1. definition of Power 230-233 Easy

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Which type of boiler is assembled in a factory and shipped complete with fuel burning equipment, mechanical draft equipment, and automatic controls and accessories?

Field-erected boiler

Mud drum

Packaged watertube boiler (correct)

Shop-assembled boiler

What is the main advantage of a packaged boiler?

Flexible capacity

Low cost (correct)

High efficiency

Compact design

What is the range of capacities for a packaged watertube boiler?

10 000 kg to 100 000 kg of steam per hour

1000 kg to 10 000 kg of steam per hour

2300 kg to over 65 000 kg of steam per hour (correct)

5000 kg to 50 000 kg of steam per hour

What is the operating pressure range for a packaged watertube boiler?

Up to 1700 kPa, although they may reach over 6200 kPa in some cases Signup and view all the answers

What type of fan supplies the air for combustion in a packaged watertube boiler?

Forced draft (FD) fan Signup and view all the answers

What covers the outside of the boiler and furnace in a packaged watertube boiler?

Steel casing Signup and view all the answers

What is included in a packaged watertube boiler to support its bottom?

Simple skid-type steel foundation Signup and view all the answers

Which of the following is a difference between shop-assembled boilers and packaged boilers?

Shop-assembled boilers can be ordered 'off the shelf' Signup and view all the answers

Which of the following is true about field-erected watertube boilers?

They are constructed on-site Signup and view all the answers

Which of the following is a method for calculating the output or rating of a boiler?

All of the above Signup and view all the answers

What is the steam capacity of a boiler expressed in?

Kilograms of steam per hour Signup and view all the answers

What is the main purpose of the refractory and outer casings in a shop-assembled boiler?

To protect the boiler from external damage Signup and view all the answers

What is the purpose of the support structures in a field-erected watertube boiler?

To hang the drums and headers in place Signup and view all the answers

What is the maximum continuous steam output of the field-erected watertube boiler shown in Figure 3?

163 000 kg/h Signup and view all the answers

What fuels can be used in field-erected boilers?

All of the above Signup and view all the answers

Which of the following is true about shop-assembled watertube boilers?

They have water-cooled furnaces and forced draft fans Signup and view all the answers

What is the main purpose of the steel casing in a packaged watertube boiler?

To prevent combustion gas leakage into the boiler room Signup and view all the answers

What is the range of operating pressures for packaged watertube boilers?

Up to 6200 kPa Signup and view all the answers

What is the main advantage of field-erected watertube boilers?

Lower shipping costs Signup and view all the answers

What is the purpose of the support structures in a field-erected watertube boiler?

To provide structural support for the boiler Signup and view all the answers

What is the steam capacity of the shop-assembled boiler shown in Figure 2?

100 000 kg/h Signup and view all the answers

What type of fan supplies the air for combustion in a packaged watertube boiler?

Forced draft (FD) fan Signup and view all the answers

Which of the following is a characteristic of a shop-assembled boiler?

The steam generating section is not fully assembled Signup and view all the answers

What is the main purpose of field-erected boilers?

To be assembled on-site due to their large size Signup and view all the answers

What is the main advantage of a field-erected boiler?

They can be constructed in the manufacturers plant and then shipped to the site for assembly Signup and view all the answers

What is the maximum continuous steam output of the field-erected watertube boiler shown in Figure 3?

163 000 kg/h Signup and view all the answers

What is the purpose of the refractory and outer casings in a shop-assembled boiler?

To provide insulation and cover the outside of the boiler and furnace Signup and view all the answers

What is the purpose of the support structures in a field-erected watertube boiler?

To provide support for the refractory and outer casings Signup and view all the answers

What is the range of capacities for a field-erected watertube boiler?

150 000 kg/h or more Signup and view all the answers

What is the main purpose of the refractory and insulation in a field-erected watertube boiler?

To provide insulation and cover the outside of the boiler and furnace Signup and view all the answers

Which of the following is true about packaged watertube boilers?

They have water-cooled furnaces Signup and view all the answers

What is the purpose of the steel casing in a packaged watertube boiler?

To prevent combustion gas leakage Signup and view all the answers

What is the main advantage of field-erected watertube boilers?

Standard dimensions Signup and view all the answers

What is the purpose of the support structures in a field-erected watertube boiler?

