WELDER ELECTRICIAN MECHANIC AUTO ELECTRICAL & ELECTRONIC DRESS MAKING MECHANIC MOTOR VEHICLE COMPUTER MCQ TEST.
1-The welding method whichis used to join thin metal sheets?
(A)Arc welding
(B)Gas welding
(C)Resistance welding
(D)Hydrogen welding
2-In acetylene cylinder, theacetylene is dissolved in
(A)Carbon dioxide
(B)Water
(C)Oxygen
(D)Acetone
3-Oxidizing flame is a flamewhich is obtained by supplying
(A)less volume of acetylene and more volume of oxygen
(B)more volume of acetylene and less volume of oxygen
(C)equal volume of acetylene and oxygen
(D)None of the above
4-Which of the followingwelding processes use consumable electrode?
(A)Submerged arc welding
(B)MIG welding
(C)TIG welding
(D)CIG welding
5-The heat generated inresistance welding is given by:
(A)H = I2RT
(B)H = I2R / T
(C)H = I2 / RT
(D)H = RT / I2
6-The process of joining twopieces in which a non-ferrous alloy is introduced in liquid state between thepiece of metals and allowed to solidify, is known as
(A)welding
(B)brazing
(C)lancing
(D)riveting
7-In MIG welding process,the gas used for welding aluminium:
(A)Pure argon gas
(B)CO2
(C)Argon oxygen mixture
(D)Nitrogen
8-Following method melt thebase metal
(A)Soldering
(B)Brazing
(C)Welding
(D)All of the above
9-Following energy sourcecan be used for welding
(A)electron beam
(B)friction
(C)ultrasound
(D)all of the above
10-Following is the oldesttype of welding
(A)forge welding
(B)arc welding
(C)resistance welding
(D)oxy-fuel welding
11-The term “weld’’ is of___ origin.
(A)English
(B)Spanish
(C)Arabic
(D)French
12-In arc welding, thelength of arc is directly related to the
(A)current
(B)voltage
(C)both (A) and (B)
(D)None of the above
13-The following welding processcan use either type of direct current, as well as alternating current.