In hot wire anemometer used for gas flow measurement, the wire is normally made of ______________________?
A. Copper
B. Platinum
C. Constantan
D. Chromium
Materials and Construction
Addition of 2% nickel in steel makes it suitable for making ___________________?
Addition of 2% nickel in steel makes it suitable for making ___________________?
A. Electronic valves
B. Boiler plates, rivets etc.
C. Turbine blades
D. Connecting rod
Low carbon steels are those in which carbon percentage is around____________________?
Low carbon steels are those in which carbon percentage is around____________________?
A. 0.1 to 0.35
B. 0.4 to 0.7
C. 0.8 to 1.5
D. 1.5 to 2
Nickel and copper are the basic constituents of__________________?
Nickel and copper are the basic constituents of__________________?
A. Hastelloy
B. Monel metal
C. German silver
D. Inconel
Tubes of multiple effect evaporator used for concentration of sugar cane juice are made of __________________?
Tubes of multiple effect evaporator used for concentration of sugar cane juice are made of __________________?
A. Nickel
B. Copper
C. Stainless steel
D. Brass
Sulphuric acid pickling tanks are lined with__________________?
Sulphuric acid pickling tanks are lined with__________________?
A. Nickel
B. Rubber
C. Aluminium
D. Glass
With increase in carbide/graphite ratio in cast iron, its__________________?
With increase in carbide/graphite ratio in cast iron, its__________________?
A. Hardness & brittleness increases
B. Ductility decreases
C. Both A. and B.
D. Neither A. nor B.
Which is an amorphous material ?
Which is an amorphous material ?
A. Glass
B. Mica
C. Brass
D. Cast iron
Ammonium chloride solution is stored/ treated in _____________ vessels/pipes?
Ammonium chloride solution is stored/ treated in _____________ vessels/pipes?
A. Plain carbon steel
B. Stainless steel
C. Rubber or durmet-20 lined
D. Lead
In order to be called steel, an alloy should have iron percentage greater than____________________?
In order to be called steel, an alloy should have iron percentage greater than____________________?
A. 80
B. 70
C. 90
D. 50