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Med Gas Magic #s

Total questions: 104

Worksheet time: 52mins

Name
Class
Date
1.

Cylinders in storage shall be prevented from reaching temperatures of ___⁰F?

a)

100

b)

150

c)

125

d)

120

2.

ASTM B__ Standard Specification for seamless copper water tube, copper tube (type K, L, or M)?

a)

99

b)

819

c)

219

d)

88

3.

Standard for the storage, use and handling of compressed gases and Cryogenic Fluids in portable and stationary containers, cylinders and tanks bulk oxygen systems: NFPA__?

a)

99

b)

75

c)

40

d)

55

4.

Vacuum receivers shall be capable of withstanding __ psi?

a)

80

b)

100

c)

60

d)

120

5.

NFPA __ national electric code?

a)

55

b)

80

c)

70

d)

99

6.

Standard nitrogen or instrument air at ___ - ___ psi?

a)

50 - 60

b)

160 - 180

c)

150 - 180

d)

160 - 185

7.

The scale range of vacuum indicators shall be __"?

a)

5-29

b)

0-30

c)

0-29

d)

5-30

8.

Valve sample port shall be provided near the oxygen concentration monitor sensor connection for sampling of the gas from the oxygen concentrator unit?

a)

3/4"

b)

1/4"

c)

1/2"

d)

3/8"

9.

Medical air filter 98% efficient at __ or greater?

a)

10microns

b)

0.01microns

c)

1micron

d)

0.1microns

10.

Direct and unobstructed visual inspection of the interconnecting shaft through vent and inspection openings no smaller than ___ shaft diameter(s) in size (reciprocating compressor)?

a)

2

b)

2.5

c)

1.5

d)

5

11.

Normal vacuum gauge display ______?

a)

12"hgv

b)

20"hgv

c)

5"hgv

d)

30"hgv

12.

Medical air intake shall be ___ above ground level?

a)

6'

b)

12'

c)

20'

d)

25'

13.

Standing pressure test that will assure a pressure decay of less than .5% in __hrs?

a)

12

b)

24

c)

8

d)

36

14.

Standing pressure test for med. gas is ___ above operating pressure?

a)

20%

b)

10%

c)

50%

d)

25%

15.

Factory-installed copper tube on station outlets extending no further than 8" from the body of the terminal shall be not less than __?

a)

1/4"

b)

3/8"

c)

1/2"

d)

3/4"

16.

Instrument air is filtered to __ microns?

a)

0.01

b)

0.1

c)

1

d)

10

17.

Size of piping runouts to alarm panels and connecting tubing for gauges and alarm devices?

a)

1/4"

b)

3/8"

c)

1/2"

d)

3/4"

18.

Natural vent shall be installed within __ from floor and also from ceiling?

a)

6"

b)

1'

c)

4"

d)

2'

19.

Minimum free area of a natural vent - __in²?

a)

120

b)

144

c)

72

d)

81

20.

ASTM B____ Standard Specification for seamless copper tubing for air conditioning and refrigeration field service, copper ACR tube?

a)

280

b)

88

c)

99

d)

819

21.

Brazer must braze qualified procedure every _ month(s) to remain qualified?

a)

2

b)

12

c)

6

d)

18

22.

Factory-installed copper tube on station inlets extending no further than 8" from the body of the terminal shall be not less than __?

a)

1/4"

b)

3/8"

c)

1/2"

d)

3/4"

23.

Equal headers have not less than _ cylinders per header (manifold for gas cylinders)?

a)

3

b)

5

c)

6

d)

2

24.

There shall be __ of clearance around storage containers, vaporizers, cabinets of a bulk site and the EOSC?

a)

3'

b)

10'

c)

1'

d)

5'

25.

Standing vacuum test is a minimum of __" HGV to full vacuum?

a)

20

b)

12

c)

5

d)

10

26.

