Valve springs are being discussed. Technician A says you should discard a 2" spring that is 1/16" out of square. Technician B says out-of-square springs can cause uneven valve guide wear. Who is correct?

A. Technician A
B. Technician B
C. Both technicians
D. Neither technician


Answer: B

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Is it possible to find a precise location inside a building or a room where GPS will not work? Explain.

What will be an ideal response?

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Which of the following statements is true about commissioning? Select all that apply.

A) Systems such as security and alarm require light commissioning because they can be adjusted after occupancy when operating parameters are known. B) If ongoing maintenance is outsourced, there is no need for the owner to receive training or operating and maintenance documentation. C) Commissioning is essential to test only normal operations. D) A shortened commissioning process might be quite satisfactory for a small commercial building with simple heating and cooling equipment.

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A public utility in a medium-size city is consider­ing two cash rebate programs to achieve water con­servation. Program 1, which is expected to cost an average of $60 per household, provides a rebate of 75% of the purchase and installation costs of an ultra-low-flush toilet ($100 max). This program is projected to achieve a 5% reduction in overall household water use over a 5-year evaluation pe­riod. This will benefit the citizenry to the extent of $1.25 per household per month. Program 2 in­volves turf replacement with xeric (low water need) landscaping. The program is expected to cost $500 per household, but it will result in re­duced water cost estimated at $8 per household per month (on the average). Use the B/C method at a discount rate of 0.5% per month to determine which

program, if any, the utility should under­take. The programs may be (a) mutually exclusive, or (b) independent. What will be an ideal response?

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Technician A says that cast spoke wheels for heavy duty trucks are cast with 3, 4, or 6 spokes. Technician B says that a cast spoke wheel with 6 spokes is most likely to be found on a heavily loaded front axle. Who is correct?

A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B

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