22 Which type of equipment is not a kind of piping equipment?. 27 This type of pipe is commonly used for water, steam, oil, and gas: Steel or wrought iron Q.. 29 This type of pipe is c
Trang 1No Questions Answer
Q 1 For a liquid or a gas to flow, there must be a difference in: pressure
Q 3 When a valve is partially open, it is said to be in then position maximum flow
Q 5
This Q is referred to the exhibit number 1 (A, B, C)
Gate A is a:
solid wedge gate
Q 7 When conditions require that a valve must be quickly opened and closed, which kind
check valve
Trang 2Q 9 The main function of a check valve The rate of
flow
Q 10
Look at this picture of a valve Point A is the
Bonnet
Q 11
Look at this picture of a valve Point B is the:
Body
Q 12
The fix this leak, the worker probably has to replace
The gasket
Trang 3Q 13 Check valves are used
for unidirectional flow
Q 14 The most economical flow control valve for use with large diameter pipes is a
Q.15 Two piping system are said to be equivalent, when the are same fluid flow rate &
friction loss
Q 16 A tube is specified by its
thickness & outer diameter both
Q 17 Nominal size of a pipe is an indication of its diameter approximate
Q 18 For pipes that must be broken at intervals for maintenance, the connector used should
Q 20 The valve commonly used in pipes larger than 2" diameter is a Gate valve
Q 21 Nominal Pipe Size (NPS) of a pipe less than 12 inches in diameter indicates
its
Neither inner nor outer meter
Q 22 Which type of equipment is not a kind of piping equipment? Furnace
Q 23
The equipment bellow is called as
Eccentric Reducer
Trang 4Q 25
The name of valve in picture below is
Ball valve
Q 26 The valve body can not be connected to the process piping by: Glue
Q 27 This type of pipe is commonly used for water, steam, oil, and gas: Steel or wrought
iron
Q 28 Diaphragm valve is used for following case :
Fluid metal – corrosive or sticky
Q 29 This type of pipe is commonly used for water or gas service, and also as soil pipe Cast-iron
flange
Q 33 What is diffirence of relief valve and safety valve
Relief valve are used n liquid services and Safety valves
Trang 5are used in das services
Q 34 ID of 1/4" schedule 40 pipe is 0364" ID of a 1/2" schedule 40 pipe would be
Q 36 Socket welded joints are made by inserting the end of the pipe into a recess in a fitting
Q 37 Factors to consider when classifying piping are:
Q 38 Erosion is the removal of surface material by the action of numerous individual
impacts of
B) liquid particles
Q 39 Ultrasonic testing (UT) is a family of testing techniques based in the
Q 40 Which of the following statements is the advantages of Ultrasonic testing (UT)
High penetrating power, which allows the detection of the flaw deep in the part
Q 41 Radiographic Testing (RT) is a method of inspecting materials for hidden
flaws by using the ability of short wavelength electromagnetic radiation (high energy non-destructive
Trang 6photons) to penetrate various materials
Q 42 Nonmetallic piping systems are often used for fluids that is Environmentally
benign
Q 43 pressure test conducted on piping system can be tested for All of these
Q 44 When test the speed of leak in the ball valve, the test time depends on : Class of valve
Q 45 The pipe fitting which makes a 180° turn is called a/an… Return fitting
Q 46 Which type of gasket is most frequently used in a high-pressure hydraulic system
Q 47 Before breaking open the pipe joints for repair, what should be done with the isolation
valves on a high pressure steam system?
Check that the valves are closed, tagged and locked out
Q 48 Which of the following is not a reason for using cutting oil when threading pipe?
To protect threads from rust
Q 49 Internal Visual Inspection for Piping system include following duties:
A) Inspection Corrosion, Erosion, and Fouling
Q 50 Which type of following Ultrasonic thickness instrument can measure pipe with 0.04
in to 20 in diameter?
Numeric thickness readout
Q 51 External Visual Inspection for Piping system include following duties: Inspection
lecking
Q 52 Which of the following is the type of pipe inspection plan?
Trang 7B) Describe any required repairs
Describe any required repairs
Q 53 Which of the following is the task of the inspection plan?
A) Shedule required to monitor damage mechanisms
Shedule required to monitor damage mechanisms
B) Reliability and Efficient Operation
Q 54 Which of the following is an aim of pipe inspection plan?
A) A leak or failure a piping system
C) Finding out and complementing the default
Q 55 What should inspector consider following?
B) Operating pressure ranges
Q 56 Which of the following should do to develop an inspection plan?
A) Identifying and evaluating the process fluid
B) Collaborative work of the inspector
Q 57 Suiting the fluid working with Nonmetallic Piping?
Q 58 Kind of the traditional NDE techniques assess the nonmetallic piping?
Q 59 Purpose of testing?
Q 60 Performing of pressure testing?