Unit 4a Study guides, Class notes & Summaries

Power Engineering 4a - Unit 9 - Plant Instrumentation Questions and Answers Already Passed Automatic systems which can make decisions are termed A) annunciation systems. B) logic systems. C) indicating systems. D) open loop systems. E) cascading systems. B In an automatic control system, the controller output signal manipulates the A) transmitter. B) sensing element. C) recorder. D) control valve. E) primary element. D The second from last step in an automatic boiler progr...

Power Engineering 4A - Unit 1 - Elementary Mechanics and Dynamics Latest Update Graded A+ What is the power required to apply a 200kN force over a distance of 15m in 15 seconds? Select one: a. 3000 W b. 1500 kW c. 1000 kW d. 200 kW D A 7m long bar is pivoted at 2m from the left end. A force of 60N is applied downwards on the left end and a force of 20N is applied downward on the right end. What would be the clockwise and counter-clockwise moments about the pivot, due to each f...

4A Unit 6 Questions and Answers Graded A+ (4-047-1.11) Electric arc temperatures may be as high as: Select one: a. 4250°C b. 5325°C c. 7450°C d. 8300°C d. 8300°C The two types of Penetrant Testing (PT) are fluorescent testing and: Select one: a. Developer testing b. Colour Contrast testing c. Infrared testing d. Viscous Penetrant testing b. Colour Contrast testing What are the main component metals of "white metal"? Select one: a. bronze and tin b. alumi...

4A Power Engineering - Unit 2 - Elementary Physical, Chemical, and Thermodynamic Principles Latest Version Graded A+ The second law of Thermodynamics states: In order to transfer heat from a colder substance to a hotter substance,________________ must be supplied. External work To assure that air is properly vented from a heating or cooling coil: Supply water connection should be at the bottom of the coil. Saturated steam is: Steam at saturation temperature. In the steam tables,...

Power Engineering 4a - Unit 8 – Electro technology Questions and Answers Graded A+ When using Fleming's Left Hand Rule, the index finger represents A) generator action flux direction. B) motor action motion direction. C) generator conductor motion direction. D) motor action flux direction. E) motor action direction of current flow. D A basic law of electricity is, unlike charges attract each other and like charges A) impact each other. B) hold each other. C) attract each oth...

Power Engineering 4a - Unit 9 - Plant Instrumentation Exam 2024/2025...

4A Unit 7 Questions and Answers Already Passed The most efficient insulators are: Select one: a. substances with air gaps b. substances with microscopic air pockets c. substances with reflective surfaces d. substances with multiple membranes b Low pressure steam pipes are usually connected together by: Select one: a. Welding, glands or screwed b. Welding, screwed or flanged c. Screwed, flanged or glands d. Welded, screwed, flanged or glands b Improper drainage of steam ...

4A Unit 7 Questions and Answers Rated A+ (4-049-2.2) When tightening the bolts on a pipe flange: Select one: a. Use a sequential criss-cross method of tightening b. The top bolts must be tightened first c. The gasket should be held in place by gasket glue d. Tighten every second bolt first, then tighten the others a. Use a sequential criss-cross method of tightening (4-049-1.13) All pipe weights with the same nominal pipe size have the same: Select one: a. Mass per metre of leng...

Power Engineering 4a - Unit 3, 4 - Introduction to power engineering and its governance in Canada, Plant and Fire Safety Already Passed The pressure of a fully charged SCBA is about A)24 MPa B)1 atmosphere C)31 MPa D)3 MPa E)20 MPa C This group recommends updates to the learning materials of each class of Power Engineer, and the criteria required to ensure a Power Engineer is properly qualified when a Certificate of Competency is issued. Select one: a. ANSI b. ACI c. SOPE...

4A Unit 8 Questions and Answers 100% Pass (4-083-3.2) An electrical distribution system is composed of service, feeders and: Select one: a. Trunk circuits b. Branch circuits c. Primary circuits d. Secondary circuits b. Branch circuits (4-082-2.6) A transformer has a primary voltage of 500 volts and 20 turns on the primary winding. If the secondary winding has 5 turns, the voltage of the secondary is: Select one: a. 4 volts b. 100 volts c. 2500 volts d. 125 volts d. 125 vo...