A. High heat capacity
B. Low heat capacity
C. High thermal conductivity
D. Both B. and C.
An ideal material for making cooking vessels should have___________________? Read More »
CHEMICAL ENGINEERING A. Precipitation of fine alloy carbides at high temperatures
B. Refinement of ferrite grain size by working
C. Decomposition of retained austenite upon heat treatment
D. Precipitation of complex inter-metallic upon heat treatment
Secondary hardening in steels arises out of the _____________________? Read More »
CHEMICAL ENGINEERING A. Season cracking of brass
B. Caustic embrittlement of steel
C. Both A. & B.
D. Neither A. nor (B)
Which of the following is an example of stress corrosion ? Read More »
CHEMICAL ENGINEERING A. Nipple
B. Socket
C. Union
D. Bell and spigot
A. 0.3-0.4
B. 12-14
C. 3-4
D. 20-25
A. Alumina
B. Platinum
C. Vanadium pentoxide
D. Iron oxide
A. Softens it to facilitate machining
B. Decreases the free carbon
C. Increases the strength
D. None of these
Annealing of cast iron__________________? Read More »
CHEMICAL ENGINEERING A. Voltage measuring
B. Temperature measuring
C. Temperature compensating
D. Both B. & C.
Thermistors are used in _____________ devices? Read More »
CHEMICAL ENGINEERING A. Less than the wet bulb temperature
B. More than the wet bulb temperature
C. More than the dry bulb temperature
D. Equal to wet bulb temperature
A. 0.7-1.0
B. 1.1-1.4
C. 1.5 – 1.8
D. 2.0 – 2.5
