equal pressure only in x, y and z planes

pressure in the direction of flow only

pressure in the direction of force of gravity

equal pressure in all directions

equal pressure only in x, y and z planes

It is required to find the pressure difference between two horizontal pipes through which water is flowing using an inverted manometer. Two monomeric fluids with specific gravities 13.6 and 0.8 and are available. Which manomeric fluid is to be used now?

Fluid with specific gravity 13.6

Fluid with specific gravity 0.8

Central line method for estimation is suitable for _________.

building having large numbers of cross wall

building having large numbers of junctions

A dead weight tester is used widely for______

Testing magnitude of the given weight

Critical to Stagnation Pressure ratio \(\left( {\frac{{{P^*}}}{{{P_0}}}} \right)\) for an expansion process is

\(\frac{{{P^*}}}{{{P_0}}} = {\left[ {\frac{2}{{\gamma + 1}}} \right]^{\frac{{2\gamma }}{{\left( {\gamma - 1} \right)}}}}\)

\(\frac{{{P^*}}}{{{P_0}}} = {\left[ {\frac{2}{{\gamma + 1}}} \right]^{\frac{{\left( {\gamma + 1} \right)}}{{\left( {\gamma - 1} \right)}}}}\)

\(\frac{{{P^*}}}{{{P_0}}} = {\left[ {\frac{2}{{\gamma + 1}}} \right]^{\frac{\gamma }{{\left( {\gamma + 1} \right)}}}}\)

\(\frac{{{P^*}}}{{{P_0}}} = {\left[ {\frac{2}{{\gamma + 1}}} \right]^{\frac{\gamma }{{\left( {\gamma - 1} \right)}}}}\)

In estimation of quantity of plastering work, quantity of deduction for opening allowed for 2 m2 is:

No deduction is made for ends of beams

Deduction is allowed for one face of the wall

No deduction is made for ends of beams

Deduction is allowed for both faces of openings

Deduction is allowed for both face of the wall

In the space above the mercury column in a barometer tube, the gauge pressure of the vapour is

positive, but more than one atmosphere

positive, but less than one atmosphere

In the Centre Line Method of calculating quantities, the following rules for each item from foundation is applied. The total centre line length of each item calculated and for cross walls, deductions are made as follows:

1 full breadth of item at each junction

\(\dfrac{1}{2}\) breadth of item at each junction

1 full breadth of item at each junction

2 full breadth of item at each junction

157 + Mcqs in Measurement Pressure in Chemical Engineering Page 2 McqOptions

51.	Hydraulic ram is used for lifting heavy vehicles or items. What is the principle behind the application of hydraulic ram?
A.	Pascal's law
B.	Bernoulli's law
C.	Newton's law
D.	Navier-Stoke's law
Answer» B. Bernoulli's law

Discussion

52.	Manometer is a device used for measuring
A.	velocity at a point in a fluid
B.	Pressure at a point in fluid
C.	Discharge of fluid
D.	None of the above
Answer» C. Discharge of fluid

Discussion

53.	All fluids exert
A.	pressure in the direction of flow only
B.	pressure in the direction of force of gravity
C.	equal pressure in all directions
D.	equal pressure only in x, y and z planes
Answer» D. equal pressure only in x, y and z planes

Discussion

54.	In a differential manometer, a head of 0.5 m of fluid A in limb 1 is found to balance a head of 0.3 m of fluid B in limb 2. The atmospheric pressure is 760 mm of mercury. The ratio of specific gravities of A to B is:
A.	0.25
B.	0.6
C.	2
D.	4
Answer» C. 2

Discussion

55.	In the given figure pressure p, in kPa, is
A.	37
B.	48
C.	45.2
D.	51.3
E.	55
Answer» B. 48

Discussion

56.	In gauge pressure, the atmospheric pressure on the scale is marked as:
A.	1
B.	0
C.	100
D.	10
Answer» C. 100

Discussion

57.	It is required to find the pressure difference between two horizontal pipes through which water is flowing using an inverted manometer. Two monomeric fluids with specific gravities 13.6 and 0.8 and are available. Which manomeric fluid is to be used now?
A.	Fluid with specific gravity 13.6
B.	Fluid with specific gravity 0.8
C.	Both fluids can be used
D.	None can be used
Answer» C. Both fluids can be used

Discussion

58.	Central line method for estimation is suitable for _________.
A.	building having large numbers of cross wall
B.	building having large numbers of junctions
C.	walls having different widths
D.	walls having same widths
Answer» E.

