Explore topic-wise MCQs in Electromagnetic Theory.

This section includes 23 Mcqs, each offering curated multiple-choice questions to sharpen your Electromagnetic Theory knowledge and support exam preparation. Choose a topic below to get started.

1.

The vector product of two vectors is given by area of the parallelogram. State True/False.

A. True
B. False
Answer» B. False
2.

Black rots in eggs is most commonly caused by

A. species of Micrococcus or Bacillus
B. species of Proteus
C. all of these
D. molds or yeasts
Answer» C. all of these
3.

Green rots in eggs is chiefly caused by

A. Micrococcus or Bacillus species
B. Pseudomonas fluorescens
C. all of the above
D. Molds or yeasts
Answer» C. all of the above
4.

The growth of Streptomyces on straw or elsewhere near the egg may produce

A. hay odour
B. musty or earthy flavors
C. cabbage-water flavor
D. fishy flavor
Answer» C. cabbage-water flavor
5.

The greening of sausage may appear as a green ring not far from the casing, a green core, or a green surface. The cause of greening is the production of hydrogen peroxide by

A. catalase negative bacteria
B. hetero-fermentative species
C. none of these
D. both ( and (
Answer» E.
6.

Which of the following (s) is/are responsible for the green patches on the surface of meats under aerobic conditions?

A. P. asperulum
B. P. expansum
C. All of these
D. P. oxalicum
Answer» D. P. oxalicum
7.

Which of the following microorganisms grow in beef at a temperature of 15°C and above?

A. Pseudomonas
B. Micrococci
C. Lactobacillus
D. Both ( and (
Answer» E.
8.

Pink rots in eggs is caused by the strains of

A. Pseudomonas fluorescens
B. Pseudomonas
C. none of the above
D. species of Micrococcus or Bacillus
Answer» B. Pseudomonas
9.

Vacuum packaged meats are spoiled by

A. Lactobacilli
B. thermosphacta
C. none of these
D. Both ( and (
Answer» E.
10.

The spoilage of eggs by fungi goes through stages of mold growth that give the defects their names. Very early mold growth is termed

A. fungal rotting
B. pin-spot molding
C. any of these
D. superficial fungal spoilage
Answer» C. any of these
11.

Which of the following is recommended for the improvement in flavor during ageing of beef under controlled conditions?

A. Rhizopus
B. Thamnidium
C. M. mucedo
D. T. elegans
Answer» C. M. mucedo
12.

Black spot in meat are produced mainly by

A. Thamnidium
B. Cladosporium
C. Rhizopus
D. Mucor
Answer» C. Rhizopus
13.

Lactic acid bacteria in meats may be responsible for

A. production of green discoloration
B. slime formation at the surface or within especially in presence of sucrose
C. all of the above
D. souring
Answer» D. souring
14.

FIND_THE_PROJECTION_OF_A_ON_B._GIVEN_A_=_10J_+_3K_AND_B_=_4J_+_5K.?$

A. 6
B. 6.25
C. 6.5
D. 6.75
Answer» C. 6.5
15.

The_vector_product_of_two_vectors_is_given_by_area_of_the_parallelogram._State_True/False.$

A. True
B. False
Answer» B. False
16.

Distance and position vectors rely on field strength. State True/False?

A. True
B. False
Answer» B. False
17.

The distance vector can be used to compute which of the following?

A. Dot product
B. Cross product
C. Unit normal vector
D. Area
Answer» D. Area
18.

The work-electric field relation is given by

A. Volume integral
B. Surface integral
C. Line integral
D. Relation impossible
Answer» D. Relation impossible
19.

The polar form of Cartesian coordinates is

A. Circular coordinates
B. Spherical coordinates
C. Cartesian coordinates
D. Space coordinates
Answer» B. Spherical coordinates
20.

The unit vector to the points p1(0,1,0), p2(1,0,1), p3(0,0,1) is

A. (-j – k)/1.414
B. (-i – k)/1.414
C. (-i – j)/1.414
D. (-i – j – k)/1.414
Answer» B. (-i ‚Äö√Ñ√∂‚àö√ë‚àö¬® k)/1.414
21.

Find a vector normal to a plane consisting of points p1(0,1,0), p2(1,0,1) and p3(0,0,1)

A. –j – k
B. –i – j
C. –i – k
D. –i – j – k
Answer» B. ‚Äö√Ñ√∂‚àö√ë‚àö¬®i ‚Äö√Ñ√∂‚àö√ë‚àö¬® j
22.

The divergence of distance vector is

A. 0
B. 3
C. 2
D. 1
Answer» C. 2
23.

The distance vector is obtained in

A. Cartesian coordinate system
B. Spherical coordinate system
C. Circular coordinate system
D. Space coordinate system
Answer» E.