Trades and Apprenticeship

When condensate under pressure is released to an area of lower pressure, it can result in _____. ...

When condensate under pressure is released to an area of lower pressure, it can result in _____. ...

When condensate under pressure is released to an area of lower pressure, it can result in _____.
 
  a. flash steam
  b. steam trap damage
  c. water hammer
  d. explosion

 Q. 2

rylee19   52   2 Replies

rylee19

Power transmission from one shaft to an adjacent, parallel shaft is done using _____.

Power transmission from one shaft to an adjacent, parallel shaft is done using _____.

Power transmission from one shaft to an adjacent, parallel shaft is done using _____.
 
  a. couplings
  b. drive shafts
  c. belts and chains
  d. hydraulics

 Q. 2[

rylee19   65   2 Replies

rylee19

When SMAW welders use the welder jargon word stinger they are talking about the:

When SMAW welders use the welder jargon word stinger they are talking about the:

When SMAW welders use the welder jargon word stinger they are talking about the:
 
  A) The kick the welder gives you when the machine is turned on
  B) The pain you get in your neck from the welding helmet
  C) The name brand on

rylee19   36   3 Replies

Duhitzlitzy

In welding detail drawings, welding symbols are used to show how the pieces are to be _____.

In welding detail drawings, welding symbols are used to show how the pieces are to be _____.

In welding detail drawings, welding symbols are used to show how the pieces are to be _____.
 
  a. cut
  b. joined
  c. aligned
  d. machined

 Q. 2

In DCEN m

rylee19   48   1 Reply

mrs_adair

A precisely drilled hole that controls the amount of gas entering a burner is called :

A precisely drilled hole that controls the amount of gas entering a burner is called :

A precisely drilled hole that controls the amount of gas entering a burner is called
 
  A) A metering device B) A carburetor C) An orifice D) A gas jet

 Q. 2

Postflow is us

rylee19   81   3 Replies

crg0202

Which types of oil feed system are generally self-purging?

Which types of oil feed system are generally self-purging?

Which types of oil feed system are generally self-purging?
 
  A) one pipe oil feed systems
  B) two pipe oil feed systems
  C) both one and two pipe systems are self purging
  D) both one and two pipe systems require manual

rylee19   30   3 Replies

joehendy

When is a forward curved centrifugal blower motor most likely to draw high amps?

When is a forward curved centrifugal blower motor most likely to draw high amps?

When is a forward curved centrifugal blower motor most likely to draw high amps?
 
  A) when the airflow to the blower is restricted
  B) when the airflow leaving the blower is restricted
  C) when the motor RPM is set lower than

rylee19   21   1 Reply

DunkinJr

The bypass diode can be tested ___________

The bypass diode can be tested ___________

The bypass diode can be tested ___________
 
  a. With an ohmmeter by testing the forward resistance and reverse resistance.
  b. By checking for voltage across the terminals when the panel is producing power.
  c. By shading the

rylee19   48   1 Reply

marcusb213

What occurs when gas is squeezed into a smaller space?

What occurs when gas is squeezed into a smaller space?

What occurs when gas is squeezed into a smaller space?
 
  A) The pressure and temperature lower. B) The pressure rises and temperature lowers.
  C) The pressure lowers and temperature rises. D) The pressure and temperature rise.
[

rylie4.4   19   3 Replies

imhoturnot

Matter is defined as: (Multiple Choice)

Matter is defined as: (Multiple Choice)

Matter is defined as:
 
  A) Physical objects that can be seen.
  B) Physical objects that emit energy.
  C) Anything that has weight, can be seen, and emits energy.
  D) Anything that has mass and takes up space.

[hr

rylie4.4   68   3 Replies

geraldmanullang

If molecules in substance A are moving at a higher rate than the molecules in substance B,which ...

If molecules in substance A are moving at a higher rate than the molecules in substance B,which ...

If molecules in substance A are moving at a higher rate than the molecules in substance B,which substance has the higher temperature?
 
  A) Substance B
  B) Substance A
  C) Molecular motion is not associated with temperature.

rylie4.4   37   2 Replies

rylie4.4

To set a dial indicator's freedom of movement ________.

To set a dial indicator's freedom of movement ________.

To set a dial indicator's freedom of movement ________.
 
  A) press in the plunger until the indicator's needle completes two full turns
  B) zero the dial indicator
  C) move the plunger to see one half turn in each direction

rylie4.4   59   1 Reply

oksanamad

Pneumatic controls operate by: (Multiple Choice)

Pneumatic controls operate by: (Multiple Choice)

Pneumatic controls operate by:
 
  A) Hydraulic pressure. B) Air pressure.
  C) Water pressure. D) Electricity.


