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.Management Sciences
Category: Chemical Engineering Basics
Large diameter reinforced cement concrete (RCC) pipes are generally joined by ____________________ joint ?
A. Flanged iron
B. Collar
C. Flexible
D. Expansion
Rankine cycle comprises of two isothermal and two ___________________ processes?
A. Isobaric
B. Polytropic
C. Isentropic
D. None of these
Preheating before welding is done to____________________?
A. Make the plate softer
B. Burn oil & grease sticking to plate surfaces
C. Avoid plate distortion
D. Prevent cold cracks
Vernier calipers cannot be used to measure the______________________?
A. I.D. & O.D. of the shaft
B. Thickness of parts
C. Depth of holes
D. Clearance between two mating surfaces
The most suitable material of construction for a sewer to carry sewage under high pressure is________________________?
A. Asbestos cement
B. Steel
C. Cement concrete
D. Stoneware
When an isolated thermodynamic system executes a process ___________________?
A. Work is done
B. Heat transfer takes place
C. Mass flow occurs across the boundary of the system
D. No chemical reaction takes place within the system
Joule-Thomson co-efficient is the ratio of________________?
A. Pressure change to temperature change occuring during adiabatic compression of a gas
B. Pressure change to temperature change occuring during adiabatic throttling of a gas
C. Temperature change to pressure change occuring during adiabatic compression of a gas
D. Temperature change to pressure change occuring during adiabatic throttling of a gas
Angular displacement can be measured suitably by a______________________?
A. Shaft encoder
B. Linear variable differential transducer (LVDT)
C. Stroboscope
D. Tachometer
_______________ is the trade name assigned to a non-ferrous cast alloy composed of cobalt, chromium & tungsten ?
A. Stellite
B. High speed steel
C. Cermet
D. Alnico
________________ is the hardest material out of the following ?
A. Boron carbide
B. Tungsten carbide
C. Hardened steel
D. Silicon carbide
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