Related Questions

Melinda's lights went out. She has 3 pairs of red socks in her drawer, 2 pairs of black socks, and 5 pairs of white socks. What is the minimum number of pairs she must remove from the drawer to ensure that she has a pair of each color
A 3
B 5
C 7
D 9
In a certain sock drawer, there are 4 pairs black socks, 3 pairs of back socks, 3 pairs of gray of gray socks and 2 pairs of corage socks. It socks removed at random without replaced, what is the minimum number of socks that must removes in order to ensure that two socks of the the same color have been removed?
A 11
B 4
C 3
D 7
Thermocouples are mainly used for the measurement of
A Temperature
B Resistance
C Eddy currents
D Coupling co-efficient
All the thermocouples used for temperature measurement use dissimilar metal
A Strips
B Bars
C Wires
D Beads
Constantan an alloy used in thermocouples is an alloy of
A Copper and tin
B Copper and zinc
C Copper and iron
D Copper and nickel
__________ is not used as a material of construction in thermocouples.
A Alumel
B Rhodium
C Constantan
D Duralumin
Constantan used in thermocouples is an alloy of
A Iron & copper
B Copper & aluminium
C Lead & tin
D None of these
Invar used in thermocouples is an alloy of nickel and
A Iron
B Copper
C Chromium
D Lead
__________ is undesirable in thermocouples used in industries,
A Linear relation of emf to temperature
B Corrosion resistance
C Oxidation resistance
D Non-linear relation of emf to temperature
Which of the following thermocouples has the widest temperature measurement range?
A Iron-constantan
B Chromel-alumel
C Copper-constantan
D Platinum-platinum/rhodium

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