What is the difference between static and dynamic load?

Static load is constant and unchanging, while dynamic load varies over time.

Static load refers to a moving force, while dynamic load is a stationary force.

Static load is only applied vertically, while dynamic load is applied horizontally.

Static load occurs in liquid systems, while dynamic load occurs in solid systems.

When a beam is bent, what happens to its surfaces?

One surface is in tension, and the other is in compression.

Both surfaces experience compression.

Both surfaces experience tension.

Both surfaces remain unaffected.

What can be done to prevent this frame from moving?

Remove the bottom part of the frame.

What can be done to prevent buckling?

Increase the cross-sectional areas

Changing the material of the strut

Class 1 and Class 2 levers has mechanical advantage while Class 3 levers do not provide mechanical advantage. Why is that?

Class 3 levers have longer distance between load and fulcrum compared to effort and load.

Class 3 levers are more efficient than Class 1 and Class 2 levers.

Class 3 levers can lift heavier loads with less effort than Class 1 and Class 2.

Class 3 levers provide mechanical advantage by using less input force.

What are linkages in mechanism?

Linkages are the components that connect and transmit motion between different parts of a mechanism.

Linkages are the fixed parts that do not move in a mechanism.

Linkages are used solely for aesthetic purposes in design.

Linkages are the main power source of a mechanism.

How do we increase the mechanical advantage of pulley system?

Add more pulleys to the system.

Increase the length of the rope.

Decrease the weight being lifted.

Which of the following is a reciprocating motion?

The motion of a piston in an engine.

The rotation of a wheel in a bicycle.

The swinging of a pendulum in a clock.

The linear movement of a train on tracks.

What is the purpose of cam?

The purpose of a cam is to convert rotational motion into reciprocating motion or to control timing in mechanical systems.

To increase the speed of a motor

To measure temperature in engines

Which of the following best describes bevel gears?

Bevel gears are conical gears used to connect shafts at an angle.

Bevel gears are used to connect parallel shafts.

Bevel gears are flat gears that operate in a straight line.

Bevel gears are cylindrical gears designed for high-speed applications.

What is the purpose for lubricating gears?

To reduce friction and wear, prevent overheating, and ensure smooth operation.

To create noise for alerting users

To make gears heavier for stability

To increase friction for better grip

What is the difference between Alternating Current and Direct Current?

AC changes direction; DC flows in one direction.

DC can change direction like AC.

AC is used in batteries while DC is used in power lines.

Voltage is the electric potential difference that causes current to flow.

Voltage is the measure of electrical resistance.

Voltage is the speed at which electricity travels.

Voltage is the amount of energy stored in a battery.

What is Current (Ampere)?

Current (Ampere) is the flow of electric charge.

Current (Ampere) is a measure of voltage.

Current (Ampere) is the resistance of a circuit.

Current (Ampere) is the speed of electrons in a wire.

A resistor is a component that resists the flow of electric current.

A resistor is a device that amplifies electrical signals.

A resistor is a type of battery used to store energy.

A resistor is a component that increases the flow of electric current.

Which of the following best describes capacitors?

Capacitors store electrical energy.

Capacitors convert electrical energy into heat.

Capacitors are used to generate electrical energy.

Capacitors only work with direct current (DC).

What is the purpose to use series circuit?

To provide a single path for current flow.

To allow for independent operation of each component.

To create multiple paths for current flow.

To increase the overall resistance in a circuit.

What is the purpose for parallel circuit?

The purpose of a parallel circuit is to provide multiple pathways for current, ensuring reliability and consistent voltage.

To limit the flow of current to a single pathway.

To increase the overall resistance in a circuit.

To ensure that all components receive the same amount of current.

If there are two batteries, both with 1.5 volts, how should we connect the batteries so we can have 3 volts?

Connect the batteries in series.

Connect the batteries in parallel.

Connect the batteries with opposite polarities.

What is the purpose of switches?

The purpose of button switches is to control electrical circuits.

To measure the temperature of electrical components.

To increase the voltage in electrical circuits.

To provide a decorative element in devices.

DT Systems and Control IGCSE Recap Quiz

50 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a system?

Consist of individual member (parts) that are separated in pieces.

Consist of individual member (parts) that are connected together to form a structure.

A software to run on a computer

A building

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the characteristics of Mass Structure?

Made by connecting individual parts (members).

Rely on the weight of material for strength and support

Create space and protect things inside the structure.

Often made of thin materials such as sheet steel.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the characteristic of Framed Structure?

Made by connecting individual parts (members).

Rely on the weight of material for strength and support

Create space and protect things inside the structure.

Often made of thin materials such as sheet steel.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the characteristic of Shell Structure?

Made by connecting individual parts (members).

Rely on the weight of material for strength and support

Create space and protect things inside the structure.

Use a framework structure to provide a skeleton for the building

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of a truss in construction?

To provide aesthetic appeal to a structure.

To support loads and distribute forces efficiently.

To act as a decorative element in architecture.

To reduce the overall weight of the structure.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main structure type in this image?

Mass Structure

Frame Structure

Shell Structure

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main structure type in this image?

Mass Structure

Frame Structure

Shell Structure

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DT Systems and Control IGCSE Recap

What is a system?

What is the characteristics of Mass Structure?

What is the characteristic of Framed Structure?

What is the characteristic of Shell Structure?

What is the purpose of a truss in construction?

What is the main structure type in this image?

What is the main structure type in this image?

What is the main structure type in this image?

What is the name of this beam?

What is the name of this beam?

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