Electrical Circuits and Inductors Quiz

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Questions and Answers

What type of energy is converted to electrical energy in a cell?

Nuclear energy

Mechanical energy

Thermal energy

Chemical energy (correct)

What is the composition of an electrolyte in a lead acid cell?

HCL and H2O

HNO3 and H2O

H2SO4 and H2O (correct)

H2O and PbO2

What type of voltage does a battery provide?

Neither AC nor DC Voltage

AC Voltage

DC Voltage (correct)

Both AC and DC Voltage

Which type of cell is a dry cell?

Primary Cell Signup and view all the answers

Which cell is used in a track machine battery?

Lead-Acid Cell Signup and view all the answers

Which gas is produced during the charging of a battery?

H2 Signup and view all the answers

What is the correct order for removing battery connections?

Remove the negative terminal first and then the positive terminal Signup and view all the answers

What happens to the plates of a fully discharged battery?

Both plates are covered with lead sulfate Signup and view all the answers

What is the relationship between the ampere hour capacity of a battery and the number of plates and their size?

The ampere hour capacity is not directly proportional to the number of plates and their size Signup and view all the answers

What does an alternator convert?

Mechanical energy to electrical energy Signup and view all the answers

What can shorten the life of a battery?

Long idle periods in a discharged condition Signup and view all the answers

What is the function of a transformer?

To transfer AC power from one circuit to another Signup and view all the answers

What is the unit of inductance?

Henry Signup and view all the answers

What is the formula for inductive reactance?

XL = 2πfL Signup and view all the answers

What is the phase relationship between voltage and current in an ideal coil?

Voltage leads current by 90° Signup and view all the answers

How does the number of turns of a coil affect its inductance?

Inductance is directly proportional to the number of turns Signup and view all the answers

What is the property of an inductor that opposes a change in current?

Inductance Signup and view all the answers

At what temperature will the engine stop in a CSM machine?

At 950°C Signup and view all the answers

What type of lube oil pressure switch is used in a CSM Engine circuit?

NO type Signup and view all the answers

What is the function of the time delay circuit in a new Duomatic Engine Circuit?

To safe the self starter Signup and view all the answers

How many stopper switches are provided in a CSM Engine Circuit?

7 Signup and view all the answers

What is directly connected to the battery in a CSM Engine Circuit?

Mechanical Recorder Signup and view all the answers

What happens when the emergency stopper switch is ON in a CSM machine?

The engine cannot be started Signup and view all the answers

What type of system controls the Gear Box?

Electrical system Signup and view all the answers

How many solenoids are used for clutch operation in a Z.F. Gear Box?

3 Signup and view all the answers

Which solenoid is common for forward direction in all gears?

M1 Signup and view all the answers

What happens in a Z.F. Gear Box if the break pressure is 3 and more?

Z.F. will Neutral Signup and view all the answers

Which solenoid will be energized when the 2nd gear is selected in reverse direction?

M1 & M4 Signup and view all the answers

What is the function of the lock-up solenoid?

To operate converter clutch Signup and view all the answers

Study Notes

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A cell converts mechanical energy to electrical energy.
A battery gives DC voltage.
Electrolyte is a mixture of H2SO4 and H2O.
The positive terminal of a lead acid cell is PbO2.
A dry cell is a primary cell.
A lead acid cell is a secondary cell.

Primary and Secondary Cells

A primary acid cell is a non-rechargeable cell.
A secondary acid cell is a rechargeable cell.

Battery Characteristics

The unit of battery capacity is ampere-hour.
Distilled water should be used in a battery.
When removing connections from a battery, the negative terminal should be removed first, followed by the positive terminal.
A fully discharged battery's plates do not cover with lead sulfate (PbSO4).
The ampere-hour capacity of a battery is not directly proportional to the number of plates and size of plates.
A battery's life can be shortened by long idle periods in a discharged condition.
When a cell's specific gravity is down to about 1.150, the cell is completely discharged.

Alternator

An alternator converts mechanical energy to electrical energy.
An alternator initially generates AC voltage.

Inductor

An iron core inductor has a coil wound on a ferromagnetic core.
Inductive reactance (XL) is calculated by XL = 2πfL.
A transformer transfers AC power from one circuit to another circuit.
When a coil is short-circuited, an ohm meter reads zero resistance.
A choke with 10H inductance at 100HZ AC has a reactance of 628 Ω.

Inductor Properties

The voltage across an ideal coil leads the current through it by 90°.
Inductor is used in filter circuits and relays.
Alternator works on self-induction.
Inductance of a coil is directly proportional to the number of turns of the coil.
Inductance of a coil is not inversely proportional to the length of the coil.
Inductance is the property of an inductor that opposes the change of current flowing through it.

CSM Engine Circuit

A lube oil pressure switch in a CSM engine circuit is of the NO type.
A bypass switch in a new Duomatic engine circuit is of the NO type.
In a CSM machine, the engine will stop if the temperature is at 950°C or above.
The function of a time delay circuit in a new Duomatic engine circuit is to separate the programmer battery and working light during starting.
The mechanical recorder is directly connected to the battery in a CSM engine circuit.
There are 7 stopper switches provided in a CSM engine circuit.
Hold relay is used in a latch type engine circuit.

Gear Box

Gear box is controlled by a hydraulic system.
There are 4 solenoids for clutch operation in a Z.F. gear box.
The M3 solenoid is common for forward direction in all gears.
If the brake pressure is 3 or more, the Z.F. gear box will neutral.
The M2 and M4 solenoids are energized when the 2nd gear is selected in the reverse direction.
The 5b26 and 11b26 switches in a Z.F. circuit are limit switches.
In a working position, the green LED will glow on the B19 panel in a CSM machine.

Solenoids

The function of a lock-up solenoid is to operate the converter clutch.
The RPM sensing transducer is fitted on the turbine in a Z.F. gear box.
Solenoids are fitted in the shifter assembly of a Z.F. gear box.
The Z.F. pressure fault indicator shows a red indication at less than 12.

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Description

Test your knowledge of electrical circuits, inductors, and transformers with this quiz. Covering topics such as iron core inductors, inductive reactance, and choke coils, this quiz is perfect for electrical engineering students and enthusiasts.