Electronics

Which Substance is used for making a Solder?

• (a) Tin

• (b) Lead

• (c) Zinc

• (d) All of These

Which of the following is a type of Soldering?

• (a) Soft Soldering

• (b) Hard Soldering

• (c) Fiber Soldering

• (d) Both (a) and (b)

Which Substance is added to Solder to increase its melting point?

• (a) Tin

• (b) Bitsmuth

• (c) Antimony

• (d) Lead

Which Substance is added in Solder to decrease its melting point?

• (a) Tin

• (b) Bitsmuth

• (c) Antimony

• (d) Lead

Soldering Iron is kept at an angle of :-

• (a) 20 to 35 Degree

• (b) 35 to 45 Degree

• (c) 45 to 60 Degree

• (d) 60 to 90 Degree

The Temperature of Soft Soldering is :-

• (a) More than 480 Degree Celsius

• (b) 460 Degree Celsius

• (c) Less than 450 Degree Celsius

• (d) 100 to 480 Degree Celsius

The Joint made by Soft Soldering is :-

• (a) Permanent and Strong

• (b) Temporary and Strong

• (c) Permanent and Weak

• (d) Temporary and Weak

The Temperature of Hard Soldering is :-

• (a) 100 to 600 Degree Celsius

• (b) 300 to 900 Degree Celsius

• (c) 600 to 900 Degree Celsius

• 900 to 1200 Degree Celsius

The joint made by Hard Soldering is :-

• (a) Permanent and Strong

• (b) Temporary and Strong

• (c) Permanent and Weak

• (d) Temporary and Weak

10. 10. Which of these is also called as Silver Soldering?

• (a) Soft Soldering

• (b) Hard Soldering

• (c) Fiber Soldering

• (d) None of These