General Knowledge Questions And Answers :: General Science: part23



General Knowledge : General Science QUESTIONS AND ANSWERS :: part23 : 51 to 55

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :

51.Which of the following waves can propagate in a vacuum ? 1. Radio waves 2. Light waves3. X-rays 4. Ultrasonic waves Select the correct answer using the codes given below :

1, 2 and 3
1, 2, 3 and 4
2, 3 and 4
1 and 4

52.Which of the following is the lightest metal ?

Mercury
Silver
Lithium
Lead

53.The element common to all acids is :

carbon
hydrogen
oxygen
sulphur

54.The charcoal to decolourise raw sugar is :

animal charcoal
sugar charcoal
coconut charcoal
wood charcoal

55.A small weight is put on the pressure cooker. It increases the pressure of the steam because :

the weight is proportionate to the steam required
area of contact is small
the weight stops the steam from escaping
of Bernoullis principle

More General Science QUESTIONS AND ANSWERS available in next pages

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