[Ques. 2] Which of the following unit clearances is typically the largest?
 
  A) A 6-inc

rylie4.4   60   2 Replies

rylie4.4

When checking the resistance of the compressor start winding, the technician's multimeter shows OL. ...

When checking the resistance of the compressor start winding, the technician's multimeter shows OL. ...

When checking the resistance of the compressor start winding, the technician's multimeter shows OL. This indicates that:
 
  A) The winding is grounded. B) The winding has continuity and is good.
  C) The winding is shorted. D) The wi

rylie4.4   1301   2 Replies

rylie4.4

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   33   1 Reply

Quinn

How is the energy efficiency ratio (EER) calculated?

How is the energy efficiency ratio (EER) calculated?

How is the energy efficiency ratio (EER) calculated?
 
  A) The input in watts is added to the output in Btuh.
  B) The output in Btuh is divided by the input in watts.
  C) The output in Btuh is multiplied by the input in watts.

rylie4.4   32   2 Replies

rylie4.4

Smaller chillers typically use: (Multiple Choice)

Smaller chillers typically use: (Multiple Choice)

Smaller chillers typically use:
 
  A) Centrifugal or rotary compressors. B) Centrifugal or screw compressors.
  C) Reciprocating or scroll compressors. D) Rotary or hermetic compressors.


[Ques. 2] A common type

rylie4.4   59   1 Reply

kirandk

Define planned maintenance. (Multiple Choice)

Define planned maintenance. (Multiple Choice)

Define planned maintenance.
 
  A) Replacing all system components on a rotating basis
  B) Performing maintenance and testing whenever the system quits operating correctly
  C) Performing maintenance and testing based on a regul

rylie4.4   80   1 Reply

Hansolo18

The approximate heating value of propane is:

The approximate heating value of propane is:

The approximate heating value of propane is:
 
  A) 1,780 BTU per cubic foot. B) 1,000 BTU per cubic foot.
  C) 3,200 BTU per cubic foot. D) 2,500 BTU per cubic foot.


[Ques. 2] Chilled water systems use a primary

rylie4.4   51   2 Replies

rylie4.4

It is important to insulate and seal ductwork. Studies have shown duct leakage can average as high ...

It is important to insulate and seal ductwork. Studies have shown duct leakage can average as high ...

It is important to insulate and seal ductwork. Studies have shown duct leakage can average as high as 40 in existing residential homes.
 
  Indicate whether the statement is true or false


[Ques. 2] One of the primary

rylie4.4   31   2 Replies

rylie4.4

When carrying plywood or other sheet material on a windy day, you should _____.

When carrying plywood or other sheet material on a windy day, you should _____.

When carrying plywood or other sheet material on a windy day, you should _____.
 
  A) carry it over your head
  B) carry it so the edge of the sheet points to the wind
  C) make sure the veneer side is facing into the wind

rylie4.4   64   2 Replies

rylie4.4

In an area where freezing drizzle is common in winter, which defrost interval stands the best chance ...

In an area where freezing drizzle is common in winter, which defrost interval stands the best chance ...

In an area where freezing drizzle is common in winter, which defrost interval stands the best chance of
  keeping a heat pump outdoor coil free of frost?
 
  a. 30 minutes
  b. 60 minutes
  c. 90 minutes
  d. 120 minute

rylie4.4   40   2 Replies

rylie4.4

Which of the following refrigerant piping techniques help to get oil to flow up a riser in a suction ...

Which of the following refrigerant piping techniques help to get oil to flow up a riser in a suction ...

Which of the following refrigerant piping techniques help to get oil to flow up a riser in a suction line?
 
  a. Selecting a line size that results in a very low velocity.
  b. Selecting a line size that is one or two sizes larger th

rylie4.4   44   2 Replies

rylie4.4

A vital part of the full-body harness is the fixed back _____.

A vital part of the full-body harness is the fixed back _____.

A vital part of the full-body harness is the fixed back _____.
 
  a. T-clamp
  b. A-frame
  c. K-connector
  d. D-ring


[Ques. 2] The main difference between an ERV and an HRV is the _____.
 

rylie4.4   18   3 Replies

kirandk

A heat pump thermostat will typically attempt to start the electric heat to supplement the heat pump ...

A heat pump thermostat will typically attempt to start the electric heat to supplement the heat pump ...

A heat pump thermostat will typically attempt to start the electric heat to supplement the heat pump when
  the setpoint is _____.
 
  a. 1F above the room temperature
  b. 1F below the room temperature
  c. 2F to 3F above t

rylie4.4   264   2 Replies

rylie4.4

To help prevent tooth decay, public water distribution systems add _____.

