Set b test 1

1.

2 points

If a made ground electrode fails the resistance test, an added electrode must be at least how far away?

10 feet

6 feet

8 feet

4 feet

2.

2 points

How does the cooling tower dissipate heat?

Evaporation

Vacuum

Absorption

Condensation

3.

2 points

What is used to explain the meaning of nonstandardized symbols on blueprints?

Table of contents.

Legends.

Attributes.

Abbreviations.

4.

2 points

In a three-phase transformer, how many degrees is each phase displaced?

90°

30°

180°

120°

5.

2 points

Which wiring system uses two ungrounded conductors and one neutral conductor to provide
power and light?

Three-wire, single-phase.

Three-phase, four-wire.

Two-wire, single-phase.

Three-phase, three-wire.

6.

2 points

What type of site plan is more detailed?

Engineer

Construction

Architect

Surveyor

7.

2 points

A complete set of blueprints is usually comprised of how many categories?

Eight

Nine

Six

Seven

8.

2 points

To identify an insulated grounding conductor, the wire color should be green or green with what color stripes?

Yellow

Orange

White

Black

9.

2 points

What type of circuit breaker is considered the best for general use?

Magnetic

Thermal

Electric

Thermal-magnetic

10.

2 points

On a blueprint, the phrase “not to scale” is normally used

with a detail drawing.

to show a landscaping plan.

to show an installation procedure.

with a sectional drawing.

11.

2 points

Connecting all exposed, noncurrent-carrying metal parts of an electrical system to the Earth is what type of grounding?

Facility

Equipment

System

Electrical

12.

2 points

What is the pressure of a full H-size cylinder of oxygen?

2,300 psi.

2,200 psi.

2,500 psi.

2,400 psi.

13.

2 points

The amount of current a conductor can safely carry depends on the metal used, size of the wire, type of insulation, and

location of the conductor.

length of the wire.

type of wiring system.

type of load device.

14.

2 points

What is not connected to the boiler tank?

Water supply line.

Condensate return line.

Steam main line.

Fuel supply line.

15.

2 points

What type of transformer is used to eliminate spark hazards where flammable anesthetics are
used and to give added protection from electrical shock?

Delta.

Grounded wye.

Isolation.

Ungrounded wye.

16.

2 points

What other information, besides voltage, must be visible on panel boards?

Current rating and physical dimensions.

Number of wires and number of circuit breakers.

Current rating and number of wires.

Current rating and number of phases.

17.

2 points

Which statement describes improper care of blueprints?

They can be laid out on the floor while investigating a problem.

They must be kept away from food, drink, and tools while in use.

They can have a new approved transformer drawn on the plans by an authorized person.

They can be hung on a rack in the closet.

18.

2 points

Besides delta, what are the other two types of three-phase transformers the Air Force uses?

Grounded wye and ungrounded wye.

Wye and ungrounded wye.

Grounded wye and ungrounded delta.

Wye and grounded delta.

19.

2 points

Boilers normally operate at what steam pressure?

100 psi.

90 psi.

95 psi.

105 psi.

20.

2 points

What type of scale deals with increments of 12?

Architect

Engineer

Metric

Linear

21.

2 points

Panel boards must be rated at least as high as what capacity required for the load?

Voltage

Amperage

Branch

Feeder

22.

2 points

Pressure alarms should activate when the normal operating pressure varies by

±15 percent.

±5 percent.

±20 percent.

±10 percent.

23.

2 points

Medical air can not be obtained from

air compressors.

complex mixing system.

ambient room air.

cylinders.

24.

2 points

Medical air must be between

20 - 24 percent oxygen.

18.5 - 22.5 percent oxygen.

19.5 - 23.5 percent oxygen.

19 - 23 percent oxygen.

25.

2 points

Which transformer provides a steady secondary current and a varying voltage when loaded?

Constant-current.

Varying-potential.

Current.

Constant-potential.

26.

2 points

What is used to count ground-referenced electrons in an isolated power system?

Ground-referenced circuit-interrupter.

Line isolation monitor.

Circuit breaker.

In-line metering system.

27.

2 points

Which type of transformer provides a steady secondary voltage from no load to full load?

Current

Constant-potential

Varying-potential.

Constant-current.

28.

2 points

What is the steam pressure used for heating the MTF?

5 psi.

15 psi.

100 psi.

60 psi.

29.

2 points

What type of protective device is often found in bathrooms and wet locations within a medical facility?

Line isolation monitor.

Ground-fault circuit-interrupter.

Surge suppressor.

Uninterrupted power supply.

30.

2 points

What essential electrical system requires a time lag prior to re-energizing after a power
loss?

Critical

Emergency

Equipment

Life safety.

31.

2 points

Which wiring system is used in small structures where the main need is for lighting?

Three-wire, single-phase.

Two-wire, single-phase.

Three phase, four-wire.

Three-phase, three-wire.

32.

2 points

Pressure relief valves open if the pressure in a pipeline system exceeds the normal level by more than

30 percent.

50 percent.

60 percent.

40 percent.

33.

2 points

Which example is considered a primary normal ground electrode?

A 10-foot metal underground gas pipe with bonded joints.

A 15-foot metal underground water pipe with bonded joints.

A 10-foot metal underground water pipe with unbonded joints.

A 15-foot metal underground gas pipe with unbonded joints.

34.

2 points

What type of circuit provides power to the final overcurrent devices?

Primary

Branch

Secondary

Feeder

35.

2 points

A regulator is used to reduce the oxygen pressure to what safe operating range?

45 - 50 psi.

55 - 60 psi.

50 - 55 psi.

60 - 65 psi.

36.

2 points

What instrument is used to measure true power?

Wattmeter

Voltmeter

Ammeter

Multimeter

37.

2 points

Whose responsibility is it to maintain the generators when in use?

Medical logistics.

Base civil engineering.

Power production.

Biomedical equipment technician.

38.

2 points

How are circuit breakers rated?

Size and volts

Poles and amperes

Volts and amperes

Poles and volts.

39.

2 points

The quality of work to be done and the materials to be used in a construction project are defined by

legal contract.

the architect’s notes.

the owner’s wishes.

specifications.

40.

2 points

Which document is used as a template for other plans?

Elevation drawing.

Sectional drawing.

Working drawing.

Floor plan.

41.

2 points

Which three-phase distribution system is preferred by the Air Force?

Ungrounded wye.

Grounded delta.

Ungrounded delta.

Grounded wye.

42.

2 points

What is not part of an air handling unit?

Fans

Filters

Dampers

Ducts

43.

2 points

What type of information is found on a schematic?

Only electrical relationship between components.

Only component location.

Circuit board component layout.

Component name, location, and electrical relationship between components.

44.

2 points

What are the principal parts of a transformer?

Core, enclosure, and primary and secondary windings.

Core, enclosure, and high and low voltages.

Core, inductors, and primary and secondary windings.

Casing, magnet, and high and low voltages.

45.

2 points

A small, flexible cable, usually covered in rubber, is a description of a

cord

wire

conductor

cable

46.

2 points

One cubic foot of liquid oxygen is equal to how many H-cylinders of oxygen gas?

5.

4.5.

4.

3.5.

47.

2 points

What type of wiring system includes wire sizes No. 40 to No. 4/0?

kcmil

AWG

NEC

MCM

48.

2 points

Which is not a typical scale used in blueprint production?

Engineer

Metric

Architect

Linear

49.

2 points

How are large transformers cooled?

With an air conditioner.

With a circulating fan.

By air circulation

By immersion in oil.

50.

2 points

What is not part of the chiller’s refrigeration loop?

Compressor.

Cooling tower.

Condenser.

Evaporator.