Papersbyjol

Select the non-ferrous metal from the following: (Multiple choice) Question 1 options: A) Wrought iron. B) Copper. C) Carbon steel. D) Stainless steel. - ANSWERB) Copper. Which of the following materials is a ferrous alloy? (Multiple choice) Question 2 options: A) Aluminum. B) Nickel. C) Chromium. D) Stainless steel. - ANSWERD) Stainless steel. Alloys are mixtures of a metal with: (Multiple choice) Question 3 options:A) Only other metals.B) Other non-metals.C) Both metals and no...

Guide Question - Section 2 "Electric current is readily conducted in metals (low resistance) because of the many free electrons" True or false - ANSWERTrue Guide Question - Section 2 "Conventional current flow is from negative to positive" True or False - ANSWERFalse Guide Question - Section 2 Materials that have a high resistance to current flow are called: a) Semi conductors b) conductors c) insulators - ANSWERc) insulators Guide Question - Section 2 "...

A consumable electrode is: - ANSWERAN electrode which melts and provides metal to fill the joint The weld heat affected zone is: - ANSWERthe portion of the base metal adjacent to the weld metal whose properties have been changed due to the heat of welding When an arc is formed between two electrodes - ANSWERelectricity flows from negative cathode to positive anode The magnetic pinch force helps in the process of the detaching the molten metal drops from the electrode tip. The magnetic f...

Ultrasonic couplant is used during inspection to: A) reduce friction on the transducer. B) fill voids and surface imperfections during the testing. C) increase the energy transmitted into the material. D) reflect subsonic sound waves that interfere with the testing. - ANSWERC In an X-ray tube, the energy generated from producing the X-ray beam is: A) 70% heat and 30% X-rays. B) 80% heat and 20% X-rays. C) 90% heat and 10% X-rays. D) 99% heat and 1% X-rays. - ANSWERD Because of th...

The maximum solubility of carbon in a iron is: (a) 2%. (b) 0.002%. (c) 0.02%. (d) There is no solubility. - ANSWER(c) 0.02%. True or false? When a steel is heated into the austenite region, all carbon and most other compounds dissolve to form a single phase. - ANSWERTrue True or false? Pearlite is a single phase. - ANSWERFalse What is the resulting structure of a 0.6% carbon steel slowly cooled from 900°C to room temperature? - ANSWERAbout 25% proeutectoid ferrite and 75% pearl...

When an arc is formed between two electrodes: A) electricity flows from the negative cathode to the positive anode. B) electricity flows from the positive cathode to the negative anode. C) electricity flows at random between the anode and cathode. D) electricity stops flowing once the arc is established - ANSWERA The SAW fluxes are: A) classified on their own. They have their own separate designation. B) not classified. Only the wire is classified. C) classified in conjunction with t...

Does the CSA Standard W47.1 specify the requirements for a company seeking certification? - ANSWERYes, This standard provides the requirements for the certification of companies engaged in the fusion welding of steel and the qualification of their personnel and welding procedures (Cl 1.1) Who is responsible for the welded products a company produces? - ANSWERThe company (1.2) The requirements of this standard are based on the principle that a certified company has full responsibility for the ...

Which of the following metals has the highest thermal conductivity? (a) carbon steel (b) stainless steel (c) aluminum - ANSWER(c) The Ellingham diagram (a) is a plot of thermal conductivity against temperature, (b) shows the free energy of oxide formation against temperature. (c) shows the rate of oxidation of metals against temperature. - ANSWER(b) Thoria is added to tunsten electrodes for what purpose? - ANSWERTo increase thermionic emission by lowering the work function. True o...

CREATING A SAFE WORKING ENVIRONMENT IS STRICTLY THE RESPONSIBILITY OF THE EMPLOYER? FALSE OR TRUE - ANSWERFALSE WHAT ARE 3 WAYS THAT WHIMIS INFORMATION IS CONVEYED IN THE WORKPLACE - ANSWERLABLES MATERIAL SAFETY DATA SHEETS TRAINING IT IS THE JOINT RESPONSIBILITY OF THE EMPLOYEE AND EMPLOYER WHAT DOES WHMIS STAND FOR? - ANSWERWORKPLACE HAZARDOUS MATERIALS INFORMATION SYSTEM IF YOU WISHED TO FIND OUT THE HAZARDOUS INGREDIENTS OF A PRODUCT AND THEIR TOXICOLOGICAL PROPERTIES, WHERE WO...

On a radiograph, undercut appears as a _________ line. (A) light (B) dark - ANSWER(B) dark What is the Canadian Standard for safety in welding? - ANSWERCSA W117.2 What is the typical three-phase input voltage in most Canadian welding shops? - ANSWER600V True or False: The cable from the workpiece back to the welding machine is called the "ground lead". - ANSWERFalse. The correct term is the "work lead". What is the type of radiation that can damage living cells? - ANS...