Bissoy.com
Doctors Medicines MCQs Q&A

Which of the following is true for metals?

Which of the following is true for metals? Correct Answer Grain boundary energy > Twin boundary energy > Surface energy

Related Questions

The following question has two premises and two conclusions. If the premises re assumed to be true (irrespective of factuality), then, in respect of each of the items given below, which of the following conclusions follow logically? Premises: All metals are grey in colour. Some metals are heavy. Conclusion: I. All heavy metals are grey in colour. II. All light metals are not grey in colour.
From an alloy, two specimens are machined and tested separately under tension and compression. The engineering stress-strain curves as well as the true stress-true strain curves for tension and compression are plotted in the same diagram. Identify the correct statements:
P. The engineering stress-strain curves in tension and compression are identical.
Q. The true stress-true strain curve in compression is lower than the true stresstrue strain curve in tension due to Bauschinger effect.
R. The true stress-true strain curve in tension is above the corresponding engineering stress-strain, curve.
S. The true stress-true strain curve in tension and compression are identical.
In the following question four statements are given followed by four conclusions I, II, III and IV. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follow from the given statements. Statements 1. All metals are silver. 2. All silver are diamond. 3. Some diamonds are gold. 4. Some gold are marbles. Conclusions: I. Some gold are metals. II. All metals are diamond. III. Some silver are marble. IV. All gold are marble.
Which of the following statements are true about the general properties of non -metals? A. Non -Metal can be converted into thin sheets. B. Usually non - metals are heat insulators. C. Usually Non -Metals can be drawn in thin wires. D. Non – metallic oxides are usually acidic. 
Consider the given statement to be true even if they seem to be at variance with the commonly known facts and decide which of the given conclusions logically follow(s) from the statements. Statements: Some metals are iron. Some iron are heavy. Conclusion: 1. All iron are metals. 2. All heavy are metals.
In the question below are given three statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance from the commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding the commonly known facts. Statements: All Bottles are Caps. All Metals are Strong. Some Metals are Caps. Conclusions: I. Some Bottles are Metals. II. Some Strong is Bottle.
Which of the following statements are CORRECT? I. Oxides of metals are generally basic. II. Oxides of non-metals are generally acidic. III. Non-metals are generally electro positive.
Consider the following statements regarding ores: i. Highly reactive metals are separated from their ores by electrolysis. ii. Metals of medium reactivity are separated from their ores by reduction. iii. Metals of least reactivity are separated from their ores by roasting
An elliptical dislocation loop is gliding on plane ABCD of a single crystal of BCC material as shown in the following figure. It is gliding along the burger vector 'b'. Identify the correct statement.
Physics of Metals in Metallurgy mcq question image
P. Plane ABCD belongs to the family of (110).
Q. Burger vector 'b' belong to direction.
R. Dislocation has the edge character at point x and the screw character at point z.
S. Dislocation has the screw character at point x
Read the given statement(s) and conclusions carefully and select which of the conclusions logically follow(s) form the statement(s). Statement: All rings are metals All metals are amalgams. Conclusions: 1. All rings are amalgams 2. Some amalgams are metals