Discussion

59.	If mercury in a barometer is replaced by water, the height of 2 cm of mercury will be following _________ cm of water.
A.	27.2
B.	50
C.	52
D.	13
Answer» B. 50

Discussion

60.	Calculate the volume (cubic metre) of the dry mortar required for 1 cubic metre brick work.
A.	0.18
B.	0.23
C.	0.3
D.	0.45
Answer» D. 0.45

Discussion

61.	In order to compute the quantities of R. C. C beams, lengths of beams are measured to the
A.	Nearest Millimetre
B.	Nearest half Centimetre
C.	Nearest Centimetre
D.	Nearest inch
Answer» B. Nearest half Centimetre

Discussion

62.	If a bar is cranked at both ends at an angle of 30°, then the extra length required when compared to a straight bar is (d = centre to centre distance between the top and bottom steel.)
A.	2 × 0.72 d
B.	2 × 0.27 d
C.	2 × 0.42 d
D.	2 × 0.24 d
Answer» C. 2 × 0.42 d

Discussion

63.	Pressure measurement is done by ______, by measuring heat loss from a heated wire.
A.	a Pirani gauge
B.	an orifice meter
C.	a manometer
D.	a barometer
Answer» B. an orifice meter

Discussion

64.	Pascal's law states that pressure at a point is equal in all directions in a/an-
A.	Laminar flow
B.	Inviscid flow
C.	Fluid at rest
D.	Turbulent flow
Answer» D. Turbulent flow

Discussion

65.	Calculate the quantity (cube m) of brick work for a room using the central line method, if the interior dimension of the room is 5 m × 4 m and height of the room is 3.5 m. The width of the wall is 300 mm and dimension of the door is 2 m × 1.2 m.
A.	19.2
B.	19.44
C.	20.16
D.	20.88
Answer» C. 20.16

Discussion

66.	For big work or projects, the percentage estimated cost provided in the estimate for the purchase of tools and plants is:
A.	2 to 5%
B.	1.5 to 2%
C.	1 to 1.5%
D.	10 to 15%
Answer» D. 10 to 15%

Discussion

67.	An open tank contains water to a depth of 2 m and oil over it to a depth of 1 m. If the specific gravity of oil is 0.8, then the pressure intensity at the interface of the two-fluid layers will be
A.	9750 N/m2
B.	8720 N/m2
C.	9347 N/m2
D.	7848 N/m2
Answer» E.

Discussion

68.	________ measures heat loss from a heated wire to measure pressure.
A.	Orifice meter
B.	Manometer
C.	Pirani gauge
D.	Barometer
Answer» D. Barometer

Discussion

69.	A hydraulic jack is used to compress a spring as shown in fig. stiffness of spring is 105 N/m. By applying a pressure ‘p’ in the hydraulic cylinder, the spring gets compressed by 10 mm. The cross-sectional area of the piston is 25 cm2. The applied pressure ‘p’ is
A.	4 × 105 Pascals
B.	40 Pascals
C.	250 Pascals
D.	25 Pascals
Answer» B. 40 Pascals

Discussion

70.	Pick up the excavation where measurements are made in square meters for payment.A. Ordinary cuttings up to 1 mB. Surface dressing up to 15 cm depthsC. Surface excavation up to 30 cm depths
A.	A only
B.	B only
C.	C only
D.	Both B and C
Answer» E.

Discussion

71.	For a static fluid, the increase of pressure at any point inside the fluid, in a vertically downward direction, must be equal to the product of the ________ of the fluid and depth from the free surface.
A.	density
B.	viscosity
C.	specific gravity
D.	specific weight
Answer» E.

