Soldering MCQs | Soldering Multiple Choice Questions and Answers

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Questions
1 Which of the following filler metals is used in the electrical industry?
A BAG-5
B BAG-3
C BAG-1
D None of these

Answer: BAG-5
2 Tin-zinc solders are used for joining __________
A Copper
B Zinc
C Aluminum
D Glass

Answer: Aluminum
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3 Addition of ___________ increases the mechanical properties of a tin-lead solder.
A Antimony
B Molybdenum
C Bismuth
D Tellurium

Answer: Antimony
4 __________ solders are used for glass-to-glass and glass-to-metal soldering.
A Indium-tin
B Tin-zinc
C Lead-silver
D Cadmium-zinc

Answer: Indium-tin
5 A germanium atom contains
A Four valence electrons
B Five valence electrons
C Only two electrons orbits
D Four protons

Answer: Four valence electrons
6 _________ is the process of the solder molecules combining with the molecules of the metals being soldered.
A Wetting
B Desoldering
C Tinning
D Soldering

Answer: Wetting
7 The ratio of DC power output to applied input AC power in the rectifier is known as __________.
A Rectifier efficiency
B Ripple frequency
C Ripple factor
D Peak Inverse Voltage

Answer: Rectifier efficiency
8 Which of the following filler metals is used for carbide tip brazing?
A BAG-4
B BAG-18
C BAG-1
D BAG-8

Answer: BAG-4
9 Nickel filler metals are heat resistant up to ________ in short time service.
A 1666oC
B 982oC
C 1204oC
D None of these

Answer: 1204oC
10 Copper and aluminum can be joined by brazing when _________ alloy is used.
A Aluminum-silicon
B Aluminum-zinc
C Copper-zinc
D Copper-tellurium

Answer: Aluminum-silicon
11 The liquid temperature of the filler metal used in brazing is _________
A 427oC
B 1000oC
C 150oC
D 723oC

Answer: 427oC
12 What is the solidus temperature of tin-lead solders?
A 444
B 297
C 183
D None of above

Answer: 183
13 Aluminum can be joined to another aluminum with the use of ________ solder.
A Cadmium-silver
B Lead-silver
C Indium-tin
D Fusible alloy

Answer: Cadmium-silver
14 A larger resistor has __________ wattage rating.
A Higher
B Lower
C Same
D None of them

Answer: Higher
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