANSWER -Snubber
To properly align a flange you must perform what is commonly called a _______
hole: - ANSWER -Two
To order a reducing tee you should specify the size by: - ANSWER -Large end to
smaller end to center
The specific Gravity of a liquid can only be measured using the following
instrument: - ANSWER -hydrometer
The symbol π, is equivalent to: - ANSWER -3.14
The amount of heat it takes to raise one pound of water one degree Fahrenheit is
know as a/an: - ANSWER -BTU
When should a person designated as a attendant (hole watch) attempt to rescue a
worker that is trapped? - ANSWER -Never
What is the required distance for a crane to maintain from a 50Kv power line? -
ANSWER -10'
Which rigging configuration has the greatest sling strength? - ANSWER -Basket
, When lifting ohjects with sharp edges, you should use a: - ANSWER -Softener
What are the three types of steam traps? - ANSWER -Thermostatic,
Thermoodynamic, and Mechanical
What should be done to prepare a flange for the gasket Installation') - ANSWER -
Remove any paint or rust
A direct acting thermostat is used to: - ANSWER -Increase the pressure when the
temperature increases
What is the purpose of the oxygen and acetylene regulators? - ANSWER -To
reduce the pressures from the cyllllder to safe and workable pressures
The __________ is used to protect the weld puddle from contamination in the
SMAW process. - ANSWER -Flux
What does the G stand for in 2G, 5G, and 6G weld positions? - ANSWER -
Groove
What is Hydronics? - ANSWER -The science of heat transfer using water
What effect does the fill pressure (static) have on a closed loop pumping system? -
ANSWER -None
What has the largest effect on pump alignment? - ANSWER -What has the largest
effect on pump alignment?
A cooling tower must have a __________ or be open-site. - ANSWER -Backflow
preventer
In a refrigeration system, a condensable gas is: - ANSWER -Ammonia
What causes pressure drop? - ANSWER -Increase in friction
Questions And Answers Verified 100%
Correct
A machine has a primary pulley of 6 in. and a secondary pulley of 24 in. What is
the gear ratio? - ANSWER -4 to 1
A pipe stands 126 feet high and is filled with water. What is the pressure at 30 feet
above the bottom? - ANSWER -41 psi
What is the area of a circle if the diameter is 18 inches? - ANSWER -254.46 sq in
The change in state from a solid to a liquid is known as: - ANSWER -Fusion
The treatment of liquids in motion is known as - ANSWER -Hydro - dynamics
The weight of 1 cubic foot of water is: - ANSWER -62.4 lbs
The specific weight of air and water is: - ANSWER -1
The density of water is? - ANSWER -62.4
What should an outside attendant do to rescue a worker who shows physiological
effects of exposure in a confined space? - ANSWER -Notify response team and
allow them to rescue.
The treatment of liquids at rest is known as: - ANSWER -Hydrostatics
The density of 1 cu. in. of Mercury is: - ANSWER -.491 lbs
A pipe stands 252 feet high and is filled with water. What is the pressure at 30 feet
above the bottom? - ANSWER -96 psi
,What is the area of a circle if the diameter is 2 in? - ANSWER -3.14 sq in
The change in state from a Liquid to a gas is known as: - ANSWER -Vaporization
The use of air as a power source is known as: - ANSWER -Pneumatics
Exits from a trench 150 foot long and 4 foot deep must be located within how
many feet of a worker in the trench? - ANSWER -25 feet
For an extension ladder to be at the correct angle for safe use on a working surface
20 feet high. The ladder must be located how many feet away from the base? -
ANSWER -5
When the crane signaler's hand is pointed up with his/her finger moving in a
circle, it means: - ANSWER -Raise the boom
A sling is weakest in which position? - ANSWER -Choked position
The best knot to use when lifting pipe vertically is the: - ANSWER -Pipe Hitch
with a half hitch
Horizontal steam supply piping should be reduced in siz by using: - ANSWER -
Eccentric reducer (flat on bottom)
A float and thermostatic trap is a: - ANSWER -Thermostatic / thermodynamic trap
A vent is not needed on a condensate receiver when: - ANSWER -Mechanical
return is used
Steam supply using parallel flow is: - ANSWER -Steam and condensate flowing
in the same direction
A Hartford Loop is used for: - ANSWER -Protection for loss of water in the boiler
,A bushing is not a good replacement for a reducer because they: - ANSWER -
Offer more resistance to flow
What is the main reason for the taper on a pipc thread? - ANSWER -Ensure
progressively tighter fit
The color code for Type K copper tubing is: - ANSWER -Green
The best method to ensure that a plastic Joint is made properly, you should: -
ANSWER -Insert pipe into fitting and tum 1/4 tum and hold
Which of the following types of clamps are used to dampen a pipe's movement? -
ANSWER -Snubber
To properly align a flange you must perform what is commonly called a _______
hole: - ANSWER -Two
To order a reducing tee you should specify the size by: - ANSWER -Large end to
smaller end to center
The specific Gravity of a liquid can only be measured using the following
instrument: - ANSWER -hydrometer
The symbol π, is equivalent to: - ANSWER -3.14
The amount of heat it takes to raise one pound of water one degree Fahrenheit is
know as a/an: - ANSWER -BTU
When should a person designated as a attendant (hole watch) attempt to rescue a
worker that is trapped? - ANSWER -Never
What is the required distance for a crane to maintain from a 50Kv power line? -
ANSWER -10'
Which rigging configuration has the greatest sling strength? - ANSWER -Basket
, When lifting ohjects with sharp edges, you should use a: - ANSWER -Softener
What are the three types of steam traps? - ANSWER -Thermostatic,
Thermoodynamic, and Mechanical
What should be done to prepare a flange for the gasket Installation') - ANSWER -
Remove any paint or rust
A direct acting thermostat is used to: - ANSWER -Increase the pressure when the
temperature increases
What is the purpose of the oxygen and acetylene regulators? - ANSWER -To
reduce the pressures from the cyllllder to safe and workable pressures
The __________ is used to protect the weld puddle from contamination in the
SMAW process. - ANSWER -Flux
What does the G stand for in 2G, 5G, and 6G weld positions? - ANSWER -
Groove
What is Hydronics? - ANSWER -The science of heat transfer using water
What effect does the fill pressure (static) have on a closed loop pumping system? -
ANSWER -None
What has the largest effect on pump alignment? - ANSWER -What has the largest
effect on pump alignment?
A cooling tower must have a __________ or be open-site. - ANSWER -Backflow
preventer
In a refrigeration system, a condensable gas is: - ANSWER -Ammonia
What causes pressure drop? - ANSWER -Increase in friction
