Search
.Management Sciences
Category: Materials and Construction
Hydrochloric acid absorber in made of___________________?
0
A. Cast iron
B. Mild steel
C. Karbate
D. Stainless steel
Constantan is an alloy of____________________?
A. Cu (55%) & Sn (45%)
B. Cu (55%) & Ni (45%)
C. Pt (95%) & Rh (10%)
D. Fe (80%) & Ni (20%)
Carbon percentage in medium carbon steel is around__________________?
A. 0.1 to 0.35
B. 0.35 to 0.5
C. 0.8 to 1.4
D. 1 to 1. 5
Graphite is a good________________?
A. Thermal & electrical insulator
B. Conductor of heat
C. Conductor of electricity
D. Both B. & C.
The damage/deterioration of metals by the ______________ action of fluids is called ‘erosion’?
A. Abrasive
B. Corrosive
C. Both A. & B.
D. Neither A. nor B.
Carbon is present in the combined form (carbide) in case of______________________?
A. Pig iron
B. Steel
C. Ferroalloys
D. All A., B. & C.
Which of the following is an alloy of nickel and copper ?
A. Hastelloy
B. Duriron
C. Monel
D. Inconel
_____________________ is used for determining the tensile strength of steels ?
A. Hydraulic press
B. Universal testing machine
C. Mechanical press
D. None of these
Teflon (PTFE) is corroded by_______________?
A. Hydrochloric acid (10%)
B. Hydrochloric acid (95%)
C. Sulphuric acid
D. None of these
Concrete tank can be used to store________________?
A. Alum
B. Ferrous sulphate
C. Sulphuric acid
D. Saturated brine
Recent Comments