The hour angle is
A.measured from noon based on the local apparent time
B.positive in the forenoon
C.negative in the afternoon
D.all of the above
Category: Renewable Sources of Energy Mcqs
Glass is the most favoured material for the transparent covers to be used in flat-plate collectors. The usual practice is to have 1 or 2 covers with spacings in the range of
A.0.2 – 0.4 CM
B.5 – 10 cm
C.1.5 – 3 cm
D.15-20 cm
For a 25?C rise in temperature which of the following maerials will store the most heat?
A.A ton of water
B.A ton of iron
C.A ton of rocks
D.A ton of wood
Compared to the photosphere the corona region is characterized by
A.low density gas misture
B.higher temperature
C.variation in energy and diameter with time
D.all of the above
Tides arise
A.once a day
B.twice a day
C.thrice a day
D.four times a day
The process of transformation of a substance from solid phase into vapour phase directly without passing theough the liquid phase is called
A.melting
B.vaporization
C.sublimation
D.crystallization
The present theory of how the suns evergy is produced is based on Einsteins discovery of the relationship between
A.energy and gravity
B.matter and gravity
C.gravity and light
D.energy and matter
At 0900 h (local apparent time) the hour angle is
A.15?
B.45?
C.?45?
D.?15?
When moist air is cooled by sensible heat removal which of the following is incorrect?
A.Neither relative humidity nor specific humidity changes
B.Specific humidity changes but not relative humidity
C.Both relative humidity and specific humidity change
D.none of the above
