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Free tnpsc model questions Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. The resistance of a pn junction in forward bias is
(a)
infinite
(b)
high
(c)
low
(d)
zero
2. Radioactive isotope of hydrogen is
(a)
tritium
(b)
deuterm
(c)
protium
(d)
all of the above
3. In a transistor, the base is
(a)
an extrinsic semiconductor
(b)
a conductor of high resistance
(c)
a conductor of low resistance
(d)
an insulator
4. Curie is the unit of
(a)
energy
(b)
heat
(c)
radio-activity
(d)
temperature
5. Masses of stars and galaxies are usually expressed in terms of
(a)
lunar mass
(b)
solar mass
(c)
earth’s mass
(d)
neutron mass
6. A rocket works on the principle of conservation of
(a)
angular momentum
(b)
energy
(c)
linear momentum
(d)
mass
7. A typical example of a semiconductor is
(a)
mica
(b)
quartz
(c)
platinum
(d)
germanium
8. A geostationary satellite should be launched such that it moves from
(a)
north to south in the polar plane
(b)
west to east in the equatorial plane
(c)
south to north in the polar plane
(d)
east to west in the equatorial plane
9. Dynamic lift is related to
(a)
pascal’s law
(b)
equation of continuity
(c)
archimedes principle
(d)
bernoulli’s theorem
10. A digital signal
(a)
is more reliable than analog signal
(b)
is less reliable than analog signal
(c)
is equally reliable as the analog signal
(d)
none of the above
