Online GK Series

This site is dedicated to the aspirants of competitive exams SSC, UPSC, Railways, Postal Assistants, Bank, GATE and NET

General Science GK Multiple Choice Questions and Answers for Job Related Exams

106 The substance that hardens when mixed with water is:
A Red lead
B Gypsam salt
C Epsom salt
D Plaster of Paris

Answer: Option [D]
107 An instrument for maintaining constant temperature by the use of a device which supplies heat at required temperature is known as :
A Radar
B Rocket
C Thermostat
D None of the above

Answer: Option [C]
108 A thick glass tumbler cracks when hot water is poured into it. Why ?
A Due to pressure exerted by hot liquid
B On account of difference of temperature between the liquid and the atmosphere
C Because of uneven expansion of the inner and outer walls of the tumbler with hot water
D None of the above

Answer: Option [C]
109 Which vitamin is essentail for the formation of blood ?
A B12
B B6
C B2
D B1

Answer: Option [A]
110 The disease caused by bacteria is :
A Common cold
B Tetanus
C Polio
D Ringworm

Answer: Option [B]


Important EBooks for Competitive Exams