Medical gas shall have less than _____ gaseous hydrocarbons?

a)

100ppm

b)

25ppm

c)

200ppm

d)

10ppm

27.

Instrument air rated for minimum __% efficiency at 0.01 micron?

a)

99

b)

81

c)

89

d)

98

28.

Medical gas operating pressure above ___psi is not covered by NFPA 99 code?

a)

300

b)

185

c)

200

d)

150

29.

Liquid oxygen will expand ___ times?

a)

2500

b)

1700

c)

960

d)

860

30.

ASSE standard for inspectors?

a)

6020

b)

6010

c)

6050

d)

6030

31.

Bulk nitrous oxide system with a storage capacity of more than _____ft³?

a)

3200

b)

28,000

c)

20,000

d)

2800

32.

___-___ psi: station outlet shall be designed so as to prevent the removal of the adapter until the pressure has been relieved to prevent the adapter from injuring the user or others when removed from the outlet?

a)

185-200

b)

200-300

c)

175-185

d)

150-200

33.

Outlets in excess of _____ shall be D.I.S.S. connectors?

a)

120

b)

55

c)

80

d)

75

34.

Medical air compressor minimum run time for inspection with a demand of approximately 25% of the rate compressor capacity shall be created to cause the compressors to cycle on and off continuously and the dryers to operate?

a)

2

b)

1

c)

6

d)

12

35.

Minimum time for a standing pressure test for verifiers?

a)

1hr

b)

10mins

c)

24hrs

d)

30mins

36.

Med Gas type K sized __ shall be used over 185psi?

a)

1.5"

b)

3/4"

c)

3"

d)

2"

37.

On dissimilar metals sized __" and smaller, flux-coated brazing ribs shall be permitted to be used in lieu of applying flux to the surfaces being joined?

a)

1/4"

b)

3/8"

c)

1/2"

d)

3/4"

38.

Medical gas main and branches shall not be less than __?

a)

1/4"

b)

3/8"

c)

1/2"

d)

3/4

39.

Initial pressure test: pressure for gasses and vacuum piping shall be at ___ times working pressure and not less than ___ psi?

a)

2, 150

b)

2, 200

c)

1.5, 150

d)

1.5, 200

40.

One unobstructed mechanical exhaust shall be provided within _' of floor and adjacent to the cylinders or containers?

a)

6"

b)

2'

c)

3'

d)

1'

41.

Carbon monoxide alarm activates when CO exceeds ___?

a)

10ppm

b)

200ppm

c)

100ppm

d)

1ppm

42.

Mains and branches in medical-surgical vacuum systems shall be not less than __?

a)

1/4"

b)

3/8"

c)

1/2"

d)

3/4"

43.

There shall be a minimum ___ of backfill where there is no potential for damage from surface loads or surface conditions?

a)

12"

b)

18"

c)

24"

d)

36"

44.

Flame spread index of __ or less for a CMT?

a)

10

b)

25

c)

50

d)

200

45.

____ __ is for bulk gas, compressed gases, and Cryogenic Fluids Code?

a)

NFPA 99

b)

CGA 21

c)

NFPA 55

d)

CGA 40

46.

Instrument air should be dry to a point of ___?

a)

32⁰F

b)

-40⁰F

c)

22⁰F

d)

-22⁰F

47.

Nitrogen pressure for cross connection and vacuum test?

a)

100psi

b)

50psi

c)

120psi

d)

85psi

48.

Vacuum receivers shall be capable of withstanding a __" gauge HGV test?

a)

30

b)

20

c)

29

d)

12

49.

Instrument air dew point alarms when the temperature exceeds ___F indicating a high dew point?

a)

32⁰

b)

-20⁰

c)

-22⁰

d)

22⁰

50.

Automatic alarms shall restart after a power loss of no more than __ seconds?

a)

1

b)

5

c)

10

d)

15

51.

Flame spread rating of not greater than ___?

a)

25

b)

75

c)

100

d)

200

52.

