1) Which of the following is NOT a criterion for selecting laboratory goggles? goggles must enclose the eye area goggles must be impact resistant goggles should be softer than glasses goggles must be chemical resistant
2) Protective clothing and equipment, such as gloves and lab coats, should be removed before leaving the laboratory because: visitors may be frightened by the strange clothing contaminants may be transferred to persons or objects outside the lab one may forget to return the gear to the lab they are NSCC property
3) Non-disposable gloves should be washed with soap and water: at the end of each working day once a week before removing them before putting them on
4) Shorts are not permitted in laboratories because: they are too informal they provide no protection against spills one may need to kneel on the floor they don't have deep pockets
5) Which of the following is NOT found on an MSDS? the CAS Registry number OSHA PELs advice on cleaning up spills a structural formula
6) Which pair of chemicals may NOT be stored together? nitric acid and formic acid sodium chloride and magnesium sulfate copper metal and zinc metal ethanol and acetone
7) The flash point of a substance is: the lowest temperature at which it will evaporate the temperature at which it will spontaneously burst into flames the highest temperature that can be obtained by burning it the lowest temperature at which it's vapors will ignite in air
8) Which of the following does NOT apply to hazardous wastes stored in the hood? they must be clearly labeled the containers must be placed in a tub or tray the containers must be left open the hood must be labeled for storage only
9) A student in a teaching lab spills a small amount of a corrosive substance on her hand. The instructor should: send her in search of the Chemical Safety Officer flush the affected area with large amounts of cold water apply burn ointment and a bandage neutralize with sodium bicarbonate
10) Almost NO chemical spill is an emergency if: it is an aqueous solution and a floor drain is nearby the substance spilled is not flammable the person causing it or finding it is calm, knowledgeable and can locate proper cleanup equipment the person causing it or finding can avoid responsibility
11) While working up an experiment, you drop a 250ml bottle of ammonium hydroxide solution on the floor. Which fo the following is NOT an acceptable course of action? locate the laboratory spill kit, put on PPE, and clean up the spill lock the lab door and look for the Chemical Safety Officer to get help call campus security @ 3636 and report an ammonium hydroxide spill borrow a mop and bucket from the janitor and mop up the spill
12) Which of the following is NOT a part of the Standard Operating Procedures (SOP) for a laboratory procedure? an estimate of the yield of the reaction crieria for deciding upon proper PPE consulting the MSDS for any unfamiliar materials identification for special measures in case of spill
13) Which one of the following items is permitted to be stored in a laboratory? your lunch, provided it is in a plastic bag any non-alcoholic beverage tea bags or instant coffee none of the above
14) An HMIS label rating of '3' in the health category means: expect to be over it by lunch time Toxic, avoid inhalation or skin contact Explosive at room temperature May ignite if heated
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