Trades and Apprenticeship

If each common rafter (including tail) of a gable roof is 14 long, how many 16 pieces of lumber will ...

If each common rafter (including tail) of a gable roof is 14 long, how many 16 pieces of lumber will ...

If each common rafter (including tail) of a gable roof is 14 long, how many 16 pieces of lumber will be needed
  to provide common rafters for a 30-long building with no overhang, constructed on 24 centers?
 
  a. 32
  b. 30

MalorieB   34   1 Reply

Klove4

A double back-to-back seal is classified as a(n) _____.

A double back-to-back seal is classified as a(n) _____.

A double back-to-back seal is classified as a(n) _____.
 
  a. inside seal
  b. outside seal
  c. single sealing unit
  d. multiple sealing unit


[Ques. 2] Fine to large cracks that radiate from the cent

beefybabies   34   3 Replies

geraldmanullang

A water supply line that a plumber is installing requires the close control of flow at all times. To ...

A water supply line that a plumber is installing requires the close control of flow at all times. To ...

A water supply line that a plumber is installing requires the close control of flow at all times. To ensure
  maximum control, the plumber should install a _____.
 
  a. ball valve
  b. check valve
  c. globe valve
  d.

BROSE0407   34   2 Replies

BROSE0407

Which of the following rules identify actions that are allowed but not required and typically cover ...

Which of the following rules identify actions that are allowed but not required and typically cover ...

Which of the following rules identify actions that are allowed but not required and typically cover options or
  alternative methods?
 
  a. Mandatory rules
  b. Code rules
  c. Optional rules
  d. Permissive rules
[

HereIam   34   2 Replies

HereIam

Blemishes or other surface imperfections due to faulty formwork will show up as the _____.

Blemishes or other surface imperfections due to faulty formwork will show up as the _____.

Blemishes or other surface imperfections due to faulty formwork will show up as the _____.
 
  a. concrete cures
  b. surface is exposed to weather
  c. light conditions vary
  d. structure settles


[Ques. 2

MrMiau   34   2 Replies

MrMiau

Drawings that show a building's location along with topographic details, such as contour lines and ...

Drawings that show a building's location along with topographic details, such as contour lines and ...

Drawings that show a building's location along with topographic details, such as contour lines and trees, are
  called _____.
 
  a. site plans
  b. architectural layouts
  c. topographic maps
  d. foundation views
[

ebonyadams   34   3 Replies

medes1

The worker using the platform controls on an aerial lift is designated as the _____.

The worker using the platform controls on an aerial lift is designated as the _____.

The worker using the platform controls on an aerial lift is designated as the _____.
 
  a. controller
  b. operator
  c. driver
  d. conductor


[Ques. 2] If a problem with an aerial lift is found while

guccigangcuggu   34   2 Replies

guccigangcuggu

The device used to prove that a burner flame is present in a furnace with hot surface ignition is a ...

The device used to prove that a burner flame is present in a furnace with hot surface ignition is a ...

The device used to prove that a burner flame is present in a furnace with hot surface ignition is a _____.
 
  a. thermocouple
  b. glow coil
  c. flame-sensing rod
  d. bimetal switch


[Ques. 2] The min

keke12345676   34   2 Replies

keke12345676

To prevent bending and other damages, open-web steel joists should be stored _____.

To prevent bending and other damages, open-web steel joists should be stored _____.

To prevent bending and other damages, open-web steel joists should be stored _____.
 
  a. on their bottom chords
  b. lying on one side
  c. standing on end
  d. on their top chords


[Ques. 2] Open-web

michaelmorris17   34   2 Replies

michaelmorris17

A vapor barrier material that is applied over wall studs and ceiling joists after insulation is ...

A vapor barrier material that is applied over wall studs and ceiling joists after insulation is ...

A vapor barrier material that is applied over wall studs and ceiling joists after insulation is installed is _____.
 
  a. aluminum foil
  b. house wrap
  c. rigid foam board
  d. polyethylene film


[Ques. 2

MalorieB   34   3 Replies

Lewibr02

A compressor may not be able to start if _____.

A compressor may not be able to start if _____.

A compressor may not be able to start if _____.
 
  a. the high- and low-side pressures are equalized
  b. the high- and low-side pressures are not equalized
  c. a fan motor is running
  d. the crankcase heater is on
[br

nevinjoshy2001   34   2 Replies

nevinjoshy2001

Measurements should be recorded in field notes _____.

Measurements should be recorded in field notes _____.

Measurements should be recorded in field notes _____.
 
  a. as they are taken
  b. hourly
  c. whenever there is time to do so
  d. at the end of the day


[Ques. 2] A vertical distance above a datum poi

abbyraelax   34   1 Reply

amyarango11

What thread class is used if rapid assembly and disassembly of a part is required?

What thread class is used if rapid assembly and disassembly of a part is required?

What thread class is used if rapid assembly and disassembly of a part is required?
 
  a. UNC
  b. UNEC
  c. UNF
  d. UNEF


[Ques. 2] At approximately 100mA, shock is likely to be fatal if it lasts more

Annmarie   34   2 Replies

Annmarie

Gridlines are used to _____. (Multiple Choice)

Gridlines are used to _____. (Multiple Choice)

Gridlines are used to _____.
 
  A) show changes in topography within a building structure
  B) indicate that an object has been broken off
  C) indicate land boundaries on a site plan
  D) make it easy to refer to specific

lover   34   2 Replies

lover

What is the length of a 4L460 belt?

What is the length of a 4L460 belt?

What is the length of a 4L460 belt?
 
  A) 4.6 inches
  B) 46 centimeters
  C) 46 inches
  D) 48 inches


[Ques. 2] Lever-type grease guns can develop pressures up to _____.
 
  A) 1,000 psi

jessicakissinge   34   1 Reply

nsc95

A _____ is a water supply fitting used to close the end of a copper pipe.

A _____ is a water supply fitting used to close the end of a copper pipe.

A _____ is a water supply fitting used to close the end of a copper pipe.
 
  A) sweat cap
  B) sweat union
  C) sweat flange
  D) sweat-to-compression adapter


[Ques. 2] _____ are used to provide horizo

aac387   34   2 Replies

aac387

If the needle on the pressure gauge fluctuates erratically during a hydrostatic test, this indicates ...

If the needle on the pressure gauge fluctuates erratically during a hydrostatic test, this indicates ...

If the needle on the pressure gauge fluctuates erratically during a hydrostatic test, this indicates that _____.
 
  A) the pressure is too low B) the pressure is too high
  C) there is air trapped in the system D) there is a leak

emilyhoffman   34   1 Reply

sandhya@123

The two most important goals for green building practices are to minimize the impact a building has ...

The two most important goals for green building practices are to minimize the impact a building has ...

The two most important goals for green building practices are to minimize the impact a building has on the environment and to ________.
 
  A) Create healthy indoor air quality
  B) Prevent moisture from penetrating the thermal envelo

christopher mar   34   2 Replies

christopher mar

The two most important characteristics to consider when purchasing a hammer or other striking tool ...

The two most important characteristics to consider when purchasing a hammer or other striking tool ...

The two most important characteristics to consider when purchasing a hammer or other striking tool are ________.
 
  A) Price and manufacturer B) Weight and feel
  C) Design and look D) Metal used and handle


[Ques. 2

smcc617   34   2 Replies

smcc617

An advantage of OVE framing is that it ________ a building's thermal efficiency.

An advantage of OVE framing is that it ________ a building's thermal efficiency.

An advantage of OVE framing is that it ________ a building's thermal efficiency.
 
  A) Does not affect B) Increases C) Decreases


[Ques. 2] Which of the following classifications of finger-jointed material meets all t

queeny   34   3 Replies

molly123456789

A yellow tag on a scaffold means that it _____.

A yellow tag on a scaffold means that it _____.

A yellow tag on a scaffold means that it _____.
 
  A) may not be used
  B) may be used only in dry weather
  C) does not meet all safety standards
  D) is safe for all uses


[Ques. 2]

raffat naseem   34   1 Reply

bcoleman2353

What is the typical spacing for boards when installing board-and-batten siding?

What is the typical spacing for boards when installing board-and-batten siding?

What is the typical spacing for boards when installing board-and-batten siding?
 
  A) 24 o.c. B) 18 o.c. C) 12 o.c. D) 16 o.c.


[Ques. 2] When steel wool is used to clean copper tubing, it should be _____.
 

keke12345676   34   1 Reply

Quinn

Why must condensate pumps used with condensing furnaces be approved for furnace condensate use? ...

Why must condensate pumps used with condensing furnaces be approved for furnace condensate use? ...

Why must condensate pumps used with condensing furnaces be approved for furnace condensate use?
 
  A) The condensate from a furnace is mildly acidic and can damage the materials in some condensate pumps.
  B) The condensate from a fu

dcrone   34   2 Replies

dcrone

Air that is mixed with the fuel before it is ignited is referred to as:

Air that is mixed with the fuel before it is ignited is referred to as:

Air that is mixed with the fuel before it is ignited is referred to as:
 
  A) Ignition air. B) Combustion air. C) Secondary air. D) Primary air.


[Ques. 2] How can you determine the amount of airflow in a heat pump?

raffat naseem   34   2 Replies

raffat naseem

Why do many building codes restrict the use of unvented gas-fired space heaters?

Why do many building codes restrict the use of unvented gas-fired space heaters?

Why do many building codes restrict the use of unvented gas-fired space heaters?
 
  A) They heat unevenly.
  B) They tend to be less efficient than vented space heaters.
  C) It is difficult to connect ductwork to them.
  D

Juicy93   34   1 Reply

Annahindrance

A heat pump outdoor unit is installed:

A heat pump outdoor unit is installed:

A heat pump outdoor unit is installed:
 
  A) Directly on the ground.
  B) On a concrete pad.
  C) On a raised platform above the snow line.
  D) In an excavation whose bottom is below the frost line.


[Ques

heyoplshelp   34   2 Replies

heyoplshelp

What is the disadvantage of air bypass?

What is the disadvantage of air bypass?

What is the disadvantage of air bypass?
 
