Objective Questions on Mechanical Engineering
49-The forces, which meet at one point and their lines of action also lie on the same plane, are known as:
(A) Coplanar concurrent forces
(B) Coplanar non-concurrent forces
(C) Non-coplanar concurrent forces
(D) Non-coplanar non-concurrent forces
50-Elaticcity of a body is:
(A) The property by which a body returns to its original shape after removal of the load
(B) The ratio of stress to strain
(C) The resistance to the force acting
(D) Large deformability as in case of rubber
51-A micrometer has a negative error of 0.02mm. What is the correct reading when the micrometer measures 25.37mm:
(A) 25.35mm
(B) 25.43mm
(C) 25.39mm
(D) 25.41mm
52-An LVDT uses following type of core:
(A) Variable Core
(B) Soft Iron Core
(C) Hard Iron Core
(D) Moving Displacement Core
53-Clino meter is an instrument concerned with:
(A) Temperature measurement
(B) Linear measurement
(C) Flatness measurement
(D) Angular measurement
54-LVDT is a following type of Transducer:
(A) Eddy current
(B) Resistance
(C) Inductive
(D) Magnetostriction
55-A transducer converts ____ from one form to another.
(A) Sound
(B) Heat
(C) Energy
(D) Electricity
56-A feeler gauge is used to check:
(A) Screw Pitch
(B) Surface Roughness
(C) Thickness of clearance
(D) Unsymmetrical Shape
57-Systematic errors are:
(A) Instrumental errors
(B) Environmental errors
(C) Observational errors
(D) All of the above
58-In a metal resistance thermometer the sensing element is usually made by:
(A) Brass
(B) Cast Iron
(C) Mild steel
(D) Platinum
59-A Thermocouple gauge is one type of:
(A) Mcleod gauge
(B) Slack diaphragm gauge
(C) Thermal conductivity gauge
(D) Pirani gauge
60-Washers help to:
(A) Improve appearance
(B) Distribute force over a large area
(C) Distribute force to the bolt
(D) Cover the clearance hole of the work piece
ANSWERS:
49-(A), 50-(A), 51-(C), 52-(B), 53-(D), 54-(C), 55-(C), 56-(C), 57-(A), 58-(D), 59-(D), 60-(C)