General science-52

1. A car is moving with high velocity when it takes a turn. A force acts on it outwardly because of
a. centrifugal force
b. centripetal force
c. gravitational force
d. All of the above

2. Aldosterone regulates:
a. Blood Glucose
b. Serum Calcium
c. Urine Concentration
d. Sodium absorption

3. An athlete diving off high springboard can perform a variety of exercise in the air before entering the water body. Which one of the following parameters will remain constant during the fall?
a. The athlete's linear momentum
b. The athlete's angular momentum
c. The athlete's kinetic engine
d. The athlete's moment of inertia

4. Cream gets separated from milk when it is churned because of:
a. Gravitational force
b. Cohesive force
c. Centrifugal force
d. Frictional force

5. A body lying at rest suddenly breaks into two parts of equal masses which starts moving. The parts will move in:
a. opposite direction with equal speed
b. opposite direction with unequal speed
c. any direction with equal speed
d. same direction with equal speed

6. Newton is the unit of:
A. Work
B. Energy
C. Force
D. Acceleration

7. Now a day, most of buildings are made by having at least two layers of walls with a gap in between. Because:
a. it makes the building stronger
b. it prevents see page from outside
c. it protects the building from lightning
d. it helps in keeping the inside cooler in summer and warmer in winter

8. A perfect black body has the unique characteristic feature as:
a. a good absorber body
b. a good radiator only
c. a good absorber and a good radiator
d. Neither an absorber nor radiator

9. Which of the following instruments are used for measuring the speed of aeroplane?
a. Venturimeter
b. Orifice plate
c. Rotameter
d. Pilot tube

10. A geostationary satellite:
a. revolves about the polar axis
b. has a time period less than that of the near earth satellite
c. moves faster than a near earth satellite
d. is a stationary in the space