Related Questions

If all the factors of productions are increased in a fixed proportion , volume of production increase proportion which is greater than the proportion of increase in the factors of production -this state can be described most appropriately by -
A Proportionate return to scale
B Disproportionate return of scale
C Increasing return to scale
D Law of scale
It all the factors of productions are increased in a fixed proportion, volume of production increase proportion which is greater than the proportion of increase in the factors of production this state can be described most appropriately by-
A Proportionate return to scale
B Disproportionate return of scale
C Increasing return to scale
D Law of scale
“When one of the factors of production is fixed in quantity or is difficult to increase, increasing the other factors of production will result in a less than proportionate increase in output”. This statement is known as the:
A Law of diminishing return
B Law of supply
C Law of demand
D Law of supply and demand
which one of the following is a source of pulmonary embolism?
A Deep veins of leg
B IIiac arterics
C Mesentoric vein
D Postal vein
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
In the pulmonary circulation
A The vascular resistance decreases at birth
B Hypoxia causes vasodilatation
C The vascular resistance is about 10 times lower than the total peripheral resistance
D Pulmonary artery & vein pressure increases by the same amount from heart level to the base in upright position
E If the cardiac output doubles
F pulmonary artery pressure also doubles
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 )
When CO2 is removed from the pulmonary capillary, there is a net
A Efflux of Cl- from RBC
B Influx of HCO3 in RBC
C Increase in pH of blood
D Efflux of O2 from RBC
E Increase in PCV of blood
Causes of pulmonary hypertension are
A Mitral stenosis
B Eisenmenger's syndrome
C Cirrhosis of liver
D Pulmonary stenosis
E Tetralogy of fallot
Features of pulmonary hypertension include
A Loud 2nd heart sound
B Left parasternal heave
C Prominent C wave of jugular venous pulsation
D Late diastolic murmur in pulmonary area
E Bilateral basal crepitions over both lungs

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