Today, all competitive exams are Multiple Choice Questions(MCQ) based examination system and the main factor is to answer each question in a prescribed time. So, practice as much as possible before the original test you are going to face.
Total number of Multiple Choice Question (MCQ) is 15 and time allotted for each question is 30 seconds. After the allotted time, the question will be marked as un-attempt.
QUIZ
Test Conducted by: ObjectiveBooks.com
Next Mock Tests:
01. The difference in the properties of a substance in three states of matter depends upon the
(A) Binding energy of atoms
(B) Difference in molecular shape
(C) Difference in intermolecular forces.
(D) None of these
Answer: Option C
02. More than 1000 tons refrigeration capacity plants are usually of __________ type.
(A) Vapour compression
(B) Vapour absorption
(C) Air refrigeration
(D) None of these
Answer: Option B
03. Ferrites are __________ magnetic.
(A) Anti
(B) Para
(C) Ferri
(D) Ferro
Answer: Option C
04. Pick out the wrong statement.
(A) In Parkes process, zinc is added to remove silver from lead
(B) In the Pidgeon process of producing magnesium, powdered Ferro-silicon is used as the reducing agent
(C) Molten lead is used for shock cooling of the zinc vapours in the zinc blast furnace
(D) Pure copper electrodes are used as anode for electro-refining of copper
Answer: Option D
05. Pick out the wrong statement.
(A) Annealing twins are not observed in pure aluminium, because it has higher strain energy
(B) Load during cold rolling can be lowered by the application of front tension
(C) Very fine grain structure is desirable for high temperature creep application of materials
(D) Soft magnetic materials are those which have less area within the hysteresis loop
Answer: Option C
06. Lubricants can be used to
(A) Transmit power hydraulically
(B) Form a seal in compressors
(C) Remove contaminants by flushing and to insulate transformers, switchgears etc
(D) All (a), (b) & (c)
Answer: Option D
07. Ingrannular corrosion occurs __________ stainless steel.
(A) In all types of steels except
(B) At the surface of
(C) Along grain boundaries of
(D) In the core of
Answer: Option C
08. Rate of chemical reaction is not much affected, if the reactants are in __________ form.
(A) Solids
(B) Liquids
(C) Either (a) or (b)
(D) Gaseous
Answer: Option C
09. Pick out the wrong statement. Termination of polymerisation reaction occurs, if the
(A) Catalyst supply is stopped
(B) Monomer supply is exhausted
(C) Impurities present in monomers interfere with the chemical reaction
(D) Two ends of a chain of molecules join
Answer: Option A
10. Which of the following relatively employs the highest heat transfer surface area in a high pressure boiler?
(A) Air-preheater
(B) Economiser
(C) Steam superheater
(D) Furnace water wall
Answer: Option A
11. In 18-4-1 high speed steel, 18, 4 & 1 respectively denote the percentage of
(A) Chromium, tungsten & vanadium
(B) Tungsten, chromium & vanadium
(C) Tungsten, vanadium & chromium
(D) Tungsten, chromium & molybdenum
Answer: Option B
12. Normal dosage of chlorine in public water supply scheme ranges from __________ ppm.
(A) 0.5 to 1
(B) 10 to 15
(C) 300 to 500
(D) 1000 to 1500
Answer: Option A
13. In order to protect the aquatic creatures, the dissolved oxygen content in fresh water stream should never be less than __________ ppm.
(A) 0.5
(B) 1
(C) 5
(D) 20
Answer: Option C
14. Lubrication is done to control
(A) Friction
(B) Wear
(C) Temperature
(D) All (a), (b) & (c)
Answer: Option D
15. The reductant used in the extraction of magnesium from calcined dolomite via Pidgeon's process is
(A) Pure carbon
(B) Pure silicon
(C) Ferro silicon
(D) Ferro manganese
Answer: Option C
