Take ASE S6 Electrical Electronic Systems (School Bus) Practice Questions - ASE S6 - Electrical Electronic Systems (School Bus) Certification Exam

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ASE S6 Electrical Electronic Systems (School Bus) Practice Questions - ASE S6 - Electrical Electronic Systems (School Bus) Certification ExamPractice mode

Question 1 of 25

QUESTION 1 / 25

A school bus blower motor circuit reads 12.6V at the battery but only 10.2V at the motor with the motor running. What does this indicate?

Choose one answer below.

AA 2.4V voltage drop somewhere in the circuit✓BA normal reading for a blower motor✓CAn open circuit between battery and motor✓DA short to ground at the motor✓

0 of 25 answered

A school bus blower motor circuit reads 12.6V at the battery but only 10.2V at the motor with the motor running. What does this indicate?

Using Ohm's law, what current flows through a 6-ohm school bus dome lamp connected to a 12V source?

Tech A says a digital multimeter set to DC volts should be connected in parallel with the component being tested. Tech B says an ammeter is connected in series. Who is correct?

What is the maximum allowable voltage drop on a typical school bus 12V starter ground cable during cranking?

A wiring diagram shows a circuit with two 4-ohm resistors in series across 12V. What is the total current?

Two 6-ohm bulbs are wired in parallel on a 12V circuit. What is the total circuit current?

When using a clamp-type DC ammeter to measure starter draw on a school bus, the clamp should be placed around:

An ohmmeter reads OL (infinite) when connected across a school bus relay coil that should measure about 80 ohms. This indicates:

A school bus circuit blows its fuse immediately every time it is replaced and the switch is on. The most likely cause is:

What does a wiring diagram symbol of a zigzag line typically represent?

A technician finds 0V on both sides of a closed switch in an energized circuit using a voltmeter referenced to ground. The switch is:

Power equals voltage times current. A school bus accessory draws 5 A at 12V. What is its power consumption?

Tech A says insulated (positive) side voltage-drop testing should be done with the circuit loaded and operating. Tech B says zero current must flow to get an accurate voltage-drop reading. Who is correct?

A heavy-duty school bus uses two 12V batteries connected in parallel. The resulting system voltage and capacity are:

During a battery open-circuit voltage test, a fully charged 12V lead-acid battery should read approximately:

When load testing a school bus battery, the carbon-pile or electronic load is typically applied at:

A 12V battery under a proper load test holds 9.6V at 70 degrees F. The battery is:

A battery hydrometer measures specific gravity to determine:

Tech A says corroded battery terminals can cause hard starting. Tech B says a parasitic (key-off) drain can discharge a school bus battery overnight. Who is correct?

To measure parasitic draw on a parked school bus, a technician should connect the ammeter:

White, crusty buildup on a school bus battery terminal is most commonly:

A school bus park/clearance lamp circuit shares a single fuse with the side marker lamps. If that fuse opens, the result is:

A battery conductance tester reports a battery is good but at a low state of charge. The correct next step is to:

A school bus equipped with a battery master disconnect switch will not crank in any gear. The disconnect is in the main negative path. The technician should first verify:

A school bus engine cranks slowly. Battery is fully charged and passes a load test. The next logical test is: