Exam Study Questions with 100% Correct
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1. Platform length support limit - ANSWER Each end of a platform 10 feet or
more in length shall not exceed its support more than 30 inches.
2. Maximum hanger spacing for ducts - ANSWER The maximum hanger
spacing for a duct sized less than 48 inches wide and less than 48 inches
high is 5 feet.
3. Safe working load (SWL) - ANSWER A rope with a 20,000-pound capacity
and a safety factor of 4 has a safe working load (SWL) of 5 tons..
4. Slip and drive gauge requirement - ANSWER Slips and drives must not be
less two gage(s) lighter than the duct wall nor below 24 gauge.
5. Sheave diameter strength efficiency - ANSWER A 6-inch sheave diameter
when using a ¾-inch rope will produce a strength efficiency of 86 percent.
6. Commercial kitchen make-up air - ANSWER The amount of commercial
kitchen make-up air supplied to the building from all sources shall be
approximately equal to the amount of exhausted air.
7. Motor mounting styles - ANSWER All of the following are motor mounting
styles except semi rigid.
,8. Shut off valve installation - ANSWER A shut off valve shall be installed on
the fuel oil supply line within reach.
9. Recommended superheat setting for low temperature evaporators -
ANSWER 5 to 8 °F
10.Part of the thermal expansion valve that fastens the valve to the refrigerant
piping - ANSWER valve body
11.Joining method for polyethylene pipe - ANSWER Adhesives and plastic
fittings
12.Temperature-rise ratings for greater efficiency of a dry-type transformer -
ANSWER 150 °F
13.Minimum Annual Fuel Utilization Efficiency (AFUE) for most furnaces -
ANSWER 80 percent
14.Methods of controlling bacteria - ANSWER Encapsulation and
electroporation
15.Minimum space between deep-fat fryer and surface flames - ANSWER 6
inches
16.Halide leak detectors detection capability - ANSWER 1 ounce per year
17.Type of eye splice not commonly used by wire rope manufacturers -
ANSWER A fold back type
, 18.Minimum net exhaust flow rate for medium-duty cooking appliance -
ANSWER 200 cfm per linear foot of hood length
19.Weight of a 22-gauge galvanized steel sheet - ANSWER 1.1562 pounds per
square foot
20.Maximum air infiltration rate for skylights - ANSWER 0.3 cfm/ft2
21.Minimum width of heat seal tape - ANSWER All heat seal tape shall be a
minimum width of 2 inch(es).
22.Ladder rung spacing - ANSWER Rungs of portable ladders and fixed
ladders shall be spaced not less than 12 inches apart.
23.Face velocity for air coolers - ANSWER Random media air coolers are
typically designed so that the wetted pads have a face velocity from 90 to
250 fpm so that the pressure drop remains below 0.1 in wg.
24.Refrigerant system requirement - ANSWER A capture system shall be
provided for all systems containing 55 lbs. or more of refrigerant.
25.Discharge position identification - ANSWER The discharge position is
identified by all except CCWBADD.
26.Grease duct construction thickness - ANSWER Grease ducts shall be
constructed of stainless steel having a minimum thickness of 18 gauge.