Dirt or gum in fuel nozzle or jets may cause
A.Excessive fuel consumption
B.Lack of engine power
C.Smoky black exhaust
D.White exhaust
E.Uneven engine speed
Category: Mechanical Engineering Mcqs
In vapour compression cycle the highest temperature of the refrigerant during the cycle occurs
A.After expansion valve
B.After evaporator
C.After condenser
D.After compression
E.None of the above
Which of the following enters the super heater of a boiler?
A.Cold water
B.Hot water
C.Wet steam
D.Dry steam
E.Superheated steam
In case of belt conveyors, the permissible slope will be maximum while conveying
A.Earth, dry
B.Anthracite coal
C.Dry sand
D.Wood chips
With high speed steel tools the back rake angle is usually zero while machining
A.Aluminium
B.Brass
C.Cast iron
D.Soft steel
E.Hand steel
A most economical channel section is one which for a given cross-section area
A.Has maximum velocity of fluid
B.Has maximum discharge
C.Has maximum depth of fluid flowing
D.Has maximum wetted perimeter
E.Has maximum hydraulic radius
Which of the following resistance depends on the train speed?
A.Journal friction
B.Track resistance
C.Frictional resistance
D.all of the above
Which one of the following is not usually considered particular advantage of a Buttress dam?
A.Economy in use of concrete
B.Less uplift force
C.The power house and switchyard etc. can be located between the buttresses
D.Because of thin members, the volume changes are significant
E.Due to thin section, the problem of temperature control is minimised.
Two 3 mm thick MS sheets are to be welded. Electrodes of 16, 12, 10 Nos, are available which one would you choose.
A.16
B.12
C.10
D.Any of the above
E.None of the above
Which of the following is a public sector undertaking?
A.DCM Ltd.
B.Larsen & Toubro Ltd
C.Instrumentation Ltd.
D.JK Synthetics Ltd.
