Related Questions

When two computers communicate with each other, they send information back and forth. If they are separated by a reasonable distance, they can send and receive the information through a direct cable connection which is called a null-modem connection. Presently what is the maximum distance in metres permitted in this null-modem connection?
A 80
B 100
C 30
D 150
E None of the above
What type of fusion welding process is used for welding sheet metals of all engineering metals (except Cu, Ag) in automobile and air craft industries, pipe and tubing production?
A Thermit welding
B Electroslag welding
C Resistance welding
D Submerged arc Welding
You need to configure a router for a Frame Relay connection to a non-Cisco router. Which of the following commands will prepare the WAN interface of the router for this connection?
A Router (config-if) #encapsulation frame-relay q933a
B Router (config - if) #encapsulation frame-relay ansi
C Router (config - if) #encapsulation frame-relay ietf
D Router (config - if) #encapsulation frame-relay cisco
Corrosion involves exchange of electrons in __________ corrosion.
A Chemical
B Electrochemical
C Both A & B
D Neither A nor B
Corrosion of metals can not be prevented by its
A Tempering
B Chromising
C Aluminising
D Alloying
With increase in impurities in metals, their corrosion resistances
A Increase
B Decrease
C Remain same
D May increase or decrease ; depending on the type of metal
Which of the following metals in not used for coating of the base metal to guard it against corrosion?
A Lead
B Cadmium
C Magnesium
D Aluminium
Which of the following is an example of cathodic protection of metals against corrosion ?
A Painted steel
B Galvanised iron
C Case hardened steel
D Lead lined reactor
Atmospheric corrosion of metals result from their
A Slow oxidation
B Fast oxidation
C Fast hydration
D Slow dehydration
Which of the following metals forms an amalgam with other metals?
A Tin
B Mercury
C Lead
D Zinc

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