Discussion

72.	A dead weight tester is used widely for______
A.	Producing high pressures
B.	Testing magnitude of the given weight
C.	Calibration of other equipment
D.	Accurate measurement of loads
Answer» D. Accurate measurement of loads

Discussion

73.	Atmospheric pressure head is equal to:
A.	10.3 m of water
B.	Zero m of water
C.	2.5 m of water
D.	8 m of water
Answer» B. Zero m of water

Discussion

74.	For brickwork, no deduction is made for the area of opening up to
A.	0.1 sq m
B.	0.2 sq m
C.	0.5 sq m
D.	1 sq m
Answer» B. 0.2 sq m

Discussion

75.	In a concrete mix of proportion 1 : 3 : 6, the actual quantity of sand, which is judged to have undergone 15% bulking, per unit volume of cement, will be
A.	3
B.	3.45
C.	4.5
D.	6
Answer» C. 4.5

Discussion

76.	A ______ is a device used for measuring pressure at a point in a fluid.
A.	thermometer
B.	hygrometer
C.	ammeter
D.	manometer
Answer» E.

Discussion

77.	Portion of an embankment having a uniform up gradient 1 in 500 is circular with radius 1000 m of the centre line. It subtends 180° at the centre. If the height of the bank is 1 m at the lower end, and side slopes 2: 1, the earthwork involved
A.	26,000 m3
B.	26,500 m3
C.	27,000 m3
D.	27,500 m3
Answer» E.

Discussion

78.	Deduction at the L-junction of the wall for the total length of the central line is __________.
A.	half the thickness of wall
B.	no reduction
C.	thickness of wall
D.	twice the thickness of wall
Answer» C. thickness of wall

Discussion

79.	Critical to Stagnation Pressure ratio \(\left( {\frac{{{P^*}}}{{{P_0}}}} \right)\) for an expansion process is
A.	\(\frac{{{P^*}}}{{{P_0}}} = {\left[ {\frac{2}{{\gamma + 1}}} \right]^{\frac{{2\gamma }}{{\left( {\gamma - 1} \right)}}}}\)
B.	\(\frac{{{P^*}}}{{{P_0}}} = {\left[ {\frac{2}{{\gamma + 1}}} \right]^{\frac{{\left( {\gamma + 1} \right)}}{{\left( {\gamma - 1} \right)}}}}\)
C.	\(\frac{{{P^*}}}{{{P_0}}} = {\left[ {\frac{2}{{\gamma + 1}}} \right]^{\frac{\gamma }{{\left( {\gamma + 1} \right)}}}}\)
D.	\(\frac{{{P^*}}}{{{P_0}}} = {\left[ {\frac{2}{{\gamma + 1}}} \right]^{\frac{\gamma }{{\left( {\gamma - 1} \right)}}}}\)
Answer» E.

Discussion

80.	In which system, unit of pressure is psi?
A.	FPS
B.	MKS
C.	CGS
D.	SI
Answer» B. MKS

Discussion

81.	In estimation of quantity of plastering work, quantity of deduction for opening allowed for 2 m2 is:
A.	Deduction is allowed for one face of the wall
B.	No deduction is made for ends of beams
C.	Deduction is allowed for both faces of openings
D.	Deduction is allowed for both face of the wall
Answer» B. No deduction is made for ends of beams

Discussion

82.	A tank is containing water up to a height of 2 m. Calculate the pressure at the bottom of the tank in N/m2
A.	19.62
B.	1.962
C.	196.2
D.	19620
Answer» E.

Discussion

83.	A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1000 kg. The force required on the plunger is equal to:
A.	10 kg
B.	100 kg
C.	1000 kg
D.	10,000 kg
Answer» B. 100 kg

Discussion

84.	In the space above the mercury column in a barometer tube, the gauge pressure of the vapour is
A.	positive, but more than one atmosphere
B.	negative
C.	zero
D.	positive, but less than one atmosphere
Answer» C. zero

Discussion

85.	Observe the given plan and answer the question that follows.Total centre line length of walls in the plan is:
A.	20.08 m
B.	19.87 m
C.	28.08 m
D.	23.08
Answer» E.

Discussion

86.	Piezometer is suitable for fluid related measurements which are _______.
A.	small and positive
B.	small and negative
C.	large and positive
D.	large and negative
Answer» B. small and negative

Discussion

87.	In the Centre Line Method of calculating quantities, the following rules for each item from foundation is applied. The total centre line length of each item calculated and for cross walls, deductions are made as follows:
A.	\(\dfrac{1}{2}\) breadth of item at each junction
B.	1 full breadth of item at each junction
C.	2 full breadth of item at each junction
D.	no deductions
Answer» B. 1 full breadth of item at each junction

Discussion

88.	A jet of water has a diameter of 0.3 cm. The absolute surface tension of water is 0.072 N/m and atmospheric pressure is 101.2 kN/m2. The absolute pressure within the jet of water will be
A.	101.104 kN/m2
B.	101.152 kN/m2
C.	101.248 kN/m2
D.	101.296 kN/m2
Answer» D. 101.296 kN/m2

Discussion

89.	Let the atmospheric pressure at sea level is 70 cm of mercury. Convert this pressure in terms of the height of water (in meter).
A.	8
B.	9
C.	8.5
D.	9.5
Answer» E.

