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100

What type of capacitor is a CBB60?

Run

100
  • Why do you use a vacuum pump on an air conditioning unit?

  • A. To remove the Freon
  • B. To remove impurities
  • C. To remove the oil
  • D. All of the above
  • B. To remove impurities
100

On a 460v circuit, measuring from one hot leg to ground, what is the usual voltage?

277V

100

True or false, all 6202 bearings have the same id?

 False

100

A single burner on a range will not come on. How do you check to see what is wrong?

  • A. Ohm out the burner that is not coming on
  • B. Replace the burner
  • C. Replace the thermostat
  • D. Reset circuit breaker

A. Ohm out the burner that is not coming on

200

What type of capacitor is a CBB65?

Run

200

When was R22 refrigerant officially banned?

2010

200

True or False

It is permissible to replace a breaker with one of higher amperage rating if the original trips regularly.

False- Breaker must be replaced with one of the same amperage

200

What is the top width of a 5v belt?

5/8"

200
  • The pilot light on a standing pilot water heater won't stay lit. What might be causing the problem?

  • A. The ignitor
  • B. The thermocouple
  • C. The thermostat
  • D. None of the above
  • B. The thermocouple
300

What year was Grainger founded?

1927

300

What outside temperature classifies Heat and AC as an emergency?

Heat- below 65

AC- above 85

300

What is the purpose of a 3-way switch?


A. Allows you to control a switch from three (3) locations

B. Allows you to control a switch from one (1) location

C. Allows you to control a switch from two (2) locations

D. None of the above

C. Allows you to control a switch from two (2) locations

300

What is the largest inlet connection option for Graingers' Pneumatic Vibrators?

1"

300
  • As the hot water heater tank is being filled up, you should:

  • A. Clean it up
  • B. Flush the toilet
  • C. Purge the tank of air
  • D. None of the above
  • C. Purge the tank of air
400

What year did Grainger stock become publicly traded?

1967

400

True or false, R-410A is in the process of being phased out and replaced by R32 refrigerant? 

True

400

What is the difference between ohms and amps?

Ohms= resistance

Amps= Current

400

What is the purpose of a backflow preventer?

To prevent water from flowing backwards in plumbing system.

400

What would cause soap bubbles to run out of the dishwasher when it is running?

  • A. The drain is clogged
  • B. The resident used hand dishwashing soap instead of automatic dishwashing soap
  • C. The dishwasher is too full
  • D. All of the above
  • B. The resident used hand dishwashing soap instead of automatic dishwashing soap
500

True or false, if you need a 600 mfd start cap thats currently unavailable, you could use a 630-750mfd

True

500

How can you test a compressor to determine if it is faulty?

Using multi-meter, check for continuity across all 3 terminals

500

What size wiring is used on a 15amp circuit?

14 guage

500

What is the best way to remove heavy grease clogs from main drain.

Use jetter machine cleaner

500

What should be checked/replaced if the compressor in refrigerator does not run

Start and relay switch

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