Which laboratory equipment item would be used to avoid breathing in fumes from a substance?
Fume Hoods
Fume Hoods. One of the primary safety devices in a laboratory is a chemical fume hood. A well-designed hood, when properly installed and maintained, can offer a substantial degree of protection to the user, provided that it is used appropriately and its limitations are understood.
What is a fume cupboard used for?
Types of fume cupboard Fume cupboards are used widely in laboratories and are designed to capture and remove air-borne hazardous substances generated during laboratory experiments (e.g. gases, vapours, aerosols and particulates/dust).
What is a bypass fume hood?
Bypass CAV hoods (which are sometimes also referred to as conventional hoods) were developed to overcome the high velocity issues that affect conventional fume hoods. These hood allows air to be pulled through a “bypass” opening from above as the sash closes.
Which apparatus is used in preparation of gases when heating is involved?
Kipp’s apparatus
Kipp’s apparatus, also called Kipp generator, is an apparatus designed for preparation of small volumes of gases.
What is the safest way to smell a substance?
If you need to smell the odor of a chemical, waft or fan the fumes toward your nose with one hand. Do not put your nose over the container and inhale the fumes.
Which apparatus is used to collect gas?
Pneumatic troughs
A pneumatic trough is a piece of laboratory apparatus used for collecting gases, such as hydrogen, oxygen and nitrogen. Pneumatic troughs require a liquid such as water.
What is the preparation method for hydrogen gas?
Hydrogen is produced when granulated zinc is reacted with dilute hydrochloric acid. This is a general procedure for producing hydrogen. Besides, hydrogen can also be prepared by reacting zinc with aqueous alkali.
What’s the best way to expel exhaust gases?
A galvanized pipe is required to expel the exhaust gases directly outside the workshop. The sliding systems differ from the previous ones because the tube-nozzle-reel assembly is movable, that is, it can be shifted from one point to another, thanks to a rail that acts as a channel for the sliding elements.
What are the components of an exhaust gas recirculation system?
The main components of EGR systems are EGR valves and EGR coolers. Exhaust gas recirculation ( EGR) is a NOx emission control technique applicable to a wide range of diesel engines from light-, medium- and heavy-duty diesel engines right up to two-stroke low-speed marine engines.
Which is the best system for exhaust gas extraction?
The stand-alone systems for exhaust gas extraction are the preferred solution by small workshops: they do not require installation, being instead composed of a portable system, easily transportable from one area to another simply by moving it on wheels.
What can be done to reduce diesel exhaust emissions?
Measures to mitigate exposure to diesel engine exhaust emissions include: modifying the engine. installing diesel particulate filters. implementing exhaust gas recirculation. selective non-catalytic reduction. using other fuels, such as dimethyl ether or low sulfur diesel. proper maintenance of the engine and exhaust system.
What kind of equipment is used in firefighting?
Glossary of firefighting equipment. There are two main types of axes used in firefighting, a flathead axe, which has a single wedge for cutting into objects, and a pickhead axe, which has a cutting wedge on one side and a pointed pick on the other.
Which is piece of science equipment holds gas?
A beehive shelf is a term used in chemistry for a piece of laboratory equipment used mostly in school demonstrations to support a gas jar while a gas is being collected over water. Why doesnt the gas on a gas planet escape?
What are the products of combustion in an engine?
During complete combustion, the typical combustion products from engines are carbon dioxide, nitrous oxides, particulates, water vapor, and numerous other contaminants.
What should you do if your diesel engine catches on fire?
Keep the compartment and the engine/genera- tor clean and free of debris to minimize the chances of fire. Wipe up all spilled fuel and engine oil. ■Be aware — diesel fuel will burn. PREVENT BURNS — EXPLOSION ■Follow re-fueling safety instructions. Keep the vessel’s hatches closed when fueling. Open and ventilate cabin after fueling.