Q1. Which blood group is universal acceptor?
Q2. If objects appear enlarged and inverted in a rear view mirror, then which type of mirror is used?
Q3. Soap bubble attains spherical shape due to ______.
(c) Surface tension
Q4. CAD stands for _____.
(a) Common Aided Design
(b) Computer Aided Design
(c) Complex Aided Design
(d) Communication Aided Design
Q5. Which of the following is a characteristic of an exothermic reaction?
(a) Release of heat
(b) Absorption of heat
(c) Doesn’t involve any change in temperature
(d) None of the option is correct
Q6. What is the chemical formula for Sodium Chloride (Salt)?
Q7. Which of the following gas contributes the maximum to the phenomena of global warming?
(b) Chlorofluorocarbon (CFC)
(c) Nitrogen dioxide
(d) Carbon dioxide
Q8. Who selects the Social Audit Committee under MGNREGA scheme?
(a) Chief Minister
(b) Gram Sabha
Q9. Which of the following was invented by Sir Humphry Davy?
(a) Safety Pin
(b) Steam Engine
(c) Safety Lamp
Q10. Who has won the 2016 Men’s Single title at US Open?
(a) Novak Djokovic
(b) Rafael Nadal
(c) Stan Wawrinka
(d) Andy Murray
S1. Ans.(d); AB+ blood group is universal acceptor.
S2. Ans.(a); Concave mirrors are used to provide a magnified and inverted image in rear view mirror.
S3.Ans. (c); The Surface tension of water provides the necessary wall tension for the formation of bubbles with soap water.The tendency to minimize that wall tension pulls the bubbles into spherical shape.
S4. Ans.(b); Computer-aided design (CAD) is the use of computer systems to aid in the creation, modification, analysis, or optimization of a design. CAD software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to create a database for manufacturing.
S5. Ans.(a); An exothermic reaction is a chemical reaction that releases energy by light or heat.
S6. Ans.(b); Chemical formula for Sodium Chloride (common salt) is NaCl.
S7. Ans.(d); Carbon dioxide contributes the maximum to the phenomena of global warming. The increase in atmospheric Carbon dioxide and other greenhouse gases has increased the amount of infrared radiation absorbed and re-emitted by these molecules in the atmosphere and thus increases temperature.
S8. Ans.(b); Gram Sabha selects the Social Audit Committee under MGNREGA. Under the Act every Gram Panchayat (village council) should have an annual MGNREGA plan that includes a list of all the projects that need to be carried out in the community.
S9. Ans.(c); The Davy lamp is a safety lamp for use in flammable atmospheres, invented in 1815 by Sir Humphry Davy.
S10. Ans.(c); The 2016 US Open was the 136th edition of tennis US Open, the fourth and final Grand Slam event of the year. In the men’s singles competition, Stan Wawrinka defeated defending champion Novak Djokovic in the final.