Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

pipefitting > 11 > Flashcards

11 Flashcards

1
Q

Which code, standard or reference is used for hanger spacing when
installing steel pipe containing natural gas in a service building within a
refinery?
A CSA Z662.1 Oil and Gas pipeline
systems
B ASME/ ANSI B31 Process piping
code
C B149.1 Natural gas and Propane
Installation Code
D Canadian Building Safety
Standards Reference.

A

C B149.1 Natural gas and Propane
Installation Code

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which of the following will have the lowest supply pressure?
A propane
B butane gas
C manufactured gas
D natural gas

A

C manufactured gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

he rules for the construction of Nuclear Power Plant Components will be covered in ASME
Section:
A II
B I
C IV
D III

A

D III

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does ASME state pneumatic tests be no greater than?
A 110 psig
B 25 psig.
C 130 psig
D 75 psig

A

B 25 psig.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which of the following tools is used to check the performance of a base
mounted hydronic pump?
A Ohmmeter.
B Ammeter.
C Millivolt meter.
D Voltmeter.

A

B Ammeter.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What type of flange gasket material is used for intermediate pressures and temperatures
to a maximum of 260 C?
A Synthetic B Silicon
C Asbestos D Teflon

A

D Teflon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

At 72 degrees Fahrenheit, a type 2 polyvinyl chloride thermoplastic has a chemical
resistance to wet
chlorine
A Limited
B Unsatisfactory
C Satisfactory
D Unlimited

A

A Limited

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Piping systems that transport oxygen are in ….. color.
A Red
B Yellow
C White
D Green

A

B Yellow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The latent heat of fusion of ice is ______ kJ/Kg.
A 144
B 154
C 970
D 335

A

D 335

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

A hydronic system where the valves open and close changing the requirements for the total
gpm on the pump is the:
A wild loop circuit.
B primary loop circuit.
C individual zone circuit.
D two-pipe system.

A

B primary loop circuit.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which of the following dissolved gas found in water is found mostly in well water supplies
or other anaerobic sources?
A Radon
B Carbon Dioxide.
C Oxygen
D Hydrogen sulphide.

A

D Hydrogen sulphide.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

If you are using a lattice boom crane, and the load needs to be lifted both
outward and upward, what signals must you use to place the lift?
A Raise the boom and hold the load.
B Lower the boom and hold the load and then raise the load.
C Raise the load and then lower the boom and hold the load.
D Lower the boom and hold the load.

A

B Lower the boom and hold the load and then raise the load.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Angle valves operate in the same way as?

1)

Ball valves

2)

Gate valves

3)

Globe valves

4)

Plug valves

A

3)

Globe valves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

the valve installed on thermal storage tanks to prevent negative pressures is the?

1)

Pressure reducing valve

2)

Pressure relief valve

3)

Vacuum breaker

4)

Vacuum relief valve

A

3)

Vacuum breaker

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

When fully open, the valve that has the highest restriction of flow is?

1)

Ball valve

2)

Gate valve

3)

Globe valve

4)

Plug valve

A

3)

Globe valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

When stamped on the body of a valve, the initials WOG are an abbreviation for:

1)

Hot water, oil, or gas

2)

Water, oxygen, or gas

3)

Waste, oxygen, or gas

4)

Cold water, oil, or gas

A

4)

Cold water, oil, or gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The basic function of a pressure reducing valve is to?

1)

Either open or close to admit more or less water, as demanded by the system, at a relatively constant pressure.

2)

Control the pressure in the line by restricting the flow of water through the lines.

3)

Restrict the line pressure by controlling the pressure variation.

4)

Maintain the pressure variation by mechanically restricting to control pressure.

A

1)

Either open or close to admit more or less water, as demanded by the system, at a relatively constant pressure.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is “blowdown” in the context of PSVs?

1)

The maximum pressure the valve can handle

2)

The difference between the set pressure and the reseating pressure

3)

The rate at which the valve discharges

4)

The pressure at which the valve opens

A

2)

The difference between the set pressure and the reseating pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is “blowdown” in the context of PSVs?

1)

The maximum pressure the valve can handle

2)

The difference between the set pressure and the reseating pressure

3)

The rate at which the valve discharges

4)

The pressure at which the valve opens

A

2)

The difference between the set pressure and the reseating pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Which component in a hydraulic system converts hydraulic energy into mechanical energy?

1)

Pump

2)

Actuator

3)

Reservoir

4)

Filter

A

2)

Actuator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

For steam service, the valve recognized as the best is the?

1)

Solid wedge gate valve

2)

Globe valve

3)

Gate valve

4)

Ball valve

Reveal An

A

1)

Solid wedge gate valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

When cut grooving steel pipe for a hydraulic system what is the minimum
wall thickness of pipe required?

