Free Printable Block IV Study Guide

Worksheets

Block IV Study Guide

Total questions: 20

Worksheet time: 10mins

Name

Class

Date

How is the state of charge of a lead-acid battery indicated?

By measuring the specific gravity of the electrolyte or checking the voltage with a voltmeter.

By listening to the sound the battery makes

By shaking the battery

By counting the number of cells in the battery

How can the direction of the lines of force be determined when the direction of current flow is known?

Use the foot rule

Use the middle finger rule

Use the left-hand rule

The law of electromagnetic induction states that "the induced electromotive force (emf) in a closed loop of wire is"

not affected by the rate of change of magnetic flux through the loop

directly proportional to the rate of change of magnetic flux through a coil of wire

inversely proportional to the rate of change of magnetic flux through the loop

dependent on the resistance of the wire in the loop

Root Mean Square is also known as?

Effective value

Volts

Volt/Amps

Resistor that varies current?

Constant resistor

Rheostat

Stable resistor

Unchanging resistor

What are the two general types of AC motors commonly used in aircraft systems?

Induction motors and synchronous motors

Single-phase motors and three-phase motors

Brushless motors and brushed motors

Direct current motors and stepper motors

Conventional Flow theory?

Current flows from the negative terminal to the positive terminal in Conventional Flow theory.

Current flows from the positive terminal to the negative terminal in Conventional Flow theory.

Zener diode?

Zener diode is used for amplification purposes

Zener diode only allows current to flow in one direction

Zener diode is a type of diode that allows current to flow in both forward and reverse directions when a certain voltage threshold is reached.

Zener diode is a type of resistor

8 µF capacitor is expressed?

.008

.00008

.000008

800,000

10.

Gains are basic functionality of all _____?

Conductors

Amplifiers

Logic Gates

11.

Formula for Power?

Power = Work x Time

Power = Energy / Time

Power = Force x Distance / Time

Power = Mass/Elevation

12.

What is the reason of the constant flow of current in the same direction through the external circuit in a DC generator

Commutator

Field winding

Slip rings

Armature winding

13.

A Rectifier?

Converts alternating current (AC) to direct current (DC)

Converts direct current (DC) to alternating current (AC)

14.

How many footpounds is One Horsepower?

450

500

600

550

15.

3 components of impedance?

Resistance, inductance, capacitance

Resistance, conductance, susceptance

Apparent Power, resistance, true power

16.

Doping N-type semiconductor material with elements such as phosphorus, arsenic, and antimony causes it to have?

Decreased conductivity

Reduced resistance

Excess electron

Enhanced durability

17.

Out of the series, shut, or compound motors, which one is suitable for constant speed?

Shunt motors

Series motors

Compound motors

18.

GCU is the accronym for what in regards to a generator?

Generator Control Unit

Generator Cruising Module

19.

Electrostatic Field defined?

Force field that surrounds electrically charged body

A type of sound wave

A type of gravitational field

A type of magnetic field

20.

ESD is an acronym to what pertaining to aircraft?

Enhanced Safety Device

Electronic System Design

Emergency Shutdown

Electrostatic Discharge

Reset

Block IV Study Guide

Total questions: 20

Worksheet time: 10mins

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