To help prevent tooth decay, public water distribution systems add _____.

To help prevent tooth decay, public water distribution systems add _____.
 
  a. chlorine
  b. alum
  c. fluoride
  d. activated carbon


[Ques. 2] In private water supply systems, water is drawn from ___

rylie4.4   38   3 Replies

kirandk

When you are installing a prehung door, what should be done with the factory-installed spacer shims ...

When you are installing a prehung door, what should be done with the factory-installed spacer shims ...

When you are installing a prehung door, what should be done with the factory-installed spacer shims between
  the door and the frame?
 
  a. Leave them in place permanently.
  b. Remove them after the door is attached to the roug

rylie4.4   41   1 Reply

richprack

To allow for settling, the space allowed between the rough header and window head jamb should be ...

To allow for settling, the space allowed between the rough header and window head jamb should be ...

To allow for settling, the space allowed between the rough header and window head jamb should be _____.
 
  a. 1/8 to 1/4
  b. 1/4 to 1/2
  c. 5/16 to 5/8
  d. 5/8 to 3/4


[Ques. 2] After a wall is finis

rylie4.4   44   3 Replies

mburthay

R-1234yf is stored in ________ containers with ________ labelling or handles.

R-1234yf is stored in ________ containers with ________ labelling or handles.

R-1234yf is stored in ________ containers with ________ labelling or handles.

▸ white, red

▸ N/A

Sagittarius   53   1 Reply

chickenlong

Which term is used to describe the friction that is generated between brake pads and the brake rotor ...

Which term is used to describe the friction that is generated between brake pads and the brake rotor ...

Which term is used to describe the friction that is generated between brake pads and the brake rotor while the vehicle is moving?

▸ Hydraulic

▸ Kinetic

▸ Static

▸ Resistive

Sagittarius   103   1 Reply

tumst

Describe the operation of a viscous clutch.

Describe the operation of a viscous clutch.

Describe the operation of a viscous clutch.

Sagittarius   53   1 Reply

Meghan.albamont

A gasoline engine provides more torque at a lower speed than an electric motor.a. Trueb. False

A gasoline engine provides more torque at a lower speed than an electric motor.a. Trueb. False

A gasoline engine provides more torque at a lower speed than an electric motor.
a. True
b. False

▸ true

▸ false

Sagittarius   48   1 Reply

karlywise05

Common reductants in diesel SCR systems are ammonia and urea water solutions.

Common reductants in diesel SCR systems are ammonia and urea water solutions.

Common reductants in diesel SCR systems are ammonia and urea water solutions.

▸ true

▸ false

Sagittarius   86   1 Reply

FreddyK10

Which type of display can be difficult to read in bright light?

Which type of display can be difficult to read in bright light?

Which type of display can be difficult to read in bright light?

▸ LCD

▸ LED

▸ CRT

▸ VFD

Sagittarius   95   1 Reply

larrybrads

Which of the following could be a cause of higher than normal starter motor current draw?

Which of the following could be a cause of higher than normal starter motor current draw?

Which of the following could be a cause of higher than normal starter motor current draw?

▸ Low voltage at the solenoid battery terminal

▸ Loose negative battery cable

▸ Voltage drop in the insulated circuit

▸ Seized engine

Sagittarius   235   3 Replies

DCRaven

What is the purpose of a radiator petcock?

What is the purpose of a radiator petcock?

What is the purpose of a radiator petcock?

Sagittarius   44   1 Reply

arrarwearwe

Engine torque always increases with engine rpm.

Engine torque always increases with engine rpm.

Engine torque always increases with engine rpm.

▸ true

▸ false

Sagittarius   79   1 Reply

mmmm_dat_userna

How much heat is produced by the combustion inside a cylinder?

How much heat is produced by the combustion inside a cylinder?

How much heat is produced by the combustion inside a cylinder?

▸ 0°C (32°F)

▸ 100°C (212°F)

▸ 1370°C (2500°F)

▸ It is too high to measure.

Sagittarius   86   1 Reply

jbarnett14

Which method of cleaning parts may leave a residue that must be removed by further cleaning?

Which method of cleaning parts may leave a residue that must be removed by further cleaning?

Which method of cleaning parts may leave a residue that must be removed by further cleaning?

▸ Cold chemical

▸ Hot chemical

▸ Thermal

▸ Abrasive

Sagittarius   1787   2 Replies

Anonymous

Why are electronics so heavily used on today's vehicles?

Why are electronics so heavily used on today's vehicles?

Why are electronics so heavily used on today's vehicles?

Sagittarius   39   1 Reply

fxinternational