The strength of concrete depends on the _____.
a. percentage of sand in the mix
b. water-cement ratio
c. type of cement used
d. mixing time
Answer: B
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Technician A says that temperature sensors decrease in resistance as the temperature increases; this is called positive temperature coefficient (PTC). Technician B says that some vehicle manufacturers use a stepped ECT circuit inside the PCM to broaden the accuracy of the sensor. Who is right?
A) Technician B only B) Neither technician A nor B C) Technician A only D) Both technicians A and B
The important difference between Basic 911 and Enhanced 911 is that:
A. enhanced systems have the capability to provide the caller's telephone number and address. B. enhanced systems are used only in rural areas. C. basic systems are more reliable than enhanced. D. basic systems have the capability to provide the caller's telephone number and address.
In an operations role, a process technician may be required to perform the following maintenance activities (select all that apply):
a. Lubricate equipment b. Replace a unit compressor c. Monitor and analyze equipment performance d. Change or clean filters
A defective brake switch could prevent proper operation of the ________
A) Shift interlock B) ABS brakes C) Cruise control D) All of the above