Question

In evacuated tube collectors
(A)Both conduction and convection losses are suppressed
(B) only convection losses are suppressed.
(C) Only conduction losses are suppressed.
(D) Only radiation losses are suppressed

Answer 1

Answer:

(A)Both conduction and convection losses are suppressed

Explanation:

Hope this answer will help you✌

Answer 2

The correct option is (A)Both conduction and convection losses are suppressed.

Explanation:

• Evacuated tube collectors, unlike flat panel collectors, do not heat the water directly within the tubes, reducing both conduction and convection losses.
• Instead, air is sucked out of the gap between the two tubes, resulting in a vacuum (hence the name evacuated tubes).
• The most typical method of collecting specimens is by the use of an evacuated tube system. This technique is better than using a needle and syringe because it allows blood to flow directly from the vein to the evacuated tube.