2015 NATC Scripts

Question 23 None of the door locks function in the lock mode. With the lock button depressed, 12V are supplied to the lock relay. The cause of this problem could be: A. an open ground connection at the unlock relay contacts. B. an open circuit in the LF door lock motor armature. C. an open circuit between the master switch and the lock relay winding. D. a failed fuse connected to the door lock switches. Question 24 While charging a battery at a high rate of current too fast charge the battery, Technician A connects a voltmeter across the battery to make sure the voltage does not exceed 15.5 volts. Technician B monitors the battery's temperature and is prepared to reduce the charging rate when the temperature approaches 125° F. Who is right?

A. A only B. B only

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

2015 National Automotive Technology Competition Script 28