Vacuum tubes - Study guides, Class notes & Summaries

First computers Correct Answer-Mechanical calculators- Perform simple additions and subtractions, operations performed on a crank, numbers stored on a rotor - mechanical switches: Konrad Zuse's Z1, electronically controlled, program was on a punch tape fed into the computer, had to be sequential, and manual. Z3 turned to eletronical, but otherwise still similar to Z1 - vacuum tubes used for logic circuitry - limited CPU and memory - very large and expensive - Most were very heavy, ran...

Phlebotomy 2 Exam Questions With Correct Answers Latest 2024/2025 (100% Correct) A patient may bend their elbow after a venipuncture is performed. - ANSWER false EDTA is a strong _______. Antibody Coagulant Antigen Anti-coagulant - ANSWER anti-coagulant A non-additive serum tube must be drawn ________ any additive tube collection because the blood needs to _______ for the specific test required. - ANSWER before,, coagulation Hitting a nerve during a procedure is an example of: - ANSWER m...

ATT Week 8 Exam| Answered 100% Correctly What Was The First Computer Ever Made? The Eniac When Was The Eniac Built? 1940 What Was The Eniac Mostly Comprised Of? Vacuum Tubes What Replaced Vacuum Tubes? Transistors What Replaced Transistors IC Chips IC Chips Are Made From Silicon Each Leg On An IC Chip Preforms A Different Logic Function What Does The Notch Indicate On An IC Chip The 1st Or Reference Point Of The Pins How Many Outputs Do IC Chips Have

A patient may bend their elbow after a venipuncture is performed. - ANSWER false EDTA is a strong _______. Antibody Coagulant Antigen Anti-coagulant - ANSWER anti-coagulant A non-additive serum tube must be drawn ________ any additive tube collection because the blood needs to _______ for the specific test required. - ANSWER before,, coagulation Hitting a nerve during a procedure is an example of: - ANSWER male practice The dermal subcutaneous junction is located ____ mm into the tissue...

What advantages do computers have over humans? - Answer Faster, more accurate, better memory Many so-called computer errors are caused by: - Answer sloppy data entry How does Morse Code work? - Answer It uses short and long signals, representing dots and dashes How does the binary system used by a computer work? - Answer It uses 1s and 0s, representing electrical current that is on or off Which of the following describes ASCII? - Answer It uses 1 byte to store a charac...

Hartman Phlebotomy Practice Exam 150 Questions with 100% Correct Answers | Verified | Latest Update 2024.1. 76. Which of these tasks is typically considered within a phlebotomy technician's scope of practice? (Choose three.) (A) Creating peripheral blood smear slides (B) Drawing blood from an indwelling port (C) Performing a throat culture (D) Drawing blood from the dorsal aspect of the hand using a syringe and transfer device (E) Using a microscope to examine blood smears ANS (A) Creatin...

What is gauge pressure plus atmospheric pressure? Correct Answer: Pounds per square inch absolute (PSIA) What is atmospheric pressure at sea level? Correct Answer: 14.7 PSIA What does a differential gauge measure? Correct Answer: Difference between 2 separate points. Known as PSID What does a duplex gauge measure? Correct Answer: Measures and displays pressure readings simultaneously from 2 points What does a vacuum gauge measure? Correct Answer: Measure pressure lower than atmospheri...

Identify the pressure corresponding to 32 degrees F for R-123: ________. a) 23 inches of Hg vacuum b) 20 inches of Hg vacuum c) 17 inches of Hg vacuum d) 11 inches of Hg vacuum - CORRECT ANSWER b) 20 inches of Hg vacuum A hydrostatic tube test kit is used to: _________. a) blow all water from the tubes b) remove any water from the machine c) vent refrigerant d) determine if a tube leaks - CORRECT ANSWER d) determine if a tube leaks Excessive running of a purge system ...

Identify the pressure corresponding to 32 degrees F for R-123: ________. a) 23 inches of Hg vacuum b) 20 inches of Hg vacuum c) 17 inches of Hg vacuum d) 11 inches of Hg vacuum - CORRECT ANSWER b) 20 inches of Hg vacuum A hydrostatic tube test kit is used to: _________. a) blow all water from the tubes b) remove any water from the machine c) vent refrigerant d) determine if a tube leaks - CORRECT ANSWER d) determine if a tube leaks Excessive running of a purge system ...

Phlebotomy Practice Exam Questions with 100% Correct Answers Verified | Updated 2024/2025 The puncture site for a Simplate Bleeding Time Test should be: 5 cm below the antecubital bend Tubes should be inverted within ______ seconds of the draw. 30 seconds When performing a blood culture test, the ______________ uses standard vacuum tubes that contain the growth medium. Direct draw, vacutainer, syringe, butterfly vacutainer What test is not part of the blood sugar panel? Insu...