Mixtures - Study guides, Class notes & Summaries

It is important that the ____________ __________ read and understand project specifications. - Answer-finisher foreman If the crew can place and finish 100 yd3 of concrete per hour, the producer's delivery rate should be about _____ yd3 per hour. - Answer-100 Concrete is sold by the ton? - Answer-False Delays in discharging concrete trucks can result in the concrete being hard to: - Answer-pump, place, and finish When there is room for two concrete trucks ready to discharge into a pump h...

HCB Test 10 Questions and Answers Rated A+ A small drop such as a particle of moisture discharged from the mouth during coughing, sneezing, or speaking. Droplet A sexually transmitted disease caused by infection with chlamydia Trachomatis. . Transmitted through sexual contact with the penis, vagina, mouth or anus of an infected partner. Chlamydia A poison can do DAMAGE in a variety of ways, what are they ? corrosive or Irritation- Destroying skin and other body tissues Suffocating ...

Chapter 01: Basic Physics for the Respiratory Therapist MULTIPLE CHOICE 1. Power is a measure of which of the following? a. Mechanical energy b. Gravitational potential energy c. The rate at which work is being performed d. The rate at which atoms and molecules move ANS: C Power is a measure of the rate at which work is being performed. The formula P = W/J, where W = watts and 1 watt is equal to 1 J/s, expresses this. Joules are the international standard for expressing energy and work...

A pesticide is defined as.... - CORRECT ANSWER Any chemical used to destroy, prevent, or control any form of life declared to be a 'pest' Pesticide group: Herbicides? - CORRECT ANSWER Weeds Pesticide group: Insecticides? - CORRECT ANSWER Insects Pesticide group: Fungicides? - CORRECT ANSWER Fungi Pesticide group: Miticides (acaricides)? - CORRECT ANSWER Mites, ticks Pesticide group: Repellents - CORRECT ANSWER Insects, vertebrates What two general types of ingredients make up a pesticide...

The term "scientific method of fire investigation" means: -Answer use scientific logic. ________ is the most critical component of ordinary fires, because it is essential for combustion. -Answer Oxygen To understand chemical combinations, it should be understood that every atom consists of a central core of subatomic particles called ________ and ________. -Answer protons; neutrons An example of an element is: -Answer All of these. The chemistry of carbon-containing compounds i...

How big are DOT labels? - 4-inch square, on point Where is the primary DOT label? - On the left How many hazards can be on a DOT label? - several NFPA 704 - Hazardous Materials Marking System Placard: Blue means..... - Health Hazard Placard: Red means.... - Flammability Hazard Placard: Yellow means.... - Instability Placard: White means...... - Special Hazards 5 Special Hazards - (1) Combustable Dust Fibers (2) Spraying/painting dip tanks (3) Compressed Gasses (4)Welding and ...

HVAC: EPA 608 Certification Study Guide Questions and Answers | Latest Version | 2024/2025 | Rated A+ Are there alternative refrigerants that can be directly used in systems originally designed for R- 12? Why or why not? No, because these new refrigerants are not compatible with the lubricants and oils used in R- 12 systems. Explanation: The oils and lubricants in R-12 systems cannot properly interact with newer refrigerants, making direct replacements unfeasible. What type of o...

Chapter 1: Elements & Compounds Introduction 1. Which of the following correctly describes one of the differences between compounds and mixtures? (a) Compounds contain more than one element but mixtures do not. (b) Compounds have a constant composition but mixtures do not. (c) It is easier to separate the elements in a compound than it is to separate the elements in a mixture. (d) All of these statements are true. (e) None of these statements are true. Answer: (b) 2. Which of the foll...

CSIA C-DET Latest 2024 Already Passed Appliance Eqipment, usually built in standardized sizes or types, installed or connected as a unit Approved Acceptable to the authority having jurisdiction. American society for testing materials ASTM Authority having Jurisdiction The organization, office or individual responsible for approving equipment, installations or procedures Baffle Object placed in an appliance to change the direction, extend the path, or slow the flow of air, air-f...

AASHTO R-66 Definition - Liquid asphalt MATERIALs include Asphalt Binder/Asphalt Cement and Asphalt Emulsion AASHTO R-97 Definition - Asphalt MIXTURES include concrete or Hot Mix Asphalt (HMA) Asphalt Binder - -Asphalt cement -High viscosity at ambient temperatures -Upon heating, becomes liquid and can be mixed with aggregates to produce HOT MIX ASPHALT (HMA) Emulsified Asphalt - -Mixture of Asphalt Binder, water, and emulsifying agent. -Liquid at ambient temperature -Primarily diluted a...