A. °API = 200(G – 1)
B. °API = (141.5/G) – 131.5
C. °API = (140/G) – 130
D. °API = 145 – (145/G)
Related Mcqs:
- °API gravity of water at N.T.P. is about__________________?
A. 0
B. 1
C. 10
D. 100 - Which of the following expressions defines the Baume gravity scale for liquids lighter than water ?
A. °Be = (140/G) – 130
B. °Be = 200(G-1)
C. °Be = 145 – (145/G)
D. °Be = (400/G) – 400 - Which of the following expressions defines the Baume gravity scale for liquids heavier than water ?
A. (141.5/G) – 131.5
B. 145 – (145/G)
C. 200 (G-1)
D. (400/G) – 400 - Which form of silica has the highest specific gravity ?
A. Quartz
B. Cristobalite
C. Tridymite
D. All have the same specific gravity - One of the specific gravity scales is “Brix” (used specifically for sugar solution). It is defined as ______________?
A. Brix = (400/G) – 400
B. Brix = 200 (G-1)
C. Brix = 145 – (145/G)
D. None of these - An aqueous solution of 2.45% by weight H2SO4 has a specific gravity of 1.011. The composition expressed in normality is______________?
A. 0.2500
B. 0.2528
C. 0.5000
D. 0.5055 - Which of the following gravity scales is used exclusively for liquids heavier than water ?
A. Baume scale
B. Twaddell scale
C. API scale
D. None of these - Lower wall courses of soaking pits are made of _____________ bricks to avoid the action of molten slag & scale?
A. Chrome or magnesite
B. Silicon carbide
C. Silica
D. Low duty fireclay - During a phase change process like sublimation, vaporisation, melting etc., the specific ____________ does not change?
A. Enthalpy
B. Gibbs free energy
C. Internal energy
D. Entropy - With increase in the solute concentration, the specific heat of aqueous solutions _____________________?
A. Increases
B. Decreases
C. Remains unchanged
D. Either A. or B.; depends on the type of solution
