Technician A says that a frozen relay valve supplying the tractor drive axle brakes can cause the brakes not to release. Technician B says that a frozen relay valve can cause service brakes not to apply. Who is correct?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B
Answer: C
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When should breathing protection be used with heat exchangers?
a. During normal operations b. During abnormal events c. When toxic gases may be present d. At all times
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Explain the concept of commensalism
What will be an ideal response?
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____ are considered nuisance pests indoors. Besides leaving small, black fecal deposits, they are able
to fly about, thus distracting plantscape clients and their guests.
a. Thrips c. White flies b. Shore flies d. Fungus gnats
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If the motor is running and the shunt field opens, the motor will become a(n) ____________________ motor and begin to increase rapidly in speed.
Fill in the blank(s) with the appropriate word(s).
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