Discussion

90.	How many bricks are required for 1 cubic meter of brick masonry work?
A.	300
B.	500
C.	1000
D.	1500
Answer» C. 1000

Discussion

91.	A container contains water and oil of specific gravity 0.9 Oil is at the top with a depth of 1m and water at the bottom with a height 2m. Assuming g = 9.81 m/s2, the pressure intensity at the bottom of the container in kPa will be:
A.	15.6
B.	21.54
C.	28.45
D.	13.2
Answer» D. 13.2

Discussion

92.	If the density of mercury is 13.58 g/cc, the pressure of 4 kPa is equivalent to:
A.	100 mm Hg
B.	15.02 mm Hg
C.	60.08 mm Hg
D.	30.04 mm Hg
Answer» E.

Discussion

93.	If the number of bellows elements is made double and the thickness of the bellows element is made half, the displacement of the element for the same applied pressure would be the _______.
A.	16 times
B.	4 times
C.	same
D.	one-fourth
Answer» B. 4 times

Discussion

94.	If the gauge pressure of air in a cylinder is 250 kPa, then it’s absolute pressure will be _______.
A.	150 kPa
B.	50 kPa
C.	350 kPa
D.	450 kPa
Answer» D. 450 kPa

Discussion

95.	In horizontal D.P.C, thickness of cement concrete (1 : 2 : 4) is?
A.	2 cm
B.	4 cm
C.	6 cm
D.	8 cm
Answer» C. 6 cm

Discussion

96.	A project with the production cost of Rs. 100 crores, has 20,000 man-months as direct labour, of which 60% is non-productive time. The labour cost as estimated while tendering is 20 % of the project cost. If 15 % of the wastage resulting from non-productive time is eliminated by using improved methods, the resulting saving in labour cost will be
A.	14.5%
B.	18.5%
C.	22.5%
D.	26.5%
Answer» D. 26.5%

Discussion

97.	_____ gives an idea about the pressure in a static fluid.
A.	Grashof’s law
B.	Weber’s law
C.	Pascal’s law
D.	Newton’s law
Answer» D. Newton’s law

Discussion

98.	For a gauge pressure of A of – 10.89 kPa, what is the specific gravity of the gauge liquid B in the figure below?
A.	1
B.	2
C.	3
D.	None of these
Answer» B. 2

Discussion

99.	In viscosity meters the quantity measured is
A.	Buoyant force
B.	Frictional force
C.	Coriolis force
D.	Centrifugal force
Answer» C. Coriolis force

Discussion

100.	An open tank contains water up to a depth of 2 m and above it an oil of specific gravity 0.9 for a depth of 1 m. Find the pressure intensity at the interface of the two liquids.
A.	7829 N/m2
B.	9829 N/m2
C.	8829 N/m2
D.	6829 N/m2
Answer» D. 6829 N/m2

Discussion

Explore topic-wise MCQs in Chemical Engineering.

Hydraulic ram is used for lifting heavy vehicles or items. What is the principle behind the application of hydraulic ram?

Manometer is a device used for measuring

All fluids exert

In a differential manometer, a head of 0.5 m of fluid A in limb 1 is found to balance a head of 0.3 m of fluid B in limb 2. The atmospheric pressure is 760 mm of mercury. The ratio of specific gravities of A to B is:

In the given figure pressure p, in kPa, is

In gauge pressure, the atmospheric pressure on the scale is marked as:

It is required to find the pressure difference between two horizontal pipes through which water is flowing using an inverted manometer. Two monomeric fluids with specific gravities 13.6 and 0.8 and are available. Which manomeric fluid is to be used now?

Central line method for estimation is suitable for _________.

If mercury in a barometer is replaced by water, the height of 2 cm of mercury will be following _________ cm of water.

Calculate the volume (cubic metre) of the dry mortar required for 1 cubic metre brick work.

