Science Quiz | General Knowledge Multiple Choice Questions and Answers | Page-19

Questions

91 A NOT gate can be implemented by

A a single transistor

B a single resistor

C a single diode

D two diode

Answer: Option [A]

92 The term reactor referred to in wastewater treatment is

A Clarifier

B Aeration tank

C Vassel

D Setting tank

Answer: Option [B]

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93 The earth is a

A non-absorber of heat

B good reflector of heat

C bad absorber and bad radiator of heat

D good absorber and good radiator of heat

Answer: Option [C]

94 Which of the following radiations has the least wavelenght

A g-ray

B X-ray

C a-ray

D b-ray

Answer: Option [A]

95 A light year is a unit of

A distance

B speed of light

C intensity of light

D none of the above

Answer: Option [A]