The main advantage of a CRO is
A.it is a voltage sensitive instrument
B.an inertialess beam of electrons acting as a pointer
C.a fluorescent screen acts as scale
D.None of the above
Category: Mechanical Engineering Mcqs
Which of the following can be used as sensing element for an instrument?
A.Spring
B.Proving ring
C.Bourdon tube
D.Diaphragm
E.Any of the above
The statement —- if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two —- is known as
A.Law of triangle of forces
B.Lami’s theorem
C.D’Alembert’s principle
D.Law of polygon of forces
E.Newtons law of forces
Baffles are provided on engines to
A.Improve heat transfers rate
B.Improve engine performance
C.Reduce fuel consumption
D.Assist in starting the engine
E.Guard against dirt and dust
Selection is
A.Matching
B.Finding
C.Hiring
D.Judging
E.None of the above
The average values of modulus of rigidity for aluminium brass, copper and steel in descending order is
A.Aluminium, brass, copper, nickel and steel
B.Aluminium, copper, brass, nickel and steel
C.Aluminium, nickel, brass, copper and steel
D.Aluminium, brass, nickel, copper and steel
E.Aluminium, copper, nickel, brass and steel
The internal energy of a substance depdnds on
A.Temperature
B.Pressure
C.Volume
D.Entropy
E.Velocity
Protection from radiations is possible through
A.shielding of source of radiation
B.increased distance from the source of radiation
C.limitation on time of exposure
D.All of the above
Which one of the following is not a angle measuring device?
A.Bevel protector
B.Signal bar
C.Combination square
D.Angle iron
E.Angle gauge blocks
The expected life of a GLS lamp is nearly
A.50 hours
B.100 hours
C.1000 hours
D.5000 hours
E.10,000 hours
