A ladder ____ is used to lower a rescuer into a trench or manhole.
a. gin
b. tripod
c. frame
d. anchor
Answer: a. gin
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Which of the following instruments is designed to measure rotational speed?
A. dial bore gauge B. dial indicator C. load rotor D. tachometer
Stored oxygen and fuel gas cylinders ____.
A. can be stored separately or together B. must be separated by 20 feet C. must be separated by a 20 ft. high wall D. must be separated by 5 feet
Wilson Partners manufactures thermocouples for remote temperature monitoring of electronics applications. The current system has a fixed cost of $400,000 per year and a variable cost of $10 per unit. Wilson sells the units for $14 each. A newly proposed system will add on-board features that allow the revenue to increase to $16 per unit, but the fixed cost will now be $600,000 per year. The variable cost of the new system will be based on a $48 per hour rate with 0.2 hour dedicated to produce each unit. Determine the annual breakeven quantity for the (a) current system, and (b) proposed system.
What will be an ideal response?
Which type of duct should NOT be allowed to pass through fire-rated walls?
A) Ductboard B) Flexible duct C) Galvanized sheet metal duct D) Flexible duct connector