Question: The best stimulator of respiratory center is____________?

• 1. Decrease in arterial carbon dioxide level
• 2. Increase in arterial carbon dioxide level
• 3. Increase in arterial oxygen level
• 4. None of the above

Question: Oxygen dissociation curve shifts to the right by all of the following except_____________?

• 1. Rise in temperature
• 2. Rise in carbon dioxide tension
• 3. Rise in pH
• 4. Rise in H+ ion

Question: Most effective method of assessing breathing is by measuring____________?

• 1. Tidal volume
• 2. Respiratory rate
• 3. Alveolar ventilation
• 4. FEV 1

Question: The major sign of hypoventilations_____________?

• 1. Cyanosis
• 2. Dyspnea
• 3. Hypercapnia
• 4. Hypoxia

Question: During inspiration when the diaphragm contracts, the intrapleural pressure becomes_____________?

• 1. More negative
• 2. Less negative
• 3. Positive
• 4. Equal to the intra alveolar pressure

Question: A field of force can exist only between_____________?

• 1. two molecules
• 2. two ions
• 3. two atoms
• 4. two metal particles

Question: A substance whose molecules consist of dissimilar atoms is called____________?

• 1. semi-conductor
• 2. super-conducto
• 3. compound
• 4. insulator

Question: International ohm is defined in terms of the resistance of________________?

• 1. a column of mercury
• 2. a cube of carbon
• 3. a cube of copper
• 4. the unit length of wire

Question: Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be_________________?

• 1. 9 times
• 2. 1/9 times
• 3. 1/3 times
• 4. 3 times

Question: Three 6 ohm resistors are connected to form a triangle. What is the resistance between any two corners ___________?

• 1. 3/2 Q
• 2. 6 Q
• 3. 4 Q
• 4. 8/3 Q