Filter shall accrue no more than __ of matter from any outlet tested at verification?

a)

0.1mg

b)

1mg

c)

0.01mg

d)

10mg

53.

For WAGD system under __, use any noncorroding tube or ductwork be joined using any method that will result in a leak-free network when tested?

a)

5"HGV

b)

12"HGV

c)

29"HGV

d)

1"HGV

54.

Bulk oxygen or inert gas system with a storage capacity of more than ______ft³?

a)

1800

b)

3200

c)

20,000

d)

28,000

55.

Medical air liquid ring compressor standby header shall have attached cylinders sufficient for ____ of normal operation?

a)

1hr

b)

12hrs

c)

24hrs

d)

48hrs

56.

Joints shall be brazed within ___ after the surfaces are cleaned for brazing?

a)

8hrs

b)

4hrs

c)

30mins

d)

12hrs

57.

Alternate air source should be available __?

a)

Within 1 millisecond

b)

For up to 24hrs

c)

24/7

d)

Within 10 milliseconds

58.

Instrument air standby header shall be sufficient for __hr(s) of normal operation?

a)

3

b)

24

c)

1

d)

12

59.

(Manifold for cryogenic containers) There shall be a minimum of _ cylinders on the reserve header?

a)

2

b)

4

c)

3

d)

6

60.

A system with nonstandard pressures shall be tested at ___ higher or lower than other system?

a)

50%

b)

20%

c)

10psi

d)

20psi

61.

Med air intake shall be ___ away from an exhaust or vent?

a)

25'

b)

10'

c)

15'

d)

20'

62.

Cancelable audible alarm with minimum level of __dba at 3'?

a)

80

b)

85

c)

105

d)

120

63.

Standing pressure test for med gas and vacuum systems is for __?

a)

1hr

b)

24hrs

c)

6hrs

d)

2hrs

64.

Test coupons shall be welded and inspected, as a minimum, at the start of work and every _hr(s) thereafter, our when the machine is idle for more than 30 minutes, and at the end of the work period?

a)

6

b)

1

c)

3

d)

4

65.

Labels shall be a minimum of __ tall on liquid containers?

a)

3"

b)

1.5"

c)

1"

d)

2"

66.

Minimum pressure rating for memory metal and axially swaged fittings?

a)

200psi

b)

185psi

c)

300psi

d)

150psi

67.

Standard Specification for seamless and welded austenitic stainless steel tubing for general service?

a)

304

b)

306

c)

304, 306

d)

304, 316

68.

Temperature ratings on memory metal and axially swaged fittings?

a)

860⁰F

b)

1200⁰F

c)

1160⁰F

d)

1000⁰F

69.

Bulk nitrous oxide system with storage capacity of more than _____ lbs?

a)

1800

b)

20,000

c)

3600

d)

3200

70.

ASSE standard for maintenance personnel?

a)

6050

b)

6040

c)

6030

d)

6020

71.

Temperature of liquid oxygen?

a)

-22⁰F

b)

-35⁰F

c)

-225⁰F

d)

-300⁰F

72.

Maximum voltage rating for areas having pipe installed?

a)

440

b)

800

c)

600

d)

15kv

73.

ASTM B____ Standard Specification for seamless copper tube for medical gas systems, copper medical gas tubing (type K, L)?

a)

55

b)

819

c)

88

d)

219

74.

Sch. __ PVC is the minimum for vacuum systems in a Category 3 facility?

a)

20

b)

40

c)

80

d)

120

75.

___ mean(s) of entry/exit(s) at an outdoor central supply system site greater than 200ft²?

a)

Two

b)

Three

c)

One

d)

Four

76.

Air intakes shall be located a minimum of ___ above roof, door, window, exhaust, or another intake?

a)

3'

b)

25'

c)

10'

d)

15'

77.

