Part # 5 Flashcards
- Technicians use MSDS sheets to:
a. Know the best brand of product to purchase
b. Be aware of the best source of lubricants for machinery on site
c. Know what materials are available for the technicians use
d. Be aware of flammable, corrosive or explosive substances (D)
- What is potential measured in?
a. Amps
b. Ohms
c. Volts (C)
d. Watts
- Infrared and tube heaters transfer heat by:
a. Conduction
b. Radiation (B)
c. Convection
d. A latent process
- Labels on drums of liquid solvent must include which piece of information?
a. Emergency actions (A)
b. The manufacturer’s mailing address
c. Safe use instructions
d. The weight of the drum
- How does due diligence affect the responsibilities of a gas technician?
a. Due diligence means taking actions that are reasonable in the circumstances and require hard work and persistence
b. Due diligence means working long hours to ensure the work is completed on time
c. Due diligence means taking responsibility for your mistake and taking actions that are reasonable in the circumstances to ensure the mistakes are not repeated
d. Due diligence means taking responsibility for your actions, taking actions that are reasonable in the circumstances and that would be expected from a reasonable person (D)
- What is the best thing to do if a customer becomes unruly or threatening?
a. Make jokes to remove the tension from the situation
b. Seek assistance, and leave if necessary (B)
c. Ignore the behavior
d. Warn them that you are trained in self-defence
- What length should the pipe be cut to be properly sized for the application shown in the image below?
a. 20 Inches
b. 21 Inches (B)
c. 22 Inches
d. 24 Inches
- Which type of pilot burns without turn down throughout the entire time the burner is in service, whether the main burner is firing or not?
a. Intermittent Pilot
b. Continuous Pilot (B)
c. Interrupted Pilot
d. Expanding Pilot
- What is the resistance between points C and E in following figure?
a. 0 Ohms
b. Measurable Resistance
c. Infinity (C)
d. 100 Ohms
- When can plastic piping be used indoors?
a. Never (A)
b. Only when tested prior to concealment
c. Only if it is under 1” (25 mm) in diameter
d. Only with the permission of the local utility of the fuel supplier
- What is the minimum clearance between the front of a swimming pool heater and a combustible material?
a. 36 Inches
b. 18 Inches
c. 24 Inches
d. 48 Inches (D)
- If voltage is constant in a resistive circuit, when current increases, resistance:
a. Increases
b. Remains the same
c. Decreases
d. Fluctuates (D)
- If resistance is constant in a resistive circuit, when voltage surges, current:
a. Increases
b. Remains the same
c. Decreases
d. Fluctuates
- Transformers which produce a secondary voltage which is higher than the Primary are said to be:
a. Auto Transformers
b. Step-Down Transformers
c. Step-Up Transformers (C)
d. Neutral Transformers
- If the parallel circuit has 23 Amps with 5.45 Ohm resistance, what will be the voltage?
a. 122.60 Volts
b. 125.35 Volts (B)
c. 110.00 Volts
d. 115.25 Volts
- Which meter is used to check for continuity?
a. Amp Meter
b. Ohm Meter (B)
c. Potentiometer
d. Volt Meter
- The primary use of a gas meter is?
b. Clock Input
c. Consumption of Gas (C)
d. Leak Test
- Equipment specification indicate mainly:
a. Dimension required to install the appliance, weight of the equipment, electrical characteristics, size location of the vent outlet, piping inlet size, model number (A)
b. Size of building required to accommodate the equipment, parts list, weight of equipment, installation clearances, piping outlet size, serial number
c. Address of installation, required appliance output, electrical characteristics, weight of equipment, branch piping size, model number
d. Physical dimensions required to install the appliance, weight of the equipment, amount of fuel consumed, CO content of the fuel consumed, electrical characteristics, size of location of the vent outlet
- Spillage of flue gases at the appliance draft diverter would indicate that?
a. An updraft condition is present
b. The venting system of the appliance is restricted or block (B)
c. Low gas pressure to the appliance pilot valve
d. There is excessive draft in the venting
- What does a heat anticipator do?
a. Acts as a high limit backup
b. Shuts the burner down if oil flow is lost
c. Determines the length of the burner “on” cycle (C)
d. Shuts the burner down on over temperature
