1000+ Heat Transfer Multiple Choice Questions & Answers - 2

Question: 6

The temperature inside a furnace is generally measured by

(A) alcohol thermometer

(B) optical pyrometer

(C) mercury thermometer

(D) gas thermometer

Question: 7

1 micron is equal to

(A) 10^-3m

(B) 10^-4m

(C) 10^-5m

(D) 10^-6m

Question: 8

Pyrometer which react to all wavelengths of incident radiant energy are known as

(A) total radiation pyrometers

(B) disappearing filament type pyrometers

(C) polarising pyrometers

(D) optical pyrometers

Question: 9

The triple point temperature for water is

(A) 0 K

(B) 0° C

(C) 0.1.° C

(D) 0.01° C

Question: 10

In air preheater for boiler, heat is least transferred by

(A) conduction and convection

(B) radiation

(C) convection

(D) conduction