Question: Conceptually, a hydraulic motor should be interchangeable with a hydraulic pump because it performs the opposite function - similar to the way a DC electric motor is theoretically interchangeable with a DC electrical generator. However, most hydraulic pumps cannot be used as hydraulic motors because they cannot be backdriven. Also, a hydraulic motor is usually designed for working pressure at both sides of the motor. can a hydraulic pump be used as a hydraulic motor

Answer: no

Question: It is a felony to assault or kill a federal law enforcement animal, and it is a crime in most states to assault or kill a police animal. Yet despite common belief , police dogs are not treated as police officers for the purpose of the law, and attacking a police dog is not punishable in the same manner as attacking a police officer. Though many police departments formally swear dogs in as police officers, this swearing-in is purely honorary, and carries no legal significance. are police dogs considered officers of the law

Answer: no

Question: A simple staining method for bacteria that is usually successful, even when the ''positive staining'' methods detailed below fail, is to use a negative stain. This can be achieved by smearing the sample onto the slide and then applying nigrosin (a black synthetic dye) or India ink (an aqueous suspension of carbon particles). After drying, the microorganisms may be viewed in bright field microscopy as lighter inclusions well-contrasted against the dark environment surrounding them. Note: negative staining is a mild technique that may not destroy the microorganisms, and is therefore unsuitable for studying pathogens. could any dye available in the microbiology lab be used in place of nigrosin for negative staining

Answer:
no