ASE Test 2: & Answers

ASE Test 2: & Answers
Which of the following would be the correct tool to bench test a highpressure common-rail injector?
A. Digital multi-meter (DMM)
B. Test Light
C. Fused Jumper wire
D. Voltmeter
(Ans- A. Digital multi-meter (DMM) (A DMM set on the Ohms scale can
be used to measure the resistance of the coil)
A diesel engine fails to reach operating temperature. Which of the
following is the most likely cause?
A. Stuck open thermostat
B. Stuck closed thermostat
C. Slipping fan drive belt
D. Slipping fan clutch
(Ans- A. Stuck open thermostat ( A stuck open thermostat would tend
to let the engine run cold)