1)

Schedule 10.

2)

Schedule 40

3)

Schedule 80

4)

Schedule 160

A

3)

Schedule 80

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Which type of hydraulic control valve can vary the flow rate proportional to an input signal?

1)

Directional control valve

2)

Pressure relief valve

3)

Proportional valve

4)

Check valve

Reveal Answer

A

3)

Proportional valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is the role of a sequence valve in a hydraulic system?

1)

To filter contaminants

2)

To maintain a set pressure

3)

To ensure operations occur in a specific sequence

4)

To store hydraulic fluid

A

3)

To ensure operations occur in a specific sequence

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

The term “prime mover” refers to the?

1)

Power source which drives the pump

2)

Input component of a hydraulic system

3)

Output component of a hydraulic system

4)

Actuator of a hydraulic system

A

1)

Power source which drives the pump

26
Q

“Pressure” is defined as?

1)

A force moving through a distance

2)

A force moving through a distance in a given time

3)

A force acting over a given area

4)

A force applied to a load

A

3)

A force acting over a given area

27
Q

What material is commonly used for valve seats in high-temperature applications?

1)

Plastic

2)

Rubber

3)

Metal

4)

Teflon

A

3)

Metal

28
Q

What is the purpose of a backseat test in a valve?

1)

To ensure proper flow direction

2)

To check the integrity of the stem seal

3)

To evaluate the actuator performance

4)

To test the valve’s pressure rating

A

2)

To check the integrity of the stem seal

29
Q

Which material is commonly used for constructing test manifolds in high-pressure applications?

1)

Plastic

2)

Aluminum

3)

Stainless steel

4)

Carbon Steel

A

3)

Stainless steel

30
Q

What type of valve is commonly used in test manifolds for precise flow control?

1)

Ball valve

2)

Globe valve

3)

Needle valve

4)

Gate valve

A

3)

Needle valve

31
Q

How often should regular valve inspections be conducted in a high-use system?

1)

Annually

2)

Monthly

3)

Weekly

4)

Daily

A

2)

Monthly

32
Q

Monel is a high strength:

1)

stainless steel and titanium alloy

2)

bronze and aluminum alloy

3)

nickel and cadmium alloy

4)

nickel and copper alloy

A

4)

nickel and copper alloy

33
Q

A branch line is to be fitted to a return header. Which of the following configurations would tend to oppose the flow the least?

1)

a 45o
lateral

2)

a 30o
lateral

3)

a 60o
lateral

4)

a 90o
branch line

A

2)

a 30o
lateral

34
Q

In order to calculate the height of the instrument, you will have to:

1)

add the benchmark and the back sight together

2)

subtract the back sight from the benchmark

3)

add the foresight and the height of the instrument together

4)

subtract the foresight from the height of the instrument

Reveal Answer

A

1)

add the benchmark and the back sight together

35
Q

Medium temperature hot water systems operate at pressures ranging from:

1)

0 to 30 psig

2)

30 to 60 psig

3)

30 to 150 psig

4)

350 to 500 psig

A

3)

30 to 150 psig

36
Q

Most steam meters measure the __________________ of steam:

1)

volume

2)

pressure

3)

temperature

4)

weight

A

1)

volume

37
Q

__________________ tubing is often used for steam tracing applications:

1)

Stainless steel

2)

Aluminum

3)

Copper/nickel

4)

Titanium

A

1)

Stainless steel

38
Q

The operation of the thermodynamic steam trap is based on:

1)

Bernoulli’s Principle

2)

Pascal’s Law

3)

Dalton’s Principle

4)

Archimede’s Principle

A

1)

Bernoulli’s Principle

39
Q

A common type of mechanical system is a:

1)

one-pipe gravity steam heating system

2)

two-pipe gravity steam heating system

3)

one-pipe condensate pump system

4)

two-pipe condensate pump system

A

4)

two-pipe condensate pump system

40
Q

The operating pressures usually found in the steam and condensate mains of a condensate pump system are:

1)

positive pressure in the steam main and atmospheric pressure in the return main

2)

negative pressure in the steam main and positive pressure in the return main

3)

positive pressure in the steam main and negative pressure in the return main

4)

positive pressure in the steam main and positive pressure in the return main

Reveal Answer

A

1)

positive pressure in the steam main and atmospheric pressure in the return main

41
Q

The main function of a vapour heating system’s boiler return trap is to:

1)

return condensate to the boiler against gravity

2)

return condensate to the boiler against boiler pressure

3)

create and maintain positive steam pressure throughout the system

4)

prevent live steam from entering the condensate return lines of the system

A

2)

return condensate to the boiler against boiler pressure

42
Q

Boiler return traps operate on the principle of:

1)

pressure and temperature

2)

float and counterbalance

3)

pressure and vacuum

4)

reciprocating motion

A

2)

float and counterbalance

43
Q

What does the abbreviation WAGD stand for?

