GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 092

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 092

911). When a common salt is mixed with ice, the freezing point
A). is lowered
B). is raised
C). remains unaffected
D). first is lowered and then raised

Answer: is lowered


   
912). Current always flows from
A). high potential to low potential
B). low potential to high potential
C). both of these
D). none of these

Answer: high potential to low potential


   
913). For a simple pendulum, the graph between I and T will be a
A). circle
B). parabola
C). straight line
D). None of these

Answer: straight line


   
914). A solar eclipse occurs when the
A). earth comes between the sun and the moon
B). moon is at right angle to earth
C). moon comes between the sun and the earth
D). None of these

Answer: moon comes between the sun and the earth


   
915). Recording of sound waves on tapes was first invented by
A). Ampere
B). Bacquerel
C). Fleming
D). Poulson

Answer: Poulson



916). A transformer is used to
A). increase DC voltage
B). increase or decrease AC voltage
C). decrease DC voltage
D). convert DC into AC

Answer: increase or decrease AC voltage


   
917). The surface temperature of sun is
A). 2,000 k
B). 6,000 k
C). 4,000 k
D). 10,000 k

Answer: 6,000 k


   
918). The unit of moment of force is
A). joule
B). watt
C). metre
D). newton metre

Answer: newton metre


   
919). Which one of the following is a unit of energy?
A). Watt
B). Joule
C). Newton
D). Newton/metre

Answer: Joule


   
920). The substance used as a semi-conductor is
A). Carbon
B). Boron
C). Germanium
D). Oxygen

Answer: Germanium