Question 1

What are detail drawings used for in HVAC drafting?

Accepted Answer

. Detail drawings are used to clarify specific features of the HVAC plan, showing enlarged views of equipment, installations, duct components, or any feature not defined on the plan.

Question 2

Describe the basic function of a heat pump system. PaTTern deVeloPmenT ProblemS

Accepted Answer

Heat is extracted from the outside air and pumped into the structure during the heating cycle; heat is extracted from the inside air and pumped outside during the cooling cycle.

Question 3

Name two types of HVAC plans (based on line technique).

Accepted Answer

. Single line, double line

Question 4

Define truncated.

Accepted Answer

A sheet metal part, such as a

Question 5

Name two types of hot water systems.

Accepted Answer

One-pipe s

Question 6

Describe HVAC schedules and their importance.

Accepted Answer

. HVAC schedules are charts co

Question 7

Name and sketch four types of seams.

Accepted Answer

The answer of Name and sketch four types of seams....

Question 8

Define thermostat.

Accepted Answer

A thermostat is an automatic m

Question 9

Name two types of forced-air systems.

Accepted Answer

Central fo

Question 10

Identify six sources of pollutants in a structure.

Accepted Answer

. Moisture, indoor combustion,

Question 11

Describe the basic function of an air-to-air heat exchanger.

Accepted Answer

. An air-to-air heat exchanger is a heat

Question 12

When are pictorial drawings used in HVAC drafting? 59728_ch23_EOC_ptg01.indd 1 03/02/16 10:38 am

Accepted Answer

. A pictorial drawing assists

Question 13

List three factors that contribute to the proper placement of a thermostat.

Accepted Answer

. A thermostat should be placed near the

Question 14

Describe the basic principle of pattern development.

Accepted Answer

. Laying out geometr

Question 15

How are schedules keyed to the HVAC plan? Part 2: Pattern Development

Accepted Answer

. Schedules are keyed to the H

Question 16

What are section drawings used for in HVAC drafting?

Accepted Answer

. Section drawings are used to

Question 17

Briefl y describe how sheet metal patterns can be created on a CADD system and have the information transferred to a flat pattern or directly to manufacturing.

Accepted Answer

. Sheet metal patterns created using CAD

Question 18

Define duct.

Accepted Answer

Generally, a duct is a sheet m

Question 19

HVAC systems are also commonly known as ____ systems.

Accepted Answer

The answer of HVAC systems are also commonly known as...

Question 20

Name and sketch three types of hemmed edges.

Accepted Answer

The answer of Name and sketch three types of hemmed...

Exam 23: Heating, Ventilating, and Air-Conditioning Hvac, and Pattern Development

What are detail drawings used for in HVAC drafting?

Describe the basic function of a heat pump system. PaTTern deVeloPmenT ProblemS

Name two types of HVAC plans (based on line technique).

Define truncated.

Name two types of hot water systems.

Describe HVAC schedules and their importance.

Name and sketch four types of seams.

Define thermostat.

Name two types of forced-air systems.

Identify six sources of pollutants in a structure.

Describe the basic function of an air-to-air heat exchanger.

When are pictorial drawings used in HVAC drafting? 59728_ch23_EOC_ptg01.indd 1 03/02/16 10:38 am

List three factors that contribute to the proper placement of a thermostat.

Describe the basic principle of pattern development.

How are schedules keyed to the HVAC plan? Part 2: Pattern Development

What are section drawings used for in HVAC drafting?

Briefl y describe how sheet metal patterns can be created on a CADD system and have the information transferred to a flat pattern or directly to manufacturing.

Define duct.

HVAC systems are also commonly known as ____ systems.

Name and sketch three types of hemmed edges.

Introduction to Engineering Drawing and Design Test

Drafting Equipment, Media, and Reproduction Methods

Computer-Aided Design and Drafting Cadd

Manufacturing Materials and Processes

Sketching Applications

Lines and Lettering

Drafting Geometry

Multiviews

Auxiliary Views

Dimensioning

Fasteners and

Sections, Revolutions, and Conventional Breaks

Geometric Dimensioning and Tolerancing

Pictorial Drawings and Technical Illustrations

Working Drawings

Mechanisms: Linkages, Cams, Gears, and Bearings

Belt and Chain Drives

Welding Processes and Representations

Precision Sheet Metal Drafting

Electrical and Electronic Drafting

Industrial Process Piping

Structural Drafting

Civil Drafting Problems

Filters