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SECOND SERIES EXAM - MECHANICAL ENGINEERING

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

Which prime mover is used to convert Hydraulic Energy -------> Mechanical Energy .

a)

PUMP

b)

WATER TURBINE

c)

STEAM TURBINE

d)

BOILER

2.

Which of the following is an IMPULSE turbine.

a)

Francis turbine

b)

Kaplan turbine

c)

Pelton wheel turbine

d)

Propeller turbine

3.

Which of the following is an REACTION turbine.

a)

Pelton turbine

b)

Otto turbine

c)

Gas turbine

d)

Francis turbine

4.

Which of the turbine has SPECIFIC SPEED ranges between 50-260 S I unit .

a)

Pelton turbine

b)

kaplan turbine

c)

francis turbine

d)

propeller turbine

5.

Which of the turbine hasnot required DRAFT tube .

a)

kaplan turbine

b)

francis turbine

c)

pelton wheel turbine

d)

propeller turbine

6.

In water turbine ,SHAFT POWER / BRAKE POWER or SP/BP = .....................

a)

mechanical efficiency

b)

overall efficiency

c)

thermal efficiency

d)

volumetric efficiency

7.

Which of the following turbine has "Radial flow" .

a)

francis turbine

b)

kaplan turbine

c)

pelton wheel turbine

d)

propeller turbine

8.

Which of the following turbine has "High Discharge" .

a)

propeller turbine

b)

francis turbine

c)

pelton wheel turbine

d)

kaplan turbine

9.

Which of the following turbine is "High head " turbine.

a)

francis turbine

b)

pelton wheel turbine

c)

kaplan turbine

d)

stryling turbine

10.

Which type of turbine is fitted in Idukki-Hydroelectric power House.

a)

kaplan turbine

b)

francis turbine

c)

strling turbine

d)

pelton wheel turbine

11.

The PUMP is used to convert .........................

a)

Hy. E-------> M.E

b)

M.E-------> Hy.E

c)

T.E-------> M.E

d)

Hy. E-------> T.E

12.

Which mechanical system is called the "Heart of Hydraulic System".

a)

Turbine

b)

Pump

c)

boiler

d)

filter

13.

Multistage centrifugal pump required for High Discharge, is to be connected in .......................

a)

Parallel

b)

Series

c)

Radial

d)

Axial

14.

Which of the following is an example of Positive displacement Pump.

a)

Centrifugal pump

b)

Axial flow pump

c)

Propeller pump

d)

Reciproacting pump

15.

Footvalve is required for .........................

a)

Hand pump

b)

Piston pump

c)

Centrifugal pump

d)

Reciprocating pump

16.

The AIR removing process , PRIMING is required for............

a)

Gear pump

b)

Screw pump

c)

Reciprocating pump

d)

Centrifugal pump

17.

The main components Cylinder ,piston & connecting rod ,containing pump is ................

a)

Cenrifugal pump

b)

Reciprocating pump

c)

Jet pump

d)

Deepwell pump

18.

The main components rotating IMPELLER ,containing pump is ................

a)

Jet pump

b)

Air lift pump

c)

centrifugal pump

d)

reciprocating pump

19.

Which type of pump is required for AIR COMPRESSOR .

a)

Hand pump

b)

Gear pump

c)

Air lift pump

d)

propeller pump

20.

Multistage centrifugal pump required for High Head, is to be connected in .......................

a)

parallel

b)

axial

c)

radial

d)

series

21.

The ratio of Volume to Mass , is called .....................

a)

density

b)

specific weight

c)

specific volume

d)

specific gravity

22.

The specific gravity of WATER is ........................

a)

0

b)

1.5

c)

1

d)

2

23.

P vacuum = ................ - ...............

a)

P abs - P atm

b)

P atm - P abs

c)

P gauge - P abs

d)

P atm - P gauge

24.

Reynolds number > 4000 , this type of flow is called ..............

a)

Turbulant flow

b)

Laminar flow

c)

Steady flow

d)

Uniform flow

25.

The Density isnot constant , this type of fluid flow is called...............

a)

uniform flow

b)

laminar flow

c)

steady flow

d)

compressible flow