Stationary Samenvattingen, Aantekeningen en Examens

AQA AS MATHEMATICS 7356/1 Paper 1 Question Paper + Mark scheme [MERGED] June 2022 PB/Jun22/E5 7356/1 (JUN) AS MATHEMATICS Paper 1 Time allowed: 1 hour 30 minutes Materials l You must have the AQA Formulae for A‑level Mathematics booklet. l You should have a graphical or scientific calculator that meets the requirements of the specification. Instructions l Use black ink or black ball-point pen. Pencil should only be used for drawing. l Fill in the boxes at the top of this pag...

AQA AS PHYSICS 7407/2 Paper 2 Version: 1.0 Final *JUN* IB/M/Jun23/E7 7407/2 For Examiner’s Use Question Mark 1 2 3 4 5–34 TOTAL Wednesday 24 May 2023 Afternoon Materials For this paper you must have: • a pencil and a ruler • a scientific calculator • a Data and Formulae Booklet • a protractor. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions ...

_________ are necessary for complete combustion correct answer: time, temperature, mixture, and atomization if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ correct answer: 214.7 a boiler is operating at 400 PSI, and the safety valve opens at 410 PSI and closes at 398 PSI. The blowdown is______psi correct answer: 12 an oil cooler is commonly used with a(n) ________ when operating in conjunction with a turbo-generator correct answer: steam turbine a b...

IMSA Traffic Signal Technician Level 1 | Questions and Verified Answers | Grade A | 100% Correct (2024 / 2025 Update) Q: Hazardous underground utilities: Works must be aware of what ? Answer: Of the location of utilities that cannot be readily seen, including what type they are and the potential for danger that they possess. Q: Most states and provinces have established what ? Answer: Utility protection laws that require contractors to notify all known utility owners prior to the beginning excav...

How much clearance from the top of the boiler is needed for a HP boiler that produces 70000 lbs of steam? - Answer- 7 feet On a gas fired boiler what is the proper gas to air mixture - Answer- 30%-70% and in special arrangements it can be as high as 100% . ANSWER CHAPTER 11 remember% What is the total hardness in a system that was found to have calcium hardness of 60ppm and magnesium hardness of 18ppm and carbon hardness of 12 ppm? - Answer- TH=(Ca x 2.5) + (Mg x 4.1)nTH=(60 x 2.5) + (18...

An AC circuit consists only of a pure inductance and a power source. The relationship between the voltage and the current in this circuit is that the correct answer: current lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. correct answer: True ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn by this parallel combination is 30 amps. Under these conditions, the line voltage wil...

3rd Grade Stationary Engineer 21 – 40 Exam Questions and Answers

What is a return tubular boiler? correct answer: A return tubular boiler - the products of combusting passing through the tubes while the water surrounds the tubes. What is a water tube boiler? correct answer: A water tube boiler - water inside the tubes while the production of combustion passes around the tubes. How is the head of a B&W boiler stayed? correct answer: There are no stays Why are the tubes on a Sterling Boiler bent? correct answer: So they can enter the drum radially....

An AC circuit consists only of a pure inductance and a power source. The relationship between the voltage and the current in this circuit is that the Correct Answer current lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. Correct Answer True ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn by this parallel combination is 30 amps. Under these conditions, the line voltage will be...