Charging by friction Guías de estudio, Notas de estudios & Resúmenes

Insulators charged by friction -when two insulators move relative to each other, friction between the two can result in both objects becoming electrically charged -one of the objects becomes positively charged and other is negatively -eg plastic being rubbed against duster -conductors can become charged but will only retain that charge of they are insulated from their surroundings. If not insulated, then any charge that builds up will leak away Charging by induction it's possible for obje...

State the key characteristics of the M60E3 machine gun - The M60E3 is a belt-fed, gas-operated, air-cooled, automatic weapon that can be fired from pedestal, bipod, or tripod mounts or as a shoulder fired weapon. Weight: 18.5 lbs Maximum range: 3725 M Maximum effective: 1100 M Grazing fire: 600 M Cyclic: 550-600 RPM Rapid: 200 RPM Sustained: 100 RPM State the methods for loading of the M60E3 machine gun. - There are two methods to loading the M60E3 either by cover raised or by c...

MCQ 770 Questions & Answer Electrical Engineering 2024 UpdateMCQ 770 Questions & Answer Electrical Engineering 2024 Update 1. The ratio of voltage and electric current in a closed circuit a. remains constant b. varies c. increases d. falls Ans-c 2. The curve representing ohm's law is a. sine function b. Linear c. a parabola d. a hyperbola Ans-b 3. The resistance of a conductor having length l area of cross section a and resistivity ρ is given as: a. ρa/l b. ρl/a c. ρla d. l/ρ...

MCQ 770 Questions & Answer Electrical Engineering 2024 UpdateMCQ 770 Questions & Answer Electrical Engineering 2024 Update 1. The ratio of voltage and electric current in a closed circuit a. remains constant b. varies c. increases d. falls Ans-c 2. The curve representing ohm's law is a. sine function b. Linear c. a parabola d. a hyperbola Ans-b 3. The resistance of a conductor having length l area of cross section a and resistivity ρ is given as: a. ρa/l b. ρl/a c. ρla d. l/ρ...

NOCTI Questions With Correct Answers Latest 2024/2025 (GRADED) How much does one gallon of water weigh? - Answer- 8.3 pounds Nonferrous metals does not contain any - Answer- iron Which of the following is a ferrous metal? - Answer- mild steel Properties of common ______________ materials are divided into the following categories: physical, mechanical, thermal, electric, and acoustic - Answer- solid Tensile strength is the resistance a metal has to being pulled apart - AnswerA typical form o...

Once a repair is completed, technicians must ___. - Answer-Carefully record the problem, causes, and solutions ___ maintenance is scheduled work required to keep equipment in peak operating condition. - AnswerPreventive ___ maintenance is performed to minimize emergency work and ensure reliable and efficient operations. - Answer-Scheduled A ___ is a document that details specific maintenance tasks to be completed. - Answer-Work order The ___ is a federal government regulatory agency that r...

Know and understand that insulators can be charged by friction When two insulators move relative to each other, friction between the two can result in both objects becoming electrically charged. One of the objects becomes positively charged, and the other becomes negatively charged. Charging by Induction When a neutral object is places near to a charged object, the object can become charged. If one end of an object charged by induction is momentarily earthed, the charge leaks away, and the o...

The efficiency of the refrigerant cycle is affected by the operation of the condenser. Of the following, a more efficient centrifugal compressor operation results from Lowering the condenser pressure In most semi hermetic compressors, the suction vapor is used too Cool's the motor The amount of refrigerant that flows through the orifices of an economizer is determined by the Difference between the high side and the low side pressure the instalation of an inline refrigera...

How do automatic expansion valves work? Evaporator pressure closes the valve and spring pressure opens the valve. When will a faulty check valve cause the most damage? On startup. What will happen if a TEV'S sensing bulb insulation wears off of the suction line in an 85 F Degree room? You will flood the evaporator. What can a clogged pump strainer cause? A reduction or loss in water flow which will lead to high condenser head pressure. What part of the Refrigerat...

MCQ 770 Questions & Answer Electrical Engineering 2024 UpdateMCQ 770 Questions & Answer Electrical Engineering 2024 Update 1. The ratio of voltage and electric current in a closed circuit a. remains constant b. varies c. increases d. falls Ans-c 2. The curve representing ohm's law is a. sine function b. Linear c. a parabola d. a hyperbola Ans-b 3. The resistance of a conductor having length l area of cross section a and resistivity ρ is given as: a. ρa/l b. ρl/a c. ρla d. l/ρ...