Related Questions

Duration of inspiration is decreased and rate of ventilation is increased due to stimulation of
A Pneumotaxic center
B Apneustic center
C Vagus nerve
D Nucleus of tractus solitarius
E Ventral respiratory group
Changes that occur during different phases of pulmonary ventilation are
A Right ventricular stroke volume is more during inspiration compared to left ventricular stroke volume
B Physiological splitting of 2nd heart sound is more prominent during inspiration
C Increase in heart rate during inspiration
D Most of the tidal air enters into the upper part of the lung.
E Fall in intra abdominal pressure during inspiration
The pulmonary ventilation perfusion ratio is
A Increased by hemorrhage
B About 0.8 at heart Level
C More in base than apex on erect posture
D Decreased in exercise
E Decreased with increased physiological dead space ( ↓ in Physiological shunt )
Ventilation - perfusion ratio
A Is the ratio of pulmonary ventilation to pulmonary blood flow
B Varies in various parts of lungs as an effect of gravity
C In upright position declines in a linear fashion from base to apex
D Non-uniformity of ventilation and perfusion of lungs can cause decline in co2 content
E Uniformity of this ratio can cause decline in systemic arterial PO2
Pick up the mechanical ventilation method used for tunnels from the following:
A Blowing fresh air by ducts to the face of tunnel
B Exhausting foul air by ducts from the face of the tunnel and permitting fresh air through the tunnel
C Blowing fresh air and exhausting foul air by ducts
D All the above
The function of positive crankcase ventilation (PCV) system is that it
A Mixes fuel with air
B Promotes combustion by creating a swirling movement in the air-fuel mixture
C Returns blow by gases from the crankcase to the intake system
D Feeds blow by gases to the exhaust manifold
Inter-distance between ventilation columns in a sewer line is kept
A 25 to 50 m
B 50 m to 100 m
C 100 m to 150 m
D 150 m to 300 m
In three coloured boxes - Red, Green and Blue, 108 balls are placed. There are twice as many balls in the green and red boxes combined as there are in the blue box and twice as many in the blue box as there are in the red box. How many balls are there in the green box ?
A 18
B 36
C 45
D None of these
Some birds settled on the branches of a tree. First, they sat one to a branch and there was one bird too many. Next they sat two to a branch and there was one branch too many. How many branches were there?
A 3
B 4
C 5
D 6
E 2
In a zoo, there are Rabbits and Pigeons. It heads are counted s, there are 200 and if legs are counted there are 580. How many pigeons are there ?
A 90
B 100
C 110
D 120

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