Dew points shall be monitored and shall activate a local alarm and all master alarms when the dew point at system delivery pressure exceeds __⁰F?

a)

-22

b)

35

c)

20

d)

-44

78.

Standard air pressure should be at __ - __ psi?

a)

60-80

b)

55-60

c)

70-85

d)

50-55

79.

Central supply systems for CO² using permanently installed containers with product capacities greater than ____lbs is a bulk system?

a)

1000

b)

3200

c)

3600

d)

20,000

80.

Alarm indication when the medical surgical vacuum pressure in the main line of each vacuum system drops to or below ___HGV?

a)

5"

b)

20"

c)

12"

d)

10"

81.

WAGD pipe joined to medical surgical vacuum shall be connected a minimum distance of __ from any vacuum inlet?

a)

5'

b)

10'

c)

15'

d)

20'

82.

Medical air has ___ - ___ % oxygen?

a)

17-25

b)

19.5-32.5

c)

21.5-25.6

d)

19.5-23.5

83.

Medical gas tube type K shall be used on pressures greater than ___ psi?

a)

160

b)

185

c)

200

d)

175

84.

ASSE standard for instructors?

a)

6010

b)

6040

c)

6030

d)

6050

85.

___% oxygen is oxygen enriched?

a)

25.6

b)

22

c)

35

d)

23.5

86.

Relief valves for medical gas systems with less than ____ft³ med gas shall be permitted to be diffused locally by means than will not restrict flow?

a)

1200

b)

3200

c)

20,000

d)

3000

87.

Pipe labels shall be installed at intervals of not more than __'?

a)

20

b)

10

c)

15

d)

25

88.

Surfaces exhibiting a flame spread index not greater than __ is limited combustible?

a)

20

b)

25

c)

50

d)

200

89.

Flexible hose minimum burst gauge pressure?

a)

860psi

b)

1000psi

c)

1160psi

d)

1200psi

90.

ASSE standard for installers?

a)

6030

b)

6050

c)

6010

d)

6020

91.

No plastic or polymeric is allowed in systems with ___psi or greater?

a)

185

b)

300

c)

200

d)

350

92.

Area alarms will indicate when an increase or decrease of __% of total psi occurs?

a)

20

b)

15

c)

25

d)

10

93.

Brazed joints shall be made using a brazing alloy that exhibits a melting temperature in excess of _____F?

a)

1200⁰

b)

1160⁰

c)

1000⁰

d)

890⁰

94.

ASSE standard for verifiers?

a)

6010

b)

6040

c)

6020

d)

6030

95.

There shall be a __" minimum backfill over piping outside of a building?

a)

12

b)

36

c)

18

d)

42

96.

Label wraparound pipe ___ degrees on liquid containers?

a)

-300

b)

212

c)

185

d)

360

97.

Nitrous oxide & CO² cylinders in storage shall be prevented from reaching lower than ___F?

a)

-20

b)

20⁰

c)

35⁰

d)

-40

98.

Vacuum receivers shall be capable of withstanding a gauge pressure of ___psi & a vacuum of ___"HgV

a)

60, 30

b)

30, 60

c)

150, 24

d)

300,12

99.

EOSC size for ___% of system demand?

a)

100

b)

99

c)

85

d)

75

100.

Relief valve setting shall be ___ above normal operating pressure?

a)

75

b)

50

c)

60

d)

20

101.

MGR ankles shall be made of material with a melting point of at least ____⁰F?

a)

890

b)

1000

c)

1200

d)

2100

102.

If the medical-surgical vacuum source produces WAGD, the total concentration of oxidizers (Oxygen and Nitrous Oxide) shall be maintained below ___

a)

19.5%

b)

23.5%

c)

23.6%

d)

30%

103.

Efficiency of medical air filters at 1 micron or greater?

a)

99%

b)

89%

c)

75%

d)

98%

104.

This quiz seemed...

a)

Too long

b)

That's what she said

c)

Helpful

d)

Fnck you, Joey!

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