To provide support for the boiler Signup and view all the answers

What is the range of capacities for a shop-assembled watertube boiler?

100 000 kg/h Signup and view all the answers

What is the purpose of the refractory and insulation in a field-erected watertube boiler?

To cool the furnace Signup and view all the answers

What is the range of operating pressures for packaged watertube boilers?

Up to 1700 kPa Signup and view all the answers

Which of the following is true about shop-assembled watertube boilers?

They are generally smaller in size compared to packaged boilers Signup and view all the answers

What is the main advantage of field-erected watertube boilers?

They can be transported to the site in one piece Signup and view all the answers

What is the purpose of the support structures in a field-erected watertube boiler?

To hang the drums and headers in place Signup and view all the answers

What is the range of capacities for a field-erected watertube boiler?

Up to 163 000 kg/h of steam Signup and view all the answers

What is the main purpose of the refractory and outer casings in a shop-assembled boiler?

To provide insulation and protect the boiler components Signup and view all the answers

What is the range of operating pressures for packaged watertube boilers?

Up to 6550 kPa Signup and view all the answers

What is the maximum continuous steam output of the field-erected watertube boiler shown in Figure 3?

163 000 kg/h Signup and view all the answers

What is the main advantage of a packaged boiler?

They can be ordered 'off the shelf' Signup and view all the answers

1. definition of Power 230-233 Easy

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Questions and Answers

Which type of boiler is assembled in a factory and shipped complete with fuel burning equipment, mechanical draft equipment, and automatic controls and accessories?

What is the main advantage of a packaged boiler?

What is the range of capacities for a packaged watertube boiler?

What is the operating pressure range for a packaged watertube boiler?

What type of fan supplies the air for combustion in a packaged watertube boiler?

What covers the outside of the boiler and furnace in a packaged watertube boiler?

What is included in a packaged watertube boiler to support its bottom?

Which of the following is a difference between shop-assembled boilers and packaged boilers?

Which of the following is true about field-erected watertube boilers?

Which of the following is a method for calculating the output or rating of a boiler?

What is the steam capacity of a boiler expressed in?

What is the main purpose of the refractory and outer casings in a shop-assembled boiler?

What is the purpose of the support structures in a field-erected watertube boiler?

What is the maximum continuous steam output of the field-erected watertube boiler shown in Figure 3?

What fuels can be used in field-erected boilers?

Which of the following is true about shop-assembled watertube boilers?

What is the main purpose of the steel casing in a packaged watertube boiler?

What is the range of operating pressures for packaged watertube boilers?

What is the main advantage of field-erected watertube boilers?

What is the purpose of the support structures in a field-erected watertube boiler?

What is the steam capacity of the shop-assembled boiler shown in Figure 2?

What type of fan supplies the air for combustion in a packaged watertube boiler?

Which of the following is a characteristic of a shop-assembled boiler?

What is the main purpose of field-erected boilers?

What is the main advantage of a field-erected boiler?

What is the maximum continuous steam output of the field-erected watertube boiler shown in Figure 3?

What is the purpose of the refractory and outer casings in a shop-assembled boiler?

What is the purpose of the support structures in a field-erected watertube boiler?

What is the range of capacities for a field-erected watertube boiler?

What is the main purpose of the refractory and insulation in a field-erected watertube boiler?

Which of the following is true about packaged watertube boilers?

What is the purpose of the steel casing in a packaged watertube boiler?

What is the main advantage of field-erected watertube boilers?

What is the purpose of the support structures in a field-erected watertube boiler?

What is the range of capacities for a shop-assembled watertube boiler?

What is the purpose of the refractory and insulation in a field-erected watertube boiler?

What is the range of operating pressures for packaged watertube boilers?

Which of the following is true about shop-assembled watertube boilers?

What is the main advantage of field-erected watertube boilers?

What is the purpose of the support structures in a field-erected watertube boiler?

What is the range of capacities for a field-erected watertube boiler?

What is the main purpose of the refractory and outer casings in a shop-assembled boiler?

What is the range of operating pressures for packaged watertube boilers?

What is the maximum continuous steam output of the field-erected watertube boiler shown in Figure 3?

What is the main advantage of a packaged boiler?

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