  A) Excessive air noise in the zones that are not calling
  B) It creates a negative pressure in the zone that is calling.
  C) Evaporators can freeze and furnaces can trip on high limit

lyss96   34   1 Reply

Espresso

If combustion air openings pass through horizontal ducts with 4,000 BTU input, how large should the ...

If combustion air openings pass through horizontal ducts with 4,000 BTU input, how large should the ...

If combustion air openings pass through horizontal ducts with 4,000 BTU input, how large should the openings measure?
 
  A) 4 sq in B) 2 sq in C) 3 sq in D) 1 sq in


[Ques. 2] Flex duct is easy to install and quiet bu

aac387   34   1 Reply

Kellivycital

Larger-tonnage refrigerant units use which kinds of chillers?

Larger-tonnage refrigerant units use which kinds of chillers?

Larger-tonnage refrigerant units use which kinds of chillers?
 
  A) Reciprocating and screw compressor chillers B) Centrifugal and screw compressor chillers
  C) Reciprocating and scroll compressor chillers D) Scroll and centrifugal

jihuygu   34   2 Replies

jihuygu

What is the airflow through a 2 ft by 3 ft hole if the air velocity is 100 ft per minute?

What is the airflow through a 2 ft by 3 ft hole if the air velocity is 100 ft per minute?

What is the airflow through a 2 ft by 3 ft hole if the air velocity is 100 ft per minute?
 
  A) 100 CFM B) 2  3 = 6 sq feet; 6  100 FPM = 600 CFM
  C) 2 + 3 = 5 sq feet; 5  100 FPM = 500 CFM D) 2  3 = 6 sq feet; 100 FPM/6 = 17 CFM[br

Spam839656   34   1 Reply

princess34

What is the major advantage of mini-split air-conditioning systems?

What is the major advantage of mini-split air-conditioning systems?

What is the major advantage of mini-split air-conditioning systems?
 
  A) Shorter line sets B) Lower cost
  C) Higher efficiency D) Air ducting is not necessary.


[Ques. 2] What does the phrase dried in mean?

rylie4.4   34   1 Reply

Quinn

What are post tension cables, reinforcing rods, and wire mesh used for in construction?

What are post tension cables, reinforcing rods, and wire mesh used for in construction?

What are post tension cables, reinforcing rods, and wire mesh used for in construction?
 
  A) Reinforcing residential roofing B) Reinforcing light frame construction
  C) Reinforcing concrete D) Reinforcing asphalt driveways

[

jj35   34   3 Replies

coolbean1212

How can dehumidification reduce the required capacity of a mechanical cooling system?

How can dehumidification reduce the required capacity of a mechanical cooling system?

How can dehumidification reduce the required capacity of a mechanical cooling system?
 
  A) By precooling the air entering the evaporator
  B) By allowing the cooling system to be sized to meet just the sensible latent load
  C)

jouranngreen108   34   2 Replies

jouranngreen108

What protective devices do electric furnaces typically have?

What protective devices do electric furnaces typically have?

What protective devices do electric furnaces typically have?
 
  A) Phase loss monitors
  B) Fusible links and thermal overloads in series with the heating elements
  C) Magnetic overload relays
  D) Pilot duty thermal overl

Spam839656   34   2 Replies

Spam839656

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nevinjoshy2001   34   3 Replies

ilhjsh

What is the material inside the filter drier called?

What is the material inside the filter drier called?

What is the material inside the filter drier called?
 
  A) Wadding B) Hydrogen peroxide
  C) Desiccant D) Alcohol


[Ques. 2] The maximum pressure drop for a suction line should not exceed:
 
  A) 3 psi

buttsuni   34   3 Replies

Lissapoo12

Why should oil or grease never be used to lubricate oxygen or acetylene regulators?

Why should oil or grease never be used to lubricate oxygen or acetylene regulators?

Why should oil or grease never be used to lubricate oxygen or acetylene regulators?
 
  A) It can react with certain chemicals or materials and result in an explosion.
  B) It can result in valve damage due to corrosion.
  C) It

BROSE0407   34   3 Replies

THOTLESLEY

The four characteristics of a vibration cycle are velocity, displacement, acceleration, and ...

The four characteristics of a vibration cycle are velocity, displacement, acceleration, and ...

The four characteristics of a vibration cycle are velocity, displacement, acceleration, and ________.
 
  A) resonance B) wave length C) volume D) frequency


[Ques. 2] The vibration in a machine is caused by the ______

Ih8hw   34   2 Replies

Ih8hw

Explain what a net meter is. What will be an ideal ...

Explain what a net meter is. What will be an ideal ...

Explain what a net meter is.
 
  What will be an ideal response?

 Q. 2

Explain what a substation is and why it is important to the grid.
 
  What will be an ideal

supernumerary   34   3 Replies

bobo

One of the mechanical properties of all metals is resistance to electrical current flow. (True or false?)

One of the mechanical properties of all metals is resistance to electrical current flow. (True or false?)

One of the mechanical properties of all metals is resistance to electrical current flow.
 
  Indicate whether the statement is true or false

 Q. 2

Functions of welding power

buttssss   34   2 Replies

buttssss