In order to compute the quantities of R. C. C beams, lengths of beams are measured to the

If a bar is cranked at both ends at an angle of 30°, then the extra length required when compared to a straight bar is (d = centre to centre distance between the top and bottom steel.)

Pressure measurement is done by ______, by measuring heat loss from a heated wire.

Pascal's law states that pressure at a point is equal in all directions in a/an-

Calculate the quantity (cube m) of brick work for a room using the central line method, if the interior dimension of the room is 5 m × 4 m and height of the room is 3.5 m. The width of the wall is 300 mm and dimension of the door is 2 m × 1.2 m.

For big work or projects, the percentage estimated cost provided in the estimate for the purchase of tools and plants is:

An open tank contains water to a depth of 2 m and oil over it to a depth of 1 m. If the specific gravity of oil is 0.8, then the pressure intensity at the interface of the two-fluid layers will be

________ measures heat loss from a heated wire to measure pressure.

A hydraulic jack is used to compress a spring as shown in fig. stiffness of spring is 105 N/m. By applying a pressure ‘p’ in the hydraulic cylinder, the spring gets compressed by 10 mm. The cross-sectional area of the piston is 25 cm2. The applied pressure ‘p’ is

Pick up the excavation where measurements are made in square meters for payment.A. Ordinary cuttings up to 1 mB. Surface dressing up to 15 cm depthsC. Surface excavation up to 30 cm depths

For a static fluid, the increase of pressure at any point inside the fluid, in a vertically downward direction, must be equal to the product of the ________ of the fluid and depth from the free surface.

A dead weight tester is used widely for______

Atmospheric pressure head is equal to:

For brickwork, no deduction is made for the area of opening up to

In a concrete mix of proportion 1 : 3 : 6, the actual quantity of sand, which is judged to have undergone 15% bulking, per unit volume of cement, will be

A ______ is a device used for measuring pressure at a point in a fluid.

Portion of an embankment having a uniform up gradient 1 in 500 is circular with radius 1000 m of the centre line. It subtends 180° at the centre. If the height of the bank is 1 m at the lower end, and side slopes 2: 1, the earthwork involved

Deduction at the L-junction of the wall for the total length of the central line is __________.

Critical to Stagnation Pressure ratio \(\left( {\frac{{{P^*}}}{{{P_0}}}} \right)\) for an expansion process is

In which system, unit of pressure is psi?

In estimation of quantity of plastering work, quantity of deduction for opening allowed for 2 m2 is:

A tank is containing water up to a height of 2 m. Calculate the pressure at the bottom of the tank in N/m2

A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1000 kg. The force required on the plunger is equal to:

In the space above the mercury column in a barometer tube, the gauge pressure of the vapour is

Observe the given plan and answer the question that follows.Total centre line length of walls in the plan is:

Piezometer is suitable for fluid related measurements which are _______.

In the Centre Line Method of calculating quantities, the following rules for each item from foundation is applied. The total centre line length of each item calculated and for cross walls, deductions are made as follows:

A jet of water has a diameter of 0.3 cm. The absolute surface tension of water is 0.072 N/m and atmospheric pressure is 101.2 kN/m2. The absolute pressure within the jet of water will be

Let the atmospheric pressure at sea level is 70 cm of mercury. Convert this pressure in terms of the height of water (in meter).

How many bricks are required for 1 cubic meter of brick masonry work?

A container contains water and oil of specific gravity 0.9 Oil is at the top with a depth of 1m and water at the bottom with a height 2m. Assuming g = 9.81 m/s2, the pressure intensity at the bottom of the container in kPa will be:

If the density of mercury is 13.58 g/cc, the pressure of 4 kPa is equivalent to:

If the number of bellows elements is made double and the thickness of the bellows element is made half, the displacement of the element for the same applied pressure would be the _______.

If the gauge pressure of air in a cylinder is 250 kPa, then it’s absolute pressure will be _______.

In horizontal D.P.C, thickness of cement concrete (1 : 2 : 4) is?

_____ gives an idea about the pressure in a static fluid.

For a gauge pressure of A of – 10.89 kPa, what is the specific gravity of the gauge liquid B in the figure below?

In viscosity meters the quantity measured is

An open tank contains water up to a depth of 2 m and above it an oil of specific gravity 0.9 for a depth of 1 m. Find the pressure intensity at the interface of the two liquids.