Soldering and Brazing MCQ
1.Which one of the following properties is NOT required by the soldering flux?
(A) Melting point of flux should be less than that of the solder material.
(B) Its wettability should be less.
(C) It should not react chemically with the solder material.
(D) It should not react chemically with the material
- Which one of the following statements is true for the hard solder ?
(A) Working temperature is less than 450 C
(B) Joint does not open when heated again.
(C) Alloy of tin and lead is used.
(D) Soldering is done with the help of electric soldering iron.
- Which one of the following statements is NOT true for the brazing process?
(A) Brazing is done using electrical soldering iron.
(B) Borax is used as flux.
(C) Brazed joint does not melt at high temperature.
(D) Joint is not affected due to vibrations
4.Choose the true statement from the following.
(A) Brazing is done using soldering iron.
(B) Flux is not required in soldering of printed circuit board.
(C) Solder material with 60 % tin + 40 % lead is used with printed circuit boards
(D) Melting point of solder is less than that of flux.
- Which one of the following flux is used in brazing?
(A) Zinc chloride
(B) Resin with alcohol
(D) Resin with hydrochloric acid