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Free gk questions Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. Oxygen is absorbed in
(a)
alkaline pyrogallic acid
(b)
copper sulphate solution
(c)
caustic soda solution
(d)
silver nitrate
2. A light dependent resistor is basically a
(a)
carbon resistor
(b)
power resistor
(c)
variable resistor
(d)
non-metallic resistor
3. The substance with which a recording tape is coated is
(a)
silver nitrate
(b)
soft iron
(c)
ferrite or iron oxide
(d)
pure magnetic steel
4. The voltage drop across the electrodes of a mercury pool rectifier
(a)
varies inversely as load current
(b)
is almost independent of load current
(c)
varies linearly with the load current
(d)
varies exponentially with the load current
5. Swampy areas in India can be seen in
(a)
Maharashtra
(b)
Rajasthan
(c)
Uttar Pradesh
(d)
West Bengal
6. Highest specific gravity metal is
(a)
gold
(b)
silver
(c)
aluminium
(d)
copper
7. Which of the following material is softer than calcite?
(a)
apatite
(b)
corundum
(c)
gypsum
(d)
quartz
8. Cumulative compound DC motors are suitable for
(a)
centrifugal pumps
(b)
centre lathes
(c)
tool cutting machines
(d)
traction
9. Cathode rays are
(a)
moving changes of either sign
(b)
moving protons
(c)
moving electrons
(d)
stream of cathodes
10. Sparkling occurs when a load is switched off because the circuit has high
(a)
inductance
(b)
capacitance
(c)
resistance
(d)
all of the above