1)

Water and Gas Distribution

2)

Waste Anesthetic Gas Disposal

3)

Wet Air and Gas Delivery

4)

White Ammonia Gas Decomposition

A

2)

Waste Anesthetic Gas Disposal

44
Q

What type of gas is usually carried in a green-colored pipeline?

1)

Oxygen

2)

Medical Air

3)

Nitrous Oxide

4)

Vacuum

A

1)

Oxygen

45
Q

Which gas is commonly transported in a blue-colored pipeline?

1)

Nitrous Oxide

2)

Carbon Dioxide

3)

Oxygen

4)

Medical Air

A

1)

Nitrous Oxide

46
Q

What is the purpose of zone valves in a medical gas piping system?

1)

To regulate pressure

2)

To isolate sections of the system

3)

To control flow rate

4)

To filter contaminants

A

2)

To isolate sections of the system

47
Q

Which gas is typically carried in a black-colored pipeline?

1)

Nitrous Oxide

2)

Carbon Dioxide

3)

Oxygen

4)

Nitrogen

A

4)

Nitrogen

48
Q

What color is the pipeline for carbon dioxide gas according to CSA Z7396.1-17?

1)

Yellow

2)

Black

3)

White

4)

Grey

A

4)

Grey

49
Q

What is the primary function of a medical gas regulator?

1)

To filter gas

2)

To control flow rate

3)

To maintain pressure

4)

To store gas

A

3)

To maintain pressure

50
Q

What is the standard color for a pipeline carrying vacuum?

1)

Blue

2)

White

3)

Green

4)

Yellow

A

4)

Yellow

51
Q

Bending of underground pipe is not permitted on medical gas systems?

1) True

2) False
A

2) False

52
Q

What do vacuum lines need to be pressure tested to in a medical gas system?

1)

40 psig (275 kPa)

2)

50 psig (345 kPa)

3)

60 psig (415 kPa)

4)

1.5 x MAWP

A

3)

60 psig (415 kPa)

53
Q

What type of valves are to be used in a medical gas distribution system?

1)

Ball

2)

Gate

3)

Globe

4)

Butterfly

A

1)

Ball

54
Q

What is the required information on valve labels in a medical gas system?

1)

Type of gas and pressure

2)

Pressure and temperature

3)

Pressure and area supplied

4)

Type of gas and area supplied

A

4)

Type of gas and area supplied

55
Q

After a satisfactory pressure test, what type of test is then performed on medical gas systems?

1)

Gas test

2)

Purity test

3)

Oxidation test

4)

Sil-Fos penetration test

A

2)

Purity test

56
Q

What is the procedure for making a brazed joint on a medical air line?

1)

Clean tubing and fitting, purge with nitrogen, assemble joint, apply heat to tubing, apply brazing rod, let joint cool naturally

2)

Clean tubing and fitting, apply flux to tubing, assemble joint, apply head to tubing and fitting evenly, cool rapidly with damp cloth

3)

De-burr tubing, clean tubing and fitting, apply flux to tubing and fitting, assemble joint, apply heat evenly to tubing and fitting, apply brazing rod

4)

De-burr tubing, clean tubing and fitting, assemble joint, purge with nitrogen, apply heat evenly to tubing and fitting, apply brazing rod, let joint cool naturally

A

4)

De-burr tubing, clean tubing and fitting, assemble joint, purge with nitrogen, apply heat evenly to tubing and fitting, apply brazing rod, let joint cool naturally

57
Q

Copper piping used in medical gas systems shall be seamless type __________ or type __________.

1)

M, L

2)

M, K

3)

K, L

4)

L, DWV

A

3)

K, L

58
Q

Vacuum control valves larger than _________ may be of the butterfly type.

1)

1/2”

2)

3/4”

3)

1”

4)

2”

A

4)

2”

59
Q

“A system of standardized connections between cylinders of medical gases” is referencing which of the following?

1)

Diameter Index Safety System (DISS)

2)

Nominal Pipe Sizing (NPS)

3)

Standard Dimension Ratio (SDR)

4)

National Pipe Thread (NPT)

A

1)

Diameter Index Safety System (DISS)

60
Q

What is the minimum diameter of medical gas piping required by CSA Z7396?

a)

1/4 inch

b)

3/8 inch

c)

1/2 inch

d)

3/4 inch

A

c)

1/2 inch

pipefitting (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions