In practice, the compression ratio of compression-ignition (CI) engine ranges from ______________________?
(A) 15 to 25
(B) 5 to 10
(C) 40 to 55
(D) 60 to 70
The specific gravity of coal depends mainly on its __________________ content ?
(A) Carbon
(B) Volatile matter
(C) Ash
(D) Moisture
The refractory lining of the bottom in a basic electric arc furnace is made of___________________?
(A) Silica
(B) Alumina
(C) Magnesia
(D) Fireclay
Unit of viscosity in CGS system is_______________________?
(A) gm .cm-1 sec-1
(B) gm . cm2 . sec-2
(C) gm .cm-2, sec-1
(D) gm . cm . sec-1
A dummy activity is used in PERT network to describe the_____________________?
(A) Precedence relationship
(B) Resource idleness
(C) Resource restriction
(D) Necessary time delay
Large diameter reinforced cement concrete (RCC) pipes are generally joined by ____________________ joint ?
(A) Flanged iron
(B) Collar
(C) Flexible
(D) Expansion
Carnot cycle is also termed as the constant _________________ cycle in thermodynamics?
(A) Entropy
(B) Pressure
(C) Volume
(D) Heat
Matte smelting is used in the extraction of_____________________?
(A) Lead
(B) Zinc
(C) Aluminium
(D) Copper
Increase in the entropy of a system represents the_____________________?
(A) Degradation of energy
(B) Decrease in system pressure
(C) Increase in the availability of energy
(D) Increase in the temperature
Minimum number of members required to form a Public Limited Joint Stock Com-pany is___________________?
(A) 7
(B) 10